Connecting GitHub Copilot's Suggestion API to EventBridge Pipes for Real-Time PR Help

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The article explains how to link a GitHub pull request webhook to a Lambda function through EventBridge Pipes so an AI suggestion can be generated as soon as a PR opens. It argues that this setup avoids the latency and complexity of polling or scheduled bots, since events flow directly from source to target. The walkthrough covers creating a pipe with an API Destination as the source and a Lambda as the target, with an optional dead-letter queue for failed events. Code examples use the AWS SDK for EventBridge, native fetch on Node 22, and the Octokit client for posting comments. The author also notes that Copilot's suggestion endpoint requires a specific client ID header, and omitting it results in an authorization error.

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