You want your applications to have the best user interface possible when you are developing them. To work, your program would need backend code that responds to events. Maintaining the infrastructure that hosts and executes backend codes requires sizing, provisioning and scaling large numbers of servers as well as managing operating system changes and monitoring this infrastructure for performance and availability. It sounds daunting, right?
It would be amazing if you could focus on creating great apps and not worrying about infrastructure. AWS Lambda is the solution. It was launched in 2014 and has seen a huge increase in demand. It is now one of the most popular and fastest-growing AWS products. It is one of the most widely used serverless computing services. Before we get into the details of AWS Lambda, let’s first understand what serverless computing is.
What is Serverless?
Serverless can be described as a way to describe services, practices, strategies, and strategies that allow you to build more agile apps so you can adapt to changes more quickly. AWS handles infrastructure management tasks such as patching and capacity provisioning, so you can focus on writing code that helps your customers. These services include automatic scaling, high availability, and a pay for value billing model. Serverless computing offers many benefits:
Reduce your costs: Traditional cloud service providers charge users for unutilized space or idle CPU power. Serverless Computing, on the other hand, is cost-effective because it uses a pay-for-value billing model.
Serverless architecture will speed up the time it takes to get your product to market. Your teams will be able release faster and get reviews by eliminating operational overhead. Developers can add and modify code piecemeal, rather than relying upon a complicated deployment process to fix bugs and create new features.
Scalability is easy: Technology that seamlessly scales from zero to peak demand allows you to adapt to customer requirements more quickly than ever before. Serverless architecture means that developers don’t need to think about policies for scaling up their code. All on-demand scaling is managed by the serverless vendor.
Serverless applications allow you to focus on developing and not configuring.
We’ve now covered the basics of serverless computing. Let’s take a look at AWS Lambda which is one of the most popular serverless computing services.
What is AWS Lambda and how can it help you?
Amazon Web Services offers AWS Lambda, an event-driven and serverless computing platform. This serverless computing service allows you to run code without having to provision or manage servers, create workload-aware cluster scaling logic or manage runtimes. Lambda can run code for any type of backend service or application. You won’t need to worry about AWS resources or how to manage them. Instead, upload your code to Lambda. It will execute the code efficiently and flexiblely.
AWS Lambda is also used in many other applications. Netflix is the first company to use Lambda. Localytics, a mobile analytics startup is using Lambda. The REA Group, Australia’s largest real estate website, also uses Lambda. They developed a recommendation engine for their website and Lambda was used as its power source.
How does AWS Lambda work?
AWS manages all of AWS Lambda’s infrastructure layer. Customers are not privy to the workings of the system. AWS handles everything, from updating the underlying machines to avoiding contention in the network.
Step 1: First, upload your code to AWS Lambda in any language supported (Java, Python Go, C#, and many more).
Step 2: Next, AWS services will allow you to trigger AWS lambda. It allows you to upload code and event details that should trigger it.
Step 3: Lambda also automatically and precisely allocates compute execution power and runs your program based on the incoming event or request. This is applicable to any traffic size.
Step 4: AWS charges only for the execution of the AWS lambda codes.
Source: AmazonWhy use AWS Lambda
AWS Lambda, with its many advantages, is an excellent choice to deploy highly scalable cloud computing solutions. Lambda’s architecture gives it significant advantages over other cloud computing setups for applications. AWS Lambda has many advantages.
Fully managed infrastructure: AWS lambda executes the code without you having to maintain or provision infrastructure. Simply write the code, and upload it to Lambda as a ZIP file.
Continuous scaling: AWS Lambda automatically scales the application by responding to every event with code. Your code runs in parallel, processing each trigger individually, scaling up or decreasing depending on the workload. This can be from a few requests per hour to hundreds of thousands every second. Each function’s time is what you pay.
Pay per use: AWS Lambda charges only for the computations your functions use and any network traffic generated. For every millisecond that your code executes, and for each time your code is triggered, you are charged. Compute Savings Plan can save you up to 17%
Integration with other AWS products. AWS Lambda can integrate with services such as DynamoDB and S3 to allow you to create fully functional apps within your Lambda functions.
Execute code in milliseconds. You can speed up your code execution with AWS Lambda. Select the appropriate memory size to your function. Enabling Provisioned Concurrency will allow you to keep your functions initialized and hyper-ready for response within double di
