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Weather data API service
Plan a small API that returns the current weather for a city from an upstream source, with caching and clear errors.
Start with this template
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Opens the planner with this template filled in. Nothing is saved unless you choose to.Carries the template guidance into the prompt helper in this tab. An existing prompt asks before replacement. Use Copy outline to include your answers.
Guidance only — opening a template runs nothing, saves nothing and grants no permission.
Suits
- Developers who need one simple weather endpoint for their own app
- Learners practising API design with a real data source
Result
Define the endpoints, the response format, the upstream data source and the error rules so an AI assistant can build a small, well-behaved API.
Example outcome — one or two endpoint definitions with example responses, the caching rule, the error responses, and where the upstream key is stored. This is an example plan, not a running service.
Steps
- Read the upstream source's terms, rate limits and attribution rules before writing anything.
- Define each endpoint: its path, inputs, one example response and its units.
- Choose a cache time, so repeated calls stay within the upstream limit.
- Write the error rules: unknown city, upstream unavailable, and too many requests.
- Ask the assistant for a first version, keep the upstream key in an environment variable, and test each error.
Checks
- Every response states its units and the time the data was observed.
- The upstream key never appears in code, logs or responses.
- An unknown city returns a clear error, not a crash.
- The upstream source is credited as its terms require.
Limits
- Accuracy and availability depend on the upstream source; this plan cannot improve either.
- Public access needs rate limiting and abuse protection beyond this first version.
- This is planning guidance: it does not build, publish, send, or run anything.
Before you start
- An account and key for the upstream data source, obtained by you under its terms
- A place to run the service that supports secret environment variables
Permissions
- None. This template does not request filesystem, network, shell, secret, or account access.
Your answers
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Technical details
Version and content hash identify the reviewed wording of this template.
- Template version:
- v1
- Content hash:
sha256:41f6f25106ffa537a2d0102ef7c052163f3c86736a70ee5672dbbcea69d69d71- Provider compatibility
- Not verified for any target. Codex: Unverified · Claude: Unverified · LM Studio: Unverified
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