HTTP Client

Introduction

Radiate provides an expressive, minimal API around the WordPress HTTP client, allowing you to quickly make outgoing HTTP requests to communicate with other web applications. Radiate's wrapper around wp_remote_request is focused on its most common use cases and a wonderful developer experience.

Making Requests

To make requests, you may use the get, post, put, patch, and delete methods provided by the Http facade. First, let's examine how to make a basic GET request to another URL:

use Radiate\Support\Facades\Http;

$response = Http::get('https://example.com');

The get method returns an instance of Radiate\Http\Client\Response, which provides a variety of methods that may be used to inspect the response:

$response->body() : string;
$response->json() : array|mixed;
$response->collect() : Radiate\Support\Collection;
$response->status() : int;
$response->ok() : bool;
$response->successful() : bool;
$response->failed() : bool;
$response->serverError() : bool;
$response->clientError() : bool;
$response->header($header) : string;
$response->headers() : array;

The Radiate\Http\Client\Response object also implements the PHP ArrayAccess interface, allowing you to access JSON response data directly on the response:

return Http::get('https://example.com/users/1')['name'];

Request Data

Of course, it is common when making POST, PUT, and PATCH requests to send additional data with your request, so these methods accept an array of data as their second argument. By default, data will be sent using the application/json content type:

use Radiate\Support\Facades\Http;

$response = Http::post('https://example.com/users', [
    'name' => 'Steve',
    'role' => 'Network Administrator',
]);

GET Request Query Parameters

When making GET requests, you may either append a query string to the URL directly or pass an array of key / value pairs as the second argument to the get method:

$response = Http::get('https://example.com/users', [
    'name' => 'Taylor',
    'page' => 1,
]);

Sending Form URL Encoded Requests

If you would like to send data using the application/x-www-form-urlencoded content type, you should call the asForm method before making your request:

$response = Http::asForm()->post('https://example.com/users', [
    'name' => 'Sara',
    'role' => 'Privacy Consultant',
]);

Sending A Raw Request Body

You may use the withBody method if you would like to provide a raw request body when making a request. The content type may be provided via the method's second argument:

$response = Http::withBody(
    base64_encode($photo), 'image/jpeg'
)->post('https://example.com/photo');

Headers

Headers may be added to requests using the withHeaders method. This withHeaders method accepts an array of key / value pairs:

$response = Http::withHeaders([
    'X-First' => 'foo',
    'X-Second' => 'bar'
])->post('https://example.com/users', [
    'name' => 'Taylor',
]);

Authentication

Basic Authentication

You may specify basic authentication credentials using the withBasicAuth methods, respectively:

$response = Http::withBasicAuth('taylor@laravel.com', 'secret')->post(...);

Bearer Tokens

If you would like to quickly add a bearer token to the request's Authorization header, you may use the withToken method:

$response = Http::withToken('token')->post(...);

Timeout

The timeout method may be used to specify the maximum number of seconds to wait for a response:

$response = Http::timeout(3)->get(...);

Error Handling

Radiate's HTTP client wrapper does not throw exceptions on client or server errors (400 and 500 level responses from servers). You may determine if one of these errors was returned using the successful, clientError, or serverError methods:

// Determine if the status code is >= 200 and < 300...
$response->successful();

// Determine if the status code is >= 400...
$response->failed();

// Determine if the response has a 400 level status code...
$response->clientError();

// Determine if the response has a 500 level status code...
$response->serverError();

Throwing Exceptions

If you have a response instance and would like to throw an instance of Radiate\Http\Client\RequestException if the response status code indicates a client or server error, you may use the throw method:

$response = Http::post(...);

// Throw an exception if a client or server error occurred...
$response->throw();

return $response['user']['id'];

The Radiate\Http\Client\RequestException instance has a public $response property which will allow you to inspect the returned response.

The throw method returns the response instance if no error occurred, allowing you to chain other operations onto the throw method:

return Http::post(...)->throw()->json();

If you would like to perform some additional logic before the exception is thrown, you may pass a closure to the throw method. The exception will be thrown automatically after the closure is invoked, so you do not need to re-throw the exception from within the closure:

return Http::post(...)->throw(function ($response, $e) {
//
})->json();

Options

You may specify additional request options using the withOptions method. The withOptions method accepts an array of key / value pairs:

$response = Http::withOptions([
    'compress' => true,
])->get('http://example.com/users');

Concurrent Requests

Sometimes, you may wish to make multiple HTTP requests concurrently. In other words, you want several requests to be dispatched at the same time instead of issuing the requests sequentially. This can lead to substantial performance improvements when interacting with slow HTTP APIs.

Thankfully, you may accomplish this using the pool method. The pool method accepts a closure which receives an Radiate\Http\Client\Pool instance, allowing you to easily add requests to the request pool for dispatching:

use Radiate\Http\Client\Pool;
use Radiate\Support\Facades\Http;

$responses = Http::pool(function (Pool $pool) {
    $pool->get('http://localhost/first'),
    $pool->get('http://localhost/second'),
    $pool->get('http://localhost/third'),
});

return $responses[0]->ok() && $responses[1]->ok()

As you can see, each response instance can be accessed based on the order it was added to the pool. If you wish, you can name the requests using the as method, which allows you to access the corresponding responses by name:

use Radiate\Http\Client\Pool;
use Radiate\Support\Facades\Http;

$responses = Http::pool(function (Pool $pool) {
    $pool->as('first')->get('http://localhost/first'),
    $pool->as('second')->get('http://localhost/second'),
    $pool->as('third')->get('http://localhost/third'),
});

return $responses['first']->ok();