I cant do OTP request anymore

Please provide the relevant code that executes when the Get OTP button is clicked. If it’s more than a couple dozen lines, please post at pastebin.com or gist.github.com and just provide the link here.

Also, what response, if any, comes back from the API server?

Hello sorry for the delay, here is the code:

<script>
                jQuery("#get-otp").on('click', function(e) {

                    e.preventDefault();
                    jQuery.ajax({
                        type: "POST",
                        url: "https://e-ly.shop/wp-admin/admin-ajax.php",
                        data: {
                            action: 'send_user_otp',
                            phone_number: 0914864917,
                            birthyear: jQuery("input[name='birth_date']").val(),
                            order_id: 3204,
                            order_total: 50.00,
                            token: '***********************************',
                            url: 'https://pgw.almadar.ly/api/',
                            category: 20                        },
                        success: function(response) {
                            if (isNaN(response)) {

                                alert(response);
								console.log(response)

                            } else {

                                let transactionID = response;
                                jQuery("#transaction_id").val(transactionID);
                              
                            }
                        }

                    });

                });

                jQuery("#pay_sadad").on("click", function(e) {

                    e.preventDefault();

                    e.preventDefault();
                    jQuery.ajax({
                        type: "POST",
                        url: "https://e-ly.shop/wp-admin/admin-ajax.php",
                        data: {
                            action: 'pay_invoice',
                            transaction_id: jQuery("#transaction_id").val(),
                            OTP: jQuery("#OTP").val(),

                            token: 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJodHRwOi8vc2NoZW1hcy54bWxzb2FwLm9yZy93cy8yMDA1LzA1L2lkZW50aXR5L2NsYWltcy9uYW1lIjoiU2FkYWRQR1ciLCJjb3Jwb3JhdGVTZXJ2aWNlSWQiOjEzNTAsImFwcElkIjoiZmE1MjhiY2Q5ZjRiNGZiZWExYzRmOTI4ZTU3Nzg3NzkiLCJleHAiOjE2NTM2NTI0NzEsImlzcyI6IkNvcmV0ZWMiLCJhdWQiOiJTQURBRFBHVyJ9.CL6M9gmbvk698m5lExmIn734pTEbU6dIMbYBRI013ho',
                            url: 'https://pgw.almadar.ly/api/',

                        },
                        success: function(response) {
                            console.log(response);
                            if (response == 0) {

                                jQuery.ajax({
                                    type: "POST",
                                    url: "https://e-ly.shop/wp-admin/admin-ajax.php",
                                    data: {
                                        action: 'update_order_on_success',
                                        order_id: 3204,

                                    },
                                    success: function(response) {

                                        window.location.href = response;

                                    }

                                });

                            }
                        }

                    });

                });

I get no response to the API

Try adding dataType : 'json', to the .ajax() parameters. Its default data type is not easily processed by admin-ajax.php

sorry where to add it in the code

I added it under data: {

on both ,nothing happened. I used troubleshooting API request and the error i get is Cannot parse the body

If the API can provide an error about the body, then the request properly reached the Ajax callback. The API doesn’t like the data that was sent for some reason. Refer to the API documentation for what’s required. Compare against what is actually sent.