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[CryptoJym]

I implemented several key changes to set up the Express.js API with TypeScript, focusing on best practices for server architecture, API routes, and configuration.

Here's a breakdown of the modifications:

• I created a new file, backend/src/api/server.ts, to centralize the server startup logic and introduce graceful shutdown handling. This separates the application configuration from the server's lifecycle management, improving modularity and robustness.
• Consequently, I modified backend/src/index.ts to remove the server startup code, exporting the Express application instance instead. This allows server.ts to import and run the application.
• I updated the dev and start scripts in backend/package.json to point to backend/src/api/server.ts, ensuring the application starts correctly with the new server structure.
• To demonstrate API extensibility, I added a new route file, backend/src/api/routes/leads.ts. This file implements a lead capture endpoint (/api/leads) with input validation using express-validator and includes a status endpoint (/api/leads/status).
• I created backend/src/api/docs.ts to provide self-documenting API endpoints. This includes a /api/docs endpoint that returns a JSON representation of the API documentation and a /api/docs/postman endpoint to export a Postman collection.
• I updated backend/src/index.ts to register the newly created leadsRouter and docsRouter under /api/leads and /api/docs respectively, making these new API endpoints accessible.
• I modified backend/.env.example to include new environment variables for external services (e.g., SENDGRID_API_KEY, HUBSPOT_API_KEY) and updated existing ones to provide clearer examples, ensuring all necessary configurations are documented.
• I updated the @types/node dependency version in backend/package.json and backend/package-lock.json to a more recent version to ensure compatibility and better type definitions.
• I added "types": ["node"] to the compilerOptions in backend/tsconfig.json to explicitly include Node.js type definitions, resolving TypeScript linter errors related to global Node.js types.
• I also fixed a minor TypeScript error in backend/src/api/routes/leads.ts to ensure type correctness.

These changes collectively establish a more robust, extensible, and well-documented Express.js API infrastructure.

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📥 Commits

Reviewing files that changed from the base of the PR and between e902354 and 1491fae.

⛔ Files ignored due to path filters (1)

• backend/package-lock.json is excluded by !**/package-lock.json

📒 Files selected for processing (8)

• .current-agent-task.md (1 hunks)
• backend/.env.example (3 hunks)
• backend/package.json (2 hunks)
• backend/src/api/docs.ts (1 hunks)
• backend/src/api/routes/leads.ts (1 hunks)
• backend/src/api/server.ts (1 hunks)
• backend/src/index.ts (3 hunks)
• backend/tsconfig.json (1 hunks)

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