How to use @PostMapping()?

Question

I want to create API call by passing string value but without returning output.

Inside API method, only updating the value to database.

How to create API @postmapping(value = "endpoint") in this case

You can try @RequestMapping(value="endpoint", method=RequestMethod.POST) — Sudhir Ojha
– Sudhir Ojha, Commented May 14, 2018 at 5:59
instead of using @RequestMapping(value="endpoint", method=RequestMethod.POST) , we can use @PostMapping(value="endpoint) — Vanitha V
– Vanitha V, Commented May 14, 2018 at 6:02
Yes you can but without returning anything how can you be sure whether the transaction is successful or not. — Sudhir Ojha
– Sudhir Ojha, Commented May 14, 2018 at 6:05

Bunyamin Coskuner · Accepted Answer · 2018-05-14 06:21:30Z

1

Why do you not want to return anything? You should return at least true to notify the caller that the transaction was successful.

@PostMapping("/endpoint") public boolean updateSomeData(String value) { boolean result = someService.updateSomething(value); return result; }

If you still do not want to return anything, you can simply change return type of the method to void as follows

@PostMapping("/endpoint") public void updateSomeData(String value) { someService.updateSomething(value); }

answered May 14, 2018 at 6:02

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5 Comments

Okay. But i'm passing string parameters how can i declare it ?

I just put input type of Object because I don't know about your input.

one parameter updateSomeData(@RequestParam String value)

Then you can use, @PostMapping("/endpoint") public void updateSomeData(String value) { someService.updateSomething(value); }

@VanithaV I updated my answer. You can simply use String value. You can use or emit @RequestParam

Priyanka · Accepted Answer · 2018-05-14 06:31:29Z

If you want to pass string as pathvariable like,

you can use below code

@PostMapping(value="/endpoint/{string_value}") public void update(@PathVariable("string_value") String string_value){ //update operation }

If you want to pass string as requestvariable like,

you can use below code

@PostMapping(value="/endpoint") public void update(@RequestParam("string_value") String string_value){ //update operation }