CODEWITHSUNDEEP
pythonhtmlgoogle-app-engine
EasilyBaffled
EasilyBaffled

Reputation: 3882

Reading and writing files from html in Google App Engine

I am working with GAE and Python, I know python, but I don't know HTML, which seems to be what I need right now. I want to take in a text file write something in it then return it for download. I am using other people's examples, but far all I have is:

class MainPage(webapp.RequestHandler):

    #http://bukhantsov.org/2011/12/python-google-app-engine-calculator/
    def get(self):
        self.response.out.write("""<html>
            <body>
            <form action='/' method='get' autocomplete='off'> 
            <input type='file' name='file'/><br/> 
            </form>
            </body>
            </html>""")

I imagine there is something I need to put in the file line so I can access what the user feeds it, but I don't know what or how to access it from the python code. So what should I do here?

Upvotes: 0

Views: 607

Answers (1)

Jess
Jess

Reputation: 91


If I understand your question correctly, you are trying to grab the text data being sent by the user via the GET call that is defined by the form action HTML line.

Concisely, you are looking for this call:

file = self.request.get('file')

This may also be useful:

filename = self.request.GET['file'].filename

These can be used in the same location and in conjunction with your "self.response.out".

More information can be found here: https://developers.google.com/appengine/docs/python/tools/webapp/requestclass#Request_get

Alternatively, the BlobStore APIs may be easier. https://developers.google.com/appengine/docs/python/blobstore/overview

Possibly related: Upload files in Google App Engine, Get original filename google app engine

Hope that helps!
Jess

Upvotes: 2

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