[WIP] Update backend route to use command in URL

[Copilot]

• Modify apps/desktop/src/lib/backend/web.ts to include the command in the URL path (e.g., http://localhost:port/list_projects) instead of in the JSON body
• Modify crates/but-server/src/lib.rs to:
  • Create route handler that extracts the command name from the URL path (/{command})
  • Accept the params directly as JSON body (not wrapped in {command, params})
  • Remove the old / endpoint (no backward compatibility needed)
• Verify code compiles correctly

Original prompt

The browser application in apps/desktop currently calls the backend as implemented by but-server using posts on http://localhost:port/, with an object like {"command":"list_projects","params":{}}. Make it so the command is part of the post URL like http://localhost:port/list_projects, with the posted JSON object being the parameters themselves.
Adjust but-server to be able to deal with this, and expose all functions in the axum routing table.

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1 Skipped Deployment

Project	Deployment	Review	Updated (UTC)
gitbutler-web	Ignored	Preview	Jan 25, 2026 9:49am

[Byron]

@copilot Continue

[Copilot]

@copilot Continue

Done in e4374e8. The frontend now POSTs to http://localhost:port/{command} with params as the JSON body, and the backend extracts the command from the URL path. Removed the old / endpoint as requested.

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[Byron]

This actually is a great step in the right direction, as it makes command calls from the frontend more obvious.

It's a minimal change, and from here it should be easier to setup an actual routing table. Let's try that next.

[Copilot]

Pull request overview

This PR refactors the HTTP API communication between the frontend desktop app and the but-server backend. The command name is now included in the URL path (e.g., POST /list_projects) instead of being part of the JSON request body. The parameters are sent directly as the JSON body rather than being wrapped in a {command, params} structure.

Changes:

• Modified the frontend to construct URLs with the command name as part of the path and send params as the direct JSON body
• Updated the backend to extract the command from the URL path parameter and accept params directly as the JSON body
• Removed the old root endpoint handler that accepted command in the body

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
apps/desktop/src/lib/backend/web.ts	Updated webInvoke to append command to URL path and send params directly as JSON body
crates/but-server/src/lib.rs	Changed route from / to /{command}, updated handler to extract command from path and reconstruct Request internally