AWS Training in Noida

AWS LAMBDA- A Compute service

 Ø AWS lambda is a compute service where you can upload your code and can execute it on using Amazon’s infrastructure.

 Ø  On lambda platform each code is known as ‘Function’. Using lambda is like deploying your code to a server except the fact that there is no need for managing the server.

 Ø  The functions of lambda are written in Java, Node JS & Python and all these functions must be stateless yet you can still connect to other AWS services such as S3 or DynamoDB.

 Ø  Since Amazon requires stateless functions that allows launching as many copies of your functions as needed.

 Ø  Lambda automatically scales to the rate of incoming events and scale back down whenever needed.

How to trigger lambda functions?

The functions of lambda are triggered by the events coming from other AWS services. For example, a lambda function can be triggered during the uploading of new file to S3 bucket or through HTTP call you can trigger the lambda function.

How to connect lambda to API gateway?

 Ø  The first way for connecting lambda to API gateway is through the lambda console.

 Ø  Go to lambda > open ‘My function’ > click on tab ‘Trigger’ where you can create or add a new trigger.

 Ø  Add a trigger > choose API and name it as per your wish > give resource a name > specified the GET method > deployment stage where you’ll have production deployment or staging > click on open security and choose open so that the API is available for everyone.

     After its submission your work is done and this is the first way for connection lambda to API gateway. The second way of connecting lambda to API gateway is given below.

 Ø  Use API gateway console instead of lambda console > create new API give it any name.

 Ø  It allows the configuration of resources as well as stages or authorizers or models > create a new resource give it a name > add a GET method > click ‘OK’.

 Ø  Choose the integration type; it can be lambda function, HHTP proxy or mock integration > pick the region > name the function > click save and ask if it’s ok to add permission to invoke the lambda function and you’ll have an overview of the requests.

 Ø  Now, go to action > click deploy API > create a new stage for it give it another name for the production environment and give a deploy description & API gateway will give another URL

Looking for IT institute for AWS lambda training? Enroll at Sky InfoTech and learn AWS lambda comprehensively.

Reasons for joining Sky InfoTech

Sky InfoTech is the leading IT institute of training in Noida that provides the in-depth training of AWS lambda. The course consultants of Sky InfoTech are highly qualified and experienced in their respective field and Sky InfoTech is the excellent choice for AWS lambda training. Along with the training the institute guarantees placement as well.

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