How to send/set basic authorization i.e user and password to every request in openFeign client in spring boot with help of interceptor

How to send or set basic authorization, i.e., user and password, to every request in the openFeign client in Spring Boot with help for the interceptor
As I am trying to implement an openFeign client for an external service in spring boot, which always expects basic authentication in its request header, i.e., user ID and password,
I can send fixed values like the ones below with interceptor, but it is always fix values that picked from properties:

@Configuration
@EnableFeignClients(basePackages = {"com.abc.xyz.feign"})
public class CsdClientConfig {
    @Value("${cds-service-provider.userId}")
    private String userId;
    @Value("${cds-service-provider.password}")
    private String password;

    @Bean
    BasicAuthRequestInterceptor basicAuthRequestInterceptor() {
        return new BasicAuthRequestInterceptor(userId,password);
    }

I want to receive this auth info from a feign api caller for every api call and set it to header of service to access resources .i.e from postman

How can I accept it from the request header and pass it to feign client for further processing?

[! [enter image description here] 1]1

I found the way as below:
So we can use RequestInterceptor to inject headers from every request to the feign client on every request.

@Component
@AllArgsConstructor
public class FeignClientInterceptor implements RequestInterceptor {
    final HttpServletRequest request;
    @Override
    public void apply(RequestTemplate requestTemplate) {
        String reqAuthInput= request.getHeader("authorization");
        if (reqAuthInput!= null) {
            requestTemplate.header("authorization",reqAuthInput);
        }
    }
}

Are you sure this can get 'authorization' from per request?

String reqAuthInput= request.getHeader("authorization");

bacause using Feign for service calls, by default, each Feign client will use an independent Hystrix thread pool.

I just recently solved a similar problem, for reference:

import com.netflix.hystrix.strategy.concurrency.HystrixRequestContext;
import com.netflix.hystrix.strategy.concurrency.HystrixRequestVariableDefault;

import java.util.Map;

/**
 * @author chenwenshun@gmail.com on 2023/5/16
 */
public class ServiceContextHolder {

    private static final HystrixRequestVariableDefault<Map<String, String>> context = new HystrixRequestVariableDefault<>();

    public static Map<String, String> getServiceContext() {
        initServiceContext();
        return context.get();
    }

    public static void setServiceContext(Map<String, String> contexts) {
        initServiceContext();
        context.set(contexts);
    }

    private static void initServiceContext() {
        if (!HystrixRequestContext.isCurrentThreadInitialized()) {
            HystrixRequestContext.initializeContext();
        }
    }

    public static void destroy() {
        if (HystrixRequestContext.isCurrentThreadInitialized()) {
            HystrixRequestContext.getContextForCurrentThread().shutdown();
        }
    }
}

you can use setServiceContext put authorization and getServiceContext get authorization, destroy for after request complete.