Python Sendgrid发送带有PDF附件文件的电子邮件 [英] Python Sendgrid send email with PDF attachment file

问题描述

我正在尝试将PDF文件附加到通过sendgrid发送的电子邮件中.

I'm trying to attach a PDF file to my email sent with sendgrid.

这是我的代码:

sg = sendgrid.SendGridAPIClient(apikey=os.environ.get('SENDGRID_API_KEY'))

from_email = Email("[e-mail]")
subject = "subject"
to_email = Email("[e-mail]")
content = Content("text/html", email_body)

pdf = open(pdf_path, "rb").read().encode("base64")
attachment = Attachment()
attachment.set_content(pdf)
attachment.set_type("application/pdf")
attachment.set_filename("test.pdf")
attachment.set_disposition("attachment")
attachment.set_content_id(number)

mail = Mail(from_email, subject, to_email, content)
mail.add_attachment(attachment)

response = sg.client.mail.send.post(request_body=mail.get())

print(response.status_code)
print(response.body)
print(response.headers)

但是，Sendgrid Python库抛出错误HTTP错误400:错误的请求.

But the Sendgrid Python library is throwing an error HTTP Error 400: Bad Request.

我的代码有什么问题?

推荐答案

我找到了解决方案.我替换了这一行:

I found a solution. I replaced this line :

pdf = open(pdf_path, "rb").read().encode("base64")

通过这个:

with open(pdf_path, 'rb') as f:
    data = f.read()

encoded = base64.b64encode(data)

现在可以使用了.我可以在set_content中发送编码文件:

Now it works. I can send encoded file in the set_content :

attachment.set_content(encoded)

注意:上面的答案适用于Sendgrid v2或更低版本.对于v3及更高版本:

Note: The answer above works for Sendgrid v2 or lower. For v3 and up use:

encoded = base64.b64encode(data).decode()

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