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WhatsApp-Api-NodeJs

This code is an implementation of Baileys, as a RestFull Api service, which controls whatsapp functions.
With this one you can create multiservice chats, service bots or any other system that uses whatsapp. With this code you don't need to know javascript for nodejs , just start the server and make the language requests that you feel most comfortable with.

Node n8n

Infrastructure

Nvm installation

curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.3/install.sh | bash
# or
wget -qO- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.3/install.sh | bash

After finishing, restart the terminal to load the new information.

Docker installation [optional]

curl -fsSL https://get.docker.com -o get-docker.sh

sudo sh get-docker.sh

sudo usermod -aG docker ${USER}

Nodejs installation

nvm install 18.17.0

pm2 installation

npm i -g pm2

yarn installation

npm i -g yarn

docker --version

node --version

MongoDb [optional]

After installing docker and docker-compose, up the container.

• compose from mongodb

In the same directory where the file is located, run the following command:

bash docker.sh

Using the database is optional.

Application startup

Cloning the Repository

git clone https://github.com/code-chat-br/whatsapp-api.git

Go to the project directory and install all dependencies.

cd whatsapp-api

yarn i

Finally, run the command below to start the application:

# Under development
yarn start

# In production
yarn start:prod

# pm2
pm2 start 'yarn start:prod' --name ApiCodechat

Swagger - OpenAPI 3.0.0

• Route: http://localhost:8083/docs
• YAML file: swagger.yaml

Authentication

You can define two authentication types for the routes in the env file. Authentications must be inserted in the request header.

1. apikey

2. jwt: A JWT is a standard for authentication and information exchange defined with a signature.

Authentications are generated at instance creation time.

Note: There is also the possibility to define a global api key, which can access and control all instances.

Connection

Create an instance

HTTP

NOTE: This key must be inserted in the request header to create an instance.

POST /instance/create HTTP/1.1
Host: localhost:8080
Content-Type: application/json
apikey: t8OOEeISKzpmc3jjcMqBWYSaJH2PIxns

{
  "instanceName": "codechat"
}

cURL

curl --location --request POST 'http://localhost:8080/instance/create' \
--header 'Content-Type: application/json' \
--header 'apikey: t8OOEeISKzpmc3jjcMqBWYSaJH2PIxns' \
--data-raw '{
  "instanceName": "codechat"
}'

Response

{
  "instance": {
    "instanceName": "codechat",
    "status": "created"
  },
  "hash": {
    "jwt": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9. [...]"

    // or
    // "apikey": "88513847-1B0E-4188-8D76-4A2750C9B6C3"
  }
}

Connection with qrcode

HTTP

GET /instance/connect/codechat HTTP/1.1
Host: localhost:8080
Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9. [...]

GET /instance/connect/codechat HTTP/1.1
Host: localhost:8080
apikey: 88513847-1B0E-4188-8D76-4A2750C9B6C3

cURL

curl --location --request GET 'http://localhost:8080/instance/connect/codechat' \
--header 'Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9. [...]'

curl --location --request GET 'http://localhost:8080/instance/connect/codechat' \
--header 'apikey: 88513847-1B0E-4188-8D76-4A2750C9B6C3'

Response

{
  "code": "2@nXSUgRJSBY6T0XJmiFKZ0 [...] ,XsgJhJHYa+0MPpXANdPHHt6Ke/I7O2QyXT/Lsge0uSg=",
  "base64": "data:image/png;base64,iVBORw0KGgoAAAANSUhE [...] LkMtqAAAAABJRU5ErkJggg=="
}

App in Docker

• docker run
• docker-compose
• env for docker
• DockerHub-codechat/api

After building the application, in the same directory as the files above, run the following command:

docker-compose up

Send Messages

Send Text	✔
Send Buttons	❌
Send Template	❌
Send Media: audio - video - image - document - gif base64: true	✔
Send Media File	✔
Send Audio type WhatsApp	✔
Send Audio type WhatsApp - File	✔
Send Location	✔
Send List	✔
Send Link Preview	❌
Send Contact	✔
Send Reaction - emoji	✔

Postman collections

• Postman Json
• 

Webhook Events

Name	Event	TypeData	Description
QRCODE_UPDATED	qrcode.updated	json	Sends the base64 of the qrcode for reading
CONNECTION_UPDATE	connection.update	json	Informs the status of the connection with whatsapp
MESSAGES_SET	message.set	json	Sends a list of all your messages uploaded on whatsapp This event occurs only once
MESSAGES_UPSERT	message.upsert	json	Notifies you when a message is received
MESSAGES_UPDATE	message.update	json	Tells you when a message is updated
SEND_MESSAGE	send.message	json	Notifies when a message is sent
CONTACTS_SET	contacts.set	json	Performs initial loading of all contacts This event occurs only once
CONTACTS_UPSERT	contacts.upsert	json	Reloads all contacts with additional information This event occurs only once
CONTACTS_UPDATE	contacts.update	json	Informs you when the chat is updated
PRESENCE_UPDATE	presence.update	json	Informs if the user is online, if he is performing some action like writing or recording and his last seen 'unavailable'
CHATS_SET	chats.set	json	Send a list of all loaded chats
CHATS_UPDATE	chats.update	json	Informs you when the chat is updated
CHATS_UPSERT	chats.upsert	json	Sends any new chat information
GROUPS_UPSERT	groups.upsert	JSON	Notifies when a group is created
GROUPS_UPDATE	groups.update	JSON	Notifies when a group has its information updated
GROUP_PARTICIPANTS_UPDATE	group-participants.update	JSON	Notifies when an action occurs involving a participant 'add'
NEW_TOKEN	new.jwt	JSON	Notifies when the token (jwt) is updated

Env File

See additional settings that can be applied through the env file by clicking here.

⚠️Attention⚠️: copy the dev-env.yml file to env.yml.

SSL

To install the SSL certificate, follow the instructions below.

Note

This code is in no way affiliated with WhatsApp. Use at your own discretion. Don't spam this.

This code was produced based on the baileys library and it is still under development.

Donate to the project.

Pix: 2b526ada-4ef4-4db4-bbeb-f60da2421fce

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