Viber
Build Your First Viber Bot
After setting up and getting the authorization token, you should fill it in viber-hello-world. The following is part of sample code.
const url = '__FILL_URL_HERE__';
const bot = new ViberBot({
accessToken: '__FILL_YOUR_TOKEN_HERE__',
});
Run your server and talk to the Viber bot. It works!
Full Example
Here is the complete example for viber-hello-world.
const { ViberBot } = require('bottender');
const { createServer } = require('bottender/express');
const bot = new ViberBot({
accessToken: '__FILL_YOUR_TOKEN_HERE__',
});
bot.onEvent(async (context) => {
await context.sendText('Hello World');
});
const server = createServer(bot);
server.listen(5000, () => {
console.log('server is running on 5000 port...');
});
Events
Bottender supplies several types of event. You are able to access them via context.event.
For more information, check Event Reference.
Viber-Specific Context Event
- isMessage
- isText
- isPicture
- isVideo
- isFile
- isSticker
- isContact
- isLocation
- isSubscribed
- isUnsubscribed
- isConversationStarted
- isDelivered
- isSeen
- isFailed
- text
- picture
- ...
more on ViberEvent Reference.
Example:
bot.onEvent(async (context) => {
if (context.event.isText) {
await context.sendText(`I know this is a text: ${event.text}.`);
} else if (context.event.isPicture) {
await context.sendText('I know this is a picture.');
} else {
await context.sendText('I do not understand.');
}
});
Send APIs
After your bot receives the request from Viber, you can use context send APIs to interact with users.
Viber-Specific Context Send API
- sendMessage
- sendText
- sendPicture
- sendVideo
- sendFile
- sendContact
- sendLocation
- sendURL
- sendSticker
- sendCarouselContent
more on ViberContext Reference.
Example:
bot.onEvent(async (context) => {
await context.sendText('Hello World!');
await context.sendPicture({
text: 'Photo description',
media: 'http://www.images.com/img.jpg',
thumbnail: 'http://www.images.com/thumb.jpg',
});
await context.sendContact({
name: 'Itamar',
phone_number: '+972511123123',
});
await context.sendURL('http://developers.viber.com');
await context.sendSticker(46105);
});