Jira API Authentication Issue in Spring Boot

Other Questions Jira
1

Using Postman, Jira authentication succeeds. In our Spring Boot setup, API authentication returns a 401 error. Below is a concise code sample demonstrating our header setup:

public class JiraConnector {
    private String host = "company.com";
    private RestTemplate client;
    private HttpHeaders headers;

    public JiraConnector() {
        client = new RestTemplate();
        headers = new HttpHeaders();
        headers.add("Content-Type", "application/json");
        String authToken = "Basic " + Base64.getEncoder().encodeToString("user123:pass456".getBytes());
        headers.add("Authorization", authToken);
    }

    public String retrieveIssue(String issueId) {
        HttpEntity<String> request = new HttpEntity<>("", headers);
        ResponseEntity<String> result = client.exchange(host + "/rest/api/2/issue/" + issueId, HttpMethod.GET, request, String.class);
        return result.getBody();
    }
}
2

hey, try checking if your auth token is generated correctly. might be a typo in your endpoint too. sometimes a missing http:// can cause authntication issues. good luck!

3

In my experience integrating the Jira API with Spring Boot, a few subtle differences may lead to a 401 error that don’t occur in Postman. I encountered a similar issue where logging the exact HTTP request revealed that the client was sending a slightly different payload due to encoding variations. Examining the lower-level HTTP logging helped identify that the host URL was constructed differently at runtime, which inadvertently omitted necessary protocol details. Verifying the full and final URL along with checking any environmental differences between Postman and the Spring Boot setup ultimately led to resolving the authentication issue.

4

I faced a similar challenge while integrating the Jira API with Spring Boot. My debugging process revealed that the issue wasn’t the way the token was generated, but rather subtle differences in how the URL was constructed at runtime. I eventually discovered that my code was occasionally omitting the protocol part in the host URL, which led to misrouted requests. In my case, ensuring that the HttpHeaders were freshly built for each request prevented stale settings, enabling the proper transmission of the token. Detailed HTTP logging was key in pinpointing this oversight.