Token_Structure.js

exports.AccessTokenBot = functions.region(region).runWith(runtimeOpts).https.onRequest(async (req, res) => {
    let event = req.body.events[0]
    switch (event.type) {
        case 'message':
            if (event.message.type === 'text') {
                if(event.message.text === 'register') {
                    // 6. Call API for Create Access Token
                    // 7. Initialize LINE Header
                    // 8. Store Access Token to Real Time Database
                    // 9. Reply result to User Chat Room
                    
                } else if(event.message.text === 'revoke') {
                    // 10. Get Access Token in Real Time Database
                    // 11. Initialize LINE Header
                    // 12. Remove Access Token from RTDB
                    // 13. Reply result to User Chat Room
                    // 14. Revoke Access Token
                }
            }
        break;
    }
    res.status(200).send("ok").end();
});