working http client

http_client.bal

import ballerina.net.http;
import ballerina.io;

endpoint http:ServiceEndpoint passthruEP {
port:9090
};

endpoint http:ClientEndpoint httpClient {
targets: [{uri: "http://www.mocky.io"}]};

@http:ServiceConfig {
basePath:"/passthru"
}
service<http:Service> passthrough bind passthruEP{

@http:ResourceConfig {
    methods:["GET"],
    path:"/"
}
passthru (endpoint conn, http:Request request) {
                         var resp = httpClient-> get("/v2/5aa3a485310000461026e292", request);
    match resp {
            http:Response aa => {_ = conn->forward( aa);}
            http:HttpConnectorError err => io:println("invalid value");
        }

//_=conn->respondContinue();

}
}