# Stubbing AWS S3 responses in Rails

## Context
I was writing some test cases for a service object in which we have to generate and then upload a pdf to Aws S3 storage. Now this backend service is made using Rails 7 and i use rspec framework for writing my tests.

Now for S3 we use the *aws-sdk-s3* gem. I wanted to stub the S3 response in my tests and for some reason i scoured the internet on how to make it work while rummaging throught the S3 docs to no avail. 

Finally i found the sweetest and simplest solution so i decided to share it so it might save you some time. Just to keep things clear i will also share how my AWS config is setup incase you have some confusion regarding that. 

## AWS Setup in Rails
After installing the gem, my aws variables are defined in my application.yml file as i use figaro to keep them safe here is my aws_intializer file.

![hash](https://i.imgur.com/mau6g3Q.png)

## The Magic

All you have to do is add

      Aws.config[:s3] = { stub_responses: { put_object: true } }

in your *test.rb* file in your *config/environment* and it will take care of everything for you!