feat(frontier): add SetProjectMemberRole RPC

[whoAbhishekSah]

Summary

• Add SetProjectMemberRole RPC for atomic role assignment on project members
• Add request/response message definitions with UUID validation

Related: raystack/frontier#1461

🤖 Generated with Claude Code

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: b5b56df7-1827-491e-8c6d-e422f615ccad

📥 Commits

Reviewing files that changed from the base of the PR and between c0f7151 and c56df54.

📒 Files selected for processing (1)

• raystack/frontier/v1beta1/frontier.proto

🚧 Files skipped from review as they are similar to previous changes (1)

• raystack/frontier/v1beta1/frontier.proto

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📝 Walkthrough

Walkthrough

Added a new RPC method SetProjectMemberRole to raystack.frontier.v1beta1.FrontierService in frontier.proto. The RPC accepts SetProjectMemberRoleRequest containing project_id (UUID), principal_id (UUID), principal_type (non-empty string), and role_id (UUID), and returns an empty SetProjectMemberRoleResponse.

Changes

Cohort / File(s)	Summary
Protobuf Service Definition raystack/frontier/v1beta1/frontier.proto	Added SetProjectMemberRole RPC method to FrontierService with new request message SetProjectMemberRoleRequest (fields: project_id, principal_id, principal_type, role_id with validation rules) and empty response message SetProjectMemberRoleResponse.

Estimated code review effort

🎯 Medium | ⏱️ ~30 minutes

Possibly related PRs

• feat: ListRolesForPAT proto definition #448: Adds analogous new RPC methods and messages to the same FrontierService endpoint in frontier.proto
• feat(frontier): add SetOrganizationMemberRole RPC #453: Introduces a similar SetOrganizationMemberRole RPC with equivalent request/response structure for organization-level member role assignments

Suggested reviewers

• rsbh
• AmanGIT07

Poem

🐰 With whiskers twitching, bright and keen,
A method new has swiftly been,
SetProjectMemberRole takes flight,
With UUIDs shining oh-so-bright!
New schema hops into the light. 🌟

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately describes the main change: adding a new SetProjectMemberRole RPC method to the FrontierService.
Description check	✅ Passed	The description is directly related to the changeset, mentioning the new SetProjectMemberRole RPC and message definitions with validation.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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[github-actions]

The latest Buf updates on your PR. Results from workflow Validate / validate (pull_request).

Build	Format	Lint	Breaking	Updated (UTC)
✅ passed	⏩ skipped	✅ passed	✅ passed	Mar 30, 2026, 9:16 AM