Usage of legacy API

[rodolfoamarques]

Describe your environment

• Operating System version: all
• Firebase SDK version: latest (12.2.0)
• Firebase Product: FCM
• Node.js version: all
• NPM version: all

Describe the problem

the messaging().send() method continues to utilise the old API even though it has been deprecated since 2023 and removed since June 2024 as per this documentation

Steps to reproduce:

Calls/Usage of the above method results in a TOPIC_MESSAGE_RATE_EXCEEDED error.

Relevant Code:

in this very repository we can find the following code:

const FCM_SEND_HOST = 'fcm.googleapis.com';
const FCM_SEND_PATH = '/fcm/send';
const FCM_TOPIC_MANAGEMENT_HOST = 'iid.googleapis.com';
const FCM_TOPIC_MANAGEMENT_ADD_PATH = '/iid/v1:batchAdd';
const FCM_TOPIC_MANAGEMENT_REMOVE_PATH = '/iid/v1:batchRemove';

According to the latest documentation, the API to be used should be https://fcm.googleapis.com/v1/projects/{PROJECT_ID}/messages:send

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[devj3ns]

related: #2602

[lahirumaramba]

Thanks @devj3ns !

Hey folks, please see my response in #2602 (comment)

The deprecated endpoints mentioned in the issue are being used in sendToTopic and sendToCondition` APIs. These APIs are now deprecated in v12.4.0+