Function send_email

apps/api/src/services/email/utils.py:204–224

(to: EmailStr, subject: str, body: str)

def send_email(to: EmailStr, subject: str, body: str):
    from fastapi import HTTPException

    lh_config = get_learnhouse_config()
    mailing = lh_config.mailing_config
    sender = f"LearnHouse <{mailing.system_email_address}>"

    # Resend (and most providers) require a plain `email@example.com` string.
    # Pydantic's EmailStr is a str subclass, but third-party JSON serializers
    # can mis-handle it — coerce to a stripped plain str and validate shape
    # so a malformed stored email surfaces here rather than as an opaque
    # provider 4xx.
    to_addr = str(to).strip()
    if not to_addr or "@" not in to_addr:
        logger.error("Refusing to send email: invalid recipient %r", to)
        raise HTTPException(status_code=400, detail="Invalid recipient email address")

    if mailing.email_provider == "smtp":
        return _send_email_smtp(sender, to_addr, subject, body, mailing)
    else:
        return _send_email_resend(sender, to_addr, subject, body, mailing)


def _send_email_resend(sender: str, to: str, subject: str, body: str, mailing):