Access token request error

Access Token Error Response and Codes

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Access token is a type of token that is assigned by the authorization server. The authorization server issues the access token, if the access token request is valid and authorized. If the token access request is invalid or unauthorized, then the authorization server returns an error response.

For information on access token response, click this link

Error Response

The application can handle error response by sending them to redirect_uri.

The above URI contains the following parameters −

error − It specifies the error code if there is an invalid request, invalid client, invalid grant, or unauthorized client.

error_description − It defines the detail description of the error.

Following are the various error codes, which can occur when there are errors at the authorization endpoint.

This error occurs when there is a missing parameter that includes multiple credentials, unsupported parameter value.

The unauthorized client is not allowed to access the authorization grant type.

It specifies the user will have no access permission to files or subfolders.

It specifies the response type is not supported by the authorization server.

This error code is mainly used when 500 internal server cannot be returned to the client by using HTTP redirect.

It specifies that the server is unable to handle the request during overloading of server or during server maintenance.


OAuth 2.0 Errors

Authorization Response Error Codes

The authorization request to Hub is missing a required parameter, includes an invalid parameter value, includes a parameter more than once, or is otherwise malformed.

Check that all parameters are correct, that provided service_id exists, etc.

The client is not authorized to request an authorization code using this method: The redirect_URI of the service either is incorrect or not provided.

Make sure the provided redirectUri is correct and properly registered as one of the service’s redirect URIs.

Make sure your service provides at least one redirect_uri in Hub.

Hub does not support obtaining an authorization code using this method.

Try to change selected method of authorization.

The scope for which authorization is requested, does not match any registered service.

Make sure that request is correct.

Token Response Error Codes

The request is missing a required parameter, includes an unsupported parameter value (other than grant type), repeats a parameter, includes multiple credentials, utilizes more than one mechanism for authenticating the client, or is otherwise malformed.

Possible reasons: Authorization header in response is not of the Bearer type. Also, a parameter in the token request may be mulformed or missing.

Please check the response header. Then check if the request is correct.

Client authentication failed. For example, the client is unknown, no client authentication included, or authentication method is unsupported.

No service with the provided clientServiceId was found.

Authorization header was either of invalid format or not passed at all.

Refresh token was issued to another client service.

Refresh token is unknown.

Authorization code is unknown or is of invalid format.

The service secret is of invalid format.

Provided credentials of the service owner are invalid.

Requested scope does not match allowed by access token

Possible reasons: The service that requests authorization token is not verified.

Possible reasons: The authorization grant type is not supported by Hub.

Possible reasons: The scope to which you are requiring access token does not match any registered service.


Getting 500 http error on requesting access token OAuth2 Spring implementation

I have had help on fixing some of it but I am now having an error with authorization/permission while getting to /oauth/token. I am using Spring 4.0.5.RELEASE, Spring-Security 3.2.5.RELEASE and now Spring-Oauth2 2.0.4-build in place of 2.0.3.RELEASE.

The error is the following and I suspect I have something wrong either with the entry-point security or the oauth2:authorization-server.

Here is my authorization-server setup:

My userAuthenticationManager for password is:

where userService is an implementations of UserDetailsService.

For the pattern=»/oauth/token» I have access=»hasAuthority(‘OAUTH_CLIENT’)» to which I have defined on the user roles.I also have for session create-session=»stateless» and my authentication-manager-ref=»oauthClientAuthenticationManager». The oauthClientAuthenticationManager has as authentication-provider user-service-ref=»clientDetailsUserService» which is UserDetailsService implementation.I have entry-point-ref=»oauthAuthenticationEntryPoint» which is‌​t and not changing realm or TypeName.

I also have . clientAuthenticationEntryPoint is also a OAuth2AuthenticationEntryPoint but I have typeName set as Basic while the Realm reamins the default oauth.

Where clientCredentialsTokenEndpointFilter is‌​ntFilter with oauthClientAuthenticationManager as an authentication manager.

oauthAccessDeniedHandler = And webSecurityExpressionHandler =‌​ionHandler

Also my entry point is as follows:

Where the clientCredentialsTokenEndpointFilter is defined as:


Unable to access resource getting 401 Unauthorized error when request with successfully received access_token in spring boot Oauth 2.0

I am using spring boot Oauth2 security with grant_type = authorization_code flow.

I have successfully received response of code with oauth/authorize request and then passing this code in oauth/token request and also successfully received access_token in response.

Now, I want to call API with request mapping /admin/, it gives me error 401 Unauthorized. I have already provided access to this (/admin/) URL to any ROLE_ADMIN. But it ignores or not working.

I have given all my configuration here at last after screens.

When I request /admin/getData from postman, it will throw 401 Unauthorized error.

Here, I post all the screen shots step-by-step which I follows from postman, Please note as It is localhost, after getting code value with oauth/authorize, I have manually request for oauth/token from postman.

Step-1 Get New Access Token With Details

Step-2 Got Login Form for Authentication

Step-3 Received code in response

Step-4 Request oauth/token with same code and state value and Successfully received Access Token with other values

Step-5 Request Controller URL /admin/api/getData with Access Token pass as Bearer RECEIVED_ACCESS_TOKEN in header, Got 401 Unauthorized error

I am using ClientDetailService form database authentication. My complete code is as below.

Config for WebSecurityConfigurerAdapter

Config for ResourceServerConfigurerAdapter

Config for AuthorizationServerConfigurerAdapter

Config for ClientDetailsService

Config for UserDetailsService

Controller Code

Create Query for Client Details

Inset Query for Client Details With Value

User Details With Role IN DB Login Table

Please guide me what should I change to call API with authorized user.


Authorization Errors

During the authorization process, Google OAuth may return an error. Use this guide to troubleshoot the most common errors during this process.


To learn more about Google OAuth, see Using OAuth 2.0 to Access Google APIs.

Access denied

If you’ve set up your OAuth consent screen in GCP and the User type is External, you will get an «Access denied» error if you attempt to account link with a Google account that is not listed as a test user for your app. Make sure to add the Google account to the Test users section in your OAuth consent screen.

Partner Connections Manager (PCM) error

For help with any errors encountered when accessing PCM, see Partner Connections Manager (PCM) Error Reference.

Google hasn’t verified this app

The SDM API uses a restricted scope, which means that any apps that use this scope during authorization will be «unverified» unless OAuth API Verification is completed. When using Device Access for personal use, OAuth API Verification is not required.

You may see a «Google hasn’t verified this app» screen during the authorization process, which appears if the sdm.service scope is not configured on your OAuth consent screen in GCP. This screen can be bypassed by clicking the Advanced option and then clicking Go to Project Name (unsafe).

See Unverified app screen for more information.

Invalid client

When attempting to get an access or refresh token, you will get an «Invalid client» error if you provide an incorrect OAuth 2.0 Client Secret. Make sure the client_secret value you’re using in access and refresh token calls is the one for the OAuth 2.0 Client ID being used, as found in your GCP Credentials page.

Invalid request, missing required scope

After granting permissions in PCM, you might run into a «Invalid request» error of «Missing required parameter: scope». Make sure the scope value you’re using in authorization calls is the same as the one you set for the OAuth 2.0 Client, as found in your GCP Credentials page.

Redirect uri mismatch

When going through authorization, you might run into a «Redirect uri mismatch» error. Make sure the redirect_uri value you’re using in authorization calls is the same as the one you set for the OAuth 2.0 Client, as found in your GCP Credentials page.

Quick reference

Use this reference to quickly implement the steps to authorize a user and link their Google account .

To use this quick reference, edit each placeholder variable in the code samples with the values for your specific integration, and copy and paste as needed:


Direct the user to the PCM link in your app, replacing:

  1. project-id with your Device Access Project ID
  2. oauth2-client-id with the OAuth2 Client ID from your Google Cloud Platform (GCP) Credentials
  3. redirect-uri with a Redirect URI specified for the OAuth2 Client ID you are using
  4. scope with one of your available scopes

2 Auth Code

After granting permissions through PCM for your selected scope, the user should be redirected to your specified Redirect URI. The Authorization Code is returned as the code parameter in the URL, which should be in this format:

3 Access Token

Use the authorization code to retrieve an access token, that you can use to call the SDM API on behalf of the user.

Make a POST call to Google’s OAuth endpoint, replacing:

  1. oauth2-client-id and oauth2-client-secret with the OAuth2 Client ID and Client Secret from your GCP Credentials
  2. authorization-code with the code you received in the previous step
  3. redirect-uri with a Redirect URI specified for the OAuth2 Client ID you are using

Google OAuth returns two tokens, an access token and a refresh token.



4 API Call

Authorization is not complete until you make an API call with the user’s access token. This initial call finishes the authorization process and enables events.

You must use one of the API calls listed for the specified scope to complete authorization.



See the devices.list API reference for more information.

5 Refresh Token

Access tokens for the SDM API are only valid for 1 hour, as noted in the expires_in parameter returned by Google OAuth. If your access token expires, use the refresh token to get a new one.

Make a POST call to Google’s OAuth endpoint, replacing:

  1. oauth2-client-id and oauth2-client-secret with the OAuth2 Client ID and Client Secret from your GCP Credentials
  2. refresh-token with the code you received when initially getting the access token.

Google OAuth returns a new access token.



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