Error while POSTing file with GuzzleHTTP - part was null - php

Question

I try to send the file via GuzzleHTTP from my application to external API, I make it like this:
public function storeImagesInAmazon(Request $request) {
$uploadFilePath = 'some/endpoint';
$file = $request->file('file');
$client = new Client();
$response = $client->request('POST', $uploadFilePath, [
'headers' => [
'Accept' => 'application/json',
'Content-Type' => 'multipart/form-data',
],
'multipart' => [
[
'name' => 'file',
'contents' => $file
]
]
]);
$result = json_decode($response->getBody(), true);
return [
'hashedID' => $result['hashedID']
];
}
The error I get is:
Server error: POST some/endpoint resulted in a 500 Internal Server Error response:\n
Errorerror while processing file: Failed to process file: part was null
I tested it via Postman, adding key = 'file', value = 'some_file.pdf' in Body form-data, I am sure file is correct, I mean it isn't damaged, I tried to post different files large one, a small one, pdf or jpg/png.
But I still have this issue and I can't find a solution for this.

Answer 1

I found this solution Guzzle form_params not accepting array
what I'm trying to say is, you need $option as your next param like in that post
$response = $client->post('api', $options);
and that $option is where your headers or multipart or other options goes as per documentation. i already tried using $options and its worked in my case.