Send Image from byte[] using ms bot, Channel: Facebook, C#

Question

I need to send image in bot. converted my Image to Byte Array.

In emulator image is sending, but in Facebook, it is not sending.

Below is my code.

byte[] imageBytes12 = my image;
string url = "data:image/png;base64," + Convert.ToBase64String(imageBytes12);

var attachmentsImage = new List<Attachment>();
var replyImage = MessageFactory.Attachment(attachmentsImage);
HeroCard menuCardImage = Cards.HeroImageCard(url);
replyImage.Attachments.Add(menuCardImage.ToAttachment());
await stepContext.Context.SendActivityAsync(replyImage, cancellationToken);

I have seen

• Send an image rather than a link
• Display byte array as an image using botframework

when image is converted as byte, it is too lengthy to send as ContentUrl, thats why it is failing. Any help is appreciated.

Thanks

Answer 1

When using an image that's too large to embed as a data URL, you will need to provide a link to the image on a server