53 lines
1.4 KiB
Markdown
53 lines
1.4 KiB
Markdown
# Environment Variables Template
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Copy this to `.env` in the backend directory and fill in your values.
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```bash
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# Server Configuration
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PORT=3001
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API_BASE_PATH=/v1
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NODE_ENV=development
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# Database Configuration
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DATABASE_URL=postgresql://user:password@localhost:5432/koin_ping
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# Ethereum JSON-RPC Endpoint
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# Examples:
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# - Infura: https://mainnet.infura.io/v3/YOUR-PROJECT-ID
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# - Alchemy: https://eth-mainnet.g.alchemy.com/v2/YOUR-API-KEY
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# - Local node: http://localhost:8545
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ETH_RPC_URL=https://mainnet.infura.io/v3/YOUR-PROJECT-ID
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# Polling interval in milliseconds
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# Default: 60000 (1 minute)
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POLL_INTERVAL_MS=60000
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# Firebase Configuration (for authentication)
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# Get this from Firebase Console > Project Settings > Project ID
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FIREBASE_PROJECT_ID=koin-ping
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```
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## Quick Setup
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```bash
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cd backend
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cp ENV_TEMPLATE.md .env
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# Edit .env with your actual values
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```
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## Firebase Setup
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For Firebase Admin SDK to work, you need to set up Application Default Credentials:
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**Option 1: Use Firebase Project ID (easiest for development)**
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- Just set `FIREBASE_PROJECT_ID` in .env
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- Firebase Admin will use Application Default Credentials
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**Option 2: Use Service Account Key (production)**
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1. Go to Firebase Console > Project Settings > Service Accounts
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2. Click "Generate new private key"
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3. Download the JSON file
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4. Either:
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- Set `GOOGLE_APPLICATION_CREDENTIALS=/path/to/serviceAccountKey.json` in .env
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- Or keep it in backend/ and add to .gitignore
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