[FEAT]: Add Overload to RepositoryContentsClient.GetRawContent Supporting Callback for Full Response

[ravi-darshankar]

Describe the need

We propose adding an overload to RepositoryContentsClient.cs -> GetRawContent that accepts a callback function, enabling access to the full HTTP response object. This would allow consumers to extract metadata such as the Last-Modified header directly, without requiring a second API call.

Problem Statement:
Our application fetches markdown content from over 200+ remote repositories. In addition to the file content, we need to determine the latest commit that modified each file. Currently, this requires two separate API calls:

1. GetRawContent – to fetch the file content

2. RepositoryCommitsClient.cs -> GetAll – to retrieve the commit history for the file

This dual-call approach negatively impacts performance at scale. Providing access to the full response object from GetRawContent would allow us to extract relevant metadata (e.g., Last-Modified), potentially eliminating the need for the second call in many scenarios.

SDK Version

No response

API Version

No response

Relevant log output

Performance issue

Code of Conduct

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