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Home/ Questions/Q 8575467
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Editorial Team
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Editorial Team
Asked: June 11, 20262026-06-11T19:42:04+00:00 2026-06-11T19:42:04+00:00

I am using sendhub API. https://www.sendhub.com/developer/ and getting this error. The format indicated ‘application/x-www-form-urlencoded’

  • 0

I am using sendhub API.

https://www.sendhub.com/developer/

and getting this error.

The format indicated ‘application/x-www-form-urlencoded’ had no available deserialization method. Please check your formats and content_types on your Serializer.

The code I am using is:

    $ch = curl_init();

                curl_setopt($ch, CURLOPT_URL,$url);
                curl_setopt($ch, CURLOPT_HEADER, "Content-Type: application/json");
                curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
                curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);

                if(LOCAL_MODE){
                  curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, TRUE);
                  curl_setopt($ch, CURLOPT_PROXYTYPE, CURLPROXY_HTTP);
                  curl_setopt($ch, CURLOPT_PROXY, FALSE);
                 }

                curl_setopt($ch, CURLOPT_POST, 1);

                $data = '{
                   "contacts": [
                      1111
                   ],
                   "text": "Testing"
                }';

                curl_setopt($ch, CURLOPT_POSTFIELDS,$data);
                echo $result=curl_exec ($ch);
                echo curl_error($ch);

Can anybody help me how to solve this issue.

Thank You.

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1 Answer

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  1. Editorial Team
    Editorial Team
    2026-06-11T19:42:05+00:00Added an answer on June 11, 2026 at 7:42 pm

    It seems that Content-Type is not being sent correctly.

    The message “The format indicated ‘application/x-www-form-urlencoded’ had no available deserialization method.” indicates the server is reading the content type as ‘application/x-www-form-urlencoded’ rather than ‘application/json’.

    You should be setting the content type like this:

    curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json'));
    

    (note the CURLOPT_HEADER is now CURLOPT_HTTPHEADER)

    Assuming that your url (including the username and apikey) are correct and the contact ids supplied exist this should now work.

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