![]() To turn this off and it to ensure that Serverless Framework is packaging our functions individually, add the following to your : name : scraping-service # app and org for use with #app: your-app-name #org: your-org-name custom : webpack : webpackConfig. The larger your Lambda function packages, the longer the cold starts. This negatively affects performance as your app grows in size. ![]() Including all the other Lambda functions. This means that when a Lambda function is invoked, it’ll load all the code in your app. Optimized Packagesīy default Serverless Framework creates a single package for all your Lambda functions. ![]() But before we do that let’s quickly look at one of the other things that’s been set up for us in this starter project. Thanks to a community-wide effort, serverless-bundle now supports TypeScript as well To use the new version of serverless-bundle, install the NPM package. Now we are almost ready to deploy our Lambda function and API. The serverless-bundle plugin optimally packages your Node.js Lambda functions with sensible defaults so you don’t have to maintain your own Webpack configs. Though once deployed, we’ll be invoking this function through the /hello API endpoint (as we talked about in the last chapter). serverless.yml // Uses serverless-bundle plugin. Here we are directly invoking the Lambda function. If serverless-bundle detects a tsconfig.json in your service root. This in turn will run the hello method that we are exporting in our handler.js. In the above command we are asking Serverless Framework to (locally) invoke a Lambda function called hello. However, if you are looking to add ES6 and TypeScript support to your existing Serverless Framework projects, you can do this by installing serverless-bundle: For TypeScript, we have a starter for that as well - serverless-typescript-starter. It’s automatically included in the starter project we used in the previous chapter - serverless-nodejs-starter. Source map support for proper error messages.Supports transpiling unit tests with babel-jest.This is a Serverless Framework plugin that has a few key advantages: To help with this we created, serverless-bundle. This can add a ton of extra config and complexity to your project. To do this we typically need to install Babel, TypeScript, Webpack, and a long list of other packages. So you can use it in your future projects. And while we are not using TypeScript in this guide, it makes sense to have a similar setup for your backend Lambda functions. It makes sense to use similar ES features across both parts of the project – specifically, we’ll be relying on ES imports/exports in our handler functions.Īdditionally, our frontend React app automatically supports TypeScript, via Create React App. However, the supported syntax is a little different when compared to the more advanced ECMAScript flavor of JavaScript that our frontend React app supports. ![]() AWS Lambda supports Node.js v10.x, v12.x, and v14.x. ![]()
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December 2022
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