How to send a message#

Do not forget to create a module:

go mod init example

Installation:

go get github.com/green-api/whatsapp-api-client-golang

import (
    "github.com/green-api/whatsapp-api-client-golang/pkg/api"
)

GreenAPI := api.GreenAPI{
    IDInstance:       "1101000001",
    APITokenInstance: "d75b3a66374942c5b3c019c698abc2067e151558acbd412345",
}

Note that keys can be obtained from environment variables:

IDInstance := os.Getenv("ID_INSTANCE")
APITokenInstance := os.Getenv("API_TOKEN_INSTANCE")

If an API method has optional parameters, you have to pass JSON to the library method (map[string]interface{}).

response, _ := GreenAPI.Methods().Sending().SendMessage(map[string]interface{}{
    "chatId":  "11001234567@c.us",
    "message": "Any message",
})

go run main.go

Description	Link to example
How to create a group	createGroup/main.go
How to send a file by uploading from the disk	sendFileByUpload/main.go
How to send a file by URL	sendFileByURL/main.go
How to send a message	sendMessage/main.go
How to receive incoming notifications	webhook/main.go