CODEWITHSUNDEEP
pythongoogle-app-engine
Bill G.
Bill G.

Reputation: 1467

How do I pass a parameter string in a URL to a Python function in GAE?

I am a GAE and Python newbie. I am not able to pass a string parameter from my HTML page to a Python function (it works for integer parameters though).

I have the following URL:

http://localhost:8094/papers/xyz

In main() I have:

app = webapp2.WSGIApplication([
('/', homepage.ViewHomePage),
('/about', aboutpage.ViewAboutPage),
    ('/papers/([\w]+)', PaperList)
],
            config=config,
            debug=True)

The function is defined as:

class PaperList(BaseHandler):

    def get(self, param1):

In app.yaml I have:

- url: .*
  script: main.app

This does not work. However, if I just change the parameter from a string to an integer, then it works. (I am not doing anything with the parameter yet, just want it to accept the string parameter.)

Can someone tell me what I have to change to allow it to work with a string parameter and also point me to where the documentation explains how to pass parameters through main()?

I am using Python 2.7.

Upvotes: 0

Views: 1286

Answers (2)

johnlockwood
johnlockwood

Reputation: 247

you also have the option of passing urlencoded data such as yourapp.appspot.com/papers?keyword=helloworld

and get it in your handler with: keyword = self.request.GET.get('keyword') or keyword = self.request.POST.get('keyword') depending on your request method.

you can also pass json data in the body of a AJAX post and use json to deserialize it into python data. To validate this kind of data, I recommend voluptuous.

Upvotes: 0

Ignacio Vazquez-Abrams
Ignacio Vazquez-Abrams

Reputation: 799310

\d only matches decimal digits. Did you mean to use \w instead? Also, no square brackets.

Upvotes: 2

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