RestController PutMapping malformed url when using "[]" - spring-boot

I have a Spring App witch use a controller like this:
#PutMapping("/block/{blockid}/service/{serviceid}")
public ResponseEntity<String> config(#PathVariable blockid, #PathVariable serviceid, #RequestBody String body) {
{
And I using Postman to test the request, if i send this request to this url:
url: localhost:7000/block/myBlockTest/service/externalServiceTest[0]
Response this error:
Description The server cannot or will not process the
request due to something that is perceived to be a client error
(e.g., malformed request syntax, invalid request message framing, or
deceptive request routing).
I know the problem is "[0]" in the url.
Is there any way I can send this in the URL ?
Thanks.

OK, I just need modify the request to be localhost:7000/block/myBlockTest/service/externalServiceTest%5B0%5D
Special parameters.
https://cachefly.zendesk.com/hc/en-us/articles/215068626-How-to-format-URLs-that-have-special-characters-in-the-filename-

Related

How to use #PostMapping and Postman to send post request and JSON Object as a request parameter

**I am trying to make a POST controller in springboot having request parameter as JSON object and hiting the controller from the postman .The problem I am facing is that I want to pass a JSONObject in the parameter itself from the postman. I am sending JSON from POSTMAN in body, basically pasted JSON object in the raw body **
#RestController
public class PostController {
#PostMapping(value="/status")
public JSONObject status (#RequestBody JSONObject jsonObject){
System.out.println(jsonObject.toString());
return jsonObject;
}
}
`
I am hitting from the postman with POST request at the url : localhost:8080/status ,,
I am not getting the appropriate response. Main problem is that the JSON object is not getting passed to the request . PLease explain.
Intellij terminal response :
{}
AT line 19
and POSTMAN response is :
{
"empty": true,
"mapType": "java.util.HashMap"
}
enter image description here

sending GET request via REST template with JSON request body getting failed with binding binding element must be a struct error?

I am trying to send a GET request using REST Template with a JSON request body, but the request is failing with error,
processing
failedorg.springframework.web.client.HttpServerErrorException$InternalServerError:
500 Internal Server Error: [code=400, message=binding element must be
a struct]
I have tried hitting the endpoint using the insomnia and the request is going through successfully, There I have put 2 headers
1. Content-Type - application/json
2. Authorization - Bearer ******
And the JSON body.
My code in spring boot looks like this.
ResponseEntity<String> responseObject = null;
String URL = "https://myurl/endpoint";
String requestBody = "{\"requestType\":\"status\"}";
HttpHeaders headers = new HttpHeaders();
headers.add("Authorization","Bearer ***");
headers.setContentType(MediaType.APPLICATION_JSON);
HttpEntity httpEntity = new HttpEntity<>(body,headers);
System.out.println(httpEntity+" httpEntity");
System.out.println(headers+" headers");
responseObject = restTemplate.exchange(URL, HttpMethod.GET, httpEntity, String.class);
The sout for httpentity and header looks like this
httpEntity
<{"requestType":"status"},[Authorization:"Bearer *******************", Content-Type:"application/json"]>
headers
[Authorization:"Bearer *************************", Content-Type:"application/json"]
Also when I am trying to send a request without the body to another endpoint using rest template, that is getting executed successfully, so I think something with the way I am sending the body has to do with the error.
rest template doesn't support get request with body . for more details you can refer this article.
If you are on Java 11 I would suggest you to use java.net.HttpClient which will fulfill your need.

HttpMessageNotReadableException: Required request body is missing (Occasional) - SpringMVC Default Controller Request Mapping HTTP Method?

I have the following code which represents an Ajax POST request:
#RequestMapping("/participant/insertEvent")
public boolean insertEvent(Principal principal, #RequestBody String json, HttpServletRequest request) throws Exception {
//...
//return true or false
}
JS:
$.ajax({
type : "post",
dataType : "json",
url : '/app/participant/insertEvent',
data : JSON.stringify({'p1': p1, 'p2' : p2})
});
The app is deployed in Production and everything has been working with many users the whole week.
This morning I got the following production issue at this method (insertEvent):
org.springframework.http.converter.HttpMessageNotReadableException: Required request body is missing: public boolean
app.controller.participant.AjaxOperationsController.insertEvent(java.security.Principal,java.lang.String,javax.servlet.http.HttpServletRequest) throws java.lang.Exception at
org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor.readWithMessageConverters(RequestResponseBodyMethodProcessor.java:161) at org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor.resolveArgument(RequestResponseBodyMethodProcessor.java:130) at org.springframework.web.method.support.HandlerMethodArgumentResolverComposite.resolveArgument(HandlerMethodArgumentResolverComposite.java:124) at
org.springframework.web.method.support.InvocableHandlerMethod.getMethodArgumentValues(InvocableHandlerMethod.java:161) at ...
I'm wondering, is it because I didn't explicitly specify this is a method={RequestMethod.POST} ?
But if I don't specify an HTTP method, what is the default?
However, if this is the issue, then why does the app work 99% of the time, and not for that one user?
FYI, the error was caused by including in the JSON an un-encoded % (percent) special char coming from a TextArea value.

Spring post method "Required request body is missing"

#PostMapping(path="/login")
public ResponseEntity<User> loginUser(#RequestBody Map<String, String> userData) throws Exception {
return ResponseEntity.ok(userService.login(userData));
}
I have this method for the login in the UserController. The problem is when i try to make the post request for the login i get this error:
{
"timestamp": "2018-10-24T16:47:04.691+0000",
"status": 400,
"error": "Bad Request",
"message": "Required request body is missing: public org.springframework.http.ResponseEntity<org.scd.model.User> org.scd.controller.UserController.loginUser(java.util.Map<java.lang.String, java.lang.String>) throws java.lang.Exception",
"path": "/users/login"
}
You have to pass that as JSON in your body, if it's a POST request.
I had a similar issue, was getting this error in my Spring Boot service
HttpMessageNotReadableException: Required request body is missing:...
My issue was that, when I was making requests from Postman, the "Content-Length" header was unchecked, so service was not considering the request body.
This is happening because you are not passing a body to you server.
As can I see in your screenshot you are passing email and password as a ResquestParam.
To handle this values, you can do the following:
#PostMapping(path="/login")
public ResponseEntity<User> loginUser(#RequestParam("email") String email, #RequestParam("password") String password) {
//your imp
}
In order to accept an empty body you can use the required param in the RequestBody annotation:
#RequestBody(required = false)
But this will not solve your problem. Receiving as RequestParam will.
If you want to use RequestBody you should pass the email and password in the body.
You need to send data in Body as JSON
{ "email":"email#email.com", "password":"tuffCookie"}
If it's still not working, try adding additional information UTF-8 in Headers.
key : Content-Type
value : application/json; charset=utf-8
For my case, I must adding UTF-8 in Headers.
In my case it was poorly defined JSON that I sent to my REST service.
Attribute that was suppose to be an object, was in my case just string:
Changed from:
"client" = "",
to:
"client" = { ... },
In my case String did not add additional information about value in different format.

Spring + Angular: How to parse ResponseEntity in angular?

I'm using Spring Boot to create an API that needs to be consumed in Angular 4. Spring and Angular are on different ports.
The problem is that Spring's ResponseEntity raises an error in Angular.
#RequestMapping(value = "/{id}", method = RequestMethod.GET)
public ResponseEntity getFlow(#PathVariable int id) {
Flow flow = flowService.findById(id);
return new ResponseEntity(flow, HttpStatus.FOUND);
}
Now, I can perfectly use Postman to test the API and it works.
But when I make a request from Angular, it returns an error:
Strangely, it returns an error alongside the requested object.
Now, the cause of the problem is that the Spring Boot application returns a ResponseEntity and not a normal object (like String), and Angular doesn't know how to interpret it. If the controller returns just a Flow object, it works.
How can it be solved using ResponseEntity? Or, how else can I send the object alongside the HTTP status code?
Also, in #RequestMapping put produces = "application/json", and in get request in angular, add http options :
const httpOptions = {
headers: new HttpHeaders({
'Accept': 'application/json',
'Content-Type': 'application/json'
})
};
So your get request looks like this:
this.http.get(url, httpOptions)
As per the document mentioned here
https://docs.angularjs.org/api/ng/service/$http
A response status code between 200 and 299 is considered a success status and will result in the success callback being called. Any response status code outside of that range is considered an error status and will result in the error callback being called. Also, status codes less than -1 are normalized to zero. -1 usually means the request was aborted, e.g. using a config.timeout. Note that if the response is a redirect, XMLHttpRequest will transparently follow it, meaning that the outcome (success or error) will be determined by the final response status code.
As you are sending an instance of ResponseEntity(HttpStatus.Found) whose Http status code is 302 which doesnt fall under the success range thats why error callback is called.
Try returning the content like this
return new ResponseEntity(flow, HttpStatus.OK);

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