Resource allocation, in this case, is mostly relative to the amount of incoming or concurrent events or requests. When this happens, resources are allocated on the fly to serve these events.
Advantages to going serverlessįor serverless applications, a piece of code - usually a lambda function - is executed based on the kind of events triggered. Not to worry, we will get to understand this later on as we flesh out our application. Furthermore, every other new event triggered by a function call is handled in a new container instance, automatically triggered. The idea here is that the state is not persisted across multiple or different function calls or contexts. For serverless applications, function contexts bound to specific events must run before the completion of those events. Serverless code is a stateless function triggered or run by the occurrence of events - for example, network events (HTTP request/response cycle). How does paying for the exact resources you consume sound? The beauty of serverless as a framework is that you only have to pay an equivalent amount for the resources needed to run your entire infrastructure, indeed with radically less overhead and cost. What is the serverless stack?Īs a framework, we can build both microservice and full-stack applications, freeing organizations at any scale from the process of provisioning for huge server setup, maintenance, and configuration. The serverless stack shines in this regard. Due to the associated challenges with this setup, the need to drive alternative solutions became necessary.
Nowadays, software engineering teams have dedicated DevOps/infrastructure engineers to help manage, provision, and maintain these servers. Most web applications run on high-maintenance servers. Going serverless with Node.js appsĮditor’s Note: This post was updated in August 2021 to include the latest version of Node and additional benefits to going serverless. React, Node.js, Python, and other developer tools and libraries. Alexander Nnakwue Follow Software engineer.