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2023-03-17 12:18:29 +01:00

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===========
HTTP Client
===========
Nextcloud comes with a simple HTTP client that can be used to send requests to other web servers. This client follows Nextcloud's configuration, security restrictions and proxy settings.
Acquiring a HTTP Client
-----------------------
HTTP client instances are built using the client service `factory <https://en.wikipedia.org/wiki/Factory_(object-oriented_programming)>`_ ``IClientService``. The factory can be :ref:`injected<dependency-injection>` into any app class:
.. code-block:: php
<?php
use OCP\Http\Client\IClientService;
class MyRemoteServerIntegration {
private IClientService $clientService;
public function __construct(IClientService $clientService) {
$this->clientService = $clientService;
}
public function downloadNextcloudWebsite(): void {
$client = $this->clientService->newClient();
$response = $client->get('https://nextcloud.com');
$body = $response->getBody();
}
}
HEAD request
------------
.. code-block:: php
<?php
$client = $this->clientService->newClient();
$response = $client->head('https://nextcloud.com');
$body = $response->getBody();
GET request
-----------
.. code-block:: php
<?php
$client = $this->clientService->newClient();
$response = $client->get('https://nextcloud.com');
$body = $response->getBody();
POST request
------------
.. code-block:: php
<?php
$client = $this->clientService->newClient();
$response = $client->post('https://api.domain.tld/pizza', [
'headers' => [
'Accept' => 'application/json',
'Content-Type' => 'application/json',
],
'body' => json_encode([
'toppings' => [
'cheese',
'pineapple',
],
])
]);
$pizza = json_decode($response->getBody(), true);
PUT request
-----------
.. code-block:: php
<?php
$client = $this->clientService->newClient();
$response = $client->put('https://api.domain.tld/pizza/42', [
'headers' => [
'Accept' => 'application/json',
'Content-Type' => 'application/json',
],
'body' => json_encode([
'toppings' => [
'cheese',
'pineapple',
],
])
]);
$pizza = json_decode($response->getBody(), true);
DELETE request
--------------
.. code-block:: php
<?php
$client = $this->clientService->newClient();
$response = $client->delete('https://api.domain.tld/pizza/42');
OPTIONS request
---------------
.. code-block:: php
<?php
$client = $this->clientService->newClient();
$response = $client->options('https://nextcloud.com');
$status = $response->getStatusCode();
$allHeaders = $response->getHeaders();
$contentType = $response->getHeader('content-type');
Error handling
--------------
Errors are signaled with exceptions. Catch PHP's base ``Exception``.
.. code-block:: php
<?php
use Exception;
$client = $this->clientService->newClient();
try {
$response = $client->options('https://nextcloud.com');
} catch (\Exception $e) {
// Handle the error
}