15 lines
1.3 KiB
Text
Executable file
15 lines
1.3 KiB
Text
Executable file
[[_user_federation]]
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== User Federation SPI
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The keycloak examples directory contains an example of a simple User Federation Provider backed by a simple properties file. See `providers/federation-provider`
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in the examples distribution. Most of how to create a federation provider is explained directly within the example code, but some information is here too.
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Writing a User Federation Provider starts by implementing the `UserFederationProvider` and `UserFederationProviderFactory` interfaces. Please see the Javadoc
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and example for complete details on how to do this.
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Some important methods of note: getUserByUsername() and getUserByEmail() require that you query your federated storage and if the user exists create and import
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the user into Keycloak storage. How much metadata you import is fully up to you. This import is done by invoking methods on the object returned
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`KeycloakSession.userStorage()` to add and import user information. The proxy() method will be called whenever Keycloak has found an imported UserModel.
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This allows the federation provider to proxy the UserModel which is useful if you want to support external storage updates on demand.
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For details on how to package and deploy a custom provider refer to the <<providers.adoc#providers,Service Provider Interfaces>> chapter.
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