Whatsapp API Tutorial

Hi, this is the implementation example of whatsapp-web.js

Watch the tutorials:

• Whatsapp API Tutorial: Part 1
• Whatsapp API Tutorial: Part 2
• Whatsapp API Tutorial: Tips & Tricks
• Whatsapp API Tutorial: Sending Media File
• Whatsapp API Tutorial: Deploy to Heroku
• Whatsapp API Tutorial: Multiple Device
• Whatsapp API Tutorial: Multiple Device | Part 2
• Whatsapp API Tutorial: Fix Heroku Session
• Whatsapp API Tutorial: Dynamic Message Reply
• Whatsapp API Tutorial: Fix Session & Support for Multi-Device Beta

Important thing!

As because Whatsapp regularly makes an update, so we needs to always use the latest version of whatsapp-web.js. Some errors may occurs with the old versions, so please try to update the library version before creating an issue.

How to use?

• Clone or download this repo
• Enter to the project directory
• Run npm install
• Run npm run start:dev
• Open browser and go to address http://localhost:8000
• Scan the QR Code
• Enjoy!

Send message to group

You can send the message to any group by using chatID or group name, chatID will used if you specify the id field in the form, so if you want to send by name, only use name.

Paramaters:

• id (optional if name given): the chat ID
• name (optional): group name
• message: the message

Here the endpoint: /send-group-message

Here the way to get the groups info (including ID & name):

• Send a message to the API number !groups
• The API will replying with the groups info
• Use the ID to send a message

Downloading media

I add an example to downloading the message media if exists. Please check it in on message event!

We use mime-types package to get the file extension by it's mimetype, so we can download all of the type of media message.

And we decided (for this example) to use time as the filename, because the media filename is not certain exists.

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