Function summarizeEvent

packages/aws-lambda/src/handler.ts:181–207

* Compact, non-PII summary of a Lambda event for logging. The full * event payload can include the entire project config; we only emit * the routable fields (S3 URIs, chunk index, format) needed to triage * a failure from CloudWatch.

(
  event: PlanEvent | RenderChunkEvent | AssembleEvent,
)

 * a failure from CloudWatch.
 */
function summarizeEvent(
  event: PlanEvent | RenderChunkEvent | AssembleEvent,
): Record<string, unknown> {
  switch (event.Action) {
    case "plan":
      return {
        projectS3Uri: event.ProjectS3Uri,
        planOutputS3Prefix: event.PlanOutputS3Prefix,
        format: event.Config.format,
        fps: event.Config.fps,
      };
    case "renderChunk":
      return {
        planS3Uri: event.PlanS3Uri,
        chunkIndex: event.ChunkIndex,
        format: event.Format,
      };
    case "assemble":
      return {
        planS3Uri: event.PlanS3Uri,
        chunkCount: event.ChunkS3Uris.length,
        hasAudio: event.AudioS3Uri !== null,
        outputS3Uri: event.OutputS3Uri,
        format: event.Format,
      };
  }
}

/**
 * Lambda sets `TMPDIR` to `/tmp` already, but the bundled binaries (Chrome