Get OAuth V2 Info policy

What

Gets attributes of access tokens, refresh tokens, authorization codes, and client app attributes and populates variables with the values of those attributes.

This policy is useful when you need to configure dynamic, conditional behavior based on a value in a token or auth code. Whenever token validation occurs, variables are automatically populated with the values of token attributes. However, in cases where token validation has not occured, you can use this feature to explicity populate variables with the attribute values of a token. See also Customizing Tokens and Authorization Codes.

An access token that you pass to this policy must be valid or the policy will throw an invalid_access_token error.

Samples

The following samples use the Get OAuth V2 Info policy to retrieve information about various components of the OAuth2 workflow and then then access that information within code.

Access token

To get a reference to an access token, use the <AccessToken> element in your policy.

The following example expects to find the access token in a query parameter named "access_token" (the actual implementation details are up to you):

<GetOAuthV2Info name="MyTokenAttrsPolicy">
  <AccessToken ref="request.queryparam.access_token"></AccessToken>
</GetOAuthV2Info>

Given the access token, the policy looks up the token's profile and populates a set of variables with the profile data.

You can then access the variables using JavaScript or another means. The following example retrieves the scope(s) associated with the access token using JavaScript:

var scope = context.getVariable('oauthv2accesstoken.MyTokenAttrsPolicy.scope');

Note that to access those variables in code, you must prefix them with "oauthv2accesstoken". For a complete list of variables available via the access token, see Access token variables.

Auth code

To get authorization code attributes, use the <AuthorizationCode> element in your policy.

The following example expects to find the access token in a form parameter named "code" (the actual implementation details are up to you):

<GetOAuthV2Info name="MyAuthCodeAttrsPolicy">
  <AuthorizationCode ref="request.formparam.code"></AuthorizationCode>
</GetOAuthV2Info>

Given the auth code, the policy looks up the code's information and populates a set of variables with the auth code data.

You can then access the variables using JavaScript or another means. The following example retrieves a custom attribute associated with the authorization code using JavaScript:

var attr = context.getVariable(‘oauthv2authcode.MyAuthCodeAttrsPolicy.custom_attribute_name’);

Note that to access those variables in code, you must prefix them with "oauthv2authcode". For a complete list of variables available via the auth code, see Authorization code variables.

Refresh token

To get refresh token attributes, use the <RefreshToken> element in your policy.

The following example expects to find the access token in a query parameter named "refresh_token" (the actual implementation details are up to you):

<GetOAuthV2Info name="MyRefreshTokenAttrsPolicy">
  <RefreshToken ref="request.queryparam.refresh_token"/>
</GetOAuthV2Info>

Given the refresh token, the policy looks up the refresh token's information and populates a set of variables with the refresh token data.

You can then access those variables using JavaScript or another means. The following example retrieves a custom attribute associated with the refresh token using JavaScript:

var attr = context.getVariable(‘oauthv2refreshtoken.MyRefreshTokenAttrsPolicy.accesstoken.custom_attribute_name’);

Note that to access the variables in code, you must prefix them with "oauthv2refreshtoken". For a complete list of variables available via the refresh token, see Refresh token variables.

Static

In some rare cases you may need to get the profile of a statically configured token (one that is not accessible through a variable). You can do this by providing the value of the access token as an element.

<GetOAuthV2Info name="GetTokenAttributes">
  <AccessToken>shTUmeI1geSKin0TODcGLXBNe9vp</AccessToken>
</GetOAuthV2Info>

You can do this with all other token types (client ID, authorization code, and refresh tokens) as well.

Client ID

This example shows how to retrieve information about the client app using the client ID. Upon execution, the policy populates a set of variables with client information. In this case, the policy expects to find the client ID in a query parameter called client_id. Given the client ID, the policy looks up the client's profile and populates a set of variables with the profile data. The variables will be prefixed with oauthv2client.

<GetOAuthV2Info name="GetClientAttributes">
  <ClientId ref="request.queryparam.client_id"></ClientId>
</GetOAuthV2Info>

You can then access the variables using JavaScript or another means. For example, to get the developer app name and developer email associated with the client app using JavaScript:

context.getVariable("oauthv2client.GetClientAttributes.developer.email");
context.getVariable("oauthv2client.GetClientAttributes.developer.app.name");

Element Reference

The element reference describes the elements and attributes of the GetOAuthV2Info policy.

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<GetOAuthV2Info async="false" continueOnError="false" enabled="true" name="GetOAuthV2Info-1"
    <DisplayName>Get OAuth v2.0 Info 1</DisplayName>
    <AccessToken ref="variable"></AccessToken>
    <AuthorizationCode ref="variable"></AuthorizationCode>
    <ClientId ref="variable"></ClientId>
    <RefreshToken ref="variable"></RefreshToken>
</GetOAuthV2Info

<GetOAuthV2Info> attributes

<GetOAuthV2Info async="false" continueOnError="false" enabled="true" name="Get-OAuth-v20-Info-1">

The following table describes attributes that are common to all policy parent elements:

Attribute Description Default Presence
name

The internal name of the policy. The value of the name attribute can contain letters, numbers, spaces, hyphens, underscores, and periods. This value cannot exceed 255 characters.

Optionally, use the <DisplayName> element to label the policy in the management UI proxy editor with a different, natural-language name.

N/A Required
continueOnError

Set to false to return an error when a policy fails. This is expected behavior for most policies.

Set to true to have flow execution continue even after a policy fails.

false Optional
enabled

Set to true to enforce the policy.

Set to false to "turn off" the policy. The policy will not be enforced even if it remains attached to a flow.

true Optional
async

This attribute is deprecated.

false Deprecated

<DisplayName> element

Use in addition to the name attribute to label the policy in the management UI proxy editor with a different, natural-language name.

<DisplayName>Policy Display Name</DisplayName>
Default:

N/A

If you omit this element, the value of the policy's name attribute is used.

Presence: Optional
Type: String

<AccessToken> element

Retrieves the profile for an access token. You pass in a either a variable that contains the access token string or a literal token string (rare case). In this example, the access token is retrieved from a query parameter passed in a request. Use the <IgnoreAccessTokenStatus> element if you want to return information for a revoked or expired token.

<AccessToken ref="request.queryparam.access_token"></AccessToken>

Default:

request.formparam.access_token (a x-www-form-urlencoded and specified in the request body)

Presence:

Optional

Type: String
Valid values:

Either a flow variable containing an access token string, or a literal string.


<AuthorizationCode> element

Retrieves the profile for an authorization code. You pass in a either a variable that contains the auth code string or a literal token string (rare case). In this example, the auth code is retrieved from a query parameter passed in a request. For a list of variables populated by this operation, see "Flow variables".

<AuthorizationCode ref="request.queryparam.authorization_code"></AuthorizationCode>

Default:

request.formparam.access_token (a x-www-form-urlencoded and specified in the request body)

Presence:

Optional

Type: String
Valid values:

Either a flow variable containing an auth code string, or a literal string.

<ClientId> element

Retrieves information related to a client ID. In this example, the client ID is retrieved from a query parameter passed in a request. For a list of variables populated by this operation, see "Flow variables".

<ClientId ref="request.queryparam.client_id"></ClientId>

Default:

request.formparam.access_token (a x-www-form-urlencoded and specified in the request body)

Presence:

Optional

Type: String
Valid values: Either a flow variable containing an auth code string, or a literal string.

<IgnoreAccessTokenStatus> element

Returns the token information even if the token is expired or revoked. This element can only be used with access tokens. Information for other entities like refresh tokens and authorization codes are returned regardless of their status, by default.

<IgnoreAccessTokenStatus>true</IgnoreAccessTokenStatus>

Default:

false

Presence:

Optional

Type: Boolean
Valid values: true or false

<RefreshToken> element

Retrieves the profile for a refresh token. You pass in a either a variable that contains the refresh token string or a literal token string (rare case). In this example, the refresh token is retrieved from a query parameter passed in a request. For a list of variables populated by this operation, see "Flow variables".

<RefreshToken ref="request.queryparam.refresh_token"></RefreshToken>

Default:

request.formparam.access_token (a x-www-form-urlencoded and specified in the request body)

Presence:

Optional

Type: String
Valid values:

Either a flow variable containing an refresh token string, or a literal string.

Flow variables

The GetOAuthV2Info policy populates these variables, and is typically used in cases where you need the profile data, but where a grant or validation has not occurred yet. .

Client ID variables

These variables are populated when the ClientId element is set:

oauthv2client.{policy_name}.client_id
oauthv2client.{policy_name}.client_secret
oauthv2client.{policy_name}.redirection_uris // Note the spelling -- 'redirection_uris'
oauthv2client.{policy_name}.developer.email
oauthv2client.{policy_name}.developer.app.name
oauthv2client.{policy_name}.developer.id
oauthv2client.{policy_name}.{developer_app_custom_attribute_name}

Access token variables

These variables are populated when the AccessToken element is set:

oauthv2accesstoken.{policy_name}.developer.id
oauthv2accesstoken.{policy_name}.developer.app.name
oauthv2accesstoken.{policy_name}.developer.app.id
oauthv2accesstoken.{policy_name}.developer.email

oauthv2accesstoken.{policy_name}.organization_name
oauthv2accesstoken.{policy_name}.api_product_list

oauthv2accesstoken.{policy_name}.access_token
oauthv2accesstoken.{policy_name}.scope
oauthv2accesstoken.{policy_name}.expires_in //in seconds
oauthv2accesstoken.{policy_name}.status
oauthv2accesstoken.{policy_name}.client_id
oauthv2accesstoken.{policy_name}.accesstoken.{custom_attribute_name}

oauthv2accesstoken.{policy_name}.refresh_token
oauthv2accesstoken.{policy_name}.refresh_token_status
oauthv2accesstoken.{policy_name}.refresh_token_expires_in //in seconds

oauthv2accesstoken.{policy_name}.refresh_count
oauthv2accesstoken.{policy_name}.refresh_token_issued_at

Authorization code variables

These variables are populated when the AuthorizationCode element is set:

oauthv2authcode.{policy_name}.code
oauthv2authcode.{policy_name}.scope       
oauthv2authcode.{policy_name}.redirect_uri 
oauthv2authcode.{policy_name}.client_id
oauthv2authcode.{policy_name}.{auth_code_custom_attribute_name}

Refresh token variables

These variables are populated when the RefreshToken element is set:

oauthv2refreshtoken.{policy_name}.developer.id
oauthv2refreshtoken.{policy_name}.developer.app.name
oauthv2refreshtoken.{policy_name}.developer.app.id
oauthv2refreshtoken.{policy_name}.developer.email
oauthv2refreshtoken.{policy_name}.organization_name
oauthv2refreshtoken.{policy_name}.api_product_list

oauthv2refreshtoken.{policy_name}.access_token
oauthv2refreshtoken.{policy_name}.scope
oauthv2refreshtoken.{policy_name}.expires_in //in seconds

oauthv2refreshtoken.{policy_name}.status
oauthv2refreshtoken.{policy_name}.client_id
oauthv2refreshtoken.{policy_name}.accesstoken.{custom_attribute_name}

oauthv2refreshtoken.{policy_name}.refresh_token
oauthv2refreshtoken.{policy_name}.refresh_token_status
oauthv2refreshtoken.{policy_name}.refresh_token_expires_in //in seconds

oauthv2refreshtoken.{policy_name}.refresh_count
oauthv2refreshtoken.{policy_name}.refresh_token_issued_at

Schema

Each policy type is defined by an XML schema (.xsd). For reference, policy schemas are available on GitHub.

Error reference

This section describes the error messages and flow variables that are set when this policy triggers an error. This information is important to know if you are developing fault rules for a proxy. To learn more, see What you need to know about policy errors and Handling faults.

Error code prefix

steps.oauth.v2 (What's this?)

Runtime errors

These errors can occur when the policy executes. The error names shown below are the strings that are assigned to the fault.name variable when an error occurs. See the Fault variables section below for more details.

Error name HTTP status Cause
invalid_access_token 500 The access token sent to the policy is invalid.
access_token_expired 500 The access token sent to the policy is expired.
invalid_refresh_token 500 The refresh token sent to the policy is invalid.
refresh_token_expired 500 The refresh token sent to the policy is expired.
invalid_client-invalid_client_id 500 The client ID sent to the policy is invalid.
invalid_request-authorization_code_invalid 500 The authorization code sent to the policy is invalid.
authorization_code_expired 500 The authorization code sent to the policy is expired.
InvalidAPICallAsNoApiProductMatchFound 401 Please see this Apigee Community post for information about troubleshooting this error.

Deployment errors

Refer to the message reported in the UI for information about deployment errors.

Fault variables

These variables are set when this policy triggers an error at runtime.

Variables set (Learn more) Where Example
[prefix].[policy_name].failed The [prefix] is oauthV2.
The [policy_name] is the name of the policy that threw the error.
oauthV2.GetTokenInfo.failed = true
[prefix].[policy_name].fault.name The [prefix] is oauthV2.
The [policy_name] is the name of the policy that threw the error.

oauthV2.GetTokenInfo.fault.name = invalid_client-invalid_client_id

[prefix].[policy_name].fault.cause The [prefix] is oauthV2.
The [policy_name] is the name of the policy that threw the error.
oauthV2.GetTokenInfo.cause = ClientID is Invalid
fault.name = [error_name] [error_name] is the specific error name to check for as listed in the table above. fault.name = "invalid_client-invalid_client_id"

Example error response

{  
   "fault":{  
      "faultstring":"ClientId is Invalid",
      "detail":{  
         "errorcode":"keymanagement.service.invalid_client-invalid_client_id"
      }
   }
}

Example fault rule

<FaultRule name="OAuthV2 Faults">
    <Step>
        <Name>AM-InvalidClientIdResponse</Name>
    </Step>
    <Condition>(fault.name = "invalid_client-invalid_client_id")</Condition>
</FaultRule>

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