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javatokenjwt

How to create valid keycloak token in Java?

I have secret, client id and user data. How to create valid keycloak token with full payload using jwt.io repo or any other in Java:

jti, exp, sub, aud, nbf, itp...

"allowed-origins": [ "http://localhost:8080", "http://localhost:4200" ], itp...

"realm_access": { "roles": [ "uma_authorization" ] }, itp...

Solution

  • I know this is old but maybe it helps someone. You can use the keycloak admin library to get a token from your keycloak.

    Code:

    Keycloak instance = Keycloak.getInstance(keycloakUrl, keycloakRealm, keycloakUsername, keycloakPassword, keycloakClientId, keycloakClientSecret);
TokenManager tokenmanager = instance.tokenManager();
String keycloakToken = tokenmanager.getAccessTokenString();

    POM import:

    <dependency>
    <groupId>org.keycloak</groupId>
    <artifactId>keycloak-admin-client</artifactId>
    <version>20.0.2</version>
</dependency>

    Alternatively you can request a token from the token endpoint from your keycloak.