Square Connect API - image upload - Empty Reply From Server code 52 error

Question

Trying to get square connect API image upload working using PHP.

I used the square connect API guide: docs.connect.squareup.com/api/connect/v1/#post-image

Trie

Answer 1

Here's a working PHP example that I usually share with people: https://gist.github.com/tdeck/7118c7128a4a2b653d11

<?php
function uploadItemImage($url, $access_token, $image_file) {
    $headers = ["Authorization: Bearer $access_token"];
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, ['image_data' => "@$image_file;type=image/jpeg"]);
    curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    $data = curl_exec($ch);
    $return_status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    print "POST to $url with status $return_status\n";
    curl_close($ch);
    return $data ? json_decode($data) : false;
}
print_r(
    uploadItemImage(
        'https://connect.squareup.com/v1/me/items/ITEM_ID/image',
        'ACCESS_TOKEN',
        'IMAGE_FILE.jpg'
    )
);
?>