aws-appsync-community
rescript-test
Our great sponsors
aws-appsync-community | rescript-test | |
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33 | 3 | |
499 | 76 | |
-0.6% | - | |
0.0 | 4.9 | |
7 months ago | 24 days ago | |
HTML | ReScript | |
Apache License 2.0 | MIT License |
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Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
aws-appsync-community
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Testing Serverless Applications on AWS
For context; the web application is built with React and TypeScript which makes calls to an AppSync API that makes use of the Lambda and DynamoDB datasources. We use Step Functions to orchestrate the flow of events for complex processing like purchasing and renewing policies, and we use S3 and SQS to process document workloads.
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Serverless APIs
AWS AppSync I'm keeping this section a bit shorter for you all, since AppSync is not something I have actually used personally, but have heard great things about. AppSync is another API option AWS has made available specifically for applications that want to take advantage of GraphQL or a Publish/Subscribe model. The GraphQL model may be of interest to front end developers that need to query multiple sources of data from one API endpoint, like databases or microservices. The Pub/Sub model I am more familiar with in the IoT hardware-communicates-with-software aspect, however this is also powerful for frontend developers looking to take advantage of real-time updates with serverless WebSocket connections. With AppSync, you also have caching, offline data synchronization, and real-time updates. You can learn more and check out the developer docs on the AWS Website.
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React Signup/Login/Account Settings application With Amplify
Amplify is a set of tools that allows full-stack web and mobile developers to create and build apps. It makes using AWS services, like our Cognito identity and access management service, or our managed GraphQL service AppSync, much simpler and straight forward to use.
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Top 12 Serverless Announcements from re:Invent 2022
This was the top-voted, long-awaited request for AppSync.
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Building Serverless Web Applications with React & AWS Amplify
Appsync is the AWS service focus on creating flexible APIs, and Amplify is the framework that combines multiple AWS tools to help you build any type of Application.
- Ask HN: So you moved off Heroku, where did you go?
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Using GraphQL with DynamoDB is Cool
If you're building an AppSync/GraphQL API for that, yeah, that's a problem, better to use relational like Postegres.
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Strategies to test AWS AppSync VTL templates
AWS AppSync is a serverless GraphQL and Pub/Sub API service that many developers love. Turing the complex job of creating and managing a GraphQL API with real-time capabilities into a few lines of IaC (or clicks in the console) is a great win for AWS serverless developers.
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The REGAL Architecture
A: AWS Amplify and AppSync
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Ruminations on ValueObjects, DataTransferObjects, Back-end For Front-ends, and Functional Programming Data Modelling
In the case of microservices/Lambdas required to respond to GraphQL/AppSync, they have to follow the GraphQL contract and provide all data. So they'll often end up making multiple calls, mapping these DTO's to their own VO's that have all the data they need.
rescript-test
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Testing in ReScript
Besides bindings for JavaScript libraries, there is rescript-test - a lightweight test framework written in ReScript for ReScript. I have heard that some people like it, but for me, it lacks coverage output and Wallaby support.
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The REGAL Architecture
As soon as you need to change the name or something, delete a field, or change a field… you’ve broken the API. This means you first need to change your Lambda(s) that use this new data, and ensure your unit tests (using ReTest) pass, and your integration tests (using Mocha & JavaScript) which invoke your Lambdas directly on a QA server still work.
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Parsing Lambda Error Logs in ReScript & Python
To do that, we’re using rescript-test, which feels natural to those used to Jest, Mocha, etc. The only main difference is using testAsync vs test for async code, and having to define your own assertions vs. “Jest/Chai has ALL THE THINGS”.
What are some alternatives?
Hasura - Blazing fast, instant realtime GraphQL APIs on your DB with fine grained access control, also trigger webhooks on database events.
node-jsonwebtoken - JsonWebToken implementation for node.js http://self-issued.info/docs/draft-ietf-oauth-json-web-token.html
appsync-lambda-authorizers
Flask_Website_Project - This repo contains all the source code for my Flask based website
rescript-compiler - The compiler for ReScript.
aws-lambda-java-libs - Official mirror for interface definitions and helper classes for Java code running on the AWS Lambda platform.
aws-cloudformation-coverage-roadmap - The AWS CloudFormation Public Coverage Roadmap
fastify - Fast and low overhead web framework, for Node.js
rescript-schema - The fastest composable parser/serializer for ReScript (and TypeScript)
graphql-spec - GraphQL is a query language and execution engine tied to any backend service.
foundation - GraphQL Foundation Charter and Legal Documents
serverless - This is intended to be a repo containing all of the official AWS Serverless architecture patterns built with CDK for developers to use. All patterns come in Typescript and Python with the exported CloudFormation also included.