diff --git a/app.js b/app.js
index b2e9674..68278b7 100644
--- a/app.js
+++ b/app.js
@@ -17,7 +17,9 @@ app.set('view engine', 'jten');
 // uncomment after placing your favicon in /public
 app.use(morgan('dev'));
 app.use(bodyParser.json());
-app.use(bodyParser.urlencoded({ extended: false }));
+app.use(bodyParser.urlencoded({
+  extended: false,
+}));
 
 app.use('/', require('./routes/index'));
 app.use('/', require('./routes/service-discovery'));
diff --git a/lib/citizen.js b/lib/citizen.js
index c4f2edc..98a4062 100644
--- a/lib/citizen.js
+++ b/lib/citizen.js
@@ -1,8 +1,12 @@
 /* eslint-disable no-console */
-const { format } = require('util');
+const {
+  format,
+} = require('util');
 const commander = require('commander');
 const Listr = require('listr');
-const { red } = require('colors');
+const {
+  red,
+} = require('colors');
 const debug = require('debug');
 
 const citizen = require('../package.json');
@@ -56,33 +60,32 @@ const runPublish = (namespace, name, provider, version, cmd) => {
   const targetDir = process.cwd();
   const moduleFullPath = `${namespace}/${name}/${provider}/${moduleversion}`;
 
-  const tasks = new Listr([
-    {
-      title: 'compress the terraform module',
-      task: async (ctx) => {
-        const files = await makeFileList(targetDir);
-        verbose(`files to compress: ${files}`);
-        const tarball = await makeTarball(targetDir, files);
-        ctx.tarball = tarball;
-      },
+  const tasks = new Listr([{
+    title: 'compress the terraform module',
+    task: async (ctx) => {
+      const files = await makeFileList(targetDir);
+      verbose(`files to compress: ${files}`);
+      const tarball = await makeTarball(targetDir, files);
+      ctx.tarball = tarball;
     },
-    {
-      title: `publish ${moduleFullPath}`,
-      task: async (ctx) => {
-        try {
-          const res = await publish(registryAddr, moduleFullPath, ctx.tarball, owner);
-          verbose(`response status code form registry: ${res.statusCode}`);
-          if (res.statusCode >= 400) {
-            throw new Error(`The registry server is something wrong: ${res.statusMessage}`);
-          }
-        } catch (err) {
-          if (err.code === 'ECONNREFUSED') {
-            throw new Error('The registry server doesn\'t response. Please check the registry.');
-          }
-          throw err;
+  },
+  {
+    title: `publish ${moduleFullPath}`,
+    task: async (ctx) => {
+      try {
+        const res = await publish(registryAddr, moduleFullPath, ctx.tarball, owner);
+        verbose(`response status code form registry: ${res.statusCode}`);
+        if (res.statusCode >= 400) {
+          throw new Error(`The registry server is something wrong: ${res.statusMessage}`);
+        }
+      } catch (err) {
+        if (err.code === 'ECONNREFUSED') {
+          throw new Error('The registry server doesn\'t response. Please check the registry.');
         }
-      },
+        throw err;
+      }
     },
+  },
   ]);
 
   tasks.run().catch((err) => {
@@ -125,7 +128,9 @@ commander
   });
 
 commander
-  .command('*', { noHelp: true })
+  .command('*', {
+    noHelp: true,
+  })
   .action((env) => {
     console.error(`No command: ${env}`);
   });
diff --git a/lib/logger.js b/lib/logger.js
index f292e62..99a98f7 100644
--- a/lib/logger.js
+++ b/lib/logger.js
@@ -2,6 +2,9 @@ const pino = require('pino');
 
 const loggerName = process.env.npm_package_name || 'citizen';
 
-const logger = pino({ name: loggerName, level: 'error' });
+const logger = pino({
+  name: loggerName,
+  level: 'error',
+});
 
 module.exports = logger;
diff --git a/lib/module.js b/lib/module.js
index 0872fbd..2138d00 100644
--- a/lib/module.js
+++ b/lib/module.js
@@ -2,7 +2,9 @@ const globby = require('globby');
 const tar = require('tar');
 const semver = require('semver');
 const request = require('request');
-const { promisify } = require('util');
+const {
+  promisify,
+} = require('util');
 const verbose = require('debug')('citizen:client');
 
 const post = promisify(request.post);
@@ -32,13 +34,11 @@ const makeFileList = async (target = __dirname) => {
 };
 
 const makeTarball = (target = __dirname, filelist = []) => new Promise((resolve, reject) => {
-  const compressed = tar.create(
-    {
-      cwd: target,
-      gzip: true,
-    },
-    filelist,
-  );
+  const compressed = tar.create({
+    cwd: target,
+    gzip: true,
+  },
+  filelist);
   const buffers = [];
 
   compressed
diff --git a/lib/module.spec.js b/lib/module.spec.js
index ed2ba8c..3dd8f68 100644
--- a/lib/module.spec.js
+++ b/lib/module.spec.js
@@ -1,9 +1,15 @@
 /* eslint-disable no-unused-expressions */
 const fs = require('fs');
 const path = require('path');
-const { expect } = require('chai');
-const { Duplex } = require('stream');
-const { promisify } = require('util');
+const {
+  expect,
+} = require('chai');
+const {
+  Duplex,
+} = require('stream');
+const {
+  promisify,
+} = require('util');
 const tar = require('tar');
 const recursive = require('recursive-readdir');
 const rimraf = require('rimraf');
@@ -113,7 +119,9 @@ describe('module\'s', () => {
           tarball.push(compressed);
           tarball.push(null);
 
-          tarball.pipe(tar.x({ cwd: UNTAR_DIR }))
+          tarball.pipe(tar.x({
+            cwd: UNTAR_DIR,
+          }))
             .on('finish', () => {
               recursive(UNTAR_DIR, (err, list) => {
                 expect(list).to.have.members([
@@ -142,7 +150,9 @@ describe('module\'s', () => {
           tarball.push(compressed);
           tarball.push(null);
 
-          tarball.pipe(tar.x({ cwd: UNTAR_DIR }))
+          tarball.pipe(tar.x({
+            cwd: UNTAR_DIR,
+          }))
             .on('finish', () => {
               recursive(UNTAR_DIR, (err, list) => {
                 expect(list).to.have.members([
diff --git a/lib/storage.js b/lib/storage.js
index 24d9543..a94b56c 100644
--- a/lib/storage.js
+++ b/lib/storage.js
@@ -6,11 +6,17 @@ let getModule;
 
 if (process.env.CITIZEN_STORAGE === 's3') {
   ({
-    type, saveModule, hasModule, getModule,
+    type,
+    saveModule,
+    hasModule,
+    getModule,
   } = require('../storages/s3'));
 } else {
   ({
-    type, saveModule, hasModule, getModule,
+    type,
+    saveModule,
+    hasModule,
+    getModule,
   } = require('../storages/file'));
 }
 
diff --git a/lib/store.js b/lib/store.js
index a2dc369..05ae6fb 100644
--- a/lib/store.js
+++ b/lib/store.js
@@ -9,11 +9,23 @@ let increaseDownload;
 
 if (process.env.CITIZEN_DATABASE === 'mongodb') {
   ({
-    db, save, findOne, findAll, getVersions, getLatestVersion, increaseDownload,
+    db,
+    save,
+    findOne,
+    findAll,
+    getVersions,
+    getLatestVersion,
+    increaseDownload,
   } = require('../stores/mongodb'));
 } else {
   ({
-    db, save, findOne, findAll, getVersions, getLatestVersion, increaseDownload,
+    db,
+    save,
+    findOne,
+    findAll,
+    getVersions,
+    getLatestVersion,
+    increaseDownload,
   } = require('../stores/nedb'));
 }
 
diff --git a/lib/util.js b/lib/util.js
index 4c6db7a..59b1e36 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -1,15 +1,6 @@
-const { readFile } = require('fs');
-const { basename, extname, join } = require('path');
-const { promisify } = require('util');
-const hcl = require('gopher-hcl');
-const tar = require('tar');
-const { Duplex } = require('stream');
-const { URLSearchParams } = require('url');
-const recursive = require('recursive-readdir');
-const _ = require('lodash');
-const tmp = require('tmp');
-
-const readFileProm = promisify(readFile);
+const {
+  URLSearchParams,
+} = require('url');
 
 const makeUrl = (req, search) => {
   const params = new URLSearchParams(search);
@@ -19,120 +10,6 @@ const makeUrl = (req, search) => {
   return `${req.baseUrl}${req._parsedUrl.pathname}${searchStr}`;
 };
 
-const ignore = (file, stats) => {
-  if ((stats.isDirectory() || extname(file) === '.tf') && !basename(file).startsWith('._')) {
-    return false;
-  }
-  return true;
-};
-
-const hclToJson = async (filePath) => {
-  const content = await readFileProm(filePath);
-  const json = hcl.parse(content.toString());
-
-  return json;
-};
-
-const extractDefinition = async (files, targetPath) => {
-  const tfFiles = files.filter((f) => {
-    const relativePath = f.replace(targetPath, '');
-    if (relativePath.lastIndexOf('/') > 0) {
-      return false;
-    }
-    return true;
-  });
-
-  const promises = tfFiles.map(async (r) => {
-    const j = await hclToJson(r);
-    return j;
-  });
-  const list = await Promise.all(promises);
-
-  return _.reduce(list, (l, accum) => _.merge(accum, l), {});
-};
-
-const nomarlizeModule = module => ({
-  path: '',
-  name: module.name || '',
-  readme: '',
-  empty: !module,
-  inputs: module.variable
-    ? Object.keys(module.variable).map(name => ({ name, ...module.variable[name] }))
-    : [],
-  outputs: module.output
-    ? Object.keys(module.output).map(name => ({ name, ...module.output[name] }))
-    : [],
-  dependencies: [],
-  resources: module.resource
-    ? Object.keys(module.resource).map(type => ({ name: Object.keys(module.resource)[0], type }))
-    : [],
-});
-
-const extractSubmodules = async (definition, files, targetPath) => {
-  let pathes = [];
-  if (definition.module) {
-    const submodules = Object.keys(definition.module).map(key => definition.module[key].source);
-    pathes = _.uniq(submodules);
-  }
-
-  const promises = pathes.map(async (p) => {
-    const data = await extractDefinition(files, join(targetPath, p));
-    data.name = p.substr(p.lastIndexOf('/') + 1);
-
-    let result = [data];
-    if (data.module) {
-      const m = await extractSubmodules(data, files, join(targetPath, p));
-      result = result.concat(m);
-    }
-    return result;
-  });
-
-  const submodules = _.flatten(await Promise.all(promises));
-  return submodules;
-};
-
-const parseHcl = (moduleName, compressedModule) => new Promise((resolve, reject) => {
-  const stream = new Duplex();
-  stream.push(compressedModule);
-  stream.push(null);
-
-  tmp.dir({ unsafeCleanup: true }, (err, tempDir, cleanupCallback) => {
-    if (err) { return reject(err); }
-
-    return stream.pipe(tar.x({ cwd: tempDir }))
-      .on('finish', async () => {
-        try {
-          const files = await recursive(tempDir, [ignore]);
-
-          // make a root module definition
-          const rootData = await extractDefinition(files, tempDir);
-          rootData.name = moduleName;
-          const rootDefinition = nomarlizeModule(rootData);
-
-          // make submodules definition
-          const submodulesData = await extractSubmodules(rootData, files, tempDir);
-          const submodulesDefinition = submodulesData.map(s => nomarlizeModule(s));
-          submodulesDefinition.forEach((s) => {
-            let modulePath = files.find(f => f.includes(`/${s.name}/`));
-            modulePath = modulePath.replace(`${tempDir}/`, '');
-            modulePath = modulePath.substr(0, modulePath.lastIndexOf('/'));
-            s.path = modulePath; // eslint-disable-line no-param-reassign
-          });
-
-          resolve({
-            root: rootDefinition,
-            submodules: submodulesDefinition,
-          });
-        } catch (e) {
-          reject(e);
-        } finally {
-          cleanupCallback();
-        }
-      });
-  });
-});
-
 module.exports = {
   makeUrl,
-  parseHcl,
 };
diff --git a/lib/util.spec.js b/lib/util.spec.js
index fb3d57a..92cd87a 100644
--- a/lib/util.spec.js
+++ b/lib/util.spec.js
@@ -1,11 +1,10 @@
-const { expect } = require('chai');
-const { promisify } = require('util');
-const fs = require('fs');
-const path = require('path');
+const {
+  expect,
+} = require('chai');
 
-const { makeUrl, parseHcl } = require('./util');
-
-const readFile = promisify(fs.readFile);
+const {
+  makeUrl,
+} = require('./util');
 
 describe('util\'s', () => {
   describe('makeUrl()', () => {
@@ -17,7 +16,10 @@ describe('util\'s', () => {
         },
       };
 
-      const result = makeUrl(req, { offset: 20, limit: 10 });
+      const result = makeUrl(req, {
+        offset: 20,
+        limit: 10,
+      });
       expect(result).to.equal('/v1/modules/hashicorp/consul?offset=20&limit=10');
     });
 
@@ -33,22 +35,4 @@ describe('util\'s', () => {
       expect(result).to.equal('/v1/modules/hashicorp/consul');
     });
   });
-
-  describe('parseHcl()', () => {
-    let tarball;
-
-    before(async () => {
-      const tarballPath = path.join(__dirname, '../test/fixture/complex.tar.gz');
-      tarball = await readFile(tarballPath);
-    });
-
-    it('should make JSON from HCL in a compressed module file ', async () => {
-      const result = await parseHcl('citizen', tarball);
-
-      expect(result).to.have.property('root');
-      expect(result.root).to.have.property('name').to.equal('citizen');
-      expect(result).to.have.property('submodules').to.be.an.instanceof(Array);
-      expect(result.submodules).to.have.lengthOf(3);
-    });
-  });
 });
diff --git a/package-lock.json b/package-lock.json
index 3ce4130..0c55dbc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "citizen",
-  "version": "0.3.3",
+  "version": "0.4.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -83,6 +83,12 @@
         "any-observable": "^0.3.0"
       }
     },
+    "@types/caseless": {
+      "version": "0.12.2",
+      "resolved": "https://registry.npmjs.org/@types/caseless/-/caseless-0.12.2.tgz",
+      "integrity": "sha512-6ckxMjBBD8URvjB6J3NcnuAn5Pkl7t3TizAg+xdlzzQGSPSmBcXf8KoIH0ua/i+tio+ZRUHEXp0HEmvaR4kt0w==",
+      "dev": true
+    },
     "@types/events": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/@types/events/-/events-3.0.0.tgz",
@@ -108,6 +114,37 @@
       "resolved": "https://registry.npmjs.org/@types/node/-/node-8.10.44.tgz",
       "integrity": "sha512-HY3SK7egERHGUfY8p6ztXIEQWcIPHouYhCGcLAPQin7gE2G/fALFz+epnMwcxKUS6aKqTVoAFdi+t1llQd3xcw=="
     },
+    "@types/request": {
+      "version": "2.48.2",
+      "resolved": "https://registry.npmjs.org/@types/request/-/request-2.48.2.tgz",
+      "integrity": "sha512-gP+PSFXAXMrd5PcD7SqHeUjdGshAI8vKQ3+AvpQr3ht9iQea+59LOKvKITcQI+Lg+1EIkDP6AFSBUJPWG8GDyA==",
+      "dev": true,
+      "requires": {
+        "@types/caseless": "*",
+        "@types/node": "*",
+        "@types/tough-cookie": "*",
+        "form-data": "^2.5.0"
+      },
+      "dependencies": {
+        "form-data": {
+          "version": "2.5.0",
+          "resolved": "https://registry.npmjs.org/form-data/-/form-data-2.5.0.tgz",
+          "integrity": "sha512-WXieX3G/8side6VIqx44ablyULoGruSde5PNTxoUyo5CeyAMX6nVWUd0rgist/EuX655cjhUhTo1Fo3tRYqbcA==",
+          "dev": true,
+          "requires": {
+            "asynckit": "^0.4.0",
+            "combined-stream": "^1.0.6",
+            "mime-types": "^2.1.12"
+          }
+        }
+      }
+    },
+    "@types/tough-cookie": {
+      "version": "2.3.5",
+      "resolved": "https://registry.npmjs.org/@types/tough-cookie/-/tough-cookie-2.3.5.tgz",
+      "integrity": "sha512-SCcK7mvGi3+ZNz833RRjFIxrn4gI1PPR3NtuIS+6vMkvmsGjosqTJwRt5bAEFLRz+wtJMWv8+uOnZf2hi2QXTg==",
+      "dev": true
+    },
     "abbrev": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz",
@@ -3010,14 +3047,6 @@
         }
       }
     },
-    "gopher-hcl": {
-      "version": "0.1.0",
-      "resolved": "https://registry.npmjs.org/gopher-hcl/-/gopher-hcl-0.1.0.tgz",
-      "integrity": "sha1-BYKgIiku4Ka6msYW+SRbXcL2MU8=",
-      "requires": {
-        "mixin-deep": "^1.2.0"
-      }
-    },
     "got": {
       "version": "6.7.1",
       "resolved": "http://registry.npmjs.org/got/-/got-6.7.1.tgz",
@@ -4571,16 +4600,25 @@
       "integrity": "sha1-KzJxhOiZIQEXeyhWP7XnECrNDKk="
     },
     "ngrok": {
-      "version": "3.1.1",
-      "resolved": "https://registry.npmjs.org/ngrok/-/ngrok-3.1.1.tgz",
-      "integrity": "sha512-dCW/Ni12GRBL7XIyiFmilKOfCW7UVFf65I/HpE8FC5rXGJwdhIYLc9Qr05GRb6hNs6fZGwyLpcDLnDhUSgZasQ==",
+      "version": "3.2.5",
+      "resolved": "https://registry.npmjs.org/ngrok/-/ngrok-3.2.5.tgz",
+      "integrity": "sha512-FWWQJSg8A1L6prZmT53onZMiFiaY+CfDgS9YStKjbE3qf2WDmRdi6kNBFvQKD2ARSv/te+rqeizAOGSUH5X56w==",
       "dev": true,
       "requires": {
-        "@types/node": "^8.10.30",
+        "@types/node": "^8.10.50",
+        "@types/request": "^2.48.2",
         "decompress-zip": "^0.3.2",
         "request": "^2.88.0",
-        "request-promise-native": "^1.0.5",
+        "request-promise-native": "^1.0.7",
         "uuid": "^3.3.2"
+      },
+      "dependencies": {
+        "@types/node": {
+          "version": "8.10.52",
+          "resolved": "https://registry.npmjs.org/@types/node/-/node-8.10.52.tgz",
+          "integrity": "sha512-2RbW7WXeLex6RI+kQSxq6Ym0GiVcODeQ4Km7MnnTX5BHdOGQnqVa+s6AUmAW+OFYAJ8wv9QxvNZXm7/kBdGTVw==",
+          "dev": true
+        }
       }
     },
     "nice-try": {
@@ -4900,7 +4938,8 @@
     "os-tmpdir": {
       "version": "1.0.2",
       "resolved": "http://registry.npmjs.org/os-tmpdir/-/os-tmpdir-1.0.2.tgz",
-      "integrity": "sha1-u+Z0BseaqFxc/sdm/lc0VV36EnQ="
+      "integrity": "sha1-u+Z0BseaqFxc/sdm/lc0VV36EnQ=",
+      "dev": true
     },
     "p-defer": {
       "version": "1.0.0",
@@ -5451,7 +5490,7 @@
     },
     "readable-stream": {
       "version": "1.1.14",
-      "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-1.1.14.tgz",
+      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-1.1.14.tgz",
       "integrity": "sha1-fPTFTvZI44EwhMY23SB54WbAgdk=",
       "dev": true,
       "requires": {
@@ -6186,7 +6225,7 @@
     },
     "string_decoder": {
       "version": "0.10.31",
-      "resolved": "http://registry.npmjs.org/string_decoder/-/string_decoder-0.10.31.tgz",
+      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-0.10.31.tgz",
       "integrity": "sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ=",
       "dev": true
     },
@@ -6424,6 +6463,7 @@
       "version": "0.0.33",
       "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.0.33.tgz",
       "integrity": "sha512-jRCJlojKnZ3addtTOjdIqoRuPEKBvNXcGYqzO6zWZX8KfKEpnGY5jfggJQ3EjKuu8D4bJRr0y+cYJFmYbImXGw==",
+      "dev": true,
       "requires": {
         "os-tmpdir": "~1.0.2"
       }
diff --git a/package.json b/package.json
index 9c20b26..84da5c8 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "citizen",
-  "version": "0.3.3",
+  "version": "0.4.0",
   "private": true,
   "bin": {
     "citizen": "./bin/citizen"
@@ -12,7 +12,7 @@
     "test": "mocha --exit --recursive -t 20000 $(find . -name '*.spec.js' -not -path './node_modules/*')",
     "clean": "rimraf dist",
     "prebuild": "npm run clean",
-    "build": "pkg . --out-path dist --targets node10-linux-x64,node10-macos-x64,node10-win-x64"
+    "build": "pkg . --out-path dist --targets node10-alpine-x64,node10-linux-x64,node10-macos-x64,node10-win-x64"
   },
   "dependencies": {
     "aws-sdk": "^2.425.0",
@@ -23,7 +23,6 @@
     "express": "^4.16.4",
     "glob-gitignore": "^1.0.14",
     "globby": "^9.1.0",
-    "gopher-hcl": "^0.1.0",
     "helmet": "^3.16.0",
     "jten": "^0.2.0",
     "listr": "^0.14.2",
@@ -39,7 +38,6 @@
     "rimraf": "^2.6.3",
     "semver": "^5.6.0",
     "tar": "^4.4.6",
-    "tmp": "0.0.33",
     "uuid": "^3.3.2"
   },
   "devDependencies": {
@@ -50,7 +48,7 @@
     "eslint-plugin-mocha": "^5.3.0",
     "get-port": "^4.2.0",
     "mocha": "^6.0.2",
-    "ngrok": "^3.1.1",
+    "ngrok": "^3.2.5",
     "nock": "^10.0.6",
     "nodemon": "^1.18.10",
     "pkg": "^4.3.7",
diff --git a/routes/download.js b/routes/download.js
index bef6611..86b107b 100644
--- a/routes/download.js
+++ b/routes/download.js
@@ -1,13 +1,23 @@
-const { Router } = require('express');
+const {
+  Router,
+} = require('express');
 
-const { findOne, getLatestVersion, increaseDownload } = require('../lib/store');
-const { getModule } = require('../lib/storage');
+const {
+  findOne,
+  getLatestVersion,
+  increaseDownload,
+} = require('../lib/store');
+const {
+  getModule,
+} = require('../lib/storage');
 
 const router = Router();
 
 // https://www.terraform.io/docs/registry/api.html#download-source-code-for-a-specific-module-version
 router.get('/:namespace/:name/:provider/:version/download', async (req, res, next) => {
-  const options = { ...req.params };
+  const options = {
+    ...req.params,
+  };
 
   const module = await findOne(options);
 
@@ -21,7 +31,9 @@ router.get('/:namespace/:name/:provider/:version/download', async (req, res, nex
 
 // https://www.terraform.io/docs/registry/api.html#download-the-latest-version-of-a-module
 router.get('/:namespace/:name/:provider/download', async (req, res, next) => {
-  const options = { ...req.params };
+  const options = {
+    ...req.params,
+  };
 
   const module = await getLatestVersion(options);
 
@@ -35,7 +47,9 @@ router.get('/:namespace/:name/:provider/download', async (req, res, next) => {
 
 // download a module
 router.get('/tarball/:namespace/:name/:provider/:version/*.tar.gz', async (req, res, next) => {
-  const options = { ...req.params };
+  const options = {
+    ...req.params,
+  };
 
   const module = await findOne(options);
 
diff --git a/routes/download.spec.js b/routes/download.spec.js
index 232065f..8cf5341 100644
--- a/routes/download.spec.js
+++ b/routes/download.spec.js
@@ -1,18 +1,31 @@
 const request = require('supertest');
-const { expect } = require('chai');
+const {
+  expect,
+} = require('chai');
 const fs = require('fs');
 const path = require('path');
-const { promisify } = require('util');
+const {
+  promisify,
+} = require('util');
 const rimraf = promisify(require('rimraf'));
 
 const app = require('../app');
-const { deleteDbAll } = require('../test/helper');
-const { db, save } = require('../lib/store');
+const {
+  deleteDbAll,
+} = require('../test/helper');
+const {
+  db,
+  save,
+} = require('../lib/store');
 
 describe('GET /v1/modules/:namespace/:name/:provider/:version/download', () => {
   before(async () => {
     await save({
-      namespace: 'download', name: 'source', provider: 'aws', version: '1.2.0', location: 'download/source/aws/1.2.0/module.tar.gz',
+      namespace: 'download',
+      name: 'source',
+      provider: 'aws',
+      version: '1.2.0',
+      location: 'download/source/aws/1.2.0/module.tar.gz',
     });
   });
 
@@ -40,10 +53,18 @@ describe('GET /v1/modules/:namespace/:name/:provider/:version/download', () => {
 describe('GET /v1/modules/:namespace/:name/:provider/download', () => {
   before(async () => {
     await save({
-      namespace: 'download', name: 'source', provider: 'aws', version: '1.2.0', location: 'download/source/aws/1.2.0/module.tar.gz',
+      namespace: 'download',
+      name: 'source',
+      provider: 'aws',
+      version: '1.2.0',
+      location: 'download/source/aws/1.2.0/module.tar.gz',
     });
     await save({
-      namespace: 'download', name: 'source', provider: 'aws', version: '1.3.0', location: 'download/source/aws/1.3.0/module.tar.gz',
+      namespace: 'download',
+      name: 'source',
+      provider: 'aws',
+      version: '1.3.0',
+      location: 'download/source/aws/1.3.0/module.tar.gz',
     });
   });
 
@@ -101,7 +122,9 @@ describe('GET /v1/modules/tarball/:namespace/:name/:provider/*.tar.gz', () => {
           provider: 'aws',
           version: `${version}`,
         }, (err, docs) => {
-          if (err) { return done(err); }
+          if (err) {
+            return done(err);
+          }
           expect(docs[0]).to.have.property('downloads').to.equal(1);
           return done();
         });
diff --git a/routes/index.js b/routes/index.js
index ffa1d7f..56f52d5 100644
--- a/routes/index.js
+++ b/routes/index.js
@@ -1,4 +1,6 @@
-const { Router } = require('express');
+const {
+  Router,
+} = require('express');
 
 const router = Router();
 
diff --git a/routes/list.js b/routes/list.js
index 3d38a11..d8d1f2b 100644
--- a/routes/list.js
+++ b/routes/list.js
@@ -1,8 +1,15 @@
-const { Router } = require('express');
+const {
+  Router,
+} = require('express');
 const _ = require('lodash');
 
-const { findAll, getVersions } = require('../lib/store');
-const { makeUrl } = require('../lib/util');
+const {
+  findAll,
+  getVersions,
+} = require('../lib/store');
+const {
+  makeUrl,
+} = require('../lib/util');
 
 const router = Router();
 
@@ -42,7 +49,9 @@ router.get('/search', async (req, res) => {
 
 // https://www.terraform.io/docs/registry/api.html#list-modules
 router.get(['/', '/:namespace'], async (req, res) => {
-  const options = { ...req.query };
+  const options = {
+    ...req.query,
+  };
   if (req.params.namespace) {
     options.namespace = req.params.namespace;
   }
@@ -59,7 +68,9 @@ router.get(['/', '/:namespace'], async (req, res) => {
 
 // https://www.terraform.io/docs/registry/api.html#list-available-versions-for-a-specific-module
 router.get('/:namespace/:name/:provider/versions', async (req, res, next) => {
-  const options = { ...req.params };
+  const options = {
+    ...req.params,
+  };
 
   try {
     const versions = await getVersions(options);
@@ -106,7 +117,10 @@ router.get('/:namespace/:name', async (req, res) => {
       limit,
       currentOffset: offset,
       nextOffset: hasNext ? nextOffset : null,
-      nextUrl: hasNext ? makeUrl(req, { limit, offset: nextOffset }) : null,
+      nextUrl: hasNext ? makeUrl(req, {
+        limit,
+        offset: nextOffset,
+      }) : null,
     },
     modules: pagedModules,
   });
diff --git a/routes/list.spec.js b/routes/list.spec.js
index b2788cd..8ca3493 100644
--- a/routes/list.spec.js
+++ b/routes/list.spec.js
@@ -1,23 +1,46 @@
 const request = require('supertest');
-const { expect } = require('chai');
+const {
+  expect,
+} = require('chai');
 
 const app = require('../app');
-const { db, save } = require('../lib/store');
-const { deleteDbAll } = require('../test/helper');
+const {
+  db,
+  save,
+} = require('../lib/store');
+const {
+  deleteDbAll,
+} = require('../test/helper');
 
 describe('GET /v1/modules', () => {
   before(async () => {
     await save({
-      namespace: 'GCP', name: 'lb-http', provider: 'google', version: '1.0.4', owner: '',
+      namespace: 'GCP',
+      name: 'lb-http',
+      provider: 'google',
+      version: '1.0.4',
+      owner: '',
     });
     await save({
-      namespace: 'aws-modules', name: 'vpc', provider: 'aws', version: '1.2.1', owner: '',
+      namespace: 'aws-modules',
+      name: 'vpc',
+      provider: 'aws',
+      version: '1.2.1',
+      owner: '',
     });
     await save({
-      namespace: 'aws-modules', name: 'vpc', provider: 'aws', version: '1.5.0', owner: '',
+      namespace: 'aws-modules',
+      name: 'vpc',
+      provider: 'aws',
+      version: '1.5.0',
+      owner: '',
     });
     await save({
-      namespace: 'aws-modules', name: 'vpc', provider: 'aws', version: '1.5.1', owner: '',
+      namespace: 'aws-modules',
+      name: 'vpc',
+      provider: 'aws',
+      version: '1.5.1',
+      owner: '',
     });
   });
 
@@ -71,16 +94,32 @@ describe('GET /v1/modules', () => {
 describe('GET /v1/modules/:namespace', () => {
   before(async () => {
     await save({
-      namespace: 'GCP', name: 'lb-http', provider: 'google', version: '1.0.4', owner: '',
+      namespace: 'GCP',
+      name: 'lb-http',
+      provider: 'google',
+      version: '1.0.4',
+      owner: '',
     });
     await save({
-      namespace: 'aws-modules', name: 'vpc', provider: 'microsoft', version: '1.2.1', owner: '',
+      namespace: 'aws-modules',
+      name: 'vpc',
+      provider: 'microsoft',
+      version: '1.2.1',
+      owner: '',
     });
     await save({
-      namespace: 'aws-modules', name: 'vpc', provider: 'microsoft', version: '1.5.0', owner: '',
+      namespace: 'aws-modules',
+      name: 'vpc',
+      provider: 'microsoft',
+      version: '1.5.0',
+      owner: '',
     });
     await save({
-      namespace: 'aws-modules', name: 'vpc', provider: 'aws', version: '1.5.1', owner: '',
+      namespace: 'aws-modules',
+      name: 'vpc',
+      provider: 'aws',
+      version: '1.5.1',
+      owner: '',
     });
   });
 
@@ -112,16 +151,32 @@ describe('GET /v1/modules/:namespace', () => {
 describe('GET /v1/modules/search', () => {
   before(async () => {
     await save({
-      namespace: 'GCP', name: 'lb-http', provider: 'google', version: '1.0.4', owner: '',
+      namespace: 'GCP',
+      name: 'lb-http',
+      provider: 'google',
+      version: '1.0.4',
+      owner: '',
     });
     await save({
-      namespace: 'aws-modules', name: 'vpc', provider: 'microsoft', version: '1.2.1', owner: '',
+      namespace: 'aws-modules',
+      name: 'vpc',
+      provider: 'microsoft',
+      version: '1.2.1',
+      owner: '',
     });
     await save({
-      namespace: 'aws-modules', name: 'vpc', provider: 'microsoft', version: '1.5.0', owner: '',
+      namespace: 'aws-modules',
+      name: 'vpc',
+      provider: 'microsoft',
+      version: '1.5.0',
+      owner: '',
     });
     await save({
-      namespace: 'aws-modules', name: 'vpc', provider: 'aws', version: '1.5.1', owner: '',
+      namespace: 'aws-modules',
+      name: 'vpc',
+      provider: 'aws',
+      version: '1.5.1',
+      owner: '',
     });
   });
 
@@ -161,16 +216,64 @@ describe('GET /v1/modules/search', () => {
 describe('GET /v1/modules/:namespace/:name/:provider/versions', () => {
   before(async () => {
     await save({
-      namespace: 'GCP', name: 'lb-http', provider: 'google', version: '1.0.4', owner: '', definition: { root: { name: 'lb-http' }, submodules: [{ name: 'example' }] },
+      namespace: 'GCP',
+      name: 'lb-http',
+      provider: 'google',
+      version: '1.0.4',
+      owner: '',
+      definition: {
+        root: {
+          name: 'lb-http',
+        },
+        submodules: [{
+          name: 'example',
+        }],
+      },
     });
     await save({
-      namespace: 'aws-modules', name: 'vpc', provider: 'aws', version: '1.2.1', owner: '', definition: { root: { name: 'vpc' }, submodules: [{ name: 'example' }] },
+      namespace: 'aws-modules',
+      name: 'vpc',
+      provider: 'aws',
+      version: '1.2.1',
+      owner: '',
+      definition: {
+        root: {
+          name: 'vpc',
+        },
+        submodules: [{
+          name: 'example',
+        }],
+      },
     });
     await save({
-      namespace: 'aws-modules', name: 'vpc', provider: 'aws', version: '1.5.0', owner: '', definition: { root: { name: 'vpc' }, submodules: [{ name: 'example' }] },
+      namespace: 'aws-modules',
+      name: 'vpc',
+      provider: 'aws',
+      version: '1.5.0',
+      owner: '',
+      definition: {
+        root: {
+          name: 'vpc',
+        },
+        submodules: [{
+          name: 'example',
+        }],
+      },
     });
     await save({
-      namespace: 'aws-modules', name: 'vpc', provider: 'aws', version: '1.5.1', owner: '', definition: { root: { name: 'vpc' }, submodules: [{ name: 'example' }] },
+      namespace: 'aws-modules',
+      name: 'vpc',
+      provider: 'aws',
+      version: '1.5.1',
+      owner: '',
+      definition: {
+        root: {
+          name: 'vpc',
+        },
+        submodules: [{
+          name: 'example',
+        }],
+      },
     });
   });
 
@@ -207,19 +310,39 @@ describe('GET /v1/modules/:namespace/:name/:provider/versions', () => {
 describe('GET /v1/modules/:namespace/:name', () => {
   before(async () => {
     await save({
-      namespace: 'hashicorp', name: 'consul', provider: 'azurerm', version: '0.1.0', owner: '',
+      namespace: 'hashicorp',
+      name: 'consul',
+      provider: 'azurerm',
+      version: '0.1.0',
+      owner: '',
     });
     await save({
-      namespace: 'hashicorp', name: 'consul', provider: 'azurerm', version: '0.2.0', owner: '',
+      namespace: 'hashicorp',
+      name: 'consul',
+      provider: 'azurerm',
+      version: '0.2.0',
+      owner: '',
     });
     await save({
-      namespace: 'hashicorp', name: 'consul', provider: 'aws', version: '1.1.1', owner: '',
+      namespace: 'hashicorp',
+      name: 'consul',
+      provider: 'aws',
+      version: '1.1.1',
+      owner: '',
     });
     await save({
-      namespace: 'hashicorp', name: 'consul', provider: 'aws', version: '1.1.2', owner: '',
+      namespace: 'hashicorp',
+      name: 'consul',
+      provider: 'aws',
+      version: '1.1.2',
+      owner: '',
     });
     await save({
-      namespace: 'hashicorp', name: 'consul', provider: 'google', version: '1.1.2', owner: '',
+      namespace: 'hashicorp',
+      name: 'consul',
+      provider: 'google',
+      version: '1.1.2',
+      owner: '',
     });
   });
 
diff --git a/routes/modules.js b/routes/modules.js
index f129280..72e3ce1 100644
--- a/routes/modules.js
+++ b/routes/modules.js
@@ -1,10 +1,18 @@
-const { Router } = require('express');
+const {
+  Router,
+} = require('express');
 const multiparty = require('multiparty');
 
 const logger = require('../lib/logger');
-const { parseHcl } = require('../lib/util');
-const { saveModule, hasModule } = require('../lib/storage');
-const { save, getLatestVersion, findOne } = require('../lib/store');
+const {
+  saveModule,
+  hasModule,
+} = require('../lib/storage');
+const {
+  save,
+  getLatestVersion,
+  findOne,
+} = require('../lib/store');
 
 const router = Router();
 
@@ -49,7 +57,9 @@ router.post('/:namespace/:name/:provider/:version', (req, res, next) => {
         owner = Buffer.concat(ownerBuf).toString();
       }
       if (part.filename) {
-        ({ filename } = part);
+        ({
+          filename,
+        } = part);
         tarball = Buffer.concat(file);
       }
     });
@@ -66,7 +76,6 @@ router.post('/:namespace/:name/:provider/:version', (req, res, next) => {
       }
 
       const fileResult = await saveModule(`${destPath}/${filename}`, tarball);
-      const definition = await parseHcl(name, tarball);
       const metaResult = await save({
         namespace,
         name,
@@ -74,7 +83,6 @@ router.post('/:namespace/:name/:provider/:version', (req, res, next) => {
         version,
         owner,
         location: `${destPath}/${filename}`,
-        definition,
       });
 
       if (fileResult && metaResult) {
@@ -101,7 +109,9 @@ router.post('/:namespace/:name/:provider/:version', (req, res, next) => {
 
 // https://www.terraform.io/docs/registry/api.html#get-a-specific-module
 router.get('/:namespace/:name/:provider/:version', async (req, res, next) => {
-  const options = { ...req.params };
+  const options = {
+    ...req.params,
+  };
 
   const module = await findOne(options);
 
@@ -114,7 +124,9 @@ router.get('/:namespace/:name/:provider/:version', async (req, res, next) => {
 
 // https://www.terraform.io/docs/registry/api.html#latest-version-for-a-specific-module-provider
 router.get('/:namespace/:name/:provider', async (req, res, next) => {
-  const options = { ...req.params };
+  const options = {
+    ...req.params,
+  };
 
   const module = await getLatestVersion(options);
 
diff --git a/routes/modules.spec.js b/routes/modules.spec.js
index c5189b4..2f22890 100644
--- a/routes/modules.spec.js
+++ b/routes/modules.spec.js
@@ -1,14 +1,23 @@
 const request = require('supertest');
-const { expect } = require('chai');
-const { promisify } = require('util');
+const {
+  expect,
+} = require('chai');
+const {
+  promisify,
+} = require('util');
 const rimraf = promisify(require('rimraf'));
 const fs = require('fs');
 const path = require('path');
 const mkdirp = promisify(require('mkdirp'));
 
 const app = require('../app');
-const { deleteDbAll } = require('../test/helper');
-const { db, save } = require('../lib/store');
+const {
+  deleteDbAll,
+} = require('../test/helper');
+const {
+  db,
+  save,
+} = require('../lib/store');
 
 const writeFile = promisify(fs.writeFile);
 const readFile = promisify(fs.readFile);
@@ -64,36 +73,16 @@ describe('POST /v1/modules/:namespace/:name/:provider/:version', () => {
       expect(res.body).to.have.property('modules').to.be.an('array');
       expect(res.body.modules[0]).to.have.property('id').to.equal(modulePath);
     }));
-
-  it('should register module information', (done) => {
-    request(app)
-      .post(`/v1/modules/${modulePath}`)
-      .attach('module', 'test/fixture/complex.tar.gz')
-      .expect('Content-Type', /application\/json/)
-      .expect(201)
-      .then((res) => {
-        db.find({
-          namespace: res.body.modules[0].namespace,
-          name: res.body.modules[0].name,
-          provider: res.body.modules[0].provider,
-          version: res.body.modules[0].version,
-        }, (err, docs) => {
-          if (err) { return done(err); }
-
-          expect(docs[0]).to.have.property('root');
-          expect(docs[0].root).to.have.property('name').to.equal('consul');
-          expect(docs[0]).to.have.property('submodules').to.be.an.instanceof(Array);
-          expect(docs[0].submodules).to.have.lengthOf(3);
-          return done();
-        });
-      });
-  });
 });
 
 describe('GET /v1/modules/:namespace/:name/:provider/:version', () => {
   before(async () => {
     await save({
-      namespace: 'router', name: 'specific', provider: 'aws', version: '1.1.2', owner: '',
+      namespace: 'router',
+      name: 'specific',
+      provider: 'aws',
+      version: '1.1.2',
+      owner: '',
     });
   });
 
@@ -119,10 +108,34 @@ describe('GET /v1/modules/:namespace/:name/:provider/:version', () => {
 describe('GET /v1/modules/:namespace/:name/:provider', () => {
   before(async () => {
     await save({
-      namespace: 'router', name: 'latest', provider: 'aws', version: '1.1.1', owner: '', definition: { root: { name: 'latest' }, submodules: [{ name: 'example' }] },
+      namespace: 'router',
+      name: 'latest',
+      provider: 'aws',
+      version: '1.1.1',
+      owner: '',
+      definition: {
+        root: {
+          name: 'latest',
+        },
+        submodules: [{
+          name: 'example',
+        }],
+      },
     });
     await save({
-      namespace: 'router', name: 'latest', provider: 'aws', version: '1.1.2', owner: '', definition: { root: { name: 'latest' }, submodules: [{ name: 'example' }] },
+      namespace: 'router',
+      name: 'latest',
+      provider: 'aws',
+      version: '1.1.2',
+      owner: '',
+      definition: {
+        root: {
+          name: 'latest',
+        },
+        submodules: [{
+          name: 'example',
+        }],
+      },
     });
   });
 
diff --git a/routes/service-discovery.js b/routes/service-discovery.js
index b09944a..51ddb0a 100644
--- a/routes/service-discovery.js
+++ b/routes/service-discovery.js
@@ -1,4 +1,6 @@
-const { Router } = require('express');
+const {
+  Router,
+} = require('express');
 
 const router = Router();
 
diff --git a/storages/file.js b/storages/file.js
index c5a1c9a..c8e224f 100644
--- a/storages/file.js
+++ b/storages/file.js
@@ -1,6 +1,11 @@
 const fs = require('fs');
-const { join, parse } = require('path');
-const { promisify } = require('util');
+const {
+  join,
+  parse,
+} = require('path');
+const {
+  promisify,
+} = require('util');
 const debug = require('debug')('citizen:server');
 const mkdirp = promisify(require('mkdirp'));
 
@@ -11,8 +16,12 @@ const access = promisify(fs.access);
 module.exports = {
   type: () => 'file',
   saveModule: async (path, tarball) => {
-    if (!path) { throw new Error('path is required.'); }
-    if (!tarball) { throw new Error('tarball is required.'); }
+    if (!path) {
+      throw new Error('path is required.');
+    }
+    if (!tarball) {
+      throw new Error('tarball is required.');
+    }
 
     const pathToStore = join(process.env.CITIZEN_STORAGE_PATH, path);
     debug(`save the module into ${pathToStore}.`);
diff --git a/storages/file.spec.js b/storages/file.spec.js
index 45f4f1a..7fc2cf3 100644
--- a/storages/file.spec.js
+++ b/storages/file.spec.js
@@ -1,11 +1,19 @@
 const path = require('path');
 const fs = require('fs');
-const { promisify } = require('util');
-const { expect } = require('chai');
+const {
+  promisify,
+} = require('util');
+const {
+  expect,
+} = require('chai');
 const mkdirp = promisify(require('mkdirp'));
 const rimraf = promisify(require('rimraf'));
 
-const { saveModule, hasModule, getModule } = require('./file');
+const {
+  saveModule,
+  hasModule,
+  getModule,
+} = require('./file');
 
 const writeFile = promisify(fs.writeFile);
 const readFile = promisify(fs.readFile);
diff --git a/storages/s3.js b/storages/s3.js
index 9cb29cf..ebcbfa2 100644
--- a/storages/s3.js
+++ b/storages/s3.js
@@ -1,8 +1,12 @@
 const AWS = require('aws-sdk');
-const { promisify } = require('util');
+const {
+  promisify,
+} = require('util');
 const debug = require('debug')('citizen:server');
 
-const s3 = new AWS.S3({ apiVersion: '2006-03-01' });
+const s3 = new AWS.S3({
+  apiVersion: '2006-03-01',
+});
 
 const S3_BUCKET = process.env.CITIZEN_AWS_S3_BUCKET;
 if (process.env.CITIZEN_STORAGE === 's3' && !S3_BUCKET) {
@@ -19,8 +23,12 @@ module.exports = {
   saveModule: async (path, tarball) => {
     debug(`save the module into ${path}.`);
 
-    if (!path) { throw new Error('path is required.'); }
-    if (!tarball) { throw new Error('tarball is required.'); }
+    if (!path) {
+      throw new Error('path is required.');
+    }
+    if (!tarball) {
+      throw new Error('tarball is required.');
+    }
 
     const params = {
       Bucket: S3_BUCKET,
diff --git a/storages/s3.spec.js b/storages/s3.spec.js
index 364a2af..9b7c959 100644
--- a/storages/s3.spec.js
+++ b/storages/s3.spec.js
@@ -1,13 +1,26 @@
 /* eslint-disable no-unused-expressions */
 const path = require('path');
 const fs = require('fs');
-const { expect } = require('chai');
-const { promisify } = require('util');
+const {
+  expect,
+} = require('chai');
+const {
+  promisify,
+} = require('util');
 const AWS = require('aws-sdk');
 
-const s3 = new AWS.S3({ apiVersion: '2006-03-01' });
-const { enableMock, clearMock } = require('../test/helper');
-const { saveModule, hasModule, getModule } = require('./s3');
+const s3 = new AWS.S3({
+  apiVersion: '2006-03-01',
+});
+const {
+  enableMock,
+  clearMock,
+} = require('../test/helper');
+const {
+  saveModule,
+  hasModule,
+  getModule,
+} = require('./s3');
 
 const readFile = promisify(fs.readFile);
 s3.save = promisify(s3.putObject);
@@ -19,7 +32,9 @@ describe('s3\'s', async () => {
   let moduleBuf;
 
   before(async () => {
-    enableMock({ modulePath });
+    enableMock({
+      modulePath,
+    });
     moduleBuf = await readFile(tarballPath);
   });
 
diff --git a/stores/mongodb.js b/stores/mongodb.js
index b4ab3b0..88e7a7d 100644
--- a/stores/mongodb.js
+++ b/stores/mongodb.js
@@ -3,18 +3,28 @@ const mongoose = require('mongoose');
 
 const dbUri = process.env.CITIZEN_MONGO_DB_URI || 'mongodb://localhost:27017/citizen';
 
-mongoose.connect(dbUri, { useNewUrlParser: true });
+mongoose.connect(dbUri, {
+  useNewUrlParser: true,
+});
 
 const Module = mongoose.model('Module', {
   namespace: String,
   name: String,
   provider: String,
   version: String,
-  owner: { type: String, default: '' },
+  owner: {
+    type: String,
+    default: '',
+  },
   location: String,
-  definition: mongoose.Schema.Types.Mixed,
-  downloads: { type: Number, default: 0 },
-  published_at: { type: Date, default: Date.now },
+  downloads: {
+    type: Number,
+    default: 0,
+  },
+  published_at: {
+    type: Date,
+    default: Date.now,
+  },
 });
 
 const db = Module;
@@ -27,7 +37,6 @@ const save = data => new Promise((resolve, reject) => {
     version,
     owner,
     location,
-    definition = {},
   } = data;
 
   const module = new Module({
@@ -37,7 +46,6 @@ const save = data => new Promise((resolve, reject) => {
     provider,
     version,
     location,
-    ...definition,
   });
 
   module.save()
@@ -73,10 +81,18 @@ const findAll = ({
         nextOffset: +offset + +limit,
         prevOffset: +offset - +limit,
       };
-      if (meta.prevOffset < 0) { meta.prevOffset = null; }
-      if (meta.nextOffset >= totalRows) { meta.nextOffset = null; }
-
-      return Module.find(options, null, { sort: '_id', skip: +offset, limit: +limit })
+      if (meta.prevOffset < 0) {
+        meta.prevOffset = null;
+      }
+      if (meta.nextOffset >= totalRows) {
+        meta.nextOffset = null;
+      }
+
+      return Module.find(options, null, {
+        sort: '_id',
+        skip: +offset,
+        limit: +limit,
+      })
         .then((docs) => {
           debug('search result from db: %o', docs);
           return resolve({
@@ -94,9 +110,15 @@ const getVersions = ({
   name,
   provider,
 } = {}) => new Promise((resolve, reject) => {
-  if (!namespace) { reject(new Error('namespace required.')); }
-  if (!name) { reject(new Error('name required.')); }
-  if (!provider) { reject(new Error('provider required.')); }
+  if (!namespace) {
+    reject(new Error('namespace required.'));
+  }
+  if (!name) {
+    reject(new Error('name required.'));
+  }
+  if (!provider) {
+    reject(new Error('provider required.'));
+  }
 
   const options = {
     namespace,
@@ -105,7 +127,9 @@ const getVersions = ({
   };
 
   debug('search versions in db with %o', options);
-  Module.find(options, null, { sort: '_id' })
+  Module.find(options, null, {
+    sort: '_id',
+  })
     .then((docs) => {
       const data = docs.map(d => ({
         version: d.version,
@@ -123,9 +147,15 @@ const getLatestVersion = async ({
   name,
   provider,
 } = {}) => new Promise((resolve, reject) => {
-  if (!namespace) { reject(new Error('namespace required.')); }
-  if (!name) { reject(new Error('name required.')); }
-  if (!provider) { reject(new Error('provider required.')); }
+  if (!namespace) {
+    reject(new Error('namespace required.'));
+  }
+  if (!name) {
+    reject(new Error('name required.'));
+  }
+  if (!provider) {
+    reject(new Error('provider required.'));
+  }
 
   const options = {
     namespace,
@@ -133,7 +163,10 @@ const getLatestVersion = async ({
     provider,
   };
 
-  Module.find(options, null, { sort: '-version', limit: 1 })
+  Module.find(options, null, {
+    sort: '-version',
+    limit: 1,
+  })
     .then((docs) => {
       debug('search latest version result from db: %o', docs);
       return resolve(docs.length > 0 ? docs[0] : null);
@@ -147,10 +180,18 @@ const findOne = async ({
   provider,
   version,
 } = {}) => new Promise((resolve, reject) => {
-  if (!namespace) { reject(new Error('namespace required.')); }
-  if (!name) { reject(new Error('name required.')); }
-  if (!provider) { reject(new Error('provider required.')); }
-  if (!version) { reject(new Error('version required.')); }
+  if (!namespace) {
+    reject(new Error('namespace required.'));
+  }
+  if (!name) {
+    reject(new Error('name required.'));
+  }
+  if (!provider) {
+    reject(new Error('provider required.'));
+  }
+  if (!version) {
+    reject(new Error('version required.'));
+  }
 
   const options = {
     namespace,
@@ -171,10 +212,18 @@ const increaseDownload = async ({
   provider,
   version,
 } = {}) => new Promise((resolve, reject) => {
-  if (!namespace) { reject(new Error('namespace required.')); }
-  if (!name) { reject(new Error('name required.')); }
-  if (!provider) { reject(new Error('provider required.')); }
-  if (!version) { reject(new Error('version required.')); }
+  if (!namespace) {
+    reject(new Error('namespace required.'));
+  }
+  if (!name) {
+    reject(new Error('name required.'));
+  }
+  if (!provider) {
+    reject(new Error('provider required.'));
+  }
+  if (!version) {
+    reject(new Error('version required.'));
+  }
 
   const options = {
     namespace,
@@ -183,7 +232,13 @@ const increaseDownload = async ({
     version,
   };
 
-  Module.findOneAndUpdate(options, { $inc: { downloads: 1 } }, { new: true })
+  Module.findOneAndUpdate(options, {
+    $inc: {
+      downloads: 1,
+    },
+  }, {
+    new: true,
+  })
     .then(doc => resolve(doc))
     .catch(err => reject(err));
 });
diff --git a/stores/mongodb.spec.js b/stores/mongodb.spec.js
index a05af4b..2dec8c2 100644
--- a/stores/mongodb.spec.js
+++ b/stores/mongodb.spec.js
@@ -1,5 +1,7 @@
 /* eslint-disable no-unused-expressions */
-const { expect } = require('chai');
+const {
+  expect,
+} = require('chai');
 
 const {
   db,
@@ -10,7 +12,9 @@ const {
   getLatestVersion,
   increaseDownload,
 } = require('./mongodb');
-const { deleteDbAllMongo } = require('../test/helper');
+const {
+  deleteDbAllMongo,
+} = require('../test/helper');
 
 describe('mongodb store', async () => {
   describe('save()', () => {
@@ -35,16 +39,32 @@ describe('mongodb store', async () => {
   describe('findAll()', () => {
     before(async () => {
       await save({
-        namespace: 'store-GCP', name: 'store-lb-http', provider: 'store-google', version: '1.0.4', owner: '',
+        namespace: 'store-GCP',
+        name: 'store-lb-http',
+        provider: 'store-google',
+        version: '1.0.4',
+        owner: '',
       });
       await save({
-        namespace: 'store-aws-modules', name: 'store-vpc', provider: 'store-aws', version: '1.2.1', owner: '',
+        namespace: 'store-aws-modules',
+        name: 'store-vpc',
+        provider: 'store-aws',
+        version: '1.2.1',
+        owner: '',
       });
       await save({
-        namespace: 'store-aws-modules', name: 'store-vpc', provider: 'store-aws', version: '1.5.0', owner: '',
+        namespace: 'store-aws-modules',
+        name: 'store-vpc',
+        provider: 'store-aws',
+        version: '1.5.0',
+        owner: '',
       });
       await save({
-        namespace: 'store-aws-modules', name: 'store-vpc', provider: 'store-aws', version: '1.5.1', owner: '',
+        namespace: 'store-aws-modules',
+        name: 'store-vpc',
+        provider: 'store-aws',
+        version: '1.5.1',
+        owner: '',
       });
     });
 
@@ -68,14 +88,20 @@ describe('mongodb store', async () => {
     });
 
     it('should support pagination', async () => {
-      const result = await findAll({ offset: 2, limit: 2 });
+      const result = await findAll({
+        offset: 2,
+        limit: 2,
+      });
       expect(result).to.have.property('modules').to.have.lengthOf(2);
       expect(result.modules[0]).to.have.property('namespace').to.equal('store-aws-modules');
       expect(result.modules[0]).to.have.property('version').to.equal('1.5.0');
     });
 
     it('should return pagination information', async () => {
-      const result = await findAll({ offset: 2, limit: 1 });
+      const result = await findAll({
+        offset: 2,
+        limit: 1,
+      });
 
       expect(result).to.have.property('meta');
       expect(result.meta).to.have.property('limit').to.equal(1);
@@ -85,7 +111,10 @@ describe('mongodb store', async () => {
     });
 
     it('should prevOffset pagination information', async () => {
-      const result = await findAll({ offset: 0, limit: 2 });
+      const result = await findAll({
+        offset: 0,
+        limit: 2,
+      });
 
       expect(result.meta).to.have.property('limit').to.equal(2);
       expect(result.meta).to.have.property('currentOffset').to.equal(0);
@@ -94,7 +123,10 @@ describe('mongodb store', async () => {
     });
 
     it('should return pagination information', async () => {
-      const result = await findAll({ offset: 2, limit: 2 });
+      const result = await findAll({
+        offset: 2,
+        limit: 2,
+      });
 
       expect(result.meta).to.have.property('limit').to.equal(2);
       expect(result.meta).to.have.property('currentOffset').to.equal(2);
@@ -114,13 +146,25 @@ describe('mongodb store', async () => {
   describe('getVersions()', () => {
     before(async () => {
       await save({
-        namespace: 'aws-modules', name: 'vpc', provider: 'aws', version: '1.2.1', owner: '',
+        namespace: 'aws-modules',
+        name: 'vpc',
+        provider: 'aws',
+        version: '1.2.1',
+        owner: '',
       });
       await save({
-        namespace: 'aws-modules', name: 'vpc', provider: 'aws', version: '1.5.0', owner: '',
+        namespace: 'aws-modules',
+        name: 'vpc',
+        provider: 'aws',
+        version: '1.5.0',
+        owner: '',
       });
       await save({
-        namespace: 'aws-modules', name: 'vpc', provider: 'aws', version: '1.5.1', owner: '',
+        namespace: 'aws-modules',
+        name: 'vpc',
+        provider: 'aws',
+        version: '1.5.1',
+        owner: '',
       });
     });
 
@@ -142,10 +186,18 @@ describe('mongodb store', async () => {
   describe('getLatestVersion()', () => {
     before(async () => {
       await save({
-        namespace: 'aws-modules', name: 'vpc', provider: 'aws', version: '1.5.0', owner: '',
+        namespace: 'aws-modules',
+        name: 'vpc',
+        provider: 'aws',
+        version: '1.5.0',
+        owner: '',
       });
       await save({
-        namespace: 'aws-modules', name: 'vpc', provider: 'aws', version: '1.5.1', owner: '',
+        namespace: 'aws-modules',
+        name: 'vpc',
+        provider: 'aws',
+        version: '1.5.1',
+        owner: '',
       });
     });
 
@@ -177,7 +229,12 @@ describe('mongodb store', async () => {
   describe('findOne()', () => {
     before(async () => {
       await save({
-        namespace: 'aws-modules', name: 'vpc', provider: 'aws', version: '1.5.1', owner: '', location: 'aws-modules/vpc/aws/1.5.1/module.tar.gz',
+        namespace: 'aws-modules',
+        name: 'vpc',
+        provider: 'aws',
+        version: '1.5.1',
+        owner: '',
+        location: 'aws-modules/vpc/aws/1.5.1/module.tar.gz',
       });
     });
 
@@ -211,7 +268,12 @@ describe('mongodb store', async () => {
   describe('increaseDownload()', () => {
     before(async () => {
       await save({
-        namespace: 'aws-modules', name: 'vpc', provider: 'aws', version: '1.5.1', owner: '', location: 'aws-modules/vpc/aws/1.5.1/module.tar.gz',
+        namespace: 'aws-modules',
+        name: 'vpc',
+        provider: 'aws',
+        version: '1.5.1',
+        owner: '',
+        location: 'aws-modules/vpc/aws/1.5.1/module.tar.gz',
       });
     });
 
diff --git a/stores/nedb.js b/stores/nedb.js
index 3685cd5..4439387 100644
--- a/stores/nedb.js
+++ b/stores/nedb.js
@@ -1,11 +1,16 @@
 const Datastore = require('nedb');
 const uuid = require('uuid/v1');
-const { join } = require('path');
+const {
+  join,
+} = require('path');
 const debug = require('debug')('citizen:server');
 
 const dbDir = process.env.CITIZEN_DB_DIR || 'data';
 const dbPath = join(dbDir, 'citizen.db');
-const db = new Datastore({ filename: dbPath, autoload: true });
+const db = new Datastore({
+  filename: dbPath,
+  autoload: true,
+});
 
 const save = data => new Promise((resolve, reject) => {
   const {
@@ -32,7 +37,9 @@ const save = data => new Promise((resolve, reject) => {
   };
 
   db.insert(module, (err, newDoc) => {
-    if (err) { return reject(err); }
+    if (err) {
+      return reject(err);
+    }
     debug('saved the module into db: %o', module);
     return resolve(newDoc);
   });
@@ -56,7 +63,9 @@ const findAll = ({
   debug('search db with %o', options);
 
   db.find(options, (err, allDocs) => {
-    if (err) { return reject(err); }
+    if (err) {
+      return reject(err);
+    }
 
     const totalRows = allDocs.length;
     const meta = {
@@ -65,12 +74,20 @@ const findAll = ({
       nextOffset: +offset + +limit,
       prevOffset: +offset - +limit,
     };
-    if (meta.prevOffset < 0) { meta.prevOffset = null; }
-    if (meta.nextOffset >= totalRows) { meta.nextOffset = null; }
+    if (meta.prevOffset < 0) {
+      meta.prevOffset = null;
+    }
+    if (meta.nextOffset >= totalRows) {
+      meta.nextOffset = null;
+    }
 
-    return db.find(options).sort({ _id: 1 }).skip(+offset).limit(+limit)
+    return db.find(options).sort({
+      _id: 1,
+    }).skip(+offset).limit(+limit)
       .exec((error, docs) => {
-        if (error) { return reject(err); }
+        if (error) {
+          return reject(err);
+        }
 
         debug('search result from db: %o', docs);
         return resolve({
@@ -81,10 +98,20 @@ const findAll = ({
   });
 });
 
-const getVersions = ({ namespace, name, provider } = {}) => new Promise((resolve, reject) => {
-  if (!namespace) { reject(new Error('namespace required.')); }
-  if (!name) { reject(new Error('name required.')); }
-  if (!provider) { reject(new Error('provider required.')); }
+const getVersions = ({
+  namespace,
+  name,
+  provider,
+} = {}) => new Promise((resolve, reject) => {
+  if (!namespace) {
+    reject(new Error('namespace required.'));
+  }
+  if (!name) {
+    reject(new Error('name required.'));
+  }
+  if (!provider) {
+    reject(new Error('provider required.'));
+  }
 
   const options = {
     namespace,
@@ -93,8 +120,12 @@ const getVersions = ({ namespace, name, provider } = {}) => new Promise((resolve
   };
 
   debug('search versions in db with %o', options);
-  db.find(options).sort({ _id: 1 }).exec((err, docs) => {
-    if (err) { return reject(err); }
+  db.find(options).sort({
+    _id: 1,
+  }).exec((err, docs) => {
+    if (err) {
+      return reject(err);
+    }
 
     const data = docs.map(d => ({
       version: d.version,
@@ -106,11 +137,21 @@ const getVersions = ({ namespace, name, provider } = {}) => new Promise((resolve
   });
 });
 
-const getLatestVersion = async ({ namespace, name, provider } = {}) => new Promise(
+const getLatestVersion = async ({
+  namespace,
+  name,
+  provider,
+} = {}) => new Promise(
   (resolve, reject) => {
-    if (!namespace) { reject(new Error('namespace required.')); }
-    if (!name) { reject(new Error('name required.')); }
-    if (!provider) { reject(new Error('provider required.')); }
+    if (!namespace) {
+      reject(new Error('namespace required.'));
+    }
+    if (!name) {
+      reject(new Error('name required.'));
+    }
+    if (!provider) {
+      reject(new Error('provider required.'));
+    }
 
     const options = {
       namespace,
@@ -118,8 +159,12 @@ const getLatestVersion = async ({ namespace, name, provider } = {}) => new Promi
       provider,
     };
 
-    db.find(options).sort({ version: -1 }).limit(1).exec((err, docs) => {
-      if (err) { return reject(err); }
+    db.find(options).sort({
+      version: -1,
+    }).limit(1).exec((err, docs) => {
+      if (err) {
+        return reject(err);
+      }
 
       debug('search latest version result from db: %o', docs);
       return resolve(docs.length > 0 ? docs[0] : null);
@@ -133,10 +178,18 @@ const findOne = async ({
   provider,
   version,
 } = {}) => new Promise((resolve, reject) => {
-  if (!namespace) { reject(new Error('namespace required.')); }
-  if (!name) { reject(new Error('name required.')); }
-  if (!provider) { reject(new Error('provider required.')); }
-  if (!version) { reject(new Error('version required.')); }
+  if (!namespace) {
+    reject(new Error('namespace required.'));
+  }
+  if (!name) {
+    reject(new Error('name required.'));
+  }
+  if (!provider) {
+    reject(new Error('provider required.'));
+  }
+  if (!version) {
+    reject(new Error('version required.'));
+  }
 
   const options = {
     namespace,
@@ -147,7 +200,9 @@ const findOne = async ({
 
   debug('search a module in db with %o', options);
   db.find(options, (err, docs) => {
-    if (err) { return reject(err); }
+    if (err) {
+      return reject(err);
+    }
 
     debug('search a module result from db: %o', docs);
     return resolve(docs.length > 0 ? docs[0] : null);
@@ -160,10 +215,18 @@ const increaseDownload = async ({
   provider,
   version,
 } = {}) => new Promise((resolve, reject) => {
-  if (!namespace) { reject(new Error('namespace required.')); }
-  if (!name) { reject(new Error('name required.')); }
-  if (!provider) { reject(new Error('provider required.')); }
-  if (!version) { reject(new Error('version required.')); }
+  if (!namespace) {
+    reject(new Error('namespace required.'));
+  }
+  if (!name) {
+    reject(new Error('name required.'));
+  }
+  if (!provider) {
+    reject(new Error('provider required.'));
+  }
+  if (!version) {
+    reject(new Error('version required.'));
+  }
 
   const options = {
     namespace,
@@ -173,11 +236,17 @@ const increaseDownload = async ({
   };
 
   db.update(
-    options,
-    { $inc: { downloads: 1 } },
-    { returnUpdatedDocs: true },
+    options, {
+      $inc: {
+        downloads: 1,
+      },
+    }, {
+      returnUpdatedDocs: true,
+    },
     (err, numAffected, affectedDocuments) => {
-      if (err) { return reject(err); }
+      if (err) {
+        return reject(err);
+      }
 
       return resolve(affectedDocuments);
     },
diff --git a/stores/nedb.spec.js b/stores/nedb.spec.js
index d65ecf5..44b3650 100644
--- a/stores/nedb.spec.js
+++ b/stores/nedb.spec.js
@@ -1,5 +1,7 @@
 /* eslint-disable no-unused-expressions */
-const { expect } = require('chai');
+const {
+  expect,
+} = require('chai');
 
 const {
   db,
@@ -10,7 +12,9 @@ const {
   getLatestVersion,
   increaseDownload,
 } = require('./nedb');
-const { deleteDbAll } = require('../test/helper');
+const {
+  deleteDbAll,
+} = require('../test/helper');
 
 describe('store\'s', async () => {
   describe('save()', () => {
@@ -35,16 +39,32 @@ describe('store\'s', async () => {
   describe('findAll()', () => {
     before(async () => {
       await save({
-        namespace: 'store-GCP', name: 'store-lb-http', provider: 'store-google', version: '1.0.4', owner: '',
+        namespace: 'store-GCP',
+        name: 'store-lb-http',
+        provider: 'store-google',
+        version: '1.0.4',
+        owner: '',
       });
       await save({
-        namespace: 'store-aws-modules', name: 'store-vpc', provider: 'store-aws', version: '1.2.1', owner: '',
+        namespace: 'store-aws-modules',
+        name: 'store-vpc',
+        provider: 'store-aws',
+        version: '1.2.1',
+        owner: '',
       });
       await save({
-        namespace: 'store-aws-modules', name: 'store-vpc', provider: 'store-aws', version: '1.5.0', owner: '',
+        namespace: 'store-aws-modules',
+        name: 'store-vpc',
+        provider: 'store-aws',
+        version: '1.5.0',
+        owner: '',
       });
       await save({
-        namespace: 'store-aws-modules', name: 'store-vpc', provider: 'store-aws', version: '1.5.1', owner: '',
+        namespace: 'store-aws-modules',
+        name: 'store-vpc',
+        provider: 'store-aws',
+        version: '1.5.1',
+        owner: '',
       });
     });
 
@@ -68,14 +88,20 @@ describe('store\'s', async () => {
     });
 
     it('should support pagination', async () => {
-      const result = await findAll({ offset: 2, limit: 2 });
+      const result = await findAll({
+        offset: 2,
+        limit: 2,
+      });
       expect(result).to.have.property('modules').to.have.lengthOf(2);
       expect(result.modules[0]).to.have.property('namespace').to.equal('store-aws-modules');
       expect(result.modules[0]).to.have.property('version').to.equal('1.5.0');
     });
 
     it('should return pagination information', async () => {
-      const result = await findAll({ offset: 2, limit: 1 });
+      const result = await findAll({
+        offset: 2,
+        limit: 1,
+      });
 
       expect(result).to.have.property('meta');
       expect(result.meta).to.have.property('limit').to.equal(1);
@@ -85,7 +111,10 @@ describe('store\'s', async () => {
     });
 
     it('should prevOffset pagination information', async () => {
-      const result = await findAll({ offset: 0, limit: 2 });
+      const result = await findAll({
+        offset: 0,
+        limit: 2,
+      });
 
       expect(result.meta).to.have.property('limit').to.equal(2);
       expect(result.meta).to.have.property('currentOffset').to.equal(0);
@@ -94,7 +123,10 @@ describe('store\'s', async () => {
     });
 
     it('should return pagination information', async () => {
-      const result = await findAll({ offset: 2, limit: 2 });
+      const result = await findAll({
+        offset: 2,
+        limit: 2,
+      });
 
       expect(result.meta).to.have.property('limit').to.equal(2);
       expect(result.meta).to.have.property('currentOffset').to.equal(2);
@@ -114,13 +146,25 @@ describe('store\'s', async () => {
   describe('getVersions()', () => {
     before(async () => {
       await save({
-        namespace: 'aws-modules', name: 'vpc', provider: 'aws', version: '1.2.1', owner: '',
+        namespace: 'aws-modules',
+        name: 'vpc',
+        provider: 'aws',
+        version: '1.2.1',
+        owner: '',
       });
       await save({
-        namespace: 'aws-modules', name: 'vpc', provider: 'aws', version: '1.5.0', owner: '',
+        namespace: 'aws-modules',
+        name: 'vpc',
+        provider: 'aws',
+        version: '1.5.0',
+        owner: '',
       });
       await save({
-        namespace: 'aws-modules', name: 'vpc', provider: 'aws', version: '1.5.1', owner: '',
+        namespace: 'aws-modules',
+        name: 'vpc',
+        provider: 'aws',
+        version: '1.5.1',
+        owner: '',
       });
     });
 
@@ -142,10 +186,18 @@ describe('store\'s', async () => {
   describe('getLatestVersion()', () => {
     before(async () => {
       await save({
-        namespace: 'aws-modules', name: 'vpc', provider: 'aws', version: '1.5.0', owner: '',
+        namespace: 'aws-modules',
+        name: 'vpc',
+        provider: 'aws',
+        version: '1.5.0',
+        owner: '',
       });
       await save({
-        namespace: 'aws-modules', name: 'vpc', provider: 'aws', version: '1.5.1', owner: '',
+        namespace: 'aws-modules',
+        name: 'vpc',
+        provider: 'aws',
+        version: '1.5.1',
+        owner: '',
       });
     });
 
@@ -177,7 +229,12 @@ describe('store\'s', async () => {
   describe('findOne()', () => {
     before(async () => {
       await save({
-        namespace: 'aws-modules', name: 'vpc', provider: 'aws', version: '1.5.1', owner: '', location: 'aws-modules/vpc/aws/1.5.1/module.tar.gz',
+        namespace: 'aws-modules',
+        name: 'vpc',
+        provider: 'aws',
+        version: '1.5.1',
+        owner: '',
+        location: 'aws-modules/vpc/aws/1.5.1/module.tar.gz',
       });
     });
 
@@ -211,7 +268,12 @@ describe('store\'s', async () => {
   describe('increaseDownload()', () => {
     before(async () => {
       await save({
-        namespace: 'aws-modules', name: 'vpc', provider: 'aws', version: '1.5.1', owner: '', location: 'aws-modules/vpc/aws/1.5.1/module.tar.gz',
+        namespace: 'aws-modules',
+        name: 'vpc',
+        provider: 'aws',
+        version: '1.5.1',
+        owner: '',
+        location: 'aws-modules/vpc/aws/1.5.1/module.tar.gz',
       });
     });
 
diff --git a/test/fixture/complex.tar.gz b/test/fixture/complex.tar.gz
deleted file mode 100644
index c45b495..0000000
Binary files a/test/fixture/complex.tar.gz and /dev/null differ
diff --git a/test/helper.js b/test/helper.js
index 900887d..08ee77d 100644
--- a/test/helper.js
+++ b/test/helper.js
@@ -1,7 +1,9 @@
 const nock = require('nock');
 
 module.exports = {
-  enableMock: ({ modulePath }) => {
+  enableMock: ({
+    modulePath,
+  }) => {
     if (process.env.CITIZEN_MOCK_ENABLED) {
       nock('https://s3.amazonaws.com')
         .persist()
@@ -16,7 +18,8 @@ module.exports = {
             'Transfer-Encoding', 'chunked',
             'Date', 'Mon, 21 May 2018 13:12:55 GMT',
             'Connection', 'close',
-            'Server', 'AmazonS3'],
+            'Server', 'AmazonS3',
+          ],
         );
 
       nock('https://s3.ap-northeast-1.amazonaws.com')
@@ -30,7 +33,8 @@ module.exports = {
             'Date', 'Sun, 21 Jan 2018 12:50:17 GMT',
             'ETag', '"ed168b6114db5f54d38bb1bd9ba45106"',
             'Content-Length', '0',
-            'Server', 'AmazonS3'],
+            'Server', 'AmazonS3',
+          ],
         )
         .get(`/${process.env.CITIZEN_AWS_S3_BUCKET}/${modulePath}`)
         .reply(
@@ -44,7 +48,8 @@ module.exports = {
             'Accept-Ranges', 'bytes',
             'Content-Type', 'application/octet-stream',
             'Content-Length', '136',
-            'Server', 'AmazonS3'],
+            'Server', 'AmazonS3',
+          ],
         )
         .get(`/${process.env.CITIZEN_AWS_S3_BUCKET}/${modulePath}/wrong`)
         .reply(
@@ -55,7 +60,8 @@ module.exports = {
             'Content-Type', 'application/xml',
             'Transfer-Encoding', 'chunked',
             'Date', 'Sun, 21 Jan 2018 16:47:34 GMT',
-            'Server', 'AmazonS3'],
+            'Server', 'AmazonS3',
+          ],
         )
         .delete(`/${process.env.CITIZEN_AWS_S3_BUCKET}/${modulePath}`)
         .reply(
@@ -64,7 +70,8 @@ module.exports = {
           ['x-amz-id-2', 'S0/qBL0imAEhHXwySaB9UxDzA025VeonKZa7A4lP5LZgDC6jiYRhmb5gpRhbbOO6e+SkfvVSLh0=',
             'x-amz-request-id', 'B9DB7B4B906399D7',
             'Date', 'Sun, 21 Jan 2018 12:50:18 GMT',
-            'Server', 'AmazonS3'],
+            'Server', 'AmazonS3',
+          ],
         );
     }
   },
@@ -74,8 +81,12 @@ module.exports = {
     }
   },
   deleteDbAll: db => new Promise((resolve, reject) => {
-    db.remove({}, { multi: true }, (err, numRemoved) => {
-      if (err) { return reject(err); }
+    db.remove({}, {
+      multi: true,
+    }, (err, numRemoved) => {
+      if (err) {
+        return reject(err);
+      }
       return resolve(numRemoved);
     });
   }),
diff --git a/test/integration/ngrok.js b/test/integration/ngrok.js
index da4fc41..4669241 100644
--- a/test/integration/ngrok.js
+++ b/test/integration/ngrok.js
@@ -1,5 +1,7 @@
 const ngrok = require('ngrok');
-const { parse } = require('url');
+const {
+  parse,
+} = require('url');
 
 const connect = async (port) => {
   const url = await ngrok.connect(port);
diff --git a/test/integration/terraform-cli.spec.js b/test/integration/terraform-cli.spec.js
index 9c7d069..d2d0239 100644
--- a/test/integration/terraform-cli.spec.js
+++ b/test/integration/terraform-cli.spec.js
@@ -1,16 +1,31 @@
 const https = require('https');
 const fs = require('fs');
-const { promisify } = require('util');
-const { expect } = require('chai');
+const {
+  promisify,
+} = require('util');
+const {
+  expect,
+} = require('chai');
 const getPort = require('get-port');
-const { execFile } = require('child_process');
-const { join } = require('path');
+const {
+  execFile,
+} = require('child_process');
+const {
+  join,
+} = require('path');
 const rimraf = promisify(require('rimraf'));
 
-const { connect, disconnect } = require('./ngrok');
+const {
+  connect,
+  disconnect,
+} = require('./ngrok');
 const registry = require('./registry');
-const { db } = require('../../lib/store');
-const { deleteDbAll } = require('../helper');
+const {
+  db,
+} = require('../../lib/store');
+const {
+  deleteDbAll,
+} = require('../helper');
 
 const writeFile = promisify(fs.writeFile);
 const unlink = promisify(fs.unlink);
@@ -32,7 +47,9 @@ describe('terraform CLI', () => {
     const download = join(__dirname, 'download-terraform');
 
     execFile(download, async (err) => {
-      if (err) { return done(err); }
+      if (err) {
+        return done(err);
+      }
 
       try {
         const port = await getPort();
@@ -101,7 +118,9 @@ describe('terraform CLI', () => {
     it('cli should connect the registry server with terraform-cli', (done) => {
       const cwd = join(__dirname, 'fixture');
 
-      execFile(terraform, ['get'], { cwd }, (err, stdout, stderr) => {
+      execFile(terraform, ['get'], {
+        cwd,
+      }, (err, stdout, stderr) => {
         expect(stdout).to.include('- module.vpc');
         expect(stderr).to.include('no versions found');
         done();
@@ -121,10 +140,13 @@ describe('terraform CLI', () => {
 
       execFile(
         client,
-        ['publish', 'citizen-test', 'alb', 'aws', '0.1.0'],
-        { cwd: moduleDir },
+        ['publish', 'citizen-test', 'alb', 'aws', '0.1.0'], {
+          cwd: moduleDir,
+        },
         async (err) => {
-          if (err) { return done(err); }
+          if (err) {
+            return done(err);
+          }
 
           const content = definition
             .replace(/__MODULE_ADDRESS__/, `${url.host}/citizen-test/alb/aws`)
@@ -145,8 +167,12 @@ describe('terraform CLI', () => {
     it('should download module from registry', (done) => {
       const cwd = join(__dirname, 'fixture');
 
-      execFile(terraform, ['get'], { cwd }, async (err, stdout) => {
-        if (err) { return done(err); }
+      execFile(terraform, ['get'], {
+        cwd,
+      }, async (err, stdout) => {
+        if (err) {
+          return done(err);
+        }
 
         expect(stdout).to.include('Found version 0.1.0 of citizen-test/alb/aws on');
         expect(stdout).to.include('Getting source');