Spring-boot rest api. Truncate trailing slash

Question

I have a spring-boot rest api.

In my application.properties I have:

server.port=8100
server.contextPath=/api/users

There's a controller:

@RestController
@RequestMapping("")
public class UserService {
    @RequestMapping(value = "", method = POST, produces = "application/json; charset=UTF-8")
    public ResponseEntity<UserJson> create(@RequestBody UserJson userJson) {
    ...
    }
}

When I call:

POST http://localhost:8100/api/users/ notice the trailing slash (with user's json) - create method executes fine.

But when I call:

POST http://localhost:8100/api/users without trailing slash (with user's json) - I receive 405 error:

{ "timestamp": 1520839904193, "status": 405, "error": "Method Not Allowed", "exception": "org.springframework.web.HttpRequestMethodNotSupportedException", "message": "Request method 'GET' not supported", "path": "/api/users/" }

I need my URL without trailing slash, just .../api/users, and why it's being treated as GET method?

Looks like your HTTP server is rewriting requests without the trailing slash and sending a redirect, substituting GET for POST. Check your server config. — Jim Garrison, Mar 12 '18 at 07:41
@JimGarrison What configs are you referring to? I start my app as `mvn spring-boot:run`, so it's embedded Tomcat. I don't have any additional configs. — htshame, Mar 12 '18 at 07:44
Hmm... based on [this question](https://stackoverflow.com/q/32098801/18157) it looks like it's not designed to do that redirect.... so this is beyond my expertise. Sorry. — Jim Garrison, Mar 12 '18 at 07:48
I found the answer from here. https://stackoverflow.com/a/45258671/331946 — coverboy, Aug 24 '20 at 12:47

htshame · Answer 1 · 2021-04-08T14:29:38.380

1

If I change server.contextPath to server.contextPath=/api and @RequestMapping in my RestController to @RequestMapping("/users") everything works fine. create() method is being called with and without of trailing slash at the end on the URL.

edited Apr 08 '21 at 14:29

answered Apr 08 '21 at 13:15

htshame

6,599
5
36
56

Any particular reason you set the contextPath at all? A request mapping for /api/users would be what I would do. Actually I would do /api/users/v1 because future you will thank you for introducing API versions sooner rather than later. – Gimby Apr 08 '21 at 13:24
I have a pretty big app, so we need a contextPath for the common API URl prefix. I also have /v1 and /v2 prefixes, but they are on the @RestController levels now. – htshame Apr 08 '21 at 14:28

Spring-boot rest api. Truncate trailing slash

1 Answers1