Receive invalid_request while getAccessToken

[szkruk]

I'm trying to integrate with the Okta using oauth2-client. When i try to log in, I get error: invalid_request#0 /var/www/html/app/vendor/league/oauth2-client/src/Provider/AbstractProvider.php(628)

$accessToken = $oauthClient->getAccessToken('authorization_code', [ 'code' => $code, ]);

I assume $code is valid, because it's returned from Okta.

error trace:

invalid_request#0 /var/www/html/app/vendor/league/oauth2-client/src/Provider/AbstractProvider.php(628): League\OAuth2\Client\Provider\GenericProvider->checkResponse(GuzzleHttp\Psr7\Response, Array) #1 /var/www/html/app/vendor/league/oauth2-client/src/Provider/AbstractProvider.php(537): League\OAuth2\Client\Provider\AbstractProvider->getParsedResponse(GuzzleHttp\Psr7\Request) #2 /var/www/html/app/src/Service/Auth/OktaAuthenticator.php(133): League\OAuth2\Client\Provider\AbstractProvider->getAccessToken(League\OAuth2\Client\Grant\AuthorizationCode, Array)

invalid_request#0 /var/www/html/app/vendor/league/oauth2-client/src/Provider/AbstractProvider.php(628)](http://app/vendor/league/oauth2-client/src/Provider/AbstractProvider.php(628)): League\OAuth2\Client\Provider\GenericProvider->checkResponse(GuzzleHttp\Psr7\Response, Array)

1 /var/www/html/app/vendor/league/oauth2-client/src/Provider/AbstractProvider.php(537): League\OAuth2\Client\Provider\AbstractProvider->getParsedResponse(GuzzleHttp\Psr7\Request)

2 /var/www/html/app/src/Service/Auth/OktaAuthenticator.php(133): League\OAuth2\Client\Provider\AbstractProvider->getAccessToken(League\OAuth2\Client\Grant\AuthorizationCode, Array)

[plierschpl]

Maybe is your OpenID Provider hosted with https and your OpenID Client with http This was my fail... the client and the server must be running with HTTPS or all with HTTP without redirects to HTTPS