Send android push notification to app or open app from deeplink using ADB (Android Debug Bridge)

send_app_notification_or_deeplink.py

#!/usr/bin/env python3

'''
!!! Required adb PATH on env var !!!

[Usage]
Run with python:
$ python3 send_push_or_deeplink.py
or add exec permission
$ chmod +x send_push_or_deeplink.py
and run ever
$ ./send_push_or_deeplink.py
'''
import os

params=[]
commands=''

app=input("Input app package-name (e.g com.myapp.name)> ")
select=input('\n[1] Push Notification -- [2] Deeplink\n')

if select == "1":

    while True:
        data=input("Add data (key, value) or [enter] to run:\n")
        if len(data) == 0:
            break
        data=data.split(",")
        params.append("\"{}\" \"{}\"".format(data[0], data[1]))

    commands='adb shell am broadcast -n {}/com.google.firebase.iid.FirebaseInstanceIdReceiver'.format(app)
    commands+=' -c {} -a com.google.android.c2dm.intent.RECEIVE '.format(app)

    for param in params: commands+=' --es {}'.format(param)

elif select == "2":
    deeplink=input('Input deeplink::> ').replace("&","\&")
    commands=('adb shell am start -a android.intent.action.VIEW -d "{}" {}'.format(deeplink, app))
else:
    print('Invalid option. Bye! 😥')
    exit()
    
os.system(commands)

No root required 😎

It is possible to send FCM payloads via adb.

While it is true that the permission com.google.android.c2dm.permission.SEND is a problem, there's a workaround.

Gradle adds the FirebaseInstanceIdReceiver to the merged manifest. the workaround is to add your own copy to the manifest and override the permission using the tools:replace="android:permission" and android:permission="@null"

Add it on your debug AndroidManifest.xml!

Do it only in debug builds either via gradle's manifest placeholder or a separate AndroidManifest.xml in your debug/develop builds.

<receiver
    android:name="com.google.firebase.iid.FirebaseInstanceIdReceiver"
    android:exported="true"
    android:permission="@null"
    tools:replace="android:permission">
    <intent-filter>
        <action android:name="com.google.android.c2dm.intent.RECEIVE" />
        <category android:name="com.app.debug" />
    </intent-filter>
</receiver>

[reference]
https://stackoverflow.com/questions/40289999/how-to-send-fcm-firebase-cloud-messaging-push-notification-from-adb-to-device