Develop Reference

How to read emails with Python and Gmail API

I want to get unread emails from my inbox with python code.
I set up google developer account, I made an app (I set it to DESKTOP) and I downloaded credentials.
{"installed":{"client_id":"xxx",
"project_id":"xxx",
"auth_uri":"https://accounts.google.com/o/oauth2/auth",
"token_uri":"https://oauth2.googleapis.com/token",
"auth_provider_x509_cert_url":"https://www.googleapis.com/oauth2/v1/certs",
"client_secret":"xxx",
"redirect_uris":["http://localhost"]
}
}
This is the code that I have:
import os
from google.oauth2.credentials import Credentials
from googleapiclient.discovery import build
creds = Credentials.from_authorized_user_file(os.path.expanduser('gmail_credencials.json'), ['https://www.googleapis.com/auth/gmail.readonly'])
service = build('gmail', 'v1', credentials=creds)
print(service)
messages = service.users().messages()
print(messages)
But I am getting this error:
ValueError: Authorized user info was not in the expected format, missing fields refresh_token, client_secret, client_id.
I have client_secret and client_id, but I do not have a clue where should I get refresh_token.
Does anyone else has the experience with this error?

This is a sample code based on the Google Documentation here. It has an example about the refresh token on it. I'm also listing the files emails that have the label UNREAD. After that, I get the emails with the IDs of the list, and decode the messages payload using base64. Take in consideration that this is just a sample.
from __future__ import print_function
import os.path
from google.auth.transport.requests import Request
from google.oauth2.credentials import Credentials
from google_auth_oauthlib.flow import InstalledAppFlow
from googleapiclient.discovery import build
from googleapiclient.errors import HttpError
import email
import base64 #add Base64
import time
SCOPES = ['https://www.googleapis.com/auth/gmail.readonly']
def main():
"""Shows basic usage of the Gmail API.
Lists the user's Gmail labels.
"""
creds = None
# The file token.json stores the user's access and refresh tokens, and is
# created automatically when the authorization flow completes for the first
# time.
if os.path.exists('token.json'):
creds = Credentials.from_authorized_user_file('token.json', SCOPES)
# If there are no (valid) credentials available, let the user log in.
if not creds or not creds.valid:
if creds and creds.expired and creds.refresh_token:
creds.refresh(Request())
else:
flow = InstalledAppFlow.from_client_secrets_file(
'credentials.json', SCOPES)
creds = flow.run_local_server(port=0)
# Save the credentials for the next run
with open('token.json', 'w') as token:
token.write(creds.to_json())
#Filter and get the IDs of the message I need.
#I'm just filtering messages that have the label "UNREAD"
try:
service = build('gmail', 'v1', credentials=creds)
search_id = service.users().messages().list(userId='me', labelIds="UNREAD").execute()
number_result = search_id['resultSizeEstimate']
final_list = [] # empty array, all the messages ID will be listed here
# review if the search is empty or not
# if it has messages on it, It will enter the for
if number_result>0:
message_ids = search_id['messages']
for ids in message_ids:
final_list.append(ids['id'])
# call the function that will call the body of the message
get_message(service, ids['id'] )
return final_list
# If there are not messages with those criterias
#The message 'There were 0 results for that search string' will be printed.
else:
print('There were 0 results for that search string')
return ""
except HttpError as error:
# TODO(developer) - Handle errors from gmail API.
print(f'An error occurred: {error}')
#new function to get the body of the message, and decode the message
def get_message(service, msg_id):
try:
message_list=service.users().messages().get(userId='me', id=msg_id, format='raw').execute()
msg_raw = base64.urlsafe_b64decode(message_list['raw'].encode('ASCII'))
msg_str = email.message_from_bytes(msg_raw)
content_types = msg_str.get_content_maintype()
#how it will work when is a multipart or plain text
if content_types == 'multipart':
part1, part2 = msg_str.get_payload()
print("This is the message body, html:")
print(part1.get_payload())
return part1.get_payload()
else:
print("This is the message body plain text:")
print(msg_str.get_payload())
return msg_str.get_payload()
except HttpError as error:
# TODO(developer) - Handle errors from gmail API.
print(f'An error occurred: {error}')
if __name__ == '__main__':
main()
Reference:
Method: users.messages.list
Method: users.messages.get
Format
Google Documentation "Python quickstart"
base64 Python

Trying to append data to google sheets via google sheets API in Python

My intentions are to put the data extracted from places API into google sheets.
I have followed a lot of methods including using gspread library and making a service account and then authorizing it.
I am currently trying with the service account where I have passed on the credentials, built a service request, and then executed it. However, it is throwing me the following error Invalid JSON payload received. Unknown name
What am I doing wrong?
I wanted to append data in google sheets but I am getting an error.
Code
from __future__ import print_function
import requests
import urllib.parse as urlparse
from googleapiclient import discovery
import os.path
from google.auth.transport.requests import Request
from google.oauth2.credentials import Credentials
from google_auth_oauthlib.flow import InstalledAppFlow
from googleapiclient.discovery import build
from googleapiclient.errors import HttpError
SCOPES = ['https://www.googleapis.com/auth/spreadsheets',
'https://www.googleapis.com/auth/drive',
'https://www.googleapis.com/auth/drive.file']
# The ID and range of a sample spreadsheet.
SAMPLE_SPREADSHEET_ID = '1_oKFw7gYmUWDUZxZ6Dgo1uLM9Tf_Bc-4bnq4jiJbQUs'
SAMPLE_RANGE_NAME = 'Sheet1'
creds = None
if not creds or not creds.valid:
if creds and creds.expired and creds.refresh_token:
creds.refresh(Request())
else:
flow = InstalledAppFlow.from_client_secrets_file(
'credentials.json', SCOPES)
creds = flow.run_local_server(port=0)
# Save the credentials for the next run
with open('token.json', 'w') as token:
token.write(creds.to_json())
spreadsheet_id = '***************'
range_ = 'Sheet1!'
value_input_option = 'RAW'
service = discovery.build('sheets', 'v4', credentials=creds)
value_range_body = ['a']
request = service.spreadsheets().values().append(spreadsheetId=spreadsheet_id, range=range_,
valueInputOption=value_input_option, body=value_range_body)
response = request.execute()
Error
<HttpError 400 when requesting
https://sheets.googleapis.com/v4/spreadsheets/1_oKFw7gYmUWDUZxZ6Dgo1uLM9Tf_Bc-4bnq4jiJbQUs/values/Sheet1%21:append?valueInputOption=RAW&alt=json returned "Invalid JSON payload received. Unknown name "": Root element
must be a message.". Details: "[{'#type':
'type.googleapis.com/google.rpc.BadRequest', 'fieldViolations':
[{'description': 'Invalid JSON payload received. Unknown name "": Root
element must be a message.'}]}]">

The error is related to how value_range_body is parse. If you want to use the method spreadsheets.values.append, you can base you code in the following sample:
Note: the sample code that I'm using is base on a database, and using OAuth, but the request body should be the same
from __future__ import print_function
import os.path
from google.auth.transport.requests import Request
from google.oauth2.credentials import Credentials
from google_auth_oauthlib.flow import InstalledAppFlow
from googleapiclient.discovery import build
from googleapiclient.errors import HttpError
# If modifying these scopes, delete the file token.json.
SCOPES = ['https://www.googleapis.com/auth/drive.file',
'https://www.googleapis.com/auth/drive',
'https://www.googleapis.com/auth/spreadsheets' ]
# The ID and range of a sample spreadsheet.
spreadsheetId = 'sheetID'
def main():
creds = None
if os.path.exists('token.json'):
creds = Credentials.from_authorized_user_file('token.json', SCOPES)
if not creds or not creds.valid:
if creds and creds.expired and creds.refresh_token:
creds.refresh(Request())
else:
flow = InstalledAppFlow.from_client_secrets_file(
'credentials.json', SCOPES)
creds = flow.run_local_server(port=0)
with open('token.json', 'w') as token:
token.write(creds.to_json())
try:
service = build('sheets', 'v4', credentials=creds)
# 'records_df' is the variable with the data that will be inserted in the Sheet.
# In your case it will be the data coming from places API
records_db = [['2023-01-18', '1234', 'ABC', 1234],
['2023-01-17', '5678', 'DEF', 5678],
['2023-01-16', '9012', 'ABC', 9012]]
# 'range_db' is the range of the where the data will be added.
range_db = "Sheet1"
value_input_option = "RAW"
insert_data_option = "INSERT_ROWS"
# This is the 'value_range_body' or JSON
value_range_body = {
"majorDimension": "ROWS",
"values": records_db,
}
request = service.spreadsheets().values().append(spreadsheetId=spreadsheetId,
range=range_db,
valueInputOption=value_input_option,
insertDataOption=insert_data_option,
body=value_range_body)
response = request.execute()
except HttpError as err:
print(err)
if __name__ == '__main__':
main()

How to Capture The OAuth Redirect to POST A Response

So my colleague and I have an application whereby we need to capture the OAuth Redirect from Google's OAuth Server Response, the reason being is we need to send a payload to capture to renew our pickle token, and we need to do it without human intervention. The code looks like this:
#!/usr/bin/env python3
import pickle
import os.path
import pandas as pd
import requests
from googleapiclient.discovery import build
from google_auth_oauthlib.flow import InstalledAppFlow
from google.auth.transport.requests import Request
import base64
from datetime import datetime, timedelta
from urllib.parse import unquote
from bs4 import BeautifulSoup
# If modifying these scopes, delete the file token.pickle.
SCOPES = ['https://www.googleapis.com/auth/gmail.readonly']
def search_message(service, user_id, search_string):
"""
Search the inbox for emails using standard gmail search parameters
and return a list of email IDs for each result
PARAMS:
service: the google api service object already instantiated
user_id: user id for google api service ('me' works here if
already authenticated)
search_string: search operators you can use with Gmail
(see https://support.google.com/mail/answer/7190?hl=en for a list)
RETURNS:
List containing email IDs of search query
"""
try:
# initiate the list for returning
list_ids = []
# get the id of all messages that are in the search string
search_ids = service.users().messages().list(userId=user_id, q=search_string).execute()
# if there were no results, print warning and return empty string
try:
ids = search_ids['messages']
except KeyError:
print("WARNING: the search queried returned 0 results")
print("returning an empty string")
return ""
if len(ids) > 1:
for msg_id in ids:
list_ids.append(msg_id['id'])
return (list_ids)
else:
list_ids.append(ids['id'])
return list_ids
except:
print("An error occured: %s")
def get_message(service, user_id, msg_id):
"""
Search the inbox for specific message by ID and return it back as a
clean string. String may contain Python escape characters for newline
and return line.
PARAMS
service: the google api service object already instantiated
user_id: user id for google api service ('me' works here if
already authenticated)
msg_id: the unique id of the email you need
RETURNS
A string of encoded text containing the message body
"""
try:
final_list = []
message = service.users().messages().get(userId=user_id, id=msg_id).execute() # fetch the message using API
payld = message['payload'] # get payload of the message
report_link = ""
mssg_parts = payld['parts'] # fetching the message parts
part_one = mssg_parts[1] # fetching first element of the part
#part_onee = part_one['parts'][1]
#print(part_one)
part_body = part_one['body'] # fetching body of the message
part_data = part_body['data'] # fetching data from the body
clean_one = part_data.replace("-", "+") # decoding from Base64 to UTF-8
clean_one = clean_one.replace("_", "/") # decoding from Base64 to UTF-8
clean_one = clean_one.replace("amp;", "") # cleaned amp; in links
clean_two = base64.b64decode(clean_one) # decoding from Base64 to UTF-8
soup = BeautifulSoup(clean_two, features="html.parser")
for link in soup.findAll('a'):
if "talentReportRedirect?export" in link.get('href'):
report_link = link.get('href')
break
final_list.append(report_link) # This will create a dictonary item in the final list
except Exception:
print("An error occured: %s")
return final_list
def get_service():
"""
Authenticate the google api client and return the service object
to make further calls
PARAMS
None
RETURNS
service api object from gmail for making calls
"""
creds = None
# The file token.pickle stores the user's access and refresh tokens, and is
# created automatically when the authorization flow completes for the first
# time.
if os.path.exists('token.pickle'):
with open('token.pickle', 'rb') as token:
creds = pickle.load(token)
# If there are no (valid) credentials available, let the user log in.
if not creds or not creds.valid:
if creds and creds.expired and creds.refresh_token:
creds.refresh(Request())
else:
flow = InstalledAppFlow.from_client_secrets_file('credentials.json', SCOPES)
creds = flow.run_local_server(port=0)
# Save the credentials for the next run
with open('token.pickle', 'wb') as token:
pickle.dump(creds, token)
auth_link = build('gmail', 'v1', credentials=creds)
parsed_url = unquote(auth_link).split('redirect')[-1]
return parsed_url
def get_report(link_array):
for link in link_array:
df = requests.get(link[0], allow_redirects=True)
# df.encoding
# dt = pd.DataFrame(data=df)
print(link)
# upload_to_database(df) -- Richard Barret please update this function
print(df.text)
## dt.to_csv(r'C:\Users\user\Desktop\api_gmail.csv', sep='\t',header=True)
if __name__ == "__main__":
link_list = []
monday = datetime(2022,12,5)#datetime.now() - timedelta(days=datetime.now().weekday())
thursday = datetime(2022,12,8)#datetime.now() - timedelta(days=datetime.now().weekday() - 3)
query = 'from:messages-noreply#linkedin.com ' + 'after:' + monday.strftime('%Y/%m/%d') + ' before:' + thursday.strftime('%Y/%m/%d')
service = get_service()
mssg_list = search_message(service, user_id='me', search_string=query)
for msg in mssg_list:
link_list.append(get_message(service, user_id='me', msg_id=msg))
get_report(link_list)
It is assumed that you have a directory structure like this:
├── credentials.json
├── gmail_api_linkedin.py
└── requirements.txt
Obviously, you won't have the credentials.json file, but in essence, the code works and redirects us to a login page to retrieve the new pickle:
The main thing is we can't interact with that in an autonomous fashion. As such, how can we capture the URL from the server that prints out the following information the is differenter every single time.
Please visit this URL to authorize this application: https://accounts.google.com/o/oauth2/auth?response_type=code&client_id=212663976989-96o952s9ujadjgfdp6fm0p462p37opml.apps.googleusercontent.com&redirect_uri=http%3A%2F%2Flocalhost%3A58605%2F&scope=https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fgmail.readonly&state=ztJir0haFQlvTP79BRthhmEHlSsqIj&access_type=offline
More succinctly, how can we capture the URL in a pythonic manner to send POST and PUT requests to that redirect?

renew our pickle token
I still do not understand why you feel the need to renew your token pickle.
how it all works.
The following example will spawn the consent screen directly on the machine its running on. It then stores the token within the token.json file
token.json
This file contains all the information needed by the script to run. It can automatically request a new access token when ever it needs.
{
"token": "[REDACTED]",
"refresh_token": "[REDACTED]",
"token_uri": "https://oauth2.googleapis.com/token",
"client_id": "[REDACTED]",
"client_secret": "[REDACTED],
"scopes": [
"https://mail.google.com/"
],
"expiry": "2023-01-03T19:06:13.959468Z"
}
gmail quickstart.
# To install the Google client library for Python, run the following command:
# pip install --upgrade google-api-python-client google-auth-httplib2 google-auth-oauthlib
from __future__ import print_function
import os.path
import google.auth.exceptions
from google.auth.transport.requests import Request
from google.oauth2.credentials import Credentials
from google_auth_oauthlib.flow import InstalledAppFlow
from googleapiclient.discovery import build
from googleapiclient.errors import HttpError
# If modifying these scopes, delete the file token.json.
SCOPES = ['https://mail.google.com/']
def main():
"""Shows basic usage of the Gmail v1 API.
Prints a list of user messages.
"""
creds = None
# The file token.json stores the user's access and refresh tokens, and is
# created automatically when the authorization flow completes for the first
# time.
if os.path.exists('token.json'):
try:
creds = Credentials.from_authorized_user_file('token.json', SCOPES)
creds.refresh(Request())
except google.auth.exceptions.RefreshError as error:
# if refresh token fails, reset creds to none.
creds = None
print(f'An error occurred: {error}')
# If there are no (valid) credentials available, let the user log in.
if not creds or not creds.valid:
if creds and creds.expired and creds.refresh_token:
creds.refresh(Request())
else:
flow = InstalledAppFlow.from_client_secrets_file(
'C:\YouTube\dev\credentials.json', SCOPES)
creds = flow.run_local_server(port=0)
# Save the credentials for the next run
with open('token.json', 'w') as token:
token.write(creds.to_json())
try:
service = build('gmail', 'v1', credentials=creds)
# Call the Gmail v1 API
results = service.users().messages().list(
userId='me').execute()
messages = results.get('messages', [])
if not messages:
print('No messages found.')
return
print('Messages:')
for message in messages:
print(u'{0} ({1})'.format(message['id'], message['threadId']))
except HttpError as error:
# TODO(developer) - Handle errors from gmail API.
print(f'An error occurred: {error}')
if __name__ == '__main__':
main()
expired refresh token.
If your issue is in fact that your refresh tokens are expiring this is because your app is currently in the testing phase. If you set your app to production then your refresh tokens will stope expiring.

Upgrading a Python Script from oauth2client to google-auth

I would like to upgrade the following code from oauth2client to google-auth. Yes, this code does work and is a copy paste from the Google demo on their site.
from __future__ import print_function
from googleapiclient.discovery import build
from httplib2 import Http
from oauth2client import file, client, tools
# If modifying these scopes, delete the file token.json.
SCOPES = 'https://www.googleapis.com/auth/presentations.readonly'
# The ID of a sample presentation.
PRESENTATION_ID = '<some id>'
def main():
"""Shows basic usage of the Slides API.
Prints the number of slides and elments in a sample presentation.
"""
# The file token.json stores the user's access and refresh tokens, and is
# created automatically when the authorization flow completes for the first
# time.
# delete the file to for authentication and authorization again
store = file.Storage('token.json')
creds = store.get()
if not creds or creds.invalid:
# credentials.json is issued by Google for the application
flow = client.flow_from_clientsecrets('credentials.json', SCOPES)
creds = tools.run_flow(flow, store)
service = build('slides', 'v1', http=creds.authorize(Http()))
# Call the Slides API
presentation = service.presentations().get(presentationId=PRESENTATION_ID).execute()
slides = presentation.get('slides')
print('The presentation contains {} slides:'.format(len(slides)))
for i, slide in enumerate(slides):
print('- Slide #{} contains {} elements.'.format(
i + 1, len(slide.get('pageElements'))))
if __name__ == '__main__':
main()
I was able to upgrade most of it (I think) but could not find the equivalent for tools.run_flow using google-auth. Below is my upgraded version, and it has everything (I think) except the mechanism to do tools.run_flow. How is tools.run_flow accomplished using google-auth?
from google.oauth2 import service_account
from google.auth.transport.requests import AuthorizedSession
from googleapiclient.discovery import build
SCOPES = ['https://www.googleapis.com/auth/presentations.readonly']
PRESENTATION_ID = '<some id>'
credentials = service_account.Credentials.from_service_account_file(
"the-json-file.json",
scopes=SCOPES
)
service = build('slides', 'v1', credentials=credentials)
presentation = service.presentations().get(presentationId=PRESENTATION_ID).execute()
slides = presentation.get('slides')
print('The presentation contains {} slides:'.format(len(slides)))
for i, slide in enumerate(slides):
print('- Slide #{} contains {} elements.'.format(
i + 1, len(slide.get('pageElements'))))
When I run the above code using the google-auth approach, I get the following result:
googleapiclient.errors.HttpError: <HttpError 403 when requesting https://slides.googleapis.com/v1/presentations/<some id>?alt=json returned "The caller does not have permission">
Additional context, I am trying to build a Python script which accesses Google Slides to perform some processing on slide content. I am reading only, not writing to Google Slides. The code above is my attempt to handle the authentication and authorization part of accessing the Google Slides content for my GSuite account (I am the admin of my organization's GSuite). The first example using the older oauth2client works great, but since oauth2client is deprecated and google-auth is recommended I would like to do it the "right" way using the latest library.
UPDATE
I resolved part of my problem with the following code:
from google.oauth2 import service_account
from google.auth.transport.requests import AuthorizedSession
from googleapiclient.discovery import build
from google.oauth2.credentials import Credentials
from google_auth_oauthlib.flow import InstalledAppFlow
import os
import json
def get_credentials():
CLIENT_SECRET_FILE = '<some file>'
SCOPES = ['https://www.googleapis.com/auth/presentations.readonly']
credentials_path = '<some path>/token.json'
if os.path.exists(credentials_path):
# expect these to be valid. may expire at some point, but should be refreshed by google api client...
return Credentials.from_authorized_user_file(credentials_path, scopes=SCOPES)
else:
flow = InstalledAppFlow.from_client_secrets_file(
CLIENT_SECRET_FILE,
scopes=SCOPES,
redirect_uri='urn:ietf:wg:oauth:2.0:oob')
auth_url, _ = flow.authorization_url(prompt='consent')
print('Please go to this URL and finish the authentication flow: {}'.format(auth_url))
code = input('Enter the authorization code: ')
flow.fetch_token(code=code)
credentials = flow.credentials
credentials_as_dict = {
'token': credentials.token,
'refresh_token': credentials.refresh_token,
'id_token': credentials.id_token,
'token_uri': credentials.token_uri,
'client_id': credentials.client_id,
'client_secret': credentials.client_secret
}
with open(credentials_path, 'w') as file:
file.write(json.dumps(credentials_as_dict))
return credentials
# The ID of a sample presentation.
PRESENTATION_ID = '<some id>'
service = build('slides', 'v1', credentials=get_credentials())
presentation = service.presentations().get(presentationId=PRESENTATION_ID).execute()
slides = presentation.get('slides')
print('The presentation contains {} slides:'.format(len(slides)))
for i, slide in enumerate(slides):
print('- Slide #{} contains {} elements.'.format(
i + 1, len(slide.get('pageElements'))))
My challenge now is causing the web browser to open automatically. I can copy and paste the link and get the code manually and it all works. Ideally, I would like the automatic opening of the web browser and capturing of the token like it did in the older library.
SOLVED
Update a section code in the previous code sample to this:
flow = InstalledAppFlow.from_client_secrets_file(
CLIENT_SECRET_FILE,
scopes=SCOPES,
redirect_uri='urn:ietf:wg:oauth:2.0:oob')
credentials = flow.run_local_server()
credentials_as_dict = {
'token': credentials.token,
'refresh_token': credentials.refresh_token,
'id_token': credentials.id_token,
'token_uri': credentials.token_uri,
'client_id': credentials.client_id,
'client_secret': credentials.client_secret
}
Web browser opens automatically and captures the token value. All is good.

GMAIL API: new_request() takes at most 1 positional argument (2 given)

I am using gmail api. I am getting the following warning:
new_request() takes at most 1 positional argument (2 given)
from this code:
message = GMAIL.users().messages().get(userId=user_id, id=m_id).execute() # fetch the message using API
Here is my full code (mostly taken from gmail API):
"""
Shows basic usage of the Gmail API.
Lists the user's Gmail labels.
"""
from __future__ import print_function
from apiclient.discovery import build
from httplib2 import Http
from oauth2client import file, client, tools
from apiclient.discovery import build
from oauth2client.file import Storage
from oauth2client.client import OAuth2WebServerFlow
from oauth2client.tools import run_flow, argparser
from oauth2client import tools
from colorama import Fore, Back, Style
from colorama import init
# use Colorama to make Termcolor work on Windows too
init()
# Setup the Gmail API
def get_credentials():
store = file.Storage('credentials.json')
creds = store.get()
flow = OAuth2WebServerFlow(
client_id='845-ehe.apps.googleusercontent.com',
client_secret='curo',
scope = 'https://www.googleapis.com/auth/gmail.modify',
user_agent='people_cal2sms')
if not creds or creds.invalid:
flags = tools.argparser.parse_args(args=[])
creds = tools.run_flow(flow, store, flags)
service = build('gmail', 'v1', http=creds.authorize(Http()))
# Importing required libraries
from apiclient import discovery
# Creating a storage.JSON file with authentication details
SCOPES = 'https://www.googleapis.com/auth/gmail.modify' # we are using modify and not readonly, as we will be marking the messages Read
store = file.Storage('storage.json')
creds = store.get()
if not creds or creds.invalid:
flags = tools.argparser.parse_args(args=[])
flow = client.flow_from_clientsecrets('client_secret.json', SCOPES)
creds = tools.run_flow(flow, store, flags)
GMAIL = discovery.build('gmail', 'v1', http=creds.authorize(Http()))
user_id = 'me'
label_id_one = 'INBOX'
# Getting all the unread messages from Inbox
# labelIds can be changed accordingly
unread_msgs = GMAIL.users().messages().list(userId='me',labelIds=[label_id_one], q="label:clinic_sms after:2018/9/14").execute()
# We get a dictonary. Now reading values for the key 'messages'
mssg_list = unread_msgs.get('messages', [])
print ("Total unread messages in inbox: ", str(len(mssg_list)))
final_message_dict_list = [ ]
def retrieve_phone_2_gmail_message_dict():
phone_2_gmail_message_dict = {}
for mssg in mssg_list:
message_dict = { }
m_id = mssg['id'] # get id of individual message
message = GMAIL.users().messages().get(userId=user_id, id=m_id).execute() # fetch the message using API