Difference between revisions of "Parts of a Flask Web App"

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(Created page with "=@app.route= This defines where a particular path in the url relates too: <syntaxhighlight lang=python> @app.route("/") def hello(): return "Hello World!" </syntaxhighlig...")
 
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Using this method the parameters are passed as strings, and you may need to convert them.
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Using this method the parameters are passed as strings, and you may need to convert them. In this example the URL '/Wayne' will display the message 'Hello Wayne'.
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=Defining url_for=
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=Handling HTML Forms=
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=Using Sessions=
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=Templates=

Revision as of 08:48, 10 April 2019

@app.route

This defines where a particular path in the url relates too:

@app.route("/")
def hello():
    return "Hello World!"

When the app server is running, visiting the root will produce the message 'Hello World!'. The code below will also display this if you visit '/home' on the app server:

@app.route("/")
@app.route("/home")
def hello():
    return "Hello World!"

Parameters

The example below will just display the message:

@app.route("/")
def hello():
    return "Hello World!"

You can also use parameters:

@app.route("/<name>")
def hello(name):
    return "Hello "+name

Using this method the parameters are passed as strings, and you may need to convert them. In this example the URL '/Wayne' will display the message 'Hello Wayne'.

Defining url_for

Handling HTML Forms

Using Sessions

Templates