feat(nodejs): migrate codebase to typescript, and introduce undici as transport (#42)

* refactor: migrate to typescript, introduce undici, and improve contributing

* chore: update dependencies and improve Sender class functionality

- Bumped versions of several devDependencies in package.json and pnpm-lock.yaml, including eslint, prettier, and testcontainers.
- Enhanced the Sender class by introducing a flushPromiseChain to manage flush operations sequentially, ensuring data integrity during high load.
- Refactored the HTTP request handling to improve error logging and response management.
- Added new private methods for buffer management and data sending logic.
- Updated tests to reflect changes in error messages and ensure proper functionality under high load conditions.

Author: semoal

.eslintrc.json

@@ -2,16 +2,17 @@ name: build
 
 on:
   push:
-  schedule:
-    - cron: '15 2,10,18 * * *'
+    branches:
+      - main
+  pull_request:
 
 jobs:
   test:
     name: Build with Node.js ${{ matrix.node-version }}
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [16, latest]
+        node-version: [20, 22, latest]
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
@@ -23,11 +24,16 @@ jobs:
         with:
           node-version: ${{ matrix.node-version }}
 
-      - name: Install dependencies
-        run: npm ci
+      - uses: pnpm/action-setup@v4
+        with:
+          version: 9
+          run_install: true
+
+      - name: Linting
+        run: pnpm eslint
 
-      - name: Run tests
-        run: npm test
+      - name: Type-checking
+        run: pnpm typecheck
 
-      - name: Run linter
-        run: npm run eslint
+      - name: Tests
+        run: pnpm test

.github/workflows/build.yml

@@ -1,13 +1,11 @@
-name: build
+name: publish
 
 on:
-  push:
-    branches:
-      - main
+  workflow_dispatch:
 
 jobs:
-  build:
-    name: Publish @questdb/nodejs-questdb-client to npm
+  test:
+    name: Publish
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
@@ -18,16 +16,21 @@ jobs:
       - name: Setup node
         uses: actions/setup-node@v4
         with:
-          node-version: latest
+          node-version: 22
 
-      - name: Install dependencies
-        run: npm ci
+      - uses: pnpm/action-setup@v4
+        with:
+          version: 9
+          run_install: true
+
+      - name: Linting
+        run: pnpm eslint
 
-      - name: Run tests
-        run: npm test
+      - name: Type-checking
+        run: pnpm typecheck
 
-      - name: Run linter
-        run: npm run eslint
+      - name: Tests
+        run: pnpm test
 
       - name: Publish
         uses: JS-DevTools/npm-publish@v3

.github/workflows/publish.yml

@@ -3,3 +3,5 @@ coverage
 .idea
 *.iml
 .DS_Store
+certs
+dist

.gitignore

@@ -0,0 +1,4 @@
+{
+  "tabWidth": 2,
+  "useTabs": false
+}

.prettierrc

@@ -0,0 +1,97 @@
+# Contributing to nodejs-questdb-client
+
+Thank you for your interest in contributing to nodejs-questdb-client! This document provides guidelines and instructions for contributing to the project.
+
+## Development Setup
+
+1. Fork and clone the repository:
+```bash
+git clone https://github.com/YOUR_USERNAME/nodejs-questdb-client.git
+cd nodejs-questdb-client
+```
+
+2. Install dependencies:
+```bash
+pnpm install
+```
+
+
+## Running Tests
+
+The project uses Vitest for testing. Tests are located in the `test` directory.
+
+1. Run tests in watch mode during development:
+```bash
+pnpm run test
+```
+
+### Test Requirements
+
+- Some tests use mock servers and certificates located in the `test/certs` directory
+
+> You can generate the certificates by running the `generateCerts.sh` script in the `scripts` directory. The script requires two arguments: the output directory and the password for the certificates.
+`./scripts/generateCerts.sh . questdbPwd123`
+
+
+## Code Style and Quality
+
+1. The project uses TypeScript. Make sure your code is properly typed.
+
+2. Format your code using Prettier
+
+3. Lint your code:
+```bash
+pnpm run lint
+```
+
+4. Fix linting issues:
+```bash
+pnpm run lint --fix
+```
+
+## Making Changes
+
+1. Create a new branch for your changes:
+```bash
+git checkout -b feature/your-feature-name
+```
+
+2. Make your changes and commit them with clear, descriptive commit messages:
+```bash
+git add .
+git commit -m "feat: add new feature"
+```
+
+We follow the [Conventional Commits](https://www.conventionalcommits.org/) specification for commit messages.
+
+3. Push your changes to your fork:
+```bash
+git push origin feature/your-feature-name
+```
+
+4. Create a Pull Request from your fork to the main repository.
+
+## Pull Request Guidelines
+
+1. Make sure all tests pass
+2. Update documentation if needed
+3. Add tests for new features
+4. Keep PRs focused - one feature or bug fix per PR
+5. Link any related issues in the PR description
+
+## Documentation
+
+- Update the README.md if you're adding new features or changing existing ones
+- Add JSDoc comments for new public APIs
+- Include examples in the documentation when appropriate
+
+## Need Help?
+
+If you have questions or need help, you can:
+- Open an issue with your question
+- Join our community discussions (if available)
+
+## License
+
+By contributing to nodejs-questdb-client, you agree that your contributions will be licensed under the project's license.
+