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    Node Reference - List Products

    Prerequisites This article builds on the prior article: Node Reference - Monitoring. Add listing Clients of our service will need a way to find products. For that, we need a product listing service. DynamoDB provides an operation for listing the contents of a table called a ‘scan’. (As a table...
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    Node Reference - CloudWatch

    Monitoring How do we answer the question: “Is our application performing correctly?” With just one application server we could remotely log into the server, look at CPU and memory load, run grep on the log files and then determine that everything is fine. This approach is manual intensive and obviously...
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    Node Reference - Put Product

    Prerequisites This article builds on the prior article: Node Reference - DynamoDB. Create put test/endpoint First, lets write a spec for our POST /products endpoint. Create a file called products/createProduct.spec.js with the following contents: const proxyquire = require('proxyquire'); describe('products', function () { describe('createProduct', function () { beforeEach(function () { process.env.PRODUCTS_TABLE_NAME...
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    Node Reference - DynamoDB

    Prerequisites This article builds on the prior article: Node Reference - Authentication. Add DynamoDB Before we can start building out our product endpoints, we need a place to store them. For that, we are turning to DynamoDB. Tables are the main component, not a “database”, so we can create just...
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    Node Reference - Authentication

    Prerequisites This article builds on the prior article: Node Reference - Cognito. Adding authentication In order to leverage our new identity provider, we need to add a middleware into our Koa pipeline. This middleware will reject requests that do not contain valid tokens. We can accomplish this by using two...
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    Node Reference - Cognito Setup

    Cognito setup In order to secure our application we are going to leverage OpenID Connect. Each request to our application from either another service or a logged in human user will contain a JSON Web Token (a.k.a. JWT) as a “Bearer” token in the Authorization header. This token not only...
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    Node Reference - HTTPS

    Prerequisites This article builds on the prior article: Node Reference - HTTPS/DNS. HTTPS and DNS In this post we are going to add a friendly DNS address that can be used to invoke our service so that clients do not have to use the auto-generated AWS load balancer name. We...
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    Node Reference - Application Load Balancer

    Prerequisites This article builds on the prior article about AWS Fargate. Add an Application Load Balancer For a long time, AWS has supported an HTTP(S) load balancing service in the form of an Elastic Load Balancer (now called a “Classic load balancer”). When paired with ECS, a classic load balancer...
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    Node Reference - Fargate

    Prerequisites This article builds on the prior article about AWS CodePipeline. Fargate History With an automated build process underway, it is now time to switch focus to the application’s runtime environments. We will be creating two environments: Development (aka. Dev) and Production (aka. Prod). Consider wether your project needs more...
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    Node Reference - Code Pipeline

    Prerequisites This article builds on the prior article: CloudFormation. Continuous building via AWS CodePipeline Not only are we going to manage our application environments with Cloudformation but we are also going to manage our deployment pipeline in the same manner. CodePipeline (Not to be confused with CodeDeploy) is the Continuous...