40 lines
1.2 KiB
Python
40 lines
1.2 KiB
Python
from __future__ import annotations
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import logging
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from typing import Any
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import resend
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from flask import current_app
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class EmailConfigurationError(RuntimeError):
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"""Raised when transactional email has not been configured."""
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class EmailDeliveryError(RuntimeError):
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"""Raised when Resend rejects or cannot deliver an email request."""
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def send_transactional_email(*, to: str, subject: str, html: str) -> dict[str, Any]:
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"""Send one application-generated email through Resend."""
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api_key = current_app.config["RESEND_API_KEY"]
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from_email = current_app.config["RESEND_FROM_EMAIL"]
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if not api_key or not from_email:
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raise EmailConfigurationError(
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"邮件服务尚未配置，请设置 RESEND_API_KEY 和 RESEND_FROM_EMAIL。"
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)
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resend.api_key = api_key
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try:
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return resend.Emails.send(
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{
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"from": from_email,
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"to": [to],
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"subject": subject,
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"html": html,
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}
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)
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except Exception as exc:
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logging.exception("Resend 邮件发送失败: %s", exc)
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raise EmailDeliveryError("邮件发送失败，请稍后重试。") from exc
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