Azure Function App to Read and Write data to Blob-Storage

An Azure function app that reads and writes data to a blob (txt file) in Azure blob storage in Python.

This is a simple function app that executes every 15 minutes based on a Timer Trigger .
Each time the function app runs, a random number between 1 - 10 is generated only once. The number is then logged to the text file along with the time it was generated and a random word. The Function checks if a number exists and generates it if it doesn't exist otherwise it skips the number.

Prerequisites

Azure Account
Visual Studio Code with Azure Extension installed
Connection String
Container Name
Blob Name

Cloning the repository

To clone the repository, open the terminal and paste the code below:

git clone https://github.com/Ndarugaa/Azure-Function-App-to-Read-and-Write-to-Blob-Storage.git

Open the cloned repository folder with Visual Studio code.

1. Azure Account

Go to https://portal.azure.com/#home

On the Left menu, Under Storage accounts

Select an existing or create a new Storage Account.

Creating a storage account

2. Connection String

The connection String is important for connecting your function app to the blob storage

On the Storage Accounts Menu

Under Security + Networking, Select Access Keys

Under Key1 or Key2 copy any of the connection strings

Paste the connection string to the __init__.py file, in the connection string variable in line 16

3. Blob Storage - Container Name & Blob-name

In the __init__.py file

In line 17 change the container name variable to your desired container name.

In line 18, Change the blob name variable to the desired blob name

Note: The following characters are not allowed in container names: uppercase letters, spaces, and special characters such as #, %, and &

Execution

Ensure that you have the Azure extension installed. Once VScode has opened, click on the Azure icon.

On the Azure menu that appears, Right click on Function App and Create a Function App in Azure

Pop-up questions to create the function appear at the top of the open Visual Studio code window.

Once the function app has been successfully created, Under the Workspace submenu, click on the function app icon and then click Deploy to Function app.

Follow-up

To check the status of your function app, open the Azure portal,

under Function App, click on your Function App name.

Open the TimerTrigger

In the Function App menu that appears, click on Monitor

Notice that the function executes after every 15 minutes. Read More Here

Ndaruga/Azure-Function-App-to-Read-and-Write-to-Blob-Storage