Stream file is showed as plain/text (instead of plainhtml) #194

ernitron · 2024-01-03T19:27:32Z

ernitron
Jan 3, 2024

First of all KUDOS to Miguel for this awesome piece of art. I have it running on ESP8266 (frozen code) and ESP32 and it shines!

I manage to send file (I have my own template that substitutes patterns like {{contents}} found in file (code is below). I use stream with generating function that read the file, substitute the content and yields file line by line. And it works!
However, whatever I do to convince Microdot that is a plain/html the browser don't get and shows as plain/text. If I refresh page is rendered correctly. What am I doing wrong here?

Code snippet:

def rendertemplate(template='template.html', **key):
    from Microdot import Response
     Response.default_content_type = 'text/html'
     try:
         with open(template, 'r') as f:
             for line in f.readlines():
                 for k in key:
                     tag = "{{%s}}" % k # e.g builds tag: {{content}}
                     if tag in line:
                         line = line.replace(tag, key[k])
                 yield line
     except Exception as e:
         yield str(e)

ernitron · 2024-01-03T19:38:26Z

ernitron
Jan 3, 2024
Author

Maybe to complete the issue I should also add some more snippets:

@app.get('/helloworld')
async def helloworld(request):
    content = 'Hello, World!'
    return rendertemplate(content=content)

Template is as simple as:

<!doctype html>
<html lang="en">
<head>
</head>
<body>
{{content}}
</body></html>

1 reply

miguelgrinberg Jan 3, 2024
Maintainer

This line:

Response.default_content_type = 'text/html'

Should be in the global scope, not inside your template rendering function. If you want the response to be HTML only for some endpoints but not all, then add a Content-Type header explicitly in the endpoints that you want.

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Stream file is showed as plain/text (instead of plainhtml) #194

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Stream file is showed as plain/text (instead of plainhtml) #194

ernitron Jan 3, 2024

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ernitron Jan 3, 2024 Author

miguelgrinberg Jan 3, 2024 Maintainer

ernitron
Jan 3, 2024

Replies: 1 comment 1 reply

ernitron
Jan 3, 2024
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miguelgrinberg Jan 3, 2024
Maintainer