From theflaskpackage, you then import the necessary helpers you need for your application: theFlaskclass to create a Flask application instance, therender_template()function to render templates, therequestobject
Python is boomingand Flask is a pretty popular web-framework nowadays. Probably, quite some new projects are being started in Flask. But people should be aware,it's synchronous by designandASGIisnot a thing yet. So, if someday you realize that your project really needs asynchronous I/O but...
You import thepsycopg2library. Then you open a connection to theflask_dbdatabase using thepsycopg2.connect()function. You specify the host, which is the localhost in this case. You pass the database name to thedatabaseparameter. You provide your username and password via theos.environobject...
To define a general purpose decorator that can be applied to any function we use args and **kwargs. args and **kwargs collect all positional and keyword arguments and stores them in the args and kwargs variables. args and kwargs allow us to pass as many arguments as we would like duri...
When the user clicks Login on the web page, the user credentials are sent to the Flask app, which then logs the user invia the API. If the login is successful, the OneLogin API will pass back a session token for the user. Let’s create a second web page to redirect the user to up...
Python has an in-built function called open() to open a file. It takes a minimum of one argument as mentioned in the below syntax. The open method returns a file object which is used to access the write, read and other in-built methods. ...
You’ll find that it contains thekey-valuepairs of all parameters in your query. (Query is the part of your URL that comes after?sign) If thequeryobject doesn’t include the parameters that you’re looking for, then you should also check outpathparameter values, which are accessible at:...
To do that, copy this code into your database.py file under the models package: from sqlalchemy import create_engine from sqlalchemy.orm import sessionmaker SQLALCHEMY_DB_URL = "sqlite:///./db.sql" engine = create_engine(SQLALCHEMY_DB_URL, echo=True) DBSession = sessionmaker(engine, ...
However, each web server has a way to identify the real remote IP address of a visitor. For Apache, this is performed with the Remote IP Apache module. For the module to work, the reverse proxy must be configured to pass the remote IP address’ information. Start a shell in the apache...
ParameterDescription url The URL of the request is an important part. data Optional. A dictionary, tuples’ list, bytes or a file object is sent to the specified URL. json Optional. A JSON object to direct to the specified URL. files Optional. A directory of files to pass to the specif...