Invoking Lambda functions Locally with AWS SAM

Invoking Lambda functions Locally with AWS SAM

In this article you'll find out how Invoking Lambda functions locally with AWS SAM. You can invoke your function locally by using the sam local invoke command and providing its function logical ID and an event file. The sam local invoke command described in this section corresponds to the AWS CLI command aws lambda invoke.

In my D2D work as a Back-End Engineer, I am quite intensively working on AWS Serverless. Serverless is a new concept in software development.

Serverless is a way to describe the services, practices, and strategies that enable you to build more agile applications so you can innovate and respond to change faster.

AWS provides different Serverless services for different purposes and Lambda is one of them.

Lambda is one of the serverless compute services by AWS. which helps you to create applications in small pieces of functions (handler).

Writing lambdas at the beginning is a bit difficult and hassle. Since we have to know a lot about lambdas — from different configurations to SAM template.

In this article, we will create a lambda function and invoke that function using AWS SAM CLI in a local environment. We will be using everything locally. So you don’t need any AWS cloud services.

Prerequisites

You must have installed the following tools on your machine in order to get started.

  1. Docker Installed
  2. AWS SAM Installed
  3. AWS CLI Installed

lambda-function serverless aws aws-sam

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