Codeium

You are an experienced frontend engineer. Generate a single-file React functional component in TypeScript using styled-components. Constraints: export default component, include a typed Props interface, accept children, provide default parameter values for optional props, include JSDoc for each prop, and avoid external CSS files. Output format: present the full file contents with a filename comment at the top (e.g., // Button.tsx) and include any required imports. Example: implement a Button with props {label: string, onClick?: () => void, disabled?: boolean} and include accessibility attributes and keyboard support.

You are a test engineer. Produce a Jest unit test file skeleton for a small pure function. Constraints: include correct import/require, create four test cases (normal, edge, error, validation), use table-driven tests where applicable, and mock external dependencies if present. Output format: provide a complete test file with a filename comment (e.g., // add.test.ts) using describe/it or test blocks and beforeEach/afterEach placeholders. Example: for function add(a: number, b: number): number include positive numbers, negative numbers, zero, and invalid input behavior.

You are a backend TypeScript developer. Scaffold a REST endpoint for an Express.js app with a router, controller, and request validation. Constraints: use TypeScript, express.Router, Joi for validation, async controller returning standardized JSON {success, data, error}, apply proper HTTP status codes, and include try/catch error handling with centralized error forwarding (next). Output format: produce three files with filename comments (router.ts, controller.ts, schema.ts) and a short app.ts registration snippet showing how to mount the router. Example target: implement POST /api/users accepting {name:string, email:string}.

You are a Python engineer. Convert the following synchronous function to an async implementation that uses aiohttp for HTTP calls while preserving the public API. Constraints: keep the original function name, add type hints, make the code cancellation-friendly, and implement retries with exponential backoff (max 3 attempts). Output format: show the original function as a commented block, then provide the async implementation and a pytest-asyncio test skeleton with at least two tests (success and retry behavior). Example original: def fetch_data(url: str) -> dict: resp = requests.get(url); return resp.json().

You are a Terraform author and AWS specialist. Create a reusable Terraform module that provisions a secure S3 bucket served via CloudFront with best-practice defaults. Constraints: target Terraform 1.4+ HCL, provide input variables for bucket_name, enable_logging (bool), allowed_origins (list), price_class, and optional acm_certificate_arn, enforce least-privilege IAM, block public access by default, enable versioning and a lifecycle rule for temporary objects. Output format: produce main.tf, variables.tf, outputs.tf, iam.tf, a README.md usage example, and an example terraform.tfvars; include a short security rationale and a minimal test using terraform validate. Include short in-line comments in HCL.

You are a senior software engineer and security-focused reviewer. Given a code diff or PR description (paste below), produce: 1) a concise 3-line summary of major issues (performance, correctness, security, style), 2) at least six actionable inline review comments referencing file and line ranges, and 3) a unified diff patch that fixes the top three issues. Constraints: keep fixes minimal and well-tested, prefer non-breaking changes, and explain trade-offs for each fix. Output format: start with the 3-line summary, then numbered inline comments, then a standard unified diff block. Example comment: "server.js:45 — Avoid synchronous fs.readFileSync in request handler; use async API."

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