Retrofit with soap api - soap

I am trying to create Retrofit instance with the soap API. But I don't have an idea how to create. I have checked all the websites. I have got the code for creating the Retrofit instance with Rest API.
Also, I am having WSDL file. I am able to create required POJO class with that but I don't know how to use for a service call.
Kindly anyone please suggest some code or how to use that.
For Rest call, I am creating Retrofit instance like
#GET("users/{user}/repos")
Call<List<User>> listUsers(#Path("user") String user);

You should first make ApiClient class as follow:
public class ApiClient {
public static final String BASE_URL = "http://54.255.249.65/socialcommerce/rest/V1/";
private static Retrofit retrofit = null;
public static Retrofit getClient() {
HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
OkHttpClient client = new OkHttpClient.Builder().addInterceptor(interceptor).build();
if (retrofit == null) {
retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.client(client)
.addConverterFactory(GsonConverterFactory.create())
.build();
}
return retrofit;
}
}
In the controller class you should use the above class as follow:
ApiInterface apiInterface = ApiClientInstagram.getClient().create(ApiInterface.class);
Call<InstagramDetail> call = apiInterface.getInstagramDetail(token);
Log.d("tag", call.request().url().toString());
call.enqueue(new Callback<InstagramDetail>() {
#Override
public void onResponse(Call<InstagramDetail> call, Response<InstagramDetail> response) {
String code = String.valueOf(response.code());
if (code.equals("200")) {
response.body();
} else {
Toast.makeText(getApplicationContext(), "Backend Error", Toast.LENGTH_LONG).show();
}
}
#Override
public void onFailure(Call<InstagramDetail> call, Throwable t) {
Toast.makeText(getApplicationContext(), t.getMessage(), Toast.LENGTH_LONG).show();
}
});

Related

SSO between App and webview inside the app

My user signs into my app using Amazon Cognito using this plugin.
I also have a spring boot application ui, secured by cognito as well.
At some point in my app flow, i want to show a webview of the spring boot application to let the user configure additional stuff.
How do i do it without having the user sign in again?
Would it be bad practice if i created an endpoint called /login/{username}/{password} that uses the SecurityContextHolder to sign the user in and redirect to /home?
I finally got it working.
First i logged in, and made my code stop somewhere using the debugger, so i could look up the SecurityContextHolder.getContext().getAuthentication(). My Authentication object is of type OAuth2AuthenticationToken. I took a close look at it, and decided to replicate it.
I did so inside a custom AuthenticationManager, and returned my OAuth2AuthenticationToken in the overriden authenticate method.
CustomAuthenticationManager.java
#Component
public class CustomAuthenticationManager implements AuthenticationManager {
#Bean
protected PasswordEncoder passwordEncoder() {
return new BCryptPasswordEncoder();
}
#Override
public Authentication authenticate(Authentication authentication) throws AuthenticationException {
String token = ((Jwt)authentication.getPrincipal()).getTokenValue();
if (token == null)
throw new BadCredentialsException("Invalid token");
return convertAccessToken(token);
}
public OAuth2AuthenticationToken convertAccessToken(String accessToken){
Jwt decode = Tools.parseToken(accessToken);
List<GrantedAuthority> authorities = new ArrayList<>();
for (String s : ((String[]) decode.getClaims().get("cognito:groups"))) {
authorities.add(new SimpleGrantedAuthority("ROLE_" + s));
}
Map<String, Object> claims = decode.getClaims();
OidcIdToken oidcIdToken = new OidcIdToken(decode.getTokenValue(), decode.getIssuedAt(), decode.getExpiresAt(), claims);
DefaultOidcUser user = new DefaultOidcUser(authorities, oidcIdToken, "email");
return new OAuth2AuthenticationToken(user, authorities, "cognito");
}
}
Also i put this in a static Tools.java
public static Jwt parseToken(String accessToken) {
DecodedJWT decode = com.auth0.jwt.JWT.decode(accessToken);
HashMap<String, Object> headers = new HashMap<>();
headers.put("alg", decode.getHeaderClaim("alg").asString());
headers.put("kid", decode.getHeaderClaim("kid").asString());
HashMap<String, Object> claims = new HashMap<>();
decode.getClaims().forEach((k, v) -> {
switch(k){
case "cognito:roles":
case "cognito:groups":
claims.put(k, v.asArray(String.class));
break;
case "auth_time":
case "exp":
case "iat":
claims.put(k, v.asLong());
break;
default:
claims.put(k, v.asString());
break;
}
});
return new Jwt(accessToken, decode.getIssuedAt().toInstant(), decode.getExpiresAt().toInstant(), headers, claims);
}
Then i created two endpoints. One that is my "login page", and one that my filter goes to. So in my login page i take in an access token, store it in the sesion, then redirect to my other endpoint that pasess through the filter.
TokenLoginController.java
#Component
#RestController
public class TokenLoginController {
#GetMapping(value="/login/token/{token}")
#PermitAll
public void setSession(#PathVariable("token") String token, HttpSession session, HttpServletResponse response) throws IOException {
session.setAttribute("access_token", token);
response.sendRedirect("/login/token");
}
#GetMapping(value="/login/token")
#PermitAll
public void setSession() {
}
}
The filter extends AbstractAuthenticationProcessingFilter and looks up the access token from the session, creates the OAuth2AuthenticationToken, and authenticates with it.
StickyAuthenticationFilter.java
public class StickyAuthenticationFilter extends AbstractAuthenticationProcessingFilter {
public StickyAuthenticationFilter(String defaultFilterProcessesUrl, AuthenticationManager authenticationManager) {
super(defaultFilterProcessesUrl);
setAuthenticationManager(authenticationManager);
}
#Override
public Authentication attemptAuthentication(HttpServletRequest servletRequest, HttpServletResponse servletResponse) throws AuthenticationException, IOException, ServletException {
String access_token = (String)servletRequest.getSession().getAttribute("access_token");
if (access_token != null) {
JwtAuthenticationToken authRequest = new JwtAuthenticationToken(Tools.parseToken(access_token));
return getAuthenticationManager().authenticate(authRequest);
}
throw new RuntimeException("Invalid access token");
}
}
And finally, my SecurityConfig ties it all together like this:
#EnableWebSecurity
#Configuration
#EnableGlobalMethodSecurity(prePostEnabled = true)
public class SecurityConfig extends VaadinWebSecurity {
private final ClientRegistrationRepository clientRegistrationRepository;
public SecurityConfig(ClientRegistrationRepository clientRegistrationRepository) {
this.clientRegistrationRepository = clientRegistrationRepository;
}
#Override
protected void configure(HttpSecurity http) throws Exception {
http.csrf().disable().authorizeRequests().antMatchers("/login/token/*", "/login/token").permitAll().and()
.addFilterBefore(new StickyAuthenticationFilter("/login/token", new CustomAuthenticationManager()), BearerTokenAuthenticationFilter.class)
.oauth2ResourceServer(oauth2 -> oauth2.jwt())
.authorizeRequests()
.antMatchers("/user/**")
.authenticated();
super.configure(http);
setOAuth2LoginPage(http, "/oauth2/authorization/cognito");
http.oauth2Login(l -> l.userInfoEndpoint().userAuthoritiesMapper(userAuthoritiesMapper()));
}
#Override
public void configure(WebSecurity web) throws Exception {
// Customize your WebSecurity configuration.
super.configure(web);
}
#Bean
public GrantedAuthoritiesMapper userAuthoritiesMapper() {
return (authorities) -> {
Set<GrantedAuthority> mappedAuthorities = new HashSet<>();
Optional<OidcUserAuthority> awsAuthority = (Optional<OidcUserAuthority>) authorities.stream()
.filter(grantedAuthority -> "ROLE_USER".equals(grantedAuthority.getAuthority()))
.findFirst();
if (awsAuthority.isPresent()) {
if (awsAuthority.get().getAttributes().get("cognito:groups") != null) {
mappedAuthorities = ((JSONArray) awsAuthority.get().getAttributes().get("cognito:groups")).stream()
.map(role -> new SimpleGrantedAuthority("ROLE_" + role))
.collect(Collectors.toSet());
}
}
return mappedAuthorities;
};
}
}

How can we conditionally route to a different URL in Spring Cloud Gateway? Is there a reference sample?

Trying to change the exchange target URL conditionally. Is there a way this can be achieved in Spring Cloud Gateway?
To elaborate, upon inspecting a particular cookie value in the incoming request, I would like to route it to a different URL.
We do something similar with request headers here. We have an abstract filter that handles setting the uri correctly, you just have to determine the uri from the ServerWebExchange.
public class CookieToRequestUriGatewayFilterFactory extends
AbstractChangeRequestUriGatewayFilterFactory<AbstractGatewayFilterFactory.NameConfig> {
private final Logger log = LoggerFactory
.getLogger(RequestHeaderToRequestUriGatewayFilterFactory.class);
public RequestHeaderToRequestUriGatewayFilterFactory() {
super(NameConfig.class);
}
#Override
public List<String> shortcutFieldOrder() {
return Arrays.asList(NAME_KEY);
}
#Override
protected Optional<URI> determineRequestUri(ServerWebExchange exchange,
NameConfig config) {
String cookieValue = exchange.getRequest().getCookies().getFirst(config.getName());
String requestUrl = determineUrlFromCookie(cookieValue);
return Optional.ofNullable(requestUrl).map(url -> {
try {
return new URL(url).toURI();
}
catch (MalformedURLException | URISyntaxException e) {
log.info("Request url is invalid : url={}, error={}", requestUrl,
e.getMessage());
return null;
}
});
}
}
It would be up to you to implement determineUrlFromCookie().

CSRF token validation failed in Odata4j

I'm trying to post the entry to Odata service Url which is created in SAP ABAP backend. When i'm trying to send the data from java code to SAP ABAP system via Odata service, I'm getting CSRF Token validation error. Below is the code snippet for Odata Post service
ODataConsumer.Builder builder = ODataConsumers.newBuilder(URL_ODATASERVICE);
// LOGGER.info(TAG+"Authentication values are been set");
builder.setClientBehaviors(new BasicAuthenticationBehavior(USERNAME, PASSWORD), new SAPCSRFBehavior());
ODataConsumer consumer = builder.build();
OCreateRequest<OEntity> createRequest = consumer.createEntity("LogSet")
.properties(OProperties.string("TestplanId", "111")).properties(OProperties.string("ProcessId", "222"))
.properties(OProperties.string("Seqno", "33"));
// Execute the OData post
OEntity newMaterial = createRequest.execute();
And the SAPSCRBehaviour class will be
public class SAPCSRFBehaviour implements JerseyClientBehavior {
private static final String CSRF_HEADER = "X-CSRF-Token";
private static final String SAP_COOKIES = "SAP_SESSIONID";
private String xsrfCookieName;
private String xsrfCookieValue;
private String xsrfTokenValue;
#Override
public ODataClientRequest transform(ODataClientRequest request) {
if (request.getMethod().equals("GET")) {
request = request.header(CSRF_HEADER, "Fetch");
return request;
} else {
return request.header(CSRF_HEADER, xsrfTokenValue).header("Cookie", xsrfCookieName + "=" + xsrfCookieValue);
}
}
#Override
public void modifyWebResourceFilters(final Filterable arg0) {
}
#Override
public void modifyClientFilters(final Filterable client) {
client.addFilter(new ClientFilter() {
#Override
public ClientResponse handle(final ClientRequest clientRequest) throws ClientHandlerException {
ClientResponse response = getNext().handle(clientRequest);
List<NewCookie> cookies = response.getCookies();
for (NewCookie cookie : cookies) {
if (cookie.getName().startsWith(SAP_COOKIES)) {
xsrfCookieName = cookie.getName();
xsrfCookieValue = cookie.getValue();
break;
}
}
MultivaluedMap<String, String> responseHeaders = response.getHeaders();
xsrfTokenValue = responseHeaders.getFirst(CSRF_HEADER);
return response;
}
});
}
#Override
public void modify(final ClientConfig arg0) {
}}
Please suggest me the solution to avoid this issue
Best Regards,
Naveen

Spring Cloud - Getting Retry Working In RestTemplate?

I have been migrating an existing application over to Spring Cloud's service discovery, Ribbon load balancing, and circuit breakers. The application already makes extensive use of the RestTemplate and I have been able to successfully use the load balanced version of the template. However, I have been testing the situation where there are two instances of a service and I drop one of those instances out of operation. I would like the RestTemplate to failover to the next server. From the research I have done, it appears that the fail-over logic exists in the Feign client and when using Zuul. It appears that the LoadBalancedRest template does not have logic for fail-over. In diving into the code, it looks like the RibbonClientHttpRequestFactory is using the netflix RestClient (which appears to have logic for doing retries).
So where do I go from here to get this working?
I would prefer to not use the Feign client because I would have to sweep A LOT of code.
I had found this link that suggested using the #Retryable annotation along with #HystrixCommand but this seems like something that should be a part of the load balanced rest template.
I did some digging into the code for RibbonClientHttpRequestFactory.RibbonHttpRequest:
protected ClientHttpResponse executeInternal(HttpHeaders headers) throws IOException {
try {
addHeaders(headers);
if (outputStream != null) {
outputStream.close();
builder.entity(outputStream.toByteArray());
}
HttpRequest request = builder.build();
HttpResponse response = client.execute(request, config);
return new RibbonHttpResponse(response);
}
catch (Exception e) {
throw new IOException(e);
}
}
It appears that if I override this method and change it to use "client.executeWithLoadBalancer()" that I might be able to leverage the retry logic that is built into the RestClient? I guess I could create my own version of the RibbonClientHttpRequestFactory to do this?
Just looking for guidance on the best approach.
Thanks
To answer my own question:
Before I get into the details, a cautionary tale:
Eureka's self preservation mode sent me down a rabbit hole while testing the fail-over on my local machine. I recommend turning self preservation mode off while doing your testing. Because I was dropping nodes at a regular rate and then restarting (with a different instance ID using a random value), I tripped Eureka's self preservation mode. I ended up with many instances in Eureka that pointed to the same machine, same port. The fail-over was actually working but the next node that was chosen happened to be another dead instance. Very confusing at first!
I was able to get fail-over working with a modified version of RibbonClientHttpRequestFactory. Because RibbonAutoConfiguration creates a load balanced RestTemplate with this factory, rather then injecting this rest template, I create a new one with my modified version of the request factory:
protected RestTemplate restTemplate;
#Autowired
public void customizeRestTemplate(SpringClientFactory springClientFactory, LoadBalancerClient loadBalancerClient) {
restTemplate = new RestTemplate();
// Use a modified version of the http request factory that leverages the load balacing in netflix's RestClient.
RibbonRetryHttpRequestFactory lFactory = new RibbonRetryHttpRequestFactory(springClientFactory, loadBalancerClient);
restTemplate.setRequestFactory(lFactory);
}
The modified Request Factory is just a copy of RibbonClientHttpRequestFactory with two minor changes:
1) In createRequest, I removed the code that was selecting a server from the load balancer because the RestClient will do that for us.
2) In the inner class, RibbonHttpRequest, I changed executeInternal to call "executeWithLoadBalancer".
The full class:
#SuppressWarnings("deprecation")
public class RibbonRetryHttpRequestFactory implements ClientHttpRequestFactory {
private final SpringClientFactory clientFactory;
private LoadBalancerClient loadBalancer;
public RibbonRetryHttpRequestFactory(SpringClientFactory clientFactory, LoadBalancerClient loadBalancer) {
this.clientFactory = clientFactory;
this.loadBalancer = loadBalancer;
}
#Override
public ClientHttpRequest createRequest(URI originalUri, HttpMethod httpMethod) throws IOException {
String serviceId = originalUri.getHost();
IClientConfig clientConfig = clientFactory.getClientConfig(serviceId);
RestClient client = clientFactory.getClient(serviceId, RestClient.class);
HttpRequest.Verb verb = HttpRequest.Verb.valueOf(httpMethod.name());
return new RibbonHttpRequest(originalUri, verb, client, clientConfig);
}
public class RibbonHttpRequest extends AbstractClientHttpRequest {
private HttpRequest.Builder builder;
private URI uri;
private HttpRequest.Verb verb;
private RestClient client;
private IClientConfig config;
private ByteArrayOutputStream outputStream = null;
public RibbonHttpRequest(URI uri, HttpRequest.Verb verb, RestClient client, IClientConfig config) {
this.uri = uri;
this.verb = verb;
this.client = client;
this.config = config;
this.builder = HttpRequest.newBuilder().uri(uri).verb(verb);
}
#Override
public HttpMethod getMethod() {
return HttpMethod.valueOf(verb.name());
}
#Override
public URI getURI() {
return uri;
}
#Override
protected OutputStream getBodyInternal(HttpHeaders headers) throws IOException {
if (outputStream == null) {
outputStream = new ByteArrayOutputStream();
}
return outputStream;
}
#Override
protected ClientHttpResponse executeInternal(HttpHeaders headers) throws IOException {
try {
addHeaders(headers);
if (outputStream != null) {
outputStream.close();
builder.entity(outputStream.toByteArray());
}
HttpRequest request = builder.build();
HttpResponse response = client.executeWithLoadBalancer(request, config);
return new RibbonHttpResponse(response);
}
catch (Exception e) {
throw new IOException(e);
}
//TODO: fix stats, now that execute is not called
// use execute here so stats are collected
/*
return loadBalancer.execute(this.config.getClientName(), new LoadBalancerRequest<ClientHttpResponse>() {
#Override
public ClientHttpResponse apply(ServiceInstance instance) throws Exception {}
});
*/
}
private void addHeaders(HttpHeaders headers) {
for (String name : headers.keySet()) {
// apache http RequestContent pukes if there is a body and
// the dynamic headers are already present
if (!isDynamic(name) || outputStream == null) {
List<String> values = headers.get(name);
for (String value : values) {
builder.header(name, value);
}
}
}
}
private boolean isDynamic(String name) {
return name.equals("Content-Length") || name.equals("Transfer-Encoding");
}
}
public class RibbonHttpResponse extends AbstractClientHttpResponse {
private HttpResponse response;
private HttpHeaders httpHeaders;
public RibbonHttpResponse(HttpResponse response) {
this.response = response;
this.httpHeaders = new HttpHeaders();
List<Map.Entry<String, String>> headers = response.getHttpHeaders().getAllHeaders();
for (Map.Entry<String, String> header : headers) {
this.httpHeaders.add(header.getKey(), header.getValue());
}
}
#Override
public InputStream getBody() throws IOException {
return response.getInputStream();
}
#Override
public HttpHeaders getHeaders() {
return this.httpHeaders;
}
#Override
public int getRawStatusCode() throws IOException {
return response.getStatus();
}
#Override
public String getStatusText() throws IOException {
return HttpStatus.valueOf(response.getStatus()).name();
}
#Override
public void close() {
response.close();
}
}
}
I had the same problem but then, out of the box, everything was working (using a #LoadBalanced RestTemplate). I am using Finchley version of Spring Cloud, and I think my problem was that I was not explicity adding spring-retry in my pom configuration. I'll leave here my spring-retry related yml configuration (remember this only works with #LoadBalanced RestTemplate, Zuul of Feign):
spring:
# Ribbon retries on
cloud:
loadbalancer:
retry:
enabled: true
# Ribbon service config
my-service:
ribbon:
MaxAutoRetries: 3
MaxAutoRetriesNextServer: 1
OkToRetryOnAllOperations: true
retryableStatusCodes: 500, 502

Retrofit 2.0-beta-2 is adding literal quotes to MultiPart values

Went to upgrade to Retrofit 2.0 and running into this weird problem.
I have a method to log a user in
public interface ApiInterface {
#Multipart
#POST("user/login/")
Call<SessionToken> userLogin(#Part("username") String username, #Part("password") String password);
}
When I look at the key value POST params on the server side they print like this
username : "brian"
password : "password"
The same method using retrofit 1.9 the K:V pairs look like
username : brian
password : password
It's adding literal quotes to the POST variables
If I use any other rest client the variables print like the second way without the quotes.
Here is how I build the Retrofit instance with an interceptor
OkHttpClient client = new OkHttpClient();
client.interceptors().add(new Interceptor() {
#Override
public Response intercept(Chain chain) throws IOException {
Request original = chain.request();
// Customize the request
Request request = original.newBuilder()
.header("Accept", "application/json")
.header("Authorization", myPrefs.accessToken().getOr(""))
.method(original.method(), original.body())
.build();
Response response = chain.proceed(request);
// Customize or return the response
return response;
}
});
Ok2Curl.set(client);
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(apiEndpoint)
.addConverterFactory(GsonConverterFactory.create())
.client(client)
.build();
I imagine i'm doing something wrong with the converter but not sure what.
Has anyone else ran into this problem yet? I know its in beta but it's pretty widly used.
This is because it's running through the JSON converter.
Solution1:
use RequestBody instead of String
public interface ApiInterface {
#Multipart
#POST("user/login/")
Call<SessionToken> userLogin(#Part("username") RequestBody username, #Part("password") RequestBody password);
}
Build RequestBody:
RequestBody usernameBody = RequestBody.create(MediaType.parse("text/plain"), usernameStr);
RequestBody passwordBody = RequestBody.create(MediaType.parse("text/plain"), passwordStr);
Launch network operation:
retrofit.create(ApiInterface.class).userLogin(usernameBody , passwordBody).enqueue()....
Solution2: Create a custom ConverterFactory to dispose String part value.
For: Retrofit2 final release not beta. (com.squareup.retrofit2:retrofit:2.0.0)
Create your StringConverterFactory:
public class StringConverterFactory extends Converter.Factory {
private static final MediaType MEDIA_TYPE = MediaType.parse("text/plain");
public static StringConverterFactory create() {
return new StringConverterFactory();
}
#Override
public Converter<ResponseBody, ?> responseBodyConverter(Type type, Annotation[] annotations, Retrofit retrofit) {
if (String.class.equals(type)) {
return new Converter<ResponseBody, String>() {
#Override
public String convert(ResponseBody value) throws IOException {
return value.string();
}
};
}
return null;
}
#Override
public Converter<?, RequestBody> requestBodyConverter(Type type, Annotation[] parameterAnnotations, Annotation[] methodAnnotations, Retrofit retrofit) {
if(String.class.equals(type)) {
return new Converter<String, RequestBody>() {
#Override
public RequestBody convert(String value) throws IOException {
return RequestBody.create(MEDIA_TYPE, value);
}
};
}
return null;
}
}
Add to your retrofit instance:
retrofit = new Retrofit.Builder()
.baseUrl(SERVER_URL)
.client(client)
.addConverterFactory(StringConverterFactory.create())
.addConverterFactory(GsonConverterFactory.create())
.addCallAdapterFactory(RxJavaCallAdapterFactory.create())
.build();
Attention: StringConverterFactory should add before GsonConverterFactory!
then you can use String as part value directly.
You can find more information about this issue in https://github.com/square/retrofit/issues/1210
I have the same problem, and how it solved:
1) Add to build.gradle:
compile 'com.squareup.retrofit2:converter-scalars:2.1.0' // Remember to add the same version
2) Add one line here:
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(URL_BASE)
.addConverterFactory(ScalarsConverterFactory.create()) // this line
.addConverterFactory(GsonConverterFactory.create(gson))
.client(getUnsafeOkHttpClient())
.build();
What about to do in that way?
RequestBody caption = RequestBody.create(MediaType.parse("text/plain"), new String("caption"));
Here is how to resolve it,
Firstly:
return new Retrofit.Builder()
.baseUrl(Env.GetApiBaseUrl())
.addConverterFactory(new GsonStringConverterFactory())
.addConverterFactory(GsonConverterFactory.create(gson))
.client(getHttpClient())
.build();
Create a CustomConverter like this one, this is needed by Retrofit 2, unless some fix the "feature" added in v2.
public class GsonStringConverterFactory extends Converter.Factory {
private static final MediaType MEDIA_TYPE = MediaType.parse("text/plain");
#Override
public Converter<?, RequestBody> toRequestBody(Type type, Annotation[] annotations) {
if (String.class.equals(type))// || (type instanceof Class && ((Class<?>) type).isEnum()))
{
return new Converter<String, RequestBody>() {
#Override
public RequestBody convert(String value) throws IOException {
return RequestBody.create(MEDIA_TYPE, value);
}
};
}
return null;
}
}
I've found another one solution except those. Worked with Retrofit 2.1.0. (Rx adapter is optional here)
My retrofit interface looks like this:
#POST("/children/add")
Observable<Child> addChild(#Body RequestBody requestBody);
And in ApiManager I use it like this:
#Override
public Observable<Child> addChild(String firstName, String lastName, Long birthDate, #Nullable File passportPicture) {
MultipartBody.Builder builder = new MultipartBody.Builder()
.setType(MultipartBody.FORM)
.addFormDataPart("first_name", firstName)
.addFormDataPart("last_name", lastName)
.addFormDataPart("birth_date", birthDate + "");
//some nullable optional parameter
if (passportPicture != null) {
builder.addFormDataPart("certificate", passportPicture.getName(), RequestBody.create(MediaType.parse("image/*"), passportPicture));
}
return api.addChild(builder.build());
}
It is similar to Solution1 from Loyea but I think that it's little a bit more elegant.
If your UI is showing your responses with quotes, you can use getAsString instead of toString
I don't know if it is too late, but we can also send requests with RequestBody.
Example:
public interface ApiInterface {
#Multipart
#POST("user/login/")
Call<SessionToken> userLogin(#Part("username") String username, #Part("password") String password);
}
We can convert as below:
public interface ApiInterface {
#Multipart
#POST("user/login/")
Call<SessionToken> userLogin(#Part("username") RequestBody username, #Part("password") String password);
}