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A guide on Azure Serverless Computing: Logic Apps
Azure Logic Apps are one of the most easily readily services built-in with Azure. Users can create the workflows using the interface that can be either for business use cases or processes to integrate apps, data, systems, and services across enterprises.
It helps schedule, automate, and orchestrate tasks with the help of the 400+re connectors ecosystem.
You’d probably have many questions about Azure Logic Apps work and how they may benefit you. Here are the answers to a few of your most pressing questions.
What can be done with Logic Apps?
Azure Logic App watches for new files in an SFTP server, moves them to Blob storage, and subsequently executes HTTP request/Function app on a specified schedule. You can also watch out for insert/update rows in Azure SQL and insert a new row table based on the HTTP request payload.
How do Logic Apps work?
Each workflow starts with a single trigger, which is fired based on the conditions or how often it is set to run. One or more actions are triggered to carry out the business logic. Each action’s output is given to the following action as an input, or it can be assigned to a variable that will be used later. It has different ways to help with the following control actions.
- Condition-based control
- For each control
- Switch control
- Until control
How Logic Apps work
The following are the essential key terms used in Azure Logic Apps.
A workflow is a series of steps that define the business process or task. Each workflow starts with a single trigger and executes one or more actions.
It is the first step in any workflow which specifies the condition for running the further steps in that workflow
- Recurrence Trigger – Runs on specific intervals
- Polling Trigger – Polls a service/system based on predefined intervals
- Push Trigger – Waits and listens for new data or for an event to happen
Logic App Triggers
An action is each step in a workflow after the trigger. Every action runs some operation in a workflow. For example, it operates the query data from the SQL tables, posts a message in the service bus queue, loops through all the blobs in a storage account container, and many more.
A connector is a prebuilt proxy or wrapper for the REST API that can be used to access the specific app, data, service, or system. Using the connectors creates a connection from the workflow and authenticates your identity.
What are Logic App limitations?
Workflows per region per subscription
Triggers per workflow
Actions per workflow
Actions nesting depth
Trigger or action – Maximum name length
Trigger or action – Maximum input or output size
104,857,600 bytes (105 MB)
Action – Maximum combined inputs and outputs size
209,715,200 bytes (210 MB)
Expression character limit
description – Maximum length
parameters – Maximum number of items
outputs – Maximum number items
What is its Pricing?
Free Grant (per month)
10 x $0.000125
10 x $0.00
Monthly free grant
46000 x $0.000025
Total monthly cost
Capabilities and benefits of Logic Apps
Given that Azure Logic Apps work efficiently in creating easy workflows, let’s look into its benefits:
- Easy to design by using the Logic app designer
- Makes use of the existing predefined templates
- Write once and reuse as many times by exporting them as ARM templates
- Pay only for what you use like any other serverless computing models
Eleviant allows you to manage Azure Serverless resources and quickly scale up and down to match the demands of any business process. Azure Logic Apps make it easier to plan, automate, and organize assignments, business work processes, and services across organizations. Get in touch with our experts to learn more about Serverless computing and how to utilize Azure Logic Apps in your business operations.
Disclaimer: All the images used in this series of blogs are sourced from the official Microsoft™ Azure Serverless computing charts and pictography.