95 lines
3.0 KiB
Python
95 lines
3.0 KiB
Python
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"""SendGrid email provider implementation."""
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import logging
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import requests
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from flask import current_app
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from gatehouse_app.services.email_provider import EmailMessage, EmailProvider
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logger = logging.getLogger(__name__)
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class SendGridEmailProvider(EmailProvider):
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"""SendGrid API-based email provider implementation."""
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# Configuration keys
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SENDGRID_API_KEY = "SENDGRID_API_KEY"
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SENDGRID_FROM_EMAIL = "SENDGRID_FROM_EMAIL"
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FROM_ADDRESS = "FROM_ADDRESS"
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API_URL = "https://api.sendgrid.com/v3/mail/send"
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def send(self, message: EmailMessage) -> bool:
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"""Send an email via SendGrid API.
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Args:
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message: EmailMessage instance containing email details
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Returns:
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bool: True if email was sent successfully, False otherwise
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"""
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api_key = current_app.config.get(self.SENDGRID_API_KEY)
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default_from = current_app.config.get(self.SENDGRID_FROM_EMAIL)
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fallback_from = current_app.config.get(self.FROM_ADDRESS)
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if not api_key:
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logger.error(
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f"[SENDGRID] Cannot send — missing SENDGRID_API_KEY config. "
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f"Would have sent to: {message.to} | Subject: {message.subject}"
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)
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return False
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from_address = message.from_address or default_from or fallback_from
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if not from_address:
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logger.error(
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f"[SENDGRID] Cannot send — missing from address (SENDGRID_FROM_EMAIL or FROM_ADDRESS). "
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f"Would have sent to: {message.to} | Subject: {message.subject}"
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)
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return False
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payload = {
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"personalizations": [
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{
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"to": [{"email": message.to}]
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}
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],
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"from": {"email": from_address},
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"subject": message.subject,
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"content": [
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{
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"type": "text/plain",
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"value": message.body
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}
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]
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}
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if message.html_body:
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payload["content"].append({
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"type": "text/html",
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"value": message.html_body
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})
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try:
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response = requests.post(
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self.API_URL,
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json=payload,
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headers={
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"Authorization": f"Bearer {api_key}",
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"Content-Type": "application/json"
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}
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)
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if response.status_code == 202:
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logger.info(f"[SENDGRID] Sent to {message.to} | Subject: {message.subject}")
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return True
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else:
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logger.error(
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f"[SENDGRID] Failed to send to {message.to}: "
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f"status={response.status_code} body={response.text}"
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)
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return False
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except Exception as e:
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logger.error(f"[SENDGRID] Exception while sending to {message.to}: {e}")
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return False
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