Asynchronous Response from python class function

Question

I was able to successfully use an Mailgun example to send an e-mail, but when converting to a class, the e-mails are not being sent. I am assuming that it has to do with the Asynchronous Response but I am not not sure. This is my first time working with Asynchronous Response and AsyncClient.

This is the class:

class Mail:

     def __init__(self):
         self.base_url = 'https://api.mailgun.net/v3/{url}'
         self.api_key = '{Key}'
         self.lstAttachment = []
         self.built = False
     def BuildMail(self):
         self.build_request_kwargs = {
                "url": "/messages",
                "method": "POST",
                "data": {
                        #"template": "template_name",
                        "from": "[email protected]",
                        "to": ["[email protected]"],
                        "subject": "Python E-mail Send",
                        "html": "<p>Hello from Python</p>"
                        },
                "files": self.lstAttachment
         }

      async def SendMail(self):
    
         if self.built == True:    
             client = httpx.AsyncClient(base_url=self.base_url, auth=("api", self.api_key))       
             return await self.__MsgSend(client)
    
         else:
             return 'Msg Not Built'


     async def __MsgSend(self, client):
         async with client as C: 
             request = C.build_request(**self.build_request_kwargs)
             response = await C.send(request)
             response.raise_for_status()
         return response

Then inside my main script:

Email = M.Mail()
Email.BuildMail()
result = Email.SendMail()

What I would expect is that the message would get sent and the response to be returned to the main script.

When using async functions, you need to run them using an event loop, e.g. asyncio.run. Are you doing that anywhere? — deceze
– deceze ♦, Commented May 15, 2023 at 13:56

Jab · Accepted Answer · 2023-05-15 13:58:09Z

0

You are not awaiting the async function Mail.SendMail. Also I don't see anywhere you are using asyncio.run Try something like this:

async def main():
    Email = M.Mail()
    Email.BuildMail()
    result = await Email.SendMail()

asyncio.run(main())

answered May 15, 2023 at 13:58

Jab

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