Request using Guzzle

**GET Request using Guzzle**
If you look at the REQ|RES website they provided a few endpoints for ‘GET’ request. I will take the example of ‘LIST USERS’ endpoint. For getting users list, they ask to send a GET request to this endpoint 
https://reqres.in/api/users?page=2.

        <?php
        require_once "vendor/autoload.php";
        
        use GuzzleHttp\Client;
        
        $client = new Client([
            // Base URI is used with relative requests
            'base_uri' => 'https://reqres.in',
        ]);
        
        $response = $client->request('GET', '/api/users', [
            'query' => [
                'page' => '2',
            ]
        ]);
        
        //get status code using $response->getStatusCode();
        
        $body = $response->getBody();
        $arr_body = json_decode($body);
        print_r($arr_body);
 
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**POST Request using Guzzle**
Probably, there are 2 types of POST requests. You may need to POST parameters as application/x-www-form-urlencoded POST request or upload JSON encoded data as a body of the request. 
You can post JSON encoded data as shown below.


        <?php
        require_once "vendor/autoload.php";
        
        use GuzzleHttp\Client;
        
        $client = new Client([
            // Base URI is used with relative requests
            'base_uri' => 'https://reqres.in',
        ]);
        
        $response = $client->request('POST', '/api/users', [
            'json' => [
                'name' => 'Sam',
                'job' => 'Developer'
            ]
        ]);
        
        //get status code using $response->getStatusCode();
        
        $body = $response->getBody();
        $arr_body = json_decode($body);
        print_r($arr_body);
        
        
** POST application/x-www-form-urlencoded POST request **

        <?php
        require_once "vendor/autoload.php";
        
        use GuzzleHttp\Client;
        
        $client = new Client([
            // Base URI is used with relative requests
            'base_uri' => 'BASE_URL_ENDPOINT',
        ]);
        
        $client->request('POST', '/endpoint_here', [
        'form_params' => [
            'foo' => 'bar',
            'baz' => ['hi', 'there!']
        ]
        ]);

**Send Authorization token in each HTTP request**


        <?php
        $client->request('POST', '/endpoint_here', [
            "headers" => [
                "Authorization" => "Bearer TOKEN_VALUE"
            ],
            'form_params' => [
            'foo' => 'bar',
            'baz' => ['hi', 'there!']
            ]
        ]);
        
        
        
** Copy File from Remote Server using Guzzle **

        <?php
        require_once "vendor/autoload.php";
        
        use GuzzleHttp\Client;
        
        $fp = fopen('blog.jpg', 'wb');
        
        $client = new \GuzzleHttp\Client();
        $request = $client->get('https://artisansweb.net/wp-content/uploads/2020/03/blog.jpg', ['sink' => $fp]);
        
        fclose($fp);
        
        
**File upload using Guzzle**

        <?php
        require_once "vendor/autoload.php";
        
        use GuzzleHttp\Client;
        
        $client = new Client([
            // Base URI is used with relative requests
            'base_uri' => 'BASE_URL_HERE',
        ]);
        
        $client->request('POST', '/endpoint_here', [
            'multipart' => [
                [
                    'name'     => 'files', // name value requires by endpoint
                    'contents' => fopen('/path/to/file', 'r'),
                    'filename' => 'custom_image.jpg'
                ],
            ]
        ]);
        
        
        
** Live example of reSmush.it API which sends an optimized version of the image in response. **


        <?php
        require_once "vendor/autoload.php";
        
        use GuzzleHttp\Client;
        
        try {
            $client = new Client([
                // Base URI is used with relative requests
                'base_uri' => 'http://api.resmush.it',
            ]);
        
            $response = $client->request('POST', "?qlty=92", [
                'multipart' => [
                    [
                        'name'     => 'files', // name value requires by endpoint
                        'contents' => fopen(getcwd().'/blog.jpg', 'r'),
                        'filename' => 'blog.jpg',
                        'headers'  => array('Content-Type' => mime_content_type(getcwd().'/blog.jpg'))
                    ]
                ]
            ]);
        
            if (200 == $response->getStatusCode()) {
                $response = $response->getBody();
                $arr_result = json_decode($response);
                print_r($arr_result);
            }
        } catch (\Exception $e) {
            echo $e->getMessage();
        }