A python script that picks up the latest post from an RSS feed to send it as an email newsletter.
The code finds the email addresses either from a subscription manager built with Node-RED (using an API) or from a CSV file. It generates the unsubscribe link with data from the server.
This would be a v1.0 if the script could work without fetching the addresses from the subscription manager.
By default, the script fetches email addresses from an API endpoint provided by a subscription manager:
# Fetch email addresses
# Determine the URL where to get the list of emails and authenticate with bearer token
url = os.getenv('URL_FETCH_SUBSCRIBERS')
if not args.send:
url += '/dry-run'
headers = { 'Authorization': f'Bearer {subscribers_bearer_token}' }
response = requests.post(url, headers=headers)
email_addresses = response.text.split(', ')If you use Node-RED, you can import the file nodered__subscription_manager_flow.json and configure it to match your domain.
Alternatively, you can now load email addresses from a CSV file using the --csv argument.
If you prefer not to use the API, you can supply a CSV file containing the email addresses. The CSV file should have one email address per line.
Example of CSV usage:
# Load email addresses from a CSV file
email_addresses = []
with open(args.csv, newline='') as csvfile:
reader = csv.reader(csvfile)
for row in reader:
email_addresses.append(row[0])
Testing the email
newsletter.py --feed https://WEBSITE.COM/feed
Running the script without the --send argument will add /dry-run to the url_fetch_subscribers and expects to get a list of dummy emails that will be used for testing the resulting email.
Sending the email with API
newsletter.py --feed https://WEBSITE.COM/feed --send
Sending the email with CSV
newsletter.py --feed https://WEBSITE.COM/feed --csv /path/to/emails.csv --send
Remember to edit example.env to configure your settings.
The templates directory has two examples on how to organise and format your email with html and a simple substitution logic.
Edit this line to change the template used:
template_file_path = os.path.join(script_dir, 'templates', 'weekly-notes.html')