How Do I Send JSON Data in POST Requests with Guzzle?

How to Send JSON Data in POST Requests with Guzzle

This question addresses a common issue that developers encounter when attempting to send JSON data using Guzzle's POST request method.

Solution for Guzzle 5, 6, and 7:

The corrected syntax for sending JSON data using Guzzle versions 5, 6, and 7 is:

use GuzzleHttp\Client;

$client = new Client();

$response = $client->post('url', [
    GuzzleHttp\RequestOptions::JSON => ['foo' => 'bar'] // or 'json' => [...]
]);

By adding the GuzzleHttpRequestOptions::JSON option and specifying the JSON data as a value, Guzzle can correctly format and send the request body in JSON format.

Additional Information:

If you are experiencing internal server errors, check the server logs to identify the specific error message. The error may not be directly related to Guzzle, and you might need to configure the server or service to handle JSON requests appropriately.

Refer to the Guzzle documentation for more information on sending JSON requests and resolving potential issues.

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