def send_notification(uid,result_status,image_id):
	import firebase_admin
	from firebase_admin import credentials
	from firebase_admin import db
	from firebase_admin import messaging
	# Fetch the service account key JSON file contents
	cred = credentials.Certificate('servicekey.json')

	# Initialize the app with a service account, granting admin privileges
	registration_token = db.reference('SentinelProc').child(uid).child('TokenId').get()
	print(registration_token)
	t = 'Crop Health Monitoring Result'
	if result_status=='failed0':
		b = 'Satellite and device locations could not match. We hope to solve this issue as we add more satellite constellations'
	elif result_status=='failed1':
		b = 'Processed Image contains too much incomplete information. The satellite imagery could not capture your place in its previous visit.'
	elif result_status=='failed2':
		b = 'The Health Monitoring Could not receive your coordinates proerly. Please try again.'	
	elif result_status=='send_start':
		t = 'On Demand Satellite Imagery'
		b='System has started working on your Satellite Imagery Request. You will receive an email shortly'
	else:
		b = 'The result for your field is ready. Please open the app to see it.'

# See documentation on defining a message payload.

	message = messaging.Message(
    	android=messaging.AndroidConfig(
        	priority='normal',
        	notification=messaging.AndroidNotification(
            	title=t,
            	body=b,
            	icon='ic_notification',
            	color='#006666',
		sound='notification_sound',
		tag = 'satelliteprocessingresult'
        	),
    	),
    	token=registration_token,
		data={
        	'image_id': image_id,
		'result_status': result_status
    	},
	)

# Send a message to the device corresponding to the provided
# registration token.
	try:
		response = messaging.send(message)
	except:
		print('token not found')
# Response is a message ID string.
	print('Successfully sent message:', response)                                   
	return