Examples with ClientCredentialsTokenRequest com.google.api.client.auth.oauth2.ClientCredentialsTokenRequest used on opensource projects

Example 1 with ClientCredentialsTokenRequest

use of com.google.api.client.auth.oauth2.ClientCredentialsTokenRequest in project SORMAS-Project by hzi-braunschweig.

the class Oidc method requestAccessToken.

public static String requestAccessToken(String tokenEndpoint, String clientId, String clientSecret, List<String> scopes) throws Exception {
    ClientParametersAuthentication clientAuth = new ClientParametersAuthentication(clientId, clientSecret);
    try {
        LOGGER.info(String.format("Requesting access token for client %s at %s with scope: %s", clientId, tokenEndpoint, scopes));
        TokenResponse response = new ClientCredentialsTokenRequest(new NetHttpTransport(), new GsonFactory(), new GenericUrl(tokenEndpoint)).setClientAuthentication(clientAuth).setScopes(scopes).execute();
        String token = response.getAccessToken();
        if (token == null || token.isEmpty()) {
            LOGGER.error("Could not retrieve access token.");
            throw new Exception("Could not retrieve access token.");
        }
        return token;
    } catch (IOException e) {
        LOGGER.error("Unable to connect to Keycloak.", e);
        throw e;
    }
}