Function Calling Extensions Sample

Description

This project is a Go application that demonstrates how to use function calling in an agent-based GitHub Copilot Extension.

Prerequisites

Go 1.16 or higher
Set the following environment variables (example below):

export PORT=8080
export CLIENT_ID=Iv1.0ae52273ad3193eb // the application id
export CLIENT_SECRET="your_client_secret" // generate a new client secret for your application
export FQDN=https://6de513480979.ngrok.app // use ngrok to expose a url

Installation:

Clone the repository:

git clone git@github.com:copilot-extensions/function-calling-extension.git
cd function-calling-extension

Install dependencies:

go mod tidy

Usage

Start up ngrok with the port provided:

ngrok http http://localhost:8080

Set the environment variables (use the ngrok generated url for the FDQN)
Run the application:

go run .

Accessing the Agent in Chat:

In the Copilot tab of your Application settings (https://github.com/settings/apps/<app_name>/agent)

Set the URL that was set for your FQDN above with the endpoint /agent (e.g. https://6de513480979.ngrok.app/agent)
Set the Pre-Authorization URL with the endpoint /auth/authorization (e.g. https://6de513480979.ngrok.app/auth/authorization)

In the General tab of your application settings (https://github.com/settings/apps/<app_name>)

Set the Callback URL with the /auth/callback endpoint (e.g. https://6de513480979.ngrok.app/auth/callback)
Set the Homepage URL with the base ngrok endpoint (e.g. https://6de513480979.ngrok.app/auth/callback)

Ensure your permissions are enabled in Permissions & events >

Repository Permissions > Issues > Access: Read and Write
Account Permissions > Copilot Chat > Access: Read Only

Ensure you install your application at (https://github.com/apps/<app_name>)
Now if you go to https://github.com/copilot you can @ your agent using the name of your application.

What Can It Do

Test out the agent with the following commands!

Description	Prompt
User asking `@agent` to create a GitHub issue	`@agent Create an issue in the repo (org/repo) with title "my first issue" and body "hooray I created an issue"`
User asking `@agent` to list GitHub issues	`@agent list all issues in this repo (org/repo)`

Copilot Extensions Documentation

License

taewdy/function-calling-extension

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