@Test( groups = "wso2.esb", description = "Test to check whether the Content-Type header is preserved when sending " + "requests to back end") public void testPreserveContentTypeHeader() throws Exception { String proxyServiceUrl = getProxyServiceURLHttp("PreserveContentTypeHeaderTest"); String requestPayload = "<soapenv:Envelope xmlns:soapenv='http://schemas.xmlsoap.org/soap/envelope/' >" + "<soapenv:Body>" + "</soapenv:Body></soapenv:Envelope> "; Map<String, String> headers = new HashMap<String, String>(); headers.put("Soapaction", "urn:mediate"); headers.put("Content-type", "application/xml"); HttpRequestUtil.doPost(new URL(proxyServiceUrl), requestPayload, headers); String wireResponse = wireMonitorServer.getCapturedMessage(); String[] wireResponseList = wireResponse.split(System.lineSeparator()); Assert.assertTrue(wireResponse.contains("Content-Type")); for (String line : wireResponseList) { if (line.contains("Content-Type")) { if (line.contains(";")) { Assert.fail("Content-Type header was modified - " + line); } } } // coming to this line means content type header is in expected state, hence passing the test Assert.assertTrue(true); }
@Test( groups = {"wso2.am"}, description = "test invocation of APi after expire the throttling block time.", dependsOnMethods = "testInvokingWithGoldTier") public void testInvokingAfterExpireThrottleExpireTime() throws InterruptedException, IOException { // wait millisecond to expire the throttling block Thread.sleep(THROTTLING_UNIT_TIME + THROTTLING_ADDITIONAL_WAIT_TIME); HttpResponse invokeResponse = HttpRequestUtil.doGet( gatewayWebAppUrl + API_CONTEXT + "/" + API_VERSION_1_0_0 + API_END_POINT_METHOD, requestHeadersGoldTier); assertEquals( invokeResponse.getResponseCode(), HTTP_RESPONSE_CODE_OK, "Response code mismatched, " + "Invocation fails after wait " + (THROTTLING_UNIT_TIME + THROTTLING_ADDITIONAL_WAIT_TIME) + "millisecond to expire the throttling block"); assertTrue( invokeResponse.getData().contains(API_RESPONSE_DATA), "Response data mismatched. " + "Invocation fails after wait " + (THROTTLING_UNIT_TIME + THROTTLING_ADDITIONAL_WAIT_TIME) + "millisecond to expire the throttling block"); }
@Test( groups = {"wso2.am"}, description = "Test invocation of API before change the api end point URL.") public void testAPIInvocationBeforeChangeTheEndPointURL() throws Exception { // Create and publish and subscribe API version 1.0.0 createPublishAndSubscribeToAPI( apiIdentifier, apiCreationRequestBean, apiPublisherClientUser1, apiStoreClientUser1, APPLICATION_NAME); // get access token String accessToken = generateApplicationKeys(apiStoreClientUser1, APPLICATION_NAME).getAccessToken(); // Create requestHeaders requestHeaders = new HashMap<String, String>(); requestHeaders.put("accept", "text/xml"); requestHeaders.put("Authorization", "Bearer " + accessToken); // Invoke old version HttpResponse oldVersionInvokeResponse = HttpRequestUtil.doGet( getAPIInvocationURLHttp(API_CONTEXT, API_VERSION_1_0_0) + "/" + API1_END_POINT_METHOD, requestHeaders); assertEquals( oldVersionInvokeResponse.getResponseCode(), HTTP_RESPONSE_CODE_OK, "Response code mismatched when invoke api before change the end point URL"); assertTrue( oldVersionInvokeResponse.getData().contains(API1_RESPONSE_DATA), "Response data mismatched when invoke API before change the end point URL" + " Response Data:" + oldVersionInvokeResponse.getData() + ". Expected Response Data: " + API1_RESPONSE_DATA); }
@Test( groups = {"wso2.am"}, description = "Test the invocation of API using new end point URL" + " after end point URL change", dependsOnMethods = "testEditEndPointURL") public void testInvokeAPIAfterChangeAPIEndPointURLWithNewEndPointURL() throws Exception { // Invoke new context HttpResponse oldVersionInvokeResponse = HttpRequestUtil.doGet( getAPIInvocationURLHttp(API_CONTEXT, API_VERSION_1_0_0), requestHeaders); assertEquals( oldVersionInvokeResponse.getResponseCode(), HTTP_RESPONSE_CODE_OK, "Response code mismatched when invoke API after change the end point URL"); assertTrue( oldVersionInvokeResponse.getData().contains(API2_RESPONSE_DATA), "Response data mismatched when invoke API after change the end point URL" + " Response Data:" + oldVersionInvokeResponse.getData() + ". Expected Response Data: " + API2_RESPONSE_DATA); assertFalse( oldVersionInvokeResponse.getData().contains(API1_RESPONSE_DATA), "Response data mismatched when invoke API after change the end point URL. It contains the" + " Old end point URL response data. Response Data:" + oldVersionInvokeResponse.getData() + ". Expected Response Data: " + API2_RESPONSE_DATA); }
@Test( groups = {"wso2.am"}, description = "Sending a Message Via REST to test uri template fix") public void testRESTURITemplate() throws Exception { // Before apply this patch uri template not recognize localhost:8280/stockquote/test/ // and localhost:8280/stockquote/test // maps to same resource. It will return correct response only if request hits // localhost:8280/stockquote/test // after fixing issue both will work. HttpResponse response = HttpRequestUtil.sendGetRequest(gatewayUrl + "stockquote/test/", null); assertEquals( response.getResponseCode(), Response.Status.OK.getStatusCode(), "Response code mismatch"); }
@SetEnvironment(executionEnvironments = {ExecutionEnvironment.STANDALONE}) @AfterClass(alwaysRun = true) public void testDeleteWebApplication() throws Exception { webAppAdminClient.deleteWebAppFile(webAppFileName); assertTrue( WebAppDeploymentUtil.isWebApplicationUnDeployed(backendURL, sessionCookie, webAppName), "Web Application unDeployment failed"); String webAppURLLocal = getWebAppURL(WebAppTypes.WEBAPPS) + "/" + webAppName; HttpResponse response = HttpRequestUtil.sendGetRequest(webAppURLLocal, null); Assert.assertEquals( response.getResponseCode(), 404, "Response code mismatch. Client request " + "got a response even after web app is undeployed"); }
@Test( groups = "wso2.as", description = "UnDeploying web application", dependsOnMethods = "testInvokeWebApp") public void testDeleteWebApplication() throws Exception { webAppAdminClient.deleteWebAppFile(webAppFileName, hostName); assertTrue( WebAppDeploymentUtil.isWebApplicationUnDeployed(backendURL, sessionCookie, webAppName), "Web Application unDeployment failed"); String webAppURLLocal = webAppURL + "/appServer-valied-deploymant-1.0.0"; HttpResponse response = HttpRequestUtil.sendGetRequest(webAppURLLocal, null); Assert.assertEquals( response.getResponseCode(), 302, "Response code mismatch. Client request " + "got a response even after web app is undeployed"); }
@SetEnvironment(executionEnvironments = {ExecutionEnvironment.STANDALONE}) @Test(groups = "wso2.as", description = "deploy webApp as tenant") public void testDeployWebAppAsTenant() throws Exception { super.init(TestUserMode.TENANT_USER); webAppAdminClient = new WebAppAdminClient(backendURL, sessionCookie); webAppAdminClient.warFileUplaoder( FrameworkPathUtil.getSystemResourceLocation() + "artifacts" + File.separator + "AS" + File.separator + "war" + File.separator + webAppFileName); assertTrue( WebAppDeploymentUtil.isWebApplicationDeployed(backendURL, sessionCookie, webAppName), "Web Application Deployment failed"); String webAppURLLocal = getWebAppURL(WebAppTypes.WEBAPPS) + "/" + webAppName + "/" + "Calendar.html"; HttpResponse response1 = HttpRequestUtil.sendGetRequest(webAppURLLocal, null); assertTrue(response1.getData().contains("<h1>GWT Calendar</h1>"), "Webapp invocation fail"); }
@Test( groups = {"wso2.am"}, description = "Test the API with endpoint security enabled with simple password" + " that only has characters and numbers") public void testInvokeGETResourceWithSecuredEndPointPasswordOnlyNumbersAndLetters() throws Exception { String endpointUsername = "******"; char[] endpointPassword = {'a', 'd', 'm', 'i', 'n', '1', '2', '3'}; byte[] userNamePasswordByteArray = (endpointUsername + ":" + String.valueOf(endpointPassword)).getBytes(); String encodedUserNamePassword = DatatypeConverter.printBase64Binary(userNamePasswordByteArray); APICreationRequestBean apiCreationRequestBean = new APICreationRequestBean( API_NAME, API_CONTEXT, API_VERSION_1_0_0, providerName, new URL(apiEndPointUrl)); apiCreationRequestBean.setTags(API_TAGS); apiCreationRequestBean.setDescription(API_DESCRIPTION); apiCreationRequestBean.setEndpointType("secured"); apiCreationRequestBean.setEpUsername(endpointUsername); apiCreationRequestBean.setEpPassword(String.valueOf(endpointPassword)); apiCreationRequestBean.setTier(TIER_UNLIMITED); apiCreationRequestBean.setTiersCollection(TIER_UNLIMITED); APIIdentifier apiIdentifier = new APIIdentifier(providerName, API_NAME, API_VERSION_1_0_0); apiIdentifier.setTier(TIER_UNLIMITED); createPublishAndSubscribeToAPI( apiIdentifier, apiCreationRequestBean, apiPublisherClientUser1, apiStoreClientUser1, APPLICATION_NAME); waitForAPIDeploymentSync( user.getUserName(), API_NAME, API_VERSION_1_0_0, APIMIntegrationConstants.IS_API_EXISTS); String accessToken = generateApplicationKeys(apiStoreClientUser1, APPLICATION_NAME).getAccessToken(); requestHeadersGet.put("Authorization", "Bearer " + accessToken); HttpResponse httpResponseGet = HttpRequestUtil.doGet( getAPIInvocationURLHttp(API_CONTEXT, API_VERSION_1_0_0) + "/sec", requestHeadersGet); assertEquals( httpResponseGet.getResponseCode(), HTTP_RESPONSE_CODE_OK, "Invocation fails for GET request for " + "endpoint type secured. username:"******" password:"******"Response Data not match for GET" + " request for endpoint type secured. Expected value :" + encodedUserNamePassword + " not contains in " + "response data:" + httpResponseGet.getData() + "username:"******" password:" + String.valueOf(endpointPassword)); }
@Test( groups = {"wso2.am"}, dataProvider = "SymbolCharacters", description = "Test the API with endpoint security" + " enabled with complex password", dependsOnMethods = "testInvokeGETResourceWithSecuredEndPointPasswordOnlyNumbersAndLetters") public void testInvokeGETResourceWithSecuredEndPointComplexPassword(String symbolicCharacter) throws Exception { String endpointUsername = "******"; char[] endpointPassword = { 'a', 'b', 'c', 'd', symbolicCharacter.charAt(0), 'e', 'f', 'g', 'h', 'i', 'j', 'k' }; byte[] userNamePasswordByteArray = (endpointUsername + ":" + String.valueOf(endpointPassword)).getBytes(); String encodedUserNamePassword = DatatypeConverter.printBase64Binary(userNamePasswordByteArray); APICreationRequestBean apiCreationRequestBean = new APICreationRequestBean( API_NAME, API_CONTEXT, API_VERSION_1_0_0, providerName, new URL(apiEndPointUrl)); apiCreationRequestBean.setTags(API_TAGS); apiCreationRequestBean.setDescription(API_DESCRIPTION); apiCreationRequestBean.setVisibility("public"); apiCreationRequestBean.setEndpointType("secured"); apiCreationRequestBean.setEpUsername(endpointUsername); apiCreationRequestBean.setEpPassword( URLEncoder.encode(String.valueOf(endpointPassword), "UTF-8")); // Update API with Edited information HttpResponse updateAPIHTTPResponse = apiPublisherClientUser1.updateAPI(apiCreationRequestBean); assertEquals( updateAPIHTTPResponse.getResponseCode(), HTTP_RESPONSE_CODE_OK, "Update APi with new Resource " + "information fail"); assertEquals( updateAPIHTTPResponse.getData(), "{\"error\" : false}", "Update APi with new Resource information fail"); // Send GET request waitForAPIDeploymentSync( user.getUserName(), API_NAME, API_VERSION_1_0_0, encodedUserNamePassword); HttpResponse httpResponseGet = HttpRequestUtil.doGet( getAPIInvocationURLHttp(API_CONTEXT, API_VERSION_1_0_0) + "/sec", requestHeadersGet); assertEquals( httpResponseGet.getResponseCode(), HTTP_RESPONSE_CODE_OK, "Invocation fails for GET request for " + "endpoint type secured. username:"******" password:"******"Response Data not match for GET" + " request for endpoint type secured. Expected value : " + encodedUserNamePassword + " not contains in " + "response data: " + httpResponseGet.getData() + " username:"******" password:" + String.valueOf(endpointPassword)); }
@Test( groups = {"wso2.am"}, description = "Pizzashack Test") public void testPizzashackApiSample() throws Exception { List<APIResourceBean> resourceBeanList = new ArrayList<APIResourceBean>(); APICreationRequestBean apiCreationRequestBean = new APICreationRequestBean( "PizzaAPI", "pizzashack", "1.0.0", "admin", new URL("http://localhost:9766/pizzashack-api-1.0.0/api/")); apiCreationRequestBean.setThumbUrl("/home/bhagya/WS/Pizza_Shack_Logo.jpeg"); apiCreationRequestBean.setDescription( "Pizza API:Allows to manage pizza orders (create, update, retrieve orders)"); apiCreationRequestBean.setTags("pizza, order, pizza-menu"); apiCreationRequestBean.setResourceCount("4"); resourceBeanList.add( new APIResourceBean("GET", "Application & Application User", "Unlimited", "/menu")); resourceBeanList.add( new APIResourceBean("POST", "Application & Application User", "Unlimited", "/order")); resourceBeanList.add( new APIResourceBean( "GET", "Application & Application User", "Unlimited", "/order/{orderid}")); resourceBeanList.add( new APIResourceBean("GET", "Application & Application User", "Unlimited", "/delivery")); apiCreationRequestBean.setResourceBeanList(resourceBeanList); apiCreationRequestBean.setTier("Unlimited"); apiCreationRequestBean.setTiersCollection("Unlimited"); apiPublisher.addAPI(apiCreationRequestBean); APILifeCycleStateRequest updateRequest = new APILifeCycleStateRequest( "PizzaAPI", publisherContext.getContextTenant().getContextUser().getUserName(), APILifeCycleState.PUBLISHED); apiPublisher.changeAPILifeCycleStatus(updateRequest); apiStore.addApplication("PizzaShack", "Unlimited", "", ""); SubscriptionRequest subscriptionRequest = new SubscriptionRequest( "PizzaAPI", storeContext.getContextTenant().getContextUser().getUserName()); subscriptionRequest.setApplicationName("PizzaShack"); apiStore.subscribe(subscriptionRequest); APPKeyRequestGenerator generateAppKeyRequest = new APPKeyRequestGenerator("PizzaShack"); String responseString = apiStore.generateApplicationKey(generateAppKeyRequest).getData(); JSONObject response = new JSONObject(responseString); String accessToken = response.getJSONObject("data").getJSONObject("key").get("accessToken").toString(); Map<String, String> requestHeaders = new HashMap<String, String>(); requestHeaders.put("Authorization", "Bearer " + accessToken); Thread.sleep(2000); HttpResponse pizzaShackResponse = HttpRequestUtil.doGet( gatewayUrlsMgt.getWebAppURLNhttp() + "pizzashack/1.0.0/menu", requestHeaders); assertEquals( pizzaShackResponse.getResponseCode(), Response.Status.OK.getStatusCode(), "Response code mismatched when api invocation"); System.out.println("My Response Code is " + pizzaShackResponse.getResponseCode()); assertTrue( pizzaShackResponse.getData().contains("BBQ Chicken Bacon"), "Response data mismatched when api invocation"); assertTrue( pizzaShackResponse.getData().contains("Grilled white chicken"), "Response data mismatched when api invocation"); assertTrue( pizzaShackResponse.getData().contains("Chicken Parmesan"), "Response data mismatched when api invocation"); assertTrue( pizzaShackResponse.getData().contains("Tuscan Six Cheese"), "Response data mismatched when api invocation"); assertTrue( pizzaShackResponse.getData().contains("Asiago and Fontina"), "Response data mismatched when api invocation"); }
@Test( groups = {"wso2.am"}, description = "test invocation of api under tier Gold.") public void testInvokingWithGoldTier() throws APIManagerIntegrationTestException, IOException { applicationNameGold = APPLICATION_NAME + TIER_GOLD; apiStoreClientUser1.addApplication(applicationNameGold, TIER_GOLD, "", ""); apiCreationRequestBean = new APICreationRequestBean( API_NAME, API_CONTEXT, API_VERSION_1_0_0, providerName, new URL(apiEndPointUrl)); apiCreationRequestBean.setTags(API_TAGS); apiCreationRequestBean.setDescription(API_DESCRIPTION); apiCreationRequestBean.setTier(TIER_GOLD); createPublishAndSubscribeToAPI( apiIdentifier, apiCreationRequestBean, apiPublisherClientUser1, apiStoreClientUser1, applicationNameGold); // get access token String accessToken = generateApplicationKeys(apiStoreClientUser1, applicationNameGold).getAccessToken(); // Create requestHeaders requestHeadersGoldTier = new HashMap<String, String>(); requestHeadersGoldTier.put("Authorization", "Bearer " + accessToken); requestHeadersGoldTier.put("accept", "text/xml"); long startTime = System.currentTimeMillis(); long currentTime; for (int invocationCount = 1; invocationCount <= GOLD_INVOCATION_LIMIT_PER_MIN; invocationCount++) { currentTime = System.currentTimeMillis(); // Invoke API HttpResponse invokeResponse = HttpRequestUtil.doGet( gatewayWebAppUrl + API_CONTEXT + "/" + API_VERSION_1_0_0 + API_END_POINT_METHOD, requestHeadersGoldTier); assertEquals( invokeResponse.getResponseCode(), HTTP_RESPONSE_CODE_OK, "Response code mismatched. Invocation attempt:" + invocationCount + " failed during :" + (currentTime - startTime) + " milliseconds under Gold API level tier"); assertTrue( invokeResponse.getData().contains(API_RESPONSE_DATA), "Response data mismatched. Invocation attempt:" + invocationCount + " failed during :" + (currentTime - startTime) + " milliseconds under Gold API level tier"); } currentTime = System.currentTimeMillis(); HttpResponse invokeResponse = HttpRequestUtil.doGet( gatewayWebAppUrl + API_CONTEXT + "/" + API_VERSION_1_0_0 + API_END_POINT_METHOD, requestHeadersGoldTier); assertEquals( invokeResponse.getResponseCode(), HTTP_RESPONSE_CODE_SERVICE_UNAVAILABLE, "Response code mismatched. Invocation attempt:" + (GOLD_INVOCATION_LIMIT_PER_MIN + 1) + " passed during :" + (currentTime - startTime) + " milliseconds under Gold API level tier"); assertTrue( invokeResponse.getData().contains(MESSAGE_THROTTLED_OUT), "Response data mismatched. Invocation attempt:" + (GOLD_INVOCATION_LIMIT_PER_MIN + 1) + " passed during :" + (currentTime - startTime) + " milliseconds under Gold API level tier"); }
@Test( groups = {"wso2.am"}, description = "test invocation of api under tier Silver.", dependsOnMethods = "testEditAPITierToSilver") public void testInvokingWithSilverTier() throws APIManagerIntegrationTestException, InterruptedException, IOException { applicationNameSilver = APPLICATION_NAME + TIER_SILVER; // create new application apiStoreClientUser1.addApplication(applicationNameSilver, TIER_GOLD, "", ""); apiIdentifier.setTier(TIER_SILVER); // Do a API Silver subscription. subscribeToAPI(apiIdentifier, applicationNameSilver, apiStoreClientUser1); // get access token String accessToken = generateApplicationKeys(apiStoreClientUser1, applicationNameSilver).getAccessToken(); // Create requestHeaders Map<String, String> requestHeadersSilverTier = new HashMap<String, String>(); requestHeadersSilverTier.put("accept", "text/xml"); requestHeadersSilverTier.put("Authorization", "Bearer " + accessToken); // millisecond to expire the throttling block Thread.sleep(THROTTLING_UNIT_TIME + THROTTLING_ADDITIONAL_WAIT_TIME); long startTime = System.currentTimeMillis(); long currentTime; for (int invocationCount = 1; invocationCount <= SILVER_INVOCATION_LIMIT_PER_MIN; invocationCount++) { currentTime = System.currentTimeMillis(); // Invoke API HttpResponse invokeResponse = HttpRequestUtil.doGet( gatewayWebAppUrl + API_CONTEXT + "/" + API_VERSION_1_0_0 + API_END_POINT_METHOD, requestHeadersSilverTier); assertEquals( invokeResponse.getResponseCode(), HTTP_RESPONSE_CODE_OK, "Response code mismatched. " + "Invocation attempt:" + invocationCount + " failed during :" + (currentTime - startTime) + " milliseconds under Silver API level tier"); assertTrue( invokeResponse.getData().contains(API_RESPONSE_DATA), "Response data mismatched." + " Invocation attempt:" + invocationCount + " failed during :" + (currentTime - startTime) + " milliseconds under Silver API level tier"); } currentTime = System.currentTimeMillis(); HttpResponse invokeResponse = HttpRequestUtil.doGet( gatewayWebAppUrl + API_CONTEXT + "/" + API_VERSION_1_0_0 + API_END_POINT_METHOD, requestHeadersSilverTier); assertEquals( invokeResponse.getResponseCode(), HTTP_RESPONSE_CODE_SERVICE_UNAVAILABLE, "Response code mismatched. Invocation attempt:" + (SILVER_INVOCATION_LIMIT_PER_MIN + 1) + " passed during :" + (currentTime - startTime) + " milliseconds under Silver API level tier"); assertTrue( invokeResponse.getData().contains(MESSAGE_THROTTLED_OUT), "Response data mismatched. Invocation attempt:" + (SILVER_INVOCATION_LIMIT_PER_MIN + 1) + " passed during :" + (currentTime - startTime) + " milliseconds under Silver API level tier"); }
@Test(groups = "wso2.am", description = "Check functionality of the default version API") public void testDefaultVersionAPI() throws Exception { // Login to the API Publisher apiPublisher.login(user.getUserName(), user.getPassword()); String apiName = "DefaultVersionAPI"; String apiVersion = "1.0.0"; String apiContext = "defaultversion"; String endpointUrl = getGatewayURLNhttp() + "response"; // Create the api creation request object APIRequest apiRequest = new APIRequest(apiName, apiContext, new URL(endpointUrl)); apiRequest.setDefault_version("default_version"); apiRequest.setDefault_version_checked("default_version"); apiRequest.setVersion(apiVersion); apiRequest.setTiersCollection("Unlimited"); apiRequest.setTier("Unlimited"); apiRequest.setProvider(provider); // Add the API using the API publisher. HttpResponse response = apiPublisher.addAPI(apiRequest); APILifeCycleStateRequest updateRequest = new APILifeCycleStateRequest(apiName, user.getUserName(), APILifeCycleState.PUBLISHED); // Publish the API response = apiPublisher.changeAPILifeCycleStatus(updateRequest); // Login to the API Store apiStore.login(user.getUserName(), user.getPassword()); // Add an Application in the Store. response = apiStore.addApplication("DefaultVersionAPP", "Unlimited", "", ""); verifyResponse(response); // Subscribe the API to the DefaultApplication SubscriptionRequest subscriptionRequest = new SubscriptionRequest(apiName, apiVersion, provider, "DefaultVersionAPP", "Unlimited"); response = apiStore.subscribe(subscriptionRequest); // Generate production token and invoke with that APPKeyRequestGenerator generateAppKeyRequest = new APPKeyRequestGenerator("DefaultVersionAPP"); String responseString = apiStore.generateApplicationKey(generateAppKeyRequest).getData(); JSONObject jsonResponse = new JSONObject(responseString); // Get the accessToken which was generated. String accessToken = jsonResponse.getJSONObject("data").getJSONObject("key").getString("accessToken"); String apiInvocationUrl = getAPIInvocationURLHttp(apiContext); // Going to access the API without the version in the request url. HttpResponse directResponse = HttpRequestUtil.doGet(endpointUrl, new HashMap<String, String>()); Map<String, String> headers = new HashMap<String, String>(); headers.put("Authorization", "Bearer " + accessToken); // Invoke the API HttpResponse httpResponse = HttpRequestUtil.doGet(apiInvocationUrl, headers); // Check if accessing the back-end directly and accessing it via the API yield the same // responses. assertEquals( httpResponse.getData(), directResponse.getData(), "Default version API test failed while " + "invoking the API."); }