cURL error 60: SSL certificate problem: self signed certificate (see https://curl.haxx.se/libcurl/c/libcurl-errors.html)

Question

I use Guzzle in my Laravel 7 project and XAMPP 7.4.5, I'm trying to make a GET to my local API localhost/events_platforma/view/users It works fine but when I'm trying to make a POST request to https://localhost/events_platforma/register it fails and gives out that cURL error and My API Are on SLIM.

I have added this file

curl.cainfo = curl.cainfo="C:\xampp\php\extras\ssl\cacert.pem"

But still, give out an error

Answer 1

The quick solution for localhost is to turn off the certificate verification using options in guzzle of verify as false.

A quick small example below

use GuzzleHttp\Client;

$client = new Client([
    'base_uri' => 'http://exmaple.org'
]);
$client->request('GET', '/', ['verify' => false]);

If you are using Http-client provided by laravel you can add guzzle options like this,

$response = Http::withOptions([
    'verify' => false,
])->get('http://example.org/');

NOTE:

Though even guzzle suggests to not using it, but if you are testing your own apis it can work.

---

Though you can simple add your certificates as per request just by providing path.

Mozilla provides a commonly used CA bundle which can be downloaded here (provided by the maintainer of cURL).

// Use a custom SSL certificate on disk.
$client->request('GET', '/', ['verify' => '/path/to/cacert.pem']);

Read more about certificates from https://curl.se/docs/sslcerts.html .
Read more about verify from guzzle docs verify