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3/21/2025
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README.md

askSMHI

Using OpenAI chat completion with function calls to SMHI api

The API is instructed to use the current time in Europe/Stockholm timezone. If the message can not be handled with the weather API endpoint, the Open AI assistant will reply instead.

Relevant API documentation

  • SMHI, forecast documentation
  • OPEN AI, GPT function calling documentation

How to use this endpoint

GET:

RUN_ENDPOINT?args=["A weather question"]

Response

{ answer?: string // If the message could not be answered with the SMHI API error?:string // data?: unknown // the actual data returned from SMHI, if the API is called summary?: string // a summary of the data, by GPT API }

Examples

  • How is the weather in the Capital of Sweden tomorrow.
  • How is the weather at Liseberg on Friday.

Packages used

  • zod: for describing the SMHI API response and function API input
  • zod-to-json-schema: Transform the zod schema to json schema (readable by the GPT API)
  • gpt3-tokenizer: count the number of tokens
  • formkit/temporal: To handle dates in a specific timezone (Europe/Stockholm)
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