401 UNAUTHORIZED from REST API in springboot

Camunda 7 Topics Discussion & Questions
1

Hi All,

We have a spring boot application implemented with camunda and using the REST APIs provided by default which was working fine with below URL.

URL: http://localhost:61022/rest/process-definition/key/createRequest/start

Now we are implementing OAUTH2 Security for one of the rest service being invoked by our camunda application for which below dependency was added and new RestTemplate was created.

		<dependency>
			<groupId>org.springframework.security.oauth</groupId>
			<artifactId>spring-security-oauth2</artifactId>
			<version>2.3.3.RELEASE</version>
		</dependency>

After adding this we are getting below 401 UNAUTHORIZED Exception for all the REST API calls made to camunda.

ERROR com.service.RestService.postJsonToCamunda - HttpClient Exception occured in RestService: 401 UNAUTHORIZED
at org.springframework.web.client.HttpClientErrorException.create(HttpClientErrorException.java:81)
at org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:123)
at org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:102)
at org.springframework.web.client.ResponseErrorHandler.handleError(ResponseErrorHandler.java:63)
at org.springframework.web.client.RestTemplate.handleResponse(RestTemplate.java:785)
at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:743)
at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:677)
at org.springframework.web.client.RestTemplate.exchange(RestTemplate.java:586)
at com.service.RestService.postJsonToCamunda(RestService.java:103)
at java.lang.Thread.run(Thread.java:748)

As far as I am aware there is Basic authentication available in camunda but this is disabled by default, I have tried changing URL as suggested in this post but no change.

Please help to resolve this.

Thanks
Manohar

2

Hi All,

Resolved it by adding the filter configuration as per post and configuring basic authentication using spring security.

However still I am not sure how was basic authentication enabled and 401 error was thrown by adding OAUTH2 spring dependency. Also How can this be disabled.

Thanks
Manohar

3