io-ts
class-transformer
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io-ts | class-transformer | |
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80 | 24 | |
6,593 | 6,494 | |
- | 1.3% | |
4.9 | 6.9 | |
5 months ago | 11 days ago | |
TypeScript | TypeScript | |
MIT License | MIT License |
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io-ts
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TDD
Qué rico. Si tenés chance meté un proceso de code review fuerte, y para el tema de I/O probá a usar https://github.com/Effect-TS/schema ó https://github.com/gcanti/io-ts que les da una solución obvia al tema de "tipos para lo que devuelva el backend", aunque es en realidad mucho más capaz que eso.
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Domain modelling with State Machines and TypeScript by Carlton Upperdine
My fave is still io-ts (https://github.com/gcanti/io-ts/blob/master/docs/index.md) as I find it more flexible than zod at the ingress. The author is also working on the Effect ecosystem which also looks interesting.
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Why I Like Using Maps (and WeakMaps) for Handling DOM Nodes
I’ve been using io-ts for this and been very happy with it. [1] It’s similar to Swift’s Coding protocol in case you’re familiar.
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Can someone recommend a library for data parsing similar to Zod, but with better support for input transformations/preprocessing?
Yeah, there are a few new concepts and it's not the easiest to pick up right away. The best introduction is here on the main documentation page.
- libraries you are happy that you discovered them
- Is React for small projects an Overkill?
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how to strictly type this?
We use https://github.com/gcanti/io-ts/blob/master/Decoder.md which has a very similar interface. It can even be used to mutate the data using https://github.com/gcanti/io-ts/blob/master/Decoder.md#the-parse-combinator.
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Typescript advanced bits: function overloading, never and unknown types
A good way to significantly improve the reliability of your app is via improving type-safety by moving away from using any to unknown. One relevant example could be when you type your backend responses and when stringifying JSON to using unknown combined with some sort of runtime type checking. It can be done either by using built-in functionality like type guards or using an external library like io-ts, zod or yup.
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I found 10,000x faster TypeScript validator library
Usage of TypeBox is similar with io-ts and zod, but it is much powerful and faster than them. Also, TypeBox can generate JSON schema very easily. Therefore, if you're looking for a validator library for new project and not suffering from legacy codes, I think TypeBox would be much better choice than io-ts and zod. TypeBox can totally replace them.
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Validate your data with Zod
This check can be done with different libraries like: io-ts, typebox, or zod. These libraries allow you to create objects that represent your typescript definitions. Then, these objects can be used at runtime to validate the received data, in addition, you can also convert this object to a Typescript definition to have all the benefits of using typescript. These objects can be called schema validations because they are responsible for the data validation.
class-transformer
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[Nestia] Boost up your NestJS server much faster and easier (maximum 20,000x faster)
JSON serialization is 200x faster than class-transformer
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How can I declare, integrate a JSON (or similar type that is supposed to be data sent from a server) file into my Angular app, and use it;s data to display the array of Devices within it?
Also OP can check out class-transformer + class-validator if he want to properly instantiate objects and validate them with precise and verbose output of potential format errors. OP can even go the god tier way by setting up a custom RxJS operator that does that for him easily.
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NestJS GraphQL image upload into a S3 bucket
Start by installing the class-transformer and class-validator packages for dto validation (see more in the docs), sharp for image optimization, and the S3 client packages.
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NextJS + Prisma how to handle case sensitivity for usernames/emails?
And you can always transform the input in the DTO using class-transformer or use case insensitive when you search.
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class-transformer intermittent failures
Anyone here using https://github.com/typestack/class-transformer and now seeing intermittent failures using either plainToClass or plainToInstance?
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Fixing a Promise return object to be typed in Typescript
View on GitHub
- 10x faster JSON.stringify() function and run-time type checkers
- Why doesn’t TypeScript natively do any type checking
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Is there a simpler way to cast a complex object into a simpler object?
My two cents: class-transformer it will require to use decorators in your code, but it can handle more cases
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class-transformer VS TypeManager.TS - a user suggested alternative
2 projects | 22 May 2022
What are some alternatives?
zod - TypeScript-first schema validation with static type inference
class-validator - Decorator-based property validation for classes.
TypeORM - ORM for TypeScript and JavaScript. Supports MySQL, PostgreSQL, MariaDB, SQLite, MS SQL Server, Oracle, SAP Hana, WebSQL databases. Works in NodeJS, Browser, Ionic, Cordova and Electron platforms.
openapi-generator - OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)
fp-ts - Functional programming in TypeScript
typescript-is
runtypes - Runtime validation for static types
typebox - Json Schema Type Builder with Static Type Resolution for TypeScript
joi - The most powerful data validation library for JS [Moved to: https://github.com/hapijs/joi]