docs: add example of selector in rpc mode

[toddbaert]

We were missing an example of this (we have it in OFREP and sync.proto, but not evaluation.proto)

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[gemini-code-assist]

Summary of Changes

Hello @toddbaert, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request improves the documentation by providing practical examples for utilizing the Flagd-Selector header in RPC mode. This addresses a previous gap in the cheat sheet, making it easier for users to understand and implement flag filtering when making gRPC calls.

Highlights

• Documentation Update: Added a new section to the cheat sheet demonstrating how to use the Flagd-Selector header in RPC mode.
• Example Usage: Included grpcurl examples for filtering flags using the Flagd-Selector header with both ResolveBoolean and ResolveAll RPC calls.

Changelog

• docs/reference/cheat-sheet.md
  • Added a new section titled 'Using Selector Header' to illustrate flag filtering in RPC mode.
  • Included grpcurl command examples for ResolveBoolean and ResolveAll methods with the Flagd-Selector header.

Activity

• No activity has occurred on this pull request yet.

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[gemini-code-assist]

Code Review

This pull request adds examples for using selectors with the gRPC evaluation API to the cheat sheet documentation. The new examples demonstrate how to filter flags using the Flagd-Selector header for both single flag resolution and resolving all flags. The changes are clear, correct, and consistent with the rest of the documentation. This is a valuable addition that was previously missing.