Allow users to upload mail using the email migration api

To allow users to upload mail using the Email Migration API, you'll need to follow these steps:

Step 1: Set up the Email Migration API

• Sign up for a Google Cloud account and enable the Gmail API.
• Create a new project and enable the Gmail API.
• Create credentials for your project (OAuth client ID and secret).
• Install the Google API Client Library for your preferred programming language.

Step 2: Implement the upload mail functionality

• Use the Gmail API's users.messages.send method to upload a new email message.
• The method requires the following parameters:
  • userId: The ID of the user who owns the email account.
  • message: The email message to be uploaded.
  • raw: The raw email message content.
• You can use the base64 encoding to encode the email message content before uploading it.

Here's an example of how you can implement the upload mail functionality in Python using the Google API Client Library:

import base64
from googleapiclient.discovery import build
from googleapiclient.errors import HttpError

# Set up the Gmail API client
service = build('gmail', 'v1', credentials=creds)

# Set up the email message
message = {
    'raw': base64.b64encode('Subject: Test Email\n\nHello, World!').decode('utf-8')
}

# Upload the email message
try:
    response = service.users().messages().send(userId='me', body={'raw': message['raw']}).execute()
    print('Email uploaded successfully!')
except HttpError as error:
    print('Error uploading email:', error)

Step 3: Integrate the upload mail functionality with your application

• Create a form or interface in your application that allows users to upload their email messages.
• Use the upload mail functionality to send the uploaded email message to the Gmail API.
• Handle any errors that may occur during the upload process.

Here's an example of how you can integrate the upload mail functionality with a simple web form:

<form action="/upload-mail" method="post" enctype="multipart/form-data">
    <input type="file" name="email" accept=".eml">
    <button type="submit">Upload Email</button>
</form>

In your application code, you can use the request object to access the uploaded email file and send it to the Gmail API:

from flask import request

@app.route('/upload-mail', methods=['POST'])
def upload_mail():
    email_file = request.files['email']
    email_content = email_file.read().decode('utf-8')
    # Upload the email message using the Gmail API
    service.users().messages().send(userId='me', body={'raw': email_content}).execute()
    return 'Email uploaded successfully!'

That's it! With these steps, you should be able to allow users to upload mail using the Email Migration API.