src/Oauth2Client.php
protected function returnHandlers()
    {
        // Create a handler stack that has all of the default middlewares attached
        $handler = HandlerStack::create();

        //Add the Authorization header to requests.
        $handler->push(Middleware::mapRequest(function (RequestInterface $request) {
            if ($this->getConfig('auth') == 'oauth2') {
                $token = $this->getAccessToken();

                if ($token !== null) {
                    $request = $request->withHeader('Authorization', 'Bearer '.$token->getToken());

                    return $request;
                }
            }

            return $request;
        }), 'add_oauth_header');

        $handler->before('add_oauth_header', $this->retry_modify_request(function ($retries, RequestInterface $request, ResponseInterface $response = null, $error = null) {
            if ($retries > 0) {
                return false;
            }
            if ($response instanceof ResponseInterface) {
                if (in_array($response->getStatusCode(), [400, 401])) {
                    return true;
                }
            }

            return false;
        },
            function (RequestInterface $request, ResponseInterface $response) {
                if ($response instanceof ResponseInterface) {
                    if (in_array($response->getStatusCode(), [400, 401])) {
                        $token = $this->acquireAccessToken();
                        $this->setAccessToken($token, 'Bearer');

                        $modify['set_headers']['Authorization'] = 'Bearer '.$token->getToken();

                        return Psr7\modify_request($request, $modify);
                    }
                }

                return $request;
            }
        ));

        return $handler;
    }
protected function returnHandlers()
    {
        // Create a handler stack that has all of the default middlewares attached
        $handler = HandlerStack::create();

        //Add the Authorization header to requests.
        $handler->push(Middleware::mapRequest(function (RequestInterface $request) {
            if ($this->getConfig('auth') == 'oauth2') {
                $token = $this->getAccessToken();

                if ($token !== null) {
                    $request = $request->withHeader('Authorization', 'Bearer '.$token->getToken());

                    return $request;
                }
            }

            return $request;
        }), 'add_oauth_header');

        $handler->before('add_oauth_header', $this->retry_modify_request(function ($retries, RequestInterface $request, ResponseInterface $response = null, $error = null) {
            if ($retries > 0) {
                return false;
            }
            if ($response instanceof ResponseInterface) {
                if (in_array($response->getStatusCode(), [400, 401])) {
                    return true;
                }
            }

            return false;
        },
            function (RequestInterface $request, ResponseInterface $response) {
                if ($response instanceof ResponseInterface) {
                    if (in_array($response->getStatusCode(), [400, 401])) {
                        $token = $this->acquireAccessToken();
                        $this->setAccessToken($token, 'Bearer');

                        $modify['set_headers']['Authorization'] = 'Bearer '.$token->getToken();

                        return Psr7\modify_request($request, $modify);
                    }
                }

                return $request;
            }
        ));

        return $handler;
    }
protected function returnHandlers ( ) { // Create a handler stack that has all of the default middlewares attached $ handler = HandlerStack :: create ( ) ; //Add the Authorization header to requests. $ handler -> push ( Middleware :: mapRequest ( function ( RequestInterface $ request ) { if ( $ this -> getConfig ( 'auth' ) == 'oauth2' ) { $ token = $ this -> getAccessToken ( ) ; if ( $ token !== null ) { $ request = $ request -> withHeader ( 'Authorization' , 'Bearer ' . $ token -> getToken ( ) ) ; return $ request ; } } return $ request ; } ) , 'add_oauth_header' ) ; $ handler -> before ( 'add_oauth_header' , $ this -> retry_modify_request ( function ( $ retries , RequestInterface $ request , ResponseInterface $ response = null , $ error = null ) { if ( $ retries > 0 ) { return false ; } if ( $ response instanceof ResponseInterface ) { if ( in_array ( $ response -> getStatusCode ( ) , [ 400 , 401 ] ) ) { return true ; } } return false ; } , function ( RequestInterface $ request , ResponseInterface $ response ) { if ( $ response instanceof ResponseInterface ) { if ( in_array ( $ response -> getStatusCode ( ) , [ 400 , 401 ] ) ) { $ token = $ this -> acquireAccessToken ( ) ; $ this -> setAccessToken ( $ token , 'Bearer' ) ; $ modify [ 'set_headers' ] [ 'Authorization' ] = 'Bearer ' . $ token -> getToken ( ) ; return Psr7 \ modify_request ( $ request , $ modify ) ; } } return $ request ; } ) ) ; return $ handler ; }
Set the middleware handlers for all requests using Oauth2.

@return HandlerStack|null
Set the middleware handlers for all requests using Oauth2 .