Potential Nil Pointer Dereference in Error Handling in edgex-ui-go/blob/napa/internal/handler/registercenter.go

[gnanavel-balamurugan]

Bug Report: Potential Nil Pointer Dereference in client.Do(req) Error Handling

Description

When an error occurs in client.Do(req), the returned resp variable may be nil. However, the current implementation in the error handling block directly accesses resp.StatusCode without verifying whether resp is non-nil. This can lead to a nil pointer dereference panic, causing the application to crash. The issue was detected during static code analysis (e.g., SonarQube).

https://github.com/edgexfoundry/edgex-ui-go/blob/main/internal/handler/registercenter.go

Affected Code

resp, err := client.Do(req)
if err != nil {
    return "", err, resp.StatusCode  // ❌ Potential nil dereference
}