Do Google OAuth 2.0 Authorization Framework Support adding custom header to Token Header request?

[imben1109]

I am using Google OAuth 2.0 Authorization Framework to obtain Github Access Token. It throw the following exception.

Exception in thread "main" java.lang.IllegalArgumentException:
at com.google.api.client.json.JsonParser.parseValue(JsonParser.java:889)
at com.google.api.client.json.JsonParser.parse(JsonParser.java:382)
at com.google.api.client.json.JsonParser.parse(JsonParser.java:355)
at com.google.api.client.json.JsonObjectParser.parseAndClose(JsonObjectParser.java:87)
at com.google.api.client.json.JsonObjectParser.parseAndClose(JsonObjectParser.java:81)
at com.google.api.client.http.HttpResponse.parseAs(HttpResponse.java:459)
at com.google.api.client.auth.oauth2.TokenRequest.execute(TokenRequest.java:307)
at com.google.api.client.extensions.java6.auth.oauth2.AuthorizationCodeInstalledApp.authorize(AuthorizationCodeInstalledApp.java:82)
at com.techoffice.Appl.authorize(Appl.java:61)
at com.techoffice.Appl.main(Appl.java:68)
Caused by: java.lang.IllegalArgumentException: expected numeric type but got class com.google.api.client.auth.oauth2.TokenResponse
at com.google.api.client.json.JsonParser.parseValue(JsonParser.java:844)
... 9 more

The below would be my partial source code.

private static Credential authorize() throws IOException {

AuthorizationCodeFlow flow = new AuthorizationCodeFlow.Builder(BearerToken.authorizationHeaderAccessMethod(),
HTTP_TRANSPORT, JSON_FACTORY, new GenericUrl(TOKEN_SERVER_URL),
new ClientParametersAuthentication(clientId, clientSecret), clientId, AUTHORIZATION_SERVER_URL)
.setScopes(Arrays.asList(SCOPE)).setDataStoreFactory(DATA_STORE_FACTORY).build();
LocalServerReceiver receiver = new LocalServerReceiver.Builder().setHost(LOCALHOST).setPort(PORT).build();

return new AuthorizationCodeInstalledApp(flow, receiver).authorize("user");

}

I found the response of https://github.com/login/oauth/access_token would be in

access_token=e72e16c7e42f292c6912e7710c838347ae178b4a&scope=user%2Cgist&token_type=bearer
Google OAuth would support JSON Format. To make Github response in JSON format, it required to add Accept: application/json in header.

How can I make it support in Github?

[mattwhisenhunt]

@imben1109, have you found an answer already?

[imben1109]

@mattwhisenhunt . No. It seems that it does not support custom access token.

[sduskis]

I'm going to change this to a feature request.

[chingor13]

What you want to do is configure your HttpRequestInitializer to set the header on the request.

Something like:

HttpRequestInitializer requestInitializer = new HttpRequestInitializer() {
  @Override
  public void initialize(HttpRequest request) throws IOException {
    HttpHeaders headers = request.getHeaders();
    headers.put("Accept", "application/json");
    request.setHeaders(headers);
  }
};
AuthorizationCodeFlow flow = 
    new AuthorizationCodeFlow.Builder(...) // fix these parameters
        .setRequestInitializer(requestInitializer)
        .build();