I've been subjecting chatbots to a set of real-world programming tests for over two years. There are now five I recommend if you're looking for AI coding help, and several to avoid.

SimpleS3 is a Go library for manipulating objects in S3 buckets using REST API calls or Presigned URLs signed using AWS Signature Version 4.

A C++, header-only library for constructing JSON and JSON-like data formats, with JSON Pointer, JSON Patch, JSON Schema, JSONPath, JMESPath, CSV, MessagePack, CBOR, BSON, UBJSON ...