curl -X POST -H "Authorization: key=YOUR_SERVER_KEY" -H "Content-Type: application/json" -d '{

"notification": {

"title": "First notif",

"body": "Hello world",

"icon": "firebase-logo.png",

"click_action": "http://localhost:8081"

},

"to": "CLIENT_TOKEN"

}' "https://fcm.googleapis.com/fcm/send"

curl -X POST -H "Authorization: key=YOUR_SERVER_KEY" -H "Content-Type: application/json" -d '{

"notification": {

"title": "First notif",

"body": "Hello world",

"icon": "firebase-logo.png",

"click_action": "http://localhost:8081"

},

"to": "CLIENT_TOKEN"

}' "https://fcm.googleapis.com/fcm/send"