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Prerequisites

To get the most out of this guide, you’ll need to:

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1. Install

Get the Resend Python SDK.

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2. Send email using HTML

The easiest way to send an email is by using the html parameter.

main.py
import resend
from typing import Dict
from fastapi import FastAPI

resend.api_key = "re_123456789"

app = FastAPI()

@app.post("/")
def send_mail() -> Dict:
    params: resend.Emails.SendParams = {
        "from": "onboarding@resend.dev",
        "to": ["delivered@resend.dev"],
        "subject": "Hello World",
        "html": "<strong>it works!</strong>",
    }
    email: resend.Email = resend.Emails.send(params)
    return email

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3. Try it yourself

FastAPI Example

See the full source code.

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