将文件附加到使用django-rest-framework和sendgrid发送的电子邮件

from rest_framework.views import APIView
from sendgrid.helpers.mail import Mail, Attachment
from django.core.mail import send_mail
from django.conf import settings

class FileUploadAPIView(APIView):
    def post(self, request):
        file = request.FILES.get('file')
        # 保存文件到服务器的临时目录
        file_path = 'path/to/temp/directory/' + file.name
        with open(file_path, 'wb+') as destination:
            for chunk in file.chunks():
                destination.write(chunk)

        # 创建sendgrid邮件对象
        message = Mail(
            from_email='from@example.com',
            to_emails='to@example.com',
            subject='File Attachment',
            plain_text_content='Please find the attached file.'
        )

        # 创建sendgrid附件对象
        with open(file_path, 'rb') as file:
            attachment = Attachment()
            attachment.file_content = file.read()
            attachment.file_type = file.content_type
            attachment.file_name = file.name
            attachment.disposition = 'attachment'
            message.attachment = attachment

        # 发送邮件
        try:
            sendgrid_client.send(message)
            # 发送成功后删除临时文件
            os.remove(file_path)
            return Response({'message': 'Email sent successfully.'})
        except Exception as e:
            return Response({'message': 'Failed to send email.'}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)