How to fix ' "Missing URI template variable 'uuid' for method parameter of type UUID"'?

Question

I have updated the pathvariable from String to UUID in the controller of a spring-boot implemented web application. I am using swagger for the front end. I am getting "Missing URI template variable 'uuid' for method parameter of type UUID" exception in the response after the change.

I have updated the pathvariable from String to UUID in the controller of a spring-boot implemented web application. I am using swagger for the front end. At the db side I am using mongodb. I am converting this uuid to string to use the exiting find method implemented for mongodb. I am getting this exception in the response. The same thing is working in another project, Couldn't find out why it is not working here.

@Path("/uuid")
@RequestMapping(value = "/uuid", method = { RequestMethod.GET })
@ResponseBody
@ResponseStatus(HttpStatus.OK)
@ApiOperation(value = "Retrieves result based on Unique Identifier", notes = "Returns result matching with the Unique Identifier", 
    position = 1, response = Response.class, httpMethod = "GET")
@ApiResponses(value = { @ApiResponse(code = HttpServletResponse.SC_BAD_REQUEST, message = "Invalid request."),
        @ApiResponse(code = HttpServletResponse.SC_NOT_FOUND, message = "Record not found."),
        @ApiResponse(code = HttpServletResponse.SC_FORBIDDEN, message = "Not authorized for this operation."),
        @ApiResponse(code = HttpServletResponse.SC_CONFLICT, message = "Object state out-of-date."),
        @ApiResponse(code = HttpServletResponse.SC_INTERNAL_SERVER_ERROR, message = "Server error") })
ResponseEntity<Response> getResultByUuid(@ApiParam(required = true, name = "uuid", value = "uuid") @PathParam("uuid") @PathVariable("uuid") UUID uuid,
        @ApiParam(access = "hidden") HttpServletRequest request)
        throws IOException;

1. It should be fetching me the result instead. Now it throws the exception. It doesn't even reach the controller, suspecting some spring configuration dependency stuff. Not sure what is that?

Answer 1

Path variable must be mentioned in the request mapping in curly brackets. In your code the following line

@RequestMapping(value = "/uuid", method = { RequestMethod.GET })

can be changed to

@RequestMapping(value = "/{uuid}", method = { RequestMethod.GET })

to fix that error.