rescript-and-python-error-parsing-aws-lambda
rescript-test
| rescript-and-python-error-parsing-aws-lambda | rescript-test | |
|---|---|---|
| 1 | 3 | |
| 0 | 76 | |
| - | - | |
| 1.8 | 6.0 | |
| almost 2 years ago | 11 days ago | |
| ReScript | ReScript | |
| - | MIT License |
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rescript-and-python-error-parsing-aws-lambda
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Parsing Lambda Error Logs in ReScript & Python
That coginitive dissonance is why I wrote this article. I love how both laguages can shine in what they do best doing the same task, and it’s fascinating to compare them, and how you’d approach doing the same thing in each. For reference, all code is up on my Github.
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?
aws-cdk - The AWS Cloud Development Kit is a framework for defining cloud infrastructure in code
rescript-stdlib-vendorer - Tool to support usage of a vendored standard library in ReScript
aws-cloudformation-coverage-roadmap - The AWS CloudFormation Public Coverage Roadmap
rescript-schema - The fastest composable parser/serializer for ReScript (and TypeScript)
TypeScript - TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
aws-appsync-community - The AWS AppSync community
CPython - The Python programming language
ocaml - The core OCaml system: compilers, runtime system, base libraries
elm-graphql - Autogenerate type-safe GraphQL queries in Elm.
aws-lambda-java-libs - Official mirror for interface definitions and helper classes for Java code running on the AWS Lambda platform.
aws-codedeploy-agent - Host Agent for AWS CodeDeploy