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(C#) WhatsApp - Send a Previously Uploaded Media MessageDemonstrates how to send a media message where the media content was previously uploaded. For more information, see https://developers.facebook.com/docs/whatsapp/api/messages/media
// This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. Chilkat.Http http = new Chilkat.Http(); bool success; // Implements the following CURL command: // curl -X POST https://example.com/v1/messages \ // -H "Authorization: Bearer your-auth-token" \ // -d ' // { // "recipient_type": "individual-or-group", // "to": "whatsapp-id-or-group-id", // "type": "image", // "image": { // "id": "your-media-id", // "caption": "your-image-caption" // } // }' // Use the following online tool to generate HTTP code from a CURL command // Convert a cURL Command to HTTP Source Code // Use this online tool to generate code from sample JSON: // Generate Code to Create JSON // The following JSON is sent in the request body. // { // "recipient_type": "individual-or-group", // "to": "whatsapp-id-or-group-id", // "type": "image", // "image": { // "id": "your-media-id", // "caption": "your-image-caption" // } // } Chilkat.JsonObject json = new Chilkat.JsonObject(); json.UpdateString("recipient_type","individual-or-group"); json.UpdateString("to","whatsapp-id-or-group-id"); json.UpdateString("type","image"); json.UpdateString("image.id","your-media-id"); json.UpdateString("image.caption","your-image-caption"); // Adds the "Authorization: Bearer your-auth-token" header. http.AuthToken = "your-auth-token"; Chilkat.HttpResponse resp = http.PostJson3("https://example.com/v1/messages","application/json",json); if (http.LastMethodSuccess == false) { Debug.WriteLine(http.LastErrorText); return; } Chilkat.StringBuilder sbResponseBody = new Chilkat.StringBuilder(); resp.GetBodySb(sbResponseBody); Chilkat.JsonObject jResp = new Chilkat.JsonObject(); jResp.LoadSb(sbResponseBody); jResp.EmitCompact = false; Debug.WriteLine("Response Body:"); Debug.WriteLine(jResp.Emit()); int respStatusCode = resp.StatusCode; Debug.WriteLine("Response Status Code = " + Convert.ToString(respStatusCode)); if (respStatusCode >= 400) { Debug.WriteLine("Response Header:"); Debug.WriteLine(resp.Header); Debug.WriteLine("Failed."); return; } // Sample JSON response: // (Sample code for parsing the JSON response is shown below) // { // "messages": [ // { // "id": "gBEGkYiEB1VXAglK1ZEqA1YKPrU" // } // ] // } // Sample code for parsing the JSON response... // Use the following online tool to generate parsing code from sample JSON: // Generate Parsing Code from JSON string id; int i = 0; int count_i = jResp.SizeOfArray("messages"); while (i < count_i) { jResp.I = i; id = jResp.StringOf("messages[i].id"); i = i + 1; } |
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