Set Customize Response for Reactive Web Service using Spring Boot and MongoDB as backend - spring

I am developing reactive-spring-boot web service and also using reactive-mongodb to store data. I want to return my customize response for API. example as below:
[
{
"result": [
{
"code": "",
"data": "",
"error": ""
}
]
}
Sample Method:
#PostMapping(value="/addEmployee")
public Mono<Response> addEmployeeDetails(Employee employee){
Response response = new Response();
if(employee.getEmpID() == null){
return response(getResponse());
}
Repository.save(employee);
return response(getResponse());
}
As you see in the code I have response() method which builds the required response.But it mono gives default response as below:
{
"timestamp": "2018-09-29T16:23:21.287+0000",
"status": 500,
"error": "Internal Server Error",
"message": "Internal Server Error",
"path": "/employee"
}
I am not able to set my own status code and error message.

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AWS Appsync subscription with postman - No Protocol Error

I am using Postman to connect AWS Appsync subscription as per : https://docs.aws.amazon.com/appsync/latest/devguide/real-time-websocket-client.html
with the below config:
{ "payload": { "errors": [ { "message": "NoProtocolError", "errorCode": 400 } ] }, "type": "connection_error" }
The problem occurs due to a missing header:-
Sec-WebSocket-Protocol = graphql-ws
if you get this error in unity use this way;
using System.Net.WebSockets;
var webSocket = new ClientWebSocket();
webSocket.Options.UseDefaultCredentials = false;
webSocket.Options.AddSubProtocol("graphql-ws");

How can we catch unauthorized exception which been thrown by quarkus

I am facing this problem but don't know how to achieve it.
I have a graphql endpoint to fetch list of user, it already enabled authentication check.
Basically, when I send a request fetchUsers without authorization header it will throw exception or status code to let the user know, but currently, it just response
{
"errors": [
{
"message": null,
"locations": [
{
"line": 2,
"column": 3
}
],
"path": [
"fetchUsers"
],
"extensions": {
"classification": "DataFetchingException"
}
}
],
"data": {
"fetchUsers": null
}
}
And in the backend server, there have some exception throw:
SRGQL012000: Data Fetching Error: io.quarkus.security.UnauthorizedException
at io.quarkus.security.runtime.interceptor.check.AuthenticatedCheck.apply(AuthenticatedCheck.java:28)
at io.quarkus.security.runtime.interceptor.SecurityConstrainer.check(SecurityConstrainer.java:28)
at io.quarkus.security.runtime.interceptor.SecurityConstrainer_Subclass.check$$superforward1(SecurityConstrainer_Subclass.zig:100)
at io.quarkus.security.runtime.interceptor.SecurityConstrainer_Subclass$$function$$1.apply(SecurityConstrainer_Subclass$$function$$1.zig:41)
at io.quarkus.arc.impl.AroundInvokeInvocationContext.proceed(AroundInvokeInvocationContext.java:54)
at io.quarkus.arc.runtime.devconsole.InvocationInterceptor.proceed(InvocationInterceptor.java:62)
at io.quarkus.arc.runtime.devconsole.InvocationInterceptor.monitor(InvocationInterceptor.java:49)
at io.quarkus.arc.runtime.devconsole.InvocationInterceptor_Bean.intercept(InvocationInterceptor_Bean.zig:521)
Is there any way to catch this Unauthorized exception and custom it, to response 401 and the error message that we want to response.

How to set message for error reponse status in Spring MVC?

I have a spring mvc handler like this:
#PostMapping("jwtToken")
fun jwtToken(#RequestBody body: JWTToken)
{
val token = body.token
if(token.isNullOrBlank())
throw ResponseStatusException(HttpStatus.UNAUTHORIZED, "Empty token")
}
If i send it an incorrect input, that triggers the exception, i get a reponse body like this:
{
"timestamp": "2020-10-30T03:41:20.305+00:00",
"status": 401,
"error": "Unauthorized",
"message": "",
"path": "/auth/jwtToken"
}
Why is the 'message' field empty in the response when i did assign a message to the exception? How do i set the message field
It might be related to the updated behaviour of the Spring Boot.
https://github.com/spring-projects/spring-boot/wiki/Spring-Boot-2.3-Release-Notes#changes-to-the-default-error-pages-content
server.error.include-message=always
in .properties should do the trick but I prefer to use my own extended classes like this:
class CustomException(message: String): Exception(message) { ... }

How to handle Exception and return proper HTTP code in Spring webflux?

I have a method which gives response using Mono.fromfuture(result) and which throws CustomException with 400 as status.
Now in my service class, when I call that method, the error and code I am throwing there is not getting propagated to my client(postman). Only the message is what I am seeing.
I am getting this below format: -
{
"timestamp": "2019-02-01T11:13:32.748+0000",
"path": "/some_url",
"status": 500,
"error": "Internal Server Error",
"message": "Unable to fetch Response"
}
Expectation (what I want to achieve) : -
{
"timestamp": "2019-02-01T11:13:32.748+0000",
"path": "/some_url",
"status": 400, // (my own status)
"error": "INVALID_ARGUMENT", // (my own error)
"message": "Unable to fetch Response"
}
My Code:-
public Mono<ResponseObject> fetchResponse(arg) {
return Mono.just(somedata which will give exception)
.flatMap(k -> callExternalService(k))
.onErrorMap(e -> Mono.error(
new BusinessException("Unable to fetch Response", e))
*/* e here is giving :-
"code" : 400,
"message" : "Request contains an invalid argument.",
"status" : "INVALID_ARGUMENT" */*
}
Have you looked at the documentation of the Response class?
You can create a Response of your own, using the static methods in the doc, and send it, instead of Mono.error, in the onErrorMap.
You have to return something like below:
ServerResponse.ok().contentType(MediaType.APPLICATION_JSON).body(klass, Klass.class);
ServerResponse.status(status).build();//read doc and set for yourself
You can also check this link.

Google APi Bad Request

i try to implement Passes service of Google Api in our website but we always have error 400 problem
we follow this documentation
Giftcardclass: insert
i use postman for test
POST https://www.googleapis.com/walletobjects/v1/giftCardClass
Request body
{
"kind":"walletobjects#loyaltyObject",
"id":"test2.test",
"classId":"test.test",
"version":12,
"state":"active",
"issuername":"dsadasdasdas",
"barcode":{
"kind":"walletobjects#barcode",
"type":"ean13",
"value":"aaaa",
"alternateText":"aaaa"
}
}
jSon response
{ "error": {
"errors": [
{
"domain": "global",
"reason": "invalidArgument",
"message": "Bad Request"
}
],
"code": 400,
"message": "Bad Request" }
}
from the documentation seems that only id,issuerstate and reviewStatus are required.
Looks like your ids are formatted wrongly, it should be issuer_id.unique_id. See https://developers.google.com/pay/passes/rest/v1/giftcardclass#GiftCardClass.FIELDS.id for reference.

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