I'm using the following lines of code (PHP) after successfuly retriving the media URL and then storing it in the $mediaURL variable for the file request, but it's returning an empty string. Already tried with postman and it returns a 500 internal server error...

** Edited **

self::writeLog('Media URL: '.$mediaURL); self::writeLog('Preparing to download media - id: '.$media_id); $curl = curl_init($mediaURL); curl_setopt($curl, CURLOPT_RETURNTRANSFER, true); $headers = array(     "Authorization: Bearer ".self::$auth_token, ); curl_setopt($curl, CURLOPT_HTTPHEADER, $headers); curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false); curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); if (($resp = curl_exec($curl)) === false) {     self::writeLog('cURL Error: '.curl_error($curl)); } else if ($resp == '') {     self::writeLog('Empty string.');     self::writeLog('URL: '.$mediaURL);     self::writeLog('Headers: '.$headers[0]); } else {     self::writeLog($resp); }              

• writeLog is just a method that I use to write these messages on a txt file.

Hi I want to use WhatsApp business API in my web application. I have tested it in postman.

Whenever run sample curl code when available in Facebook business page under WhatsApp tab, It run successfully with temporary access token and message delivered to recipient with Facebook saved template. But when I send only text message to recipient then API response become success with message Id but message not yet deliver to recipient.

My curl code sample given bellow

curl --location --request POST 'https://graph.facebook.com/v13.0/106433498743301/messages' \ --header 'Authorization: Bearer EAAOw8oNtvXkBAKk89CqJtyusjxk7c7qGSNS0quxqeZBRtjE5MYwZCK0USeGGLV4n56qNAuaRoRWZA2oCIS8zcz6U5UZAtQCOb6YQnjuXZBfLnyZAwsOZBpASpnNOvvz29T0Jn0aXgZAdo9VKmBv0CkNYuOeb1I7X0GZCEwLHPZBFpfOCj4K3S9CMPjBfYR5Jog06LC95P7UgCr5Fy2nqbRM5Ys' \ --header 'Content-Type: application/json' \ --data-raw '{ "messaging_product": "whatsapp", "preview_url": false, "recipient_type": "individual", "to": "xxxxxxx150", "type": "text", "text": { "body": "Test message" } }' 

I'm trying to upload an image as profile picture using WhatsApp Cloud API *.

After creating an application using WhatsApp Cloud API I'm not allowed to access neither using the regular application nor using Business Application. It says something like "try again in one hour". So I have to implement everything using the API.

After reading the docs and importing Postman Endpoints I found the one called Business Profiles > Update Business Profile

https://graph.facebook.com/{{Version}}/{{Phone-Number-ID}}/whatsapp_business_profile

It has a field "profile_picture_url"and I have tried POSTing media https://graph.facebook.com/{{Version}}/{{Phone-Number-ID}}/media and then with the given ID y used https://graph.facebook.com/{{Version}}/{{Media-ID}} to get the URL but it didn't work. The rest of the information is updated successfully

{     "messaging_product": "whatsapp",     "address": "",     "description": "Simple Bot",     "email": "...@gmail.com",     "websites": [         "https://..."     ],     "profile_picture_url": "https://lookaside.fbsbx.com/..." } 

However if I try to send someone using the ID and the endpoint https://graph.facebook.com/{{Version}}/{{Phone-Number-ID}}/messages it works fine. And if I use Download Media Content with the URL in Postman it works fine too.

I don't know if I have misunderstood something or if it can't be done using the API.

Iam trying to use gupshup whatsapp business api through template.

My template expects a link url for the attachment therefore iam building an url through buffer in nodejs and having given response type for the link url as this.

       statusCode: 200,        headers: {            "content-type": "application/pdf",            'content-disposition': 'inline; filename=suresign.pdf',            'Accept-Ranges': 'bytes',            'Content-Length': buffer.length,        },        body: buffer.toString('base64'),        isBase64Encoded: true    }``` Iam able to generate message id ```{"messageId":"8427c6aa-8140-4d79-a835-ba8f44f6c867","status":"submitted"}``` but in gupshup callback response im getting error as this ```{    "app": "SureCredsLIVE",    "timestamp": 1654016941604,    "version": 2,    "type": "message-event",    "payload": {        "id": "8427c6aa-8140-4d79-a835-ba8f44f6c867",        "type": "failed",        "destination": "918553220750",        "payload": {            "code": 1011,            "reason": "Invalid Media Size"        }    } }```

is there any way to send a WhatsApp message using .Net Maui I have tried many Api but nothing works for me