How to send variable with the guzzle post method - php

Question

I have an API and I need to send some data to it and I am using guzzle for handling it so here is my code:
$amount = $request->get('amount');
$client = new \GuzzleHttp\Client();
$requestapi = $client->post('http://192.168.150.16:7585/api/v1/Transaction/GetTransactionNumber', [
'headers' => ['Content-Type' => 'application/json'],
'body' => '{
"Amount":"i want to send $amount here",
"something":"1",
"Description":"desc",
}'
]);
so every thing is fine and static data is being send but I want to know how can I send a variable.

Answer 1

You can bind the data in form_params parameter like
$client = new \GuzzleHttp\Client();
$amount = $request->get('amount');
$requestapi = $client->post('http://192.168.150.16:7585/api/v1/Transaction/GetTransactionNumber', [
'form_params' => [
"Amount" => "i want to send $amount here",
"something" => "1",
"Description" => "desc",
]
]);
Hope this works for you.

Answer 2

Amount can pass in an array and after you can encode with json using ```json_encode``
Hope this works for you.
$amount = $request->get('amount');
$client = new \GuzzleHttp\Client();
$url = "http://192.168.150.16:7585/api/v1/Transaction/GetTransactionNumber";
$data = [
"amount" => $amount,
"something" => "1",
"description" => "desc",
];
$requestAPI = $client->post( $url, [
'headers' => ['Content-Type' => 'application/json'],
'body' => json_encode($data);
]);

Answer 3

You can try to use Guzzle json option:
$amount = $request->get('amount');
$client = new \GuzzleHttp\Client();
$response = $client->post(
'http://192.168.150.16:7585/api/v1/Transaction/GetTransactionNumber',
[
GuzzleHttp\RequestOptions::JSON => [
'Amount' => $amount,
'something' => '1',
'Description' => 'desc',
]
]
);
Check Guzzle manual - http://docs.guzzlephp.org/en/stable/request-options.html#json