WordPress JSON API AUTH with PHP Curl - php

Question

I am working with wordpress and using this plugin https://wordpress.org/plugins/json-api-auth/ for JSON API Auth and I am trying to return success with curl in PHP but whenever I run the code I am getting {"status":"error","error":"Invalid username and\/or password."}
<?php
$curl = curl_init();
curl_setopt_array($curl, array(
CURLOPT_URL => 'https://example.com/api/auth/generate_auth_cookie/?username="abcd"&password="abcd"',
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 0,
CURLOPT_FOLLOWLOCATION => true,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
));
$response = curl_exec($curl);
curl_close($curl);
echo $response;
?>
But when I put this in the browser url https://example.com/api/auth/generate_auth_cookie/?username=abcd&password=abcd I am getting success
{"status":"ok","cookie":"xyz","cookie_name":"xyzxyz","user":{"id":1,"username":"abcd","nicename":"abcd","email":"abcd#abcd.com","url":"","registered":"2020-09-10 10:42:41","displayname":"abcd","firstname":"abcd","lastname":"abcd","nickname":"abcd","description":"","capabilities":{"administrator":true},"avatar":null}}
Can you help me what I am doing wrong with curl in PHP?
Original version of CURLOPT_URL that I have used in code
CURLOPT_URL => 'https://example.com/api/auth/generate_auth_cookie/?username="'.$this->input->post('email').'"&password="'.$this->input->post('password').'"',

Answer 1

Remove the " from the cURL url query string. The WordPress PHP handling your request would read your username as "abcd" instead of abcd as you are trying to achieve.
CURLOPT_URL => 'https://example.com/api/auth/generate_auth_cookie/?username="abcd"&password="abcd"'
Should be
CURLOPT_URL => 'https://example.com/api/auth/generate_auth_cookie/?username=abcd&password=abcd'