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
– Jim Garrison, Commented Mar 12, 2018 at 7:41
@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
– htshame, Commented Mar 12, 2018 at 7:44
Hmm... based on this question it looks like it's not designed to do that redirect.... so this is beyond my expertise. Sorry. — Jim Garrison
– Jim Garrison, Commented Mar 12, 2018 at 7:48
I found the answer from here. stackoverflow.com/a/45258671/331946 — coverboy
– coverboy, Commented Aug 24, 2020 at 12:47

htshame · Accepted Answer · 2021-04-08 14:29:38Z

2

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 8, 2021 at 14:29

answered Apr 8, 2021 at 13:15

htshame

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2 Comments

Gimby Over a year ago

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.

htshame Over a year ago

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.

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