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javaspringextractdecodeaccess-token

Spring OAuth2 extract Principal from access token string

I have access token received in controller and I need to extract Principal from string access token. Without using Authentication in method argument since in this object will be different user. Simple decoding of token should help. Anyone know how to do that from just access token string? Example

@RequestMapping(value = "create", method = RequestMethod.POST)
public ResponseEntity create(Authentication authentication,@RequestParam("access_token") String accessToken) {
    //extract Principal from accessToken variable
}
Solution

  • After some time I manage to get Principal from access token string.

    @Autowired
private TokenStore tokenStore;

@RequestMapping(value = "create", method = RequestMethod.POST)
public ResponseEntity create(Authentication authentication,@RequestParam("access_token") String accessToken) {
    tokenStore.readAuthentication(accessToken).getPrincipal();
}