Fixing the Guzzle 400 Bad request for an API error - php

Question

I tried to convert an AJAX API request script into php using Guzzle, however I keep getting a '400 Bad Request' error. The Ajax version works fine.But I'm trying to automate the process in the back end. The script sends a file to the remote API via a 'POST' request and is meant to return a JSON object back which I then save it to a file.
Most of the possible solutions I found(googled for) involved either doing some exception handling or straight deactivating the guzzle errors. None of which worked. I know that the credentials are all correct because I tested with wrong credentials and it returned an authorization error.
This AJAX code works fine, it gets a file from an html form and uploads it to the API server.
$('#btnUploadFile').on('click', function () {
var data = new FormData();
var files = $("#fileUpload").get(0).files;
for (var i = 0; i < files.length; i++) {
data.append("audioFiles", files[i]); }
data.append("scoresTypes", JSON.stringify([46, 47]));
data.append("Flavor", 1);
data.append("AgentUsername", 'person#email.com');
var ajaxRequest = $.ajax({ type: "POST", url: 'https://remoteserver.com/api/',
headers: { 'Authorization': 'Basic ' + btoa('username' + ':' + 'password') },
scoresTypes: "",
contentType: false,
processData: false,
data: data,
success: function (data) { $("#response").html(JSON.stringify(data)); } });
ajaxRequest.done(function (xhr, textStatus) { });
});
});
This is the PHP code that returns the error '400 Bad Request' to the file
public function sendFile($file_path, $file_name){
$client = new Client();
$url = 'https://remoteserver.com/api/';
$credentials = base64_encode('username:password');
$audio = fopen($file_path, 'r');
$data = [];
$data['audioFiles'] = $audio;
$data['scoresTypes'] = json_encode([46, 47]);
$data['Flavor'] = 1;
$data['AgentUsername'] = 'person#email.com';
$json_file = '/path/'.$file_name.'.json';
try{
$response = $client->request('POST', $url, [
'headers' => [
'Authorization' => 'Basic '.$credentials,
],
'scoresTypes' => '',
'contentType' => 'false',
'processData' => false,
'data'=>$data
]);
$response_s = json_encode($response);
}
catch(RequestException $e) {
$response_s = $e->getResponse()->getBody();
}
Storage::disk('disk_name')->put($json_file, $response_s);
So this is the output that the PHP function is saving to the file instead of the expected JSON object.
{"code":14,"message":"There are no values in scoresTypes or JobTypes keys, please insert valid values in one, or both of them.","responseStatusCode":400}
But as you can see the initial data provided to the ajax version seems to be the same as the one I send in the php request.

Answer 1

have you tried setting the Content-Type to multipart/form-data since you are sending files, i think the default header for post request is application/x-www-form-urlencoded
I'm not a guzzle expert but from what i saw on the examples here you can use something like this instead
http://docs.guzzlephp.org/en/latest/quickstart.html?highlight=file#sending-form-files
<?php
$response = $client->request('POST', 'http://httpbin.org/post', [
'multipart' => [
[
'name' => 'field_name',
'contents' => 'abc'
],
[
'name' => 'file_name',
'contents' => fopen('/path/to/file', 'r')
],
[
'name' => 'other_file',
'contents' => 'hello',
'filename' => 'filename.txt',
'headers' => [
'X-Foo' => 'this is an extra header to include'
]
]
]
]);