The phrase “serverless” doesn’t mean servers are no longer involved. It simply means that developers no longer have to think "that much" about them. Computing resources get used as services without having to manage around physical capacities or limits.
It is necessary to create user called serverless-admin in your AWS account
You need to create your profile at /.aws/credentials called serverless-admin
[serverless-admin]
aws_access_key_id = your access key
aws_secret_access_key = your secret key
How to create
In your AWS Console access IAM > Users > Add Users
To run application locally execute the code below:
make start-serverless-offline:
To deploy application, just run the code below:
make deploy
Pros
- You do not need to manager servers, only serverless functions
- Run on-demand
- Scaling is automated (Limited by your available functions)
- Easy Pricing
Cons
- Be careful about timeout & memory
- Limited by time
- Cold start can be a problem
- Have a lot o lambdas working can be a pricing problem
This application provides a CRUD for books management
The application was designed using package by feature, basically we create package for which feature we have in the
application, in this case we have books as package and all division of classes inside it, if it was necessary we
create a new package of feature needed.
Example:
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