API路由命名最佳实践咨询及REST API规范定义方案探讨

Hey David, let's break this down—your current approach is already heading in the right direction, but we can refine it to align more closely with REST's core principles. Here's my professional take on each part:

CRUD Operations: Fix a Small Misstep #

First, a quick correction: your POST /projects/{projectId} doesn't fit standard REST conventions.

• Use POST /projects (without the project ID) to create a new project—this lets the server generate and return the unique ID for the new resource.
• PUT /projects/{projectId} is perfect for full updates (replacing the entire project resource), and DELETE /projects/{projectId} is spot-on for removal.
• For partial updates (like changing just a single field), consider using PATCH /projects/{projectId} instead of PUT—it's more efficient and semantically clearer when you don't need to send the entire resource body.

Non-CRUD Actions: Prioritize Resource State Over Verbs #

Your POST /projects/{projectId}/changeStatus works, but we can make it more RESTful by focusing on resource state rather than explicit actions:

• If changing status is just updating a field on the project, use PATCH /projects/{projectId} with a body like {"status": "active"}—this aligns with REST's core idea of manipulating resources, not triggering commands.
• If the action has side effects beyond updating a field (like sending notifications or triggering workflows), keeping the POST endpoint is acceptable. But rename it to reflect the outcome rather than the action, e.g., POST /projects/{projectId}/activate or POST /projects/{projectId}/archive—this makes the endpoint's purpose instantly clear to developers.

Associated Entities: Two Valid Approaches #

Your nested resource pattern GET /projects/{projectId}/workItems/ is a great choice for emphasizing the parent-child relationship between projects and work items.

• An alternative is to use a top-level resource with a query parameter: GET /workItems?projectId={projectId}. This is useful if you need to query work items across multiple projects, or if work items are standalone resources that make sense outside a project context.
• Whichever you choose, add support for common query parameters like ?page=1&limit=20 (pagination) or ?status=completed (filtering) to make the endpoint flexible for real-world use cases.

Bonus Best Practices to Level Up Your API #

• Use precise HTTP status codes: Return 201 Created for successful POSTs, 200 OK for GET/PUT/PATCH, 204 No Content for DELETE, 404 Not Found for missing resources, and 400 Bad Request for invalid input.
• Return resource representations: After creating or updating a resource, send back the full (or relevant) resource object in the response—this gives clients all the data they need without an extra GET call.
• Version your API: Start with a version prefix like /v1/projects early on. This lets you iterate on your API without breaking existing clients when you make changes.
• Keep URLs clean: Use lowercase letters and hyphens (not underscores) for readability, e.g., /projects/{project-id}/work-items.

内容的提问来源于stack exchange，提问作者David Srowston