GuzzleHttp - Get JSON encoded body - json

Question

I created an API client for my company to fetch orders from our distributors. I need to acknowledge download of orders back to them with a PUT. The PUT is working properly but I get an error on their confirmation of my acknowledgement.
Using Postman, I get a JSON body message back.
When I PUT a acknowledgement back, I get the following error:
Type error: Argument 1 passed to GuzzleHttp\Client::send() must
implement interface Psr\Http\Message\RequestInterface, instance of
GuzzleHttp\Psr7\Response given, called in
/var/www/orders/app/Http/Controllers/edi/OrderController.php on line 86
This is line 86:
$response = $client->send($apirequest);
The relevant code:
use Illuminate\Http\Request;
use App\Http\Requests;
use App\Http\Controllers\Controller;
use GuzzleHttp\Exception\GuzzleException;
use GuzzleHttp\Client as GuzzleHttpClient;
use GuzzleHttp\Psr7\Stream;
use Illuminate\Support\Facades\Input;
use Response;
use XmlParser;
use Psr\Http\Message\RequestInterface;
public function orderConfirm()
{
$uri = config('services.orders.orderack');
$formdata = Input::all();
$orders = Input::get('orders');
try {
$client = new GuzzleHttpClient([
'headers'=> [
'Authorization' => '$user',
'ContractID' => '$contract',
'Content-Type' => 'application/json']
]);
$apirequest = $client->request('PUT', $uri,
['body' => json_encode(
[
$orders
]
)]
);
$response = $client->send($apirequest);
$contents = (string) $response->getBody();
return $contents;
}
catch (RequestException $ex) {
//Exception Handling
echo $ex;
}
Output from Postman was:
"Number of Orders Acknowledged: 1"
from other posts on SO, this:
$contents = (string) $response->getBody();
is the way to get the body and other people fixed their problems, but it's not working for me.
Obviously I'm still missing something here!

Answer 1

Calling $client->request() actually does the request (which is why it's returning an instance of GuzzleHttp\Psr7\Response) instead of building a request object to send later. You don't need to tell the client to send anything because it's already been sent; you just need to set the $response variable to the value of the call to $client->request().
This can be seen in the Body example in their PSR7 documentation.
$response = $client->request('GET', 'http://httpbin.org/get');
To build a request object manually, you will have to create an instance of GuzzleHttp\Psr7\Request using its constructor, as documented under Requests.
// Create a request using a completely custom HTTP method
$request = new \GuzzleHttp\Psr7\Request('MOVE', 'http://httpbin.org/move');
echo $request->getMethod();
// MOVE