firebase Push notification from custom server Firebase Cloud Messaging HTTP Protocol
Example
From your server request to the the link below to send the notification with some request parameters
https://fcm.googleapis.com/fcm/send
While requesting add headers as follows
Authorization key=<Your_key_from_the_console>
Content-Type application/json
The body of the request varies
{
"to" : <tokens or the topic>,
"notification" : {
"title":"This is a test title",
"body":"This is the body"
},
"data": {
//whatever key value payer you need to send
}
}
The to parameters takes Array of tokens like
["token1","token2",..........]
or a single token like
"token"
or a topic name starting with /topic/ like
"/topic_name/"
For multiple topic use conditions using || and && operators like
"/topic_name/ && /topic2/"
