Bash: Guide to Bash Arrays

Bash: Guide to Bash Arrays

The Bash array variables come in two flavors, the one-dimensional indexed arrays, and the associative arrays. The indexed arrays are sometimes called lists and the associative arrays are sometimes called dictionaries or hash tables. The support for Bash Arrays simplifies heavily how you can write your shell scripts to support more complex logic or to safely preserve field separation.

This guide covers the standard bash array operations and how to declare (set), append, iterate over (loop), check (test), access (get), and delete (unset) a value in an indexed bash array.

Python - How To Refresh an JWT Access Token Using Decorators

Python - How To Refresh an JWT Access Token Using Decorators

When you create a big python application, you can began to run into challenges with longer scripts that extended beyond the expiration of a single JWT.

To elegantly solve this, You can use decorators to check the token’s expiration and request a new token if necessary. This article goes over the framework I set up so that you can apply a similar mechanism in your own scripts.

Setting the Scene

import time
import requests

class myAPI():
    host = None
    key = None
    secret = None
    access_token = None
    access_token_expiration = None

    def __init__(self,host,key,secret):
        # the function that is executed when
        # an instance of the class is created
        pass

    def getAccessToken(self):
        # the function that is 
        # used to request the JWT
        pass

    class Decorators():
        @staticmethod
        def refreshToken(decorated):
            # the function that is used to check
            # the JWT and refresh if necessary
            pass

Our class will work by requiring the fields necessary to request the JWT. Without access, there is nothing more our class will do.

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