Cool. Now we are here at AWS lambda. So what is AWS lambda briefly, it is just a facility to create your microservices where you would write your business logic functions. It is also called function as a service. It was introduced in 2014. reinvent so we invent is an Amazon Web Services event which was held annually. And this is kind of biggest event in AWS.

So, AWS lambda, it runs code in response to events, it can be stdp call, it can be a service call, it can be SNS call, and then it actually turns or runs lambda. In response to those events. You can run your code virtually any type of application or back end services, all with zero administration. The benefit of lamda is it actually provides you platform where you run and write your functions without worrying about infrastructure. Now, how lambda works. So, since as we already discussed it is completely serverless So, you don't have to worry about server or an infrastructure, but in the background any function you write it needs to be running on some sort of server right.

So, how, how lambda works, it runs on your runtime environment. So if you have configured like Node JS environment, Python environment or some different environment, it actually create on fly kind of content and mechanism but AWS has some their own proprietary container running services, which actually runs your functions and return your all your results. By that, so that is what about how lambda works. So if you have you know, kind of float catching up, then it will create effects. And containers on fly and it will then run all your functions and return all your function results to your calling program. So this is all about lambda how lambda works will we are now just going to learn more about how to write lambda functions and I'll see you in the next lecture.