Problem

it is necessary to implement the reception of wpp webhook and api and process according to the command used in the chat. For now, all you need is the command to register with the bot (!In).
When using the !in command, you must check the name and telephone number of the person who sent the command and insert it into the database if that person is not yet registered

Only Little Farm group's message should be checked, any other sender should be ignored.

you should use the following message template for webhook(you can also see this json at /src folder):

{
"type": "message",
"body": {
"key": {
"remoteJid": "[email protected]",
"fromMe": false,
"id": "3AF48D7E1E0FF8195409",
"participant": "[email protected]"
},
"messageTimestamp": 1697159707,
"pushName": "Vinicius",
"broadcast": false,
"message": {
"conversation": "falancorno",
"senderKeyDistributionMessage": {
"groupId": "[email protected]",
"axolotlSenderKeyDistributionMessage": "MwiK+/6sBhACGiBGfuB8T9BbclgRLm0uVuVMbAI7O8fH+wK5Bc2SIkIYUCIhBZLjvsilWyyoS10UR6pV9PtDhWGfV0bcEdbq4B7QRO92"
},
"messageContextInfo": {
"deviceListMetadata": {
"senderKeyHash": "/Etu4255Z4qTXQ==",
"senderTimestamp": "1696286095",
"recipientKeyHash": "3FmNC8uEz5OMsg==",
"recipientTimestamp": "1697088112"
},
"deviceListMetadataVersion": 2
}
},
"text": {
"messages": [
{
"key": {
"remoteJid": "[email protected]",
"fromMe": false,
"id": "3AF48D7E1E0FF8195409",
"participant": "[email protected]"
},
"messageTimestamp": 1697159707,
"pushName": "Vinicius",
"broadcast": false,
"message": {
"conversation": "falancorno",
"senderKeyDistributionMessage": {
"groupId": "[email protected]",
"axolotlSenderKeyDistributionMessage": "MwiK+/6sBhACGiBGfuB8T9BbclgRLm0uVuVMbAI7O8fH+wK5Bc2SIkIYUCIhBZLjvsilWyyoS10UR6pV9PtDhWGfV0bcEdbq4B7QRO92"
},
"messageContextInfo": {
"deviceListMetadata": {
"senderKeyHash": "/Etu4255Z4qTXQ==",
"senderTimestamp": "1696286095",
"recipientKeyHash": "3FmNC8uEz5OMsg==",
"recipientTimestamp": "1697088112"
},
"deviceListMetadataVersion": 2
}
}
}
],
"type": "notify"
}
},
"instanceKey": "123"
}

Problem

Currently, sending a message is linked only to sending a deposit message. It is necessary to make the message sending command generic for any type of message.

One piece of advice is to use an abstract class to represent the message and a class for each type of message that is to be sent.