Estoy desarrollandoSpring MVC + Apache Oltu + Instagram ejemplo. En este ejemplo, creé una aplicación enhttps://www.instagram.com/developer/ y obtuve elClientId yClient_Secrete.

Uisng estoclientId yClient Secrete, llamando alPuntos finales de descanso de Instagram. Pero cuando llamo al REST EndPoint obtengo el siguiente error:

SEVERE: Servlet.service() for servlet [appServlet] in context with path [/apache-oltu] threw exception [Request processing failed; nested exception is OAuthProblemException{error='invalid_request', description='Missing parameters: access_token', uri='null', state='null', scope='null', redirectUri='null', responseStatus=0, parameters={}}] with root cause
OAuthProblemException{error='invalid_request', description='Missing parameters: access_token', uri='null', state='null', scope='null', redirectUri='null', responseStatus=0, parameters={}}
    at org.apache.oltu.oauth2.common.exception.OAuthProblemException.error(OAuthProblemException.java:59)
    at org.apache.oltu.oauth2.common.utils.OAuthUtils.handleOAuthProblemException(OAuthUtils.java:167)
    at org.apache.oltu.oauth2.common.utils.OAuthUtils.handleMissingParameters(OAuthUtils.java:185)
    at org.apache.oltu.oauth2.client.validator.OAuthClientValidator.validateRequiredParameters(OAuthClientValidator.java:90)
    at org.apache.oltu.oauth2.client.validator.OAuthClientValidator.validateParameters(OAuthClientValidator.java:53)
    at org.apache.oltu.oauth2.client.validator.OAuthClientValidator.validate(OAuthClientValidator.java:49)
    at org.apache.oltu.oauth2.client.response.OAuthClientResponse.validate(OAuthClientResponse.java:127)
    at org.apache.oltu.oauth2.client.response.OAuthClientResponse.init(OAuthClientResponse.java:96)
    at org.apache.oltu.oauth2.client.response.OAuthAccessTokenResponse.init(OAuthAccessTokenResponse.java:65)
    at org.apache.oltu.oauth2.client.response.OAuthClientResponse.init(OAuthClientResponse.java:101)
    at org.apache.oltu.oauth2.client.response.OAuthAccessTokenResponse.init(OAuthAccessTokenResponse.java:60)
    at org.apache.oltu.oauth2.client.response.OAuthClientResponse.init(OAuthClientResponse.java:120)
    at org.apache.oltu.oauth2.client.response.OAuthClientResponseFactory.createCustomResponse(OAuthClientResponseFactory.java:82)
    at org.apache.oltu.oauth2.client.URLConnectionClient.execute(URLConnectionClient.java:111)
    at org.apache.oltu.oauth2.client.OAuthClient.accessToken(OAuthClient.java:65)
    at org.apache.oltu.oauth2.client.OAuthClient.accessToken(OAuthClient.java:55)
    at com.apache.oltu.InstagramController.getAccessToken(InstagramController.java:76)
    at com.apache.oltu.InstagramController.redirect(InstagramController.java:56)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133)
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:635)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80)
    at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:624)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:799)
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1455)
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Unknown Source)

Los siguientes son los detalles que utilicé:

AUTHORIZATION_URL = "https://api.instagram.com/oauth/authorize";
ACCESS_TOKEN_URL = "https://api.instagram.com/oauth/access_token";

Los ámbitos que utilicé son:

public_content follower_list comments relationships likes basic

Cuando se ejecuta el código, obtengo el código de autorización con éxito, pero parece que falta el token. Por favor ayuda.

Estoy llamando al punto final de descanso desde la URL:https://www.instagram.com/developer/endpoints/users/

El código que usé a continuación para referencia:

private String getAccessToken(String authorizationCode) throws OAuthSystemException, OAuthProblemException {
        OAuthClientRequest request = OAuthClientRequest
                .tokenLocation(ACCESS_TOKEN_URL)
                .setGrantType(GrantType.AUTHORIZATION_CODE)
                .setClientId(CLIENT_ID)
                .setClientSecret(CLIENT_SECRET)
                .setRedirectURI(REDIRECT_URL)
                .setCode(authorizationCode)
                .buildQueryMessage();

        OAuthClient oAuthClient = new OAuthClient(new URLConnectionClient());

        GitHubTokenResponse oAuthResponse = oAuthClient.accessToken(request, GitHubTokenResponse.class);

        request= new OAuthBearerClientRequest("https://api.instagram.com/v1/users/self/").
                setAccessToken(oAuthResponse.getAccessToken()).
                buildQueryMessage();

        System.out.println("REQUEST_BODY : "+request.getBody());

        OAuthClient client = new OAuthClient(new URLConnectionClient());
        OAuthResourceResponse resourceResponse= client.resource(request, "GET", OAuthResourceResponse.class);

        if (resourceResponse.getResponseCode()==200){           
            logger.debug("HTTP OK");
            System.out.println(resourceResponse.getBody());
            return resourceResponse.getBody();
        }
        else{
            System.out.println("Could not access resource: " + resourceResponse.getResponseCode() 
            + " " + resourceResponse.getBody());
            return null;
        }
    } 
}

La siguiente es la URL que va ::

https://api.instagram.com/oauth/authorize? alcance = public_content + follower_list + comentarios + relaciones + likes + basic & response_type = code & redirect_uri = http% 3A% 2F% 2Flocalhost% 3A8080% 2Fapache-oltu% 2Finstagram% 2Fredirect & client_id = 40eb3e6047a249ddb7d9194765be9901

Si usé ResponseType = "token", obtengo el

{"error_type": "OAuthForbiddenException", "code": 403, "error_message": "Implicit authentication is disabled"}