Reading environment variables values through a REST endpoint in Spring-boot

Question

I am passing environment variables to run the spring boot application.

Now I want to expose an endpoint to get the value of all the environment variables getting used in my running application to debug some issue.

Is there any way to do this? Any help would be appreciated?

Answer 1

You need a endpoint like this

@GetMapping("env")
public Map<String, String> getEnv() {
    return System.getenv();
}

If you also want all the application properties try

@Autowired
AbstractEnvironment env;

@GetMapping("env")
public Map<String, Object> env() {
    Map<String, Object> map = new HashMap();
    for (PropertySource<?> propertySource : env.getPropertySources()) {
        if (propertySource instanceof MapPropertySource) {
            map.putAll(((MapPropertySource) propertySource).getSource());
        }
    }
    return map;
}