Performing a JSON POST Request: Steps for sending a POST request with JSON data format

I need to send the following data:

{
  "contactsync":
      { "rev":4,
        "contacts":[
                   { "fields": [
                                {
                                   "value":
                                      {
                                        "givenName":"dfgheeej",
                                        "familyName":"ffftestfff"
                                      },
                                   "type":"name",
                                   "flags":[],
                                   "op":"add"
                                },
                                {
                                   "value":"fffffff",
                                   "type":"nickname",
                                   "flags":[],
                                    "op":"add"
                                },
                                {
                                   "value":"<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="2543434343436543434343430b464a48">[email protected]</a>",
                                   "type":"email",
                                   "flags":[],
                                   "op":"add"
                                }
                            ],
                     "categories":[],
                     "op":"add"
                   }
       }
}

to a specified url (for example: site.com/anything/add?format=json&wssid=t4764.444&wssid=some_value&windowid=&r=776566756).

What is the best way to send the above data to a url using JavaScript? (I want to create an HTML file with a script to accomplish this.)

This process will involve sending data from one server to another, rather than within the same server.

phpjavascriptjsonposthttprequest

Answer №1

For those situations where your script is on the same server, and the server supports CORS or JSONP, you can utilize ajax. Below is an example using jQuery:

var data = {"contactsync":{"rev":4,"contacts":[{"fields":[{"value":{"givenName":"dfgheeej","familyName":"ffftestfff"},"type":"name","flags":[],"op":"add"},{"value":"fffffff","type":"nickname","flags":[],"op":"add"},{"value":"<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="e78181818181a78181818181c984888a">[email protected]</a>","type":"email","flags":[],"op":"add"}],"categories":[],"op":"add"}]}};
var url = 'site.com/anything/addformat=json&wssid=t4764.444&wssid=some_value&windowid=&r=776566756';

$.post(url, JSON.stringify(data), function(response) {

});

If ajax cannot be used, a PHP proxy can be created. This involves passing the JSON to the remote address and printing the response. Here's an example:

function post($url, $data) {
    $ch = curl_init($url);
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    return curl_exec($ch);
}

function get_raw_post_data() {
    if (isset($GLOBALS['HTTP_RAW_POST_DATA'])) {
        return $GLOBALS['HTTP_RAW_POST_DATA'];
    } else {
        return file_get_contents('php://input');
    }
}

$url = "site.com/anything/addformat=json&wssid=t4764.444&wssid=some_value&windowid=&r=776566756";

echo post($url, get_raw_post_data());

Instead of the URL of the remote site, use this script on the same server.

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