Initial commit

.gitignore

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+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Typescript v1 declaration files
+typings/
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+
+# next.js build output
+.next

README.md

@@ -1 +1,75 @@
-# gatsby-firesource
+# gatsby-firesource [![npm version](https://badge.fury.io/js/gatsby-firesource.svg)](https://badge.fury.io/js/gatsby-firesource)
+
+Gatsby source plugin for building websites using the Firestore as a data source.
+
+# Usage
+1. Get a private key for your Firebase project.
+2. Put that private key somewhere in your Gatsby project.
+3. `$ npm i gatsby-firesource`
+4. Configure `gatsby-config.js`
+
+```javascript
+module.exports = {
+  plugins: [
+    {
+      resolve: 'gatsby-firesource',
+      options: {
+        credential: require("./firebase.json"),
+        types: [
+          {
+            type: 'Book',
+            collection: 'books',
+            map: doc => ({
+              title: doc.title,
+              isbn: doc.isbn,
+              author___NODE: doc.author.id,
+            }),
+          },
+          {
+            type: 'Author',
+            collection: 'authors',
+            map: doc => ({
+              name: doc.name,
+              country: doc.country,
+              books___NODE: doc.books.map(book => book.id),
+            }),
+          },
+        ],
+      },
+    },
+  ],
+};
+
+```
+
+5. To query
+```graphql
+{
+  allBooks {
+    edges {
+      node {
+        title
+        isbn
+        author {
+          name
+        }
+      }
+    }
+  }
+}
+```
+
+# Configurations
+Key|Description
+---|---
+credential|Require your private key here
+types| Array of types, which require the following 3 keys
+type|The type of the collection, which will be used in GraphQL queries. Eg, when `type = Book`, the GraphQL types are named `book` and `allBook`
+collection|The name of the collections in Firestore. Nested collections are **not** tested.
+map|A function to map your data in Firestore to Gatsby nodes, utilize the undocumented `___NODE` to link between nodes
+
+# Disclaimer
+This project is created solely to suit our requirements, no maintenance/warranty are provided. Feel free to send in pull requests.
+
+# Acknowledgement
+[gatsby-source-firestore](https://github.com/taessina/gatsby-source-firestore)

gatsby-node.js

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+const report = require('gatsby-cli/lib/reporter');
+const firebase = require('firebase-admin');
+const crypto = require('crypto');
+
+const getDigest = id =>
+  crypto
+    .createHash('md5')
+    .update(id)
+    .digest('hex');
+
+exports.sourceNodes = async (
+  { actions },
+  { types, credential }
+) => {
+
+  try{
+    if (firebase.apps || !firebase.apps.length) {
+      firebase.initializeApp({ credential: firebase.credential.cert(credential) });
+    }
+  } catch (e) {
+    report.warn('Could not initialize Firebase. Please check `credential` property in gatsby-config.js');
+    report.warn(e);
+    return;
+  }
+
+  const db = firebase.firestore();
+
+  const { createNode } = actions;
+
+  const promises = types.map(
+    async ({ collection, type, map = node => node }) => {
+      const snapshot = await db.collection(collection).get();
+      for (let doc of snapshot.docs) {
+        const contentDigest = getDigest(doc.id);
+        createNode(
+          Object.assign({}, map(doc.data()), {
+            id: doc.id,
+            parent: null,
+            children: [],
+            internal: {
+              type,
+              contentDigest,
+            },
+          })
+        );
+
+        Promise.resolve();
+      }
+    }
+  );
+
+  await Promise.all(promises);
+
+  return;
+};

index.js

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+// no-op-lo-op