Use this policy to authenticate a client by delegating the authentication to an OAuth2 provider. If this policy is applied, it is used to authenticate any request that does not contain credentials for any other authentication policies (such as API Key). The client is redirected to the OAuth provider to start the authentication flow. Once the flow completes, and the access token is obtained, the policy uses it to perform one or more requests to get information about the user, such as the ID and assigned role. Finally, a session cookie is returned to the client, and the client is redirected back to the requested URL. Subsequent requests authenticate based on the session cookie instead of repeating the OAuth flow. This implementation is based on the authorization code flow from Okta.
The Generic OAuth2 API Policy also supports OAuth 1.0.
Policy Requirements
All Authentication policies require the Authorize By Role policy to authenticate the API caller correctly. For example, you can configure this policy to add the role “admin” to the client and then configure the Authorize By Role policy to authorize users with that role.
Users must enable cookies in their browser for this policy to work with OAuth providers.
Verified Providers
SnapLogic verified the following authentication providers for this policy:
This policy might work with other authentication providers not listed above but has not been tested and verified.
Policy Execution Order
The Generic OAuth2 policy executes after the other authentication policies, specifically those whose mechanisms are based on the client providing a token in the request, like the API Key or Callout Authenticator policies.
Expression Enabled Fields in API Policies
All expression enabled fields take expressions from the SnapLogic Expression Language and the API Policy Manager functions.
Parameter Name | Description | Default Value | Example |
|---|---|---|---|
Label | Required. The name for the API policy. | Generic OAuth2 | GitHub OAuth 2.0 Policy |
When this policy should be applied | An expression enabled field that determines the condition to be fulfilled for the API policy to execute. For example, if the value in this field is request.method == "POST", the API policy is executed only if the request method is a POST. | N/A | request.method == “POST” |
Login URL | Required. The OAuth2 provider’s login URL that starts the flow. | N/A | https://github.com/login/oauth/authorize |
Required Scopes | Required. The list of OAuth2 scopes required to get information about a user. See OAuth 2.0 Scopes for details. Click + to add scopes. | N/A | N/A |
Scope | The name of the OAuth2 scope. | N/A | user token session |
Access Token URL | Required. The OAuth2 provider’s access token URL. The response from this token URL will be stored in $token and can be referenced in User Info URL below. | N/A | https://github.com/login/oauth/access_token |
Client ID | Required. The ID of the application registered with the OAuth2 provider. | N/A | jdoe@beignet.com |
Client Secret | Required. The client secret for the application registered with the OAuth2 provider. | N/A | chocolatE |
Redirect URI | The URI of the Snaplex load-balancer appended with | N/A | https://groundplex.example.com/api/1/rest/oauth2/callback |
User Info URL #1-2 | These sections describe the HTTP GET requests this API policy should make to get information about a user. Limitation: The User Info Url field and settings do not support expressions that use the User Info URL #2 is optional. | N/A | N/A |
Target Path | The location to store the result of the request in the working object as a JSON-Path. If you leave this field blank, the URL is not called. | N/A | $user |
URL | The destination for the request. | N/A | https://idp.example.com/user https://api.github.com/user |
Query Parameters | The query parameters (name and value) to add into the URL. | N/A | N/A |
Headers | The headers (name and value) to include in the request. | N/A | Authorization |
Response Handler | Specifies how the request's response must be handled. | N/A |
|
Extract User Info | Required. Specifies how to extract information about the user from the working object. | N/A | N/A |
User ID Expression | Required. An expression that returns a string to be used as the user ID. | N/A | $user.email |
Roles Expression | Required. An expression that returns the list of roles this user is in. | N/A | $user.groups.map(group => group.name) |
Session: Time-To-Live in Seconds | Required. The number of seconds for which the session is active. | 86400 | 90000 |
OAuth State: Time-To-Live in Seconds | Required. The number of seconds for which the Oauth state is active. | 300 | 1000 |
Status | Specifies whether the API policy is enabled or disabled. | Enabled | Disabled |
Session Management
The OAuth2.0 API Policy might require consideration for active session management from an administrative point of view. A network issue or company policy might necessitate overriding the Time-to-Live settings. For this purpose, the following APIs allow a SnapLogic Org admin the ability to list session details and delete sessions as needed:
Purpose | API Call |
|---|---|
List all sessions | GET <Load_Balancer>/<JCC_Host>/api/1/rest/policy/session |
List a specific session | GET <Load_Balancer>/<JCC_Host>/api/1/rest/policy/session/<Session_Id> |
Delete a specific session | DEL <Load_Balancer>/<JCC_Host>/api/1/rest/policy/session/<Session_Id> |
Delete all sessions | DEL <Load_Balancer>/<JCC_Host>/api/1/rest/policy/session |
These APIs do not apply to the Time-To-Live settings in the Callout Authenticator API policy.