Spring OAuth2 - Manually creating an access token in the token store

Question

I have a situation where I would like to create an access token myself (so not through the usual process). I have come up with something like this:

@Inject
p         


        

Answer 1

I based my solution on Mop So's answer but instead of using:

return tokenEndpoint.getAccessToken(principal, parameters);

I used:

tokenEndpoint.postAccessToken(principal, parameters);

Why? Because if you use tokenEndpoint.getAccessToken(principal, parameters) the endpoing will throw you a HttpRequestMethodNotSupportedException because it has not been called with a GET method. At least, this is what happened to me with spring-security-oauth2-2.0.13.RELEASE

public OAuth2AccessToken getAccessToken() throws HttpRequestMethodNotSupportedException {
    HashMap parameters = new HashMap<>();
    parameters.put("client_id", CLIENT_ID);
    parameters.put("client_secret", CLIENT_SECRET);
    parameters.put("grant_type", "client_credentials");

    ClientDetails clientDetails = clientDetailsStore.get(CLIENT_ID);

    // Create principal and auth token
    User userPrincipal = new User(CLIENT_ID, CLIENT_SECRET, true, true, true, true, clientDetails.getAuthorities());

    UsernamePasswordAuthenticationToken principal = new UsernamePasswordAuthenticationToken(userPrincipal, CLIENT_SECRET,
            clientDetails.getAuthorities());

    ResponseEntity accessToken = tokenEndpoint.postAccessToken(principal, parameters);

    return accessToken.getBody();
}