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https://issues.apache.org/jira/browse/OLTU-210?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16218249#comment-16218249
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Antonio Sanso commented on OLTU-210:
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[~prateek512] is this still an issue ?
> OAUTH_APPROVAL_ERROR_GENERIC : An unexpected error has occured during
> authentication. Please try again in salesforce integration ?
> ----------------------------------------------------------------------------------------------------------------------------------
>
> Key: OLTU-210
> URL: https://issues.apache.org/jira/browse/OLTU-210
> Project: Apache Oltu
> Issue Type: Bug
> Reporter: Prateek
>
> I am working on the Spring MVC + Apache Oltu +Salesforce Integration
> Example. I got the ClientId and Client Secrete from the salesforce Connected
> App. Now I am not sure on the below error.
> IMP: Why "authorizationCode" is comming null from salesforce? What all
> scopes can be set like setScope("full,refresh_token")??
> What API do we need to used like here we can used for GITHUB ?
> {code:java}
> GitHubTokenResponse oAuthResponse = oAuthClient.accessToken(request,
> GitHubTokenResponse.class);
> {code}
> What OAuthBearerClientRequest can be used like below ?
> {code:java}
> request= new
> OAuthBearerClientRequest("https://ap5.salesforce.com/5007F000000nxss";).
> setAccessToken(oAuthResponse.getAccessToken()).
> buildQueryMessage();
> {code}
> [OAUTH_APPROVAL_ERROR_GENERIC : An unexpected error has occured during
> authentication. Please try again.]
> I am using the below code:-
> {code:java}
> private static final String AUTHORIZATION_URL =
> "https://login.salesforce.com/services/oauth2/authorize";;
> private static final String CLIENT_ID =
> "3MVG9d8..z.hDcPJZPIzGJ5UZDqJOJY.3R6RBM8sJAF8XXXXXXXXXXXXXXXXXXXXXX";
> private static final String CLIENT_SECRET = "375066XXXXX";
> private static final String REDIRECT_URL =
> "http://localhost:8080/apache-oltu/salesforce/redirect";;
> //private static final String ACCESS_TOKEN_URL =
> "https://login.salesforce.com/services/oauth2/token";;
> private static final String ACCESS_TOKEN_URL =
> "https://ap5.salesforce.com/services/oauth2/token";;
> @RequestMapping(value = "/auth", method = RequestMethod.GET)
> public String authenticate() throws OAuthSystemException {
> OAuthClientRequest request = OAuthClientRequest
> .authorizationLocation(AUTHORIZATION_URL)
> .setClientId(CLIENT_ID)
> .setRedirectURI(REDIRECT_URL)
> .setResponseType("code")
> .setScope("full,refresh_token")
> .buildQueryMessage();
> return "redirect:" + request.getLocationUri();
> }
> @RequestMapping(value = "/redirect", method = RequestMethod.GET)
> public HttpEntity<String> redirect(
> @RequestParam(value = "token", required = false) String
> code) throws OAuthSystemException, OAuthProblemException {
> String value = "UNKNOWN";
> if (code != null && code.length() > 0) {
> String details = getAccessToken(code);
> value = details;
> }
> return new ResponseEntity<String>(value,HttpStatus.OK);
> }
> 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)
> .buildBodyMessage();
> //create OAuth client that uses custom http client under the
> hood
> OAuthClient oAuthClient = new OAuthClient(new
> URLConnectionClient());
> GitHubTokenResponse oAuthResponse =
> oAuthClient.accessToken(request, GitHubTokenResponse.class);
> System.out.println(oAuthResponse.getBody());
> request= new
> OAuthBearerClientRequest("https://ap5.salesforce.com/5007F000000nxss";).
> setAccessToken(oAuthResponse.getAccessToken()).
> buildQueryMessage();
> OAuthClient client = new OAuthClient(new URLConnectionClient());
> OAuthResourceResponse resourceResponse=
> client.resource(request, "GET", OAuthResourceResponse.class);
> {code}
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