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

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

Thanks

It sounds like you already know that your image is too big to embed. So what's your question? — Kyle Delaney, Apr 20 '20 at 18:20
@ Kyle Delanley, how i can send that in facebook. Facebook is not accepting lengthy url . — Sanjeev Gautam, Apr 21 '20 at 04:27
hi @ Kyle Delanley, thanks for your response. i have saved the image in blob and giving reference to blob url. Thanks for your help appreciated . — Sanjeev Gautam, Apr 28 '20 at 07:01

score 0 · Accepted Answer · answered Apr 28 '20 at 17:27

0

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

answered Apr 28 '20 at 17:27

Kyle Delaney

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

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