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This is a typescript library that helps handle function calling with OpenAI's ChatGPT API.

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Function-GPT

This is a typescript library that helps handle function calling with OpenAI.

NPM Build Status codecov MIT License

  • Uses typescript decorators to provide metadata for function calling
  • Automatically generate function calling JSON schema from decorated typescript functions
  • Automatically call functions based on name and JSON-formatted arguments
  • Can be used with OpenAI's Chat Completion API as well as the Assistants API

Example

import { gptFunction, gptString, FunctionCallingProvider } from 'function-gpt';

// Define the type of the input parameter for functions above.
class BrowseParams {
  // Decorate each field with @gptObjectField to provide necessary metadata.
  @gptString('url of the web page to browse')
  public url!: string;
}

// Create your own class that extends FunctionCallingProvider.
class BrowseProvider extends FunctionCallingProvider {
  // Define functions that you want to provide to OpenAI for function calling.
  // Decorate each function with @gptFunction to provide necessary metadata.
  // The function should accept a single parameter that is a typed object.
  @gptFunction('make http request to a url and return its html content', BrowseParams)
  async browse(params: BrowseParams) {
    const response = await fetch(params.url);
    return await response.text();
  }
}

const provider = new BrowseProvider();

const schema = await provider.getSchema();
const result = await provider.handleFunctionCall(
  'browse',
  JSON.stringify({ url: 'https://www.google.com' }),
);

API References

See API references for more detailed information on how to use the library.

Installation

npm install function-gpt --save
# or
yarn add function-gpt
# or
pnpm add function-gpt

Contributing

Contributions are welcome! See CONTRIBUTING.md for more info.

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This is a typescript library that helps handle function calling with OpenAI's ChatGPT API.

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