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GibSend/CONTRIBUTION.md
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KM Koushik 04d0f4b123 feat: support standard AWS env vars and default credential chain (#401)
* feat: support standard AWS env vars and default credential chain

Replace non-standard AWS_ACCESS_KEY / AWS_SECRET_KEY with the AWS-standard
AWS_ACCESS_KEY_ID / AWS_SECRET_ACCESS_KEY. The old names are kept as
fallbacks in the runtimeEnv for backward compatibility.

Both vars are now optional. When omitted, the credentials object is not
passed to SESv2Client, STSClient, or SNSClient — the AWS SDK then falls
back to its default provider chain (IAM roles, ECS task roles, instance
profiles, etc.), which is the recommended approach for cloud-native deployments.

Closes #316

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

* refactor: extract shared getAwsCredentialOptions helper and add partial-config guard

- Move the credential spread logic into a single credentials.ts helper
  so SESv2Client, STSClient, and SNSClient all share one implementation
- Throw a clear error if only one of AWS_ACCESS_KEY_ID / AWS_SECRET_ACCESS_KEY
  is set, preventing silent fallback to the default provider chain with a
  half-configured environment

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix: align AWS env vars in docker and docs

* fix: use alias import for AWS credentials helper

---------

Co-authored-by: purva <purvahk08@gmail.com>
Co-authored-by: Purva Kandalgaonkar <136103488+purva-8@users.noreply.github.com>
2026-05-17 21:23:28 +10:00

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# 🤝 Contributing to useSend
Thanks for your interest in contributing to **useSend**! Were an open-source email infrastructure platform, and wed love your help to make it even better. This guide will walk you through how to get started, set up the project locally, and submit contributions.
---
## 🧰 Getting Started
All contributions begin with setting up the project locally. Follow the steps below to get started.
📖 **Refer to the full setup guide:**
[https://docs.usesend.com/get-started/local](https://docs.usesend.com/get-started/local)
### ⚙️ Prerequisites
Youll need:
- A GitHub account
- Node.js v18+
- `pnpm` (use `corepack enable` to activate)
- Docker (recommended)
- AWS & Cloudflare accounts (free tiers are fine)
---
## 🛠 Setting Up the Project
### 1. Fork & Clone
```bash
git clone https://github.com/YOUR-USERNAME/usesend.git
cd usesend
```
### 2. Install Dependencies
```bash
corepack enable
pnpm install
```
### 3. Setup Environment Variables
```bash
cp .env.example .env
```
Then:
- Generate a secret:
```bash
openssl rand -base64 32
```
- Add this to `.env` as `NEXTAUTH_SECRET`.
- Create symlink for Next.js:
```bash
ln -s ../../.env apps/web/.env
```
> Next.js requires the `.env` file in its directory. This symlink ensures both root and `apps/web` can access the same environment variables.
### 4. GitHub OAuth (Optional for Dev)
Set up a GitHub OAuth App:
- Homepage: `http://localhost:3000/login`
- Callback: `http://localhost:3000/api/auth/callback/github`
Add credentials to `.env`:
```env
GITHUB_ID=your_client_id
GITHUB_SECRET=your_client_secret
```
### 5. AWS Credentials (Optional for local email)
If you want to send real emails, add:
```env
AWS_ACCESS_KEY_ID=your_access_key
AWS_SECRET_ACCESS_KEY=your_secret_key
```
> You can skip this by using the `local-sen-sns` image for local-only email development.
---
## 🚀 Running the App
### Option 1: Docker (Recommended)
```bash
pnpm d
```
- **Dashboard**: [http://localhost:3000](http://localhost:3000)
- **Marketing Site**: [http://localhost:3001](http://localhost:3001)
> To test GitHub login, run:
```bash
cloudflared tunnel --url http://localhost:3000
```
Paste the Cloudflare URL in your GitHub App callback settings.
---
### Option 2: Manual DB Setup
If you're using your own PostgreSQL & Redis:
1. Add in `.env`:
```env
DATABASE_URL=your_postgres_url
REDIS_URL=your_redis_url
```
2. Migrate database:
```bash
pnpm db:migrate-dev
```
3. Start dev server:
```bash
pnpm dev
```
4. Use `cloudflared` as mentioned above if needed.
---
### 📝 Run Documentation Locally
```bash
pnpm dev:docs
```
---
## 📂 Code Structure Overview
```
apps/
├── web # Dashboard & Email Infra
├── marketing # Landing page
├── docs # This documentation site
packages/
├── eslint-config # Shared ESLint rules
├── sdk # TypeScript SDK for useSend REST API
├── tailwind-config # Shared Tailwind setup
├── typescript-config # Shared tsconfig
├── ui # Shared UI components (buttons, modals, etc.)
```
---
## 🧑‍💻 Making Contributions
1. **Create a Feature Branch**
```bash
git checkout -b feat/your-feature
```
2. **Make Your Changes**
- Follow the existing project structure.
- Write clean, modular, and reusable code.
- Formatting is enforced with Prettier.
3. **Commit Your Work**
```bash
git add .
git commit -m "feat: your message here"
```
4. **Push and Open a Pull Request**
```bash
git push origin feat/your-feature
```
- Open a PR against the `main` branch
- Fill in the PR template
---
## 💬 Community and Support
- **Discord**: [Join our server](https://discord.gg/BU8n8pJv8S)
- **GitHub Discussions**: [Start a discussion](https://github.com/usesend/usesend/discussions)
- **GitHub Issues**: [Report issues or bugs](https://github.com/usesend/usesend/issues)
---
## 🙋 Questions?
Need help or unsure where to begin? Just ask!
- Chat with us on [Discord](https://discord.gg/BU8n8pJv8S)
- Open an [Issue](https://github.com/usesend/usesend/issues)
Were excited to see your ideas and contributions! 💌