typescript-is
Paste JSON as Code • quicktype
typescript-is | Paste JSON as Code • quicktype | |
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9 | 64 | |
951 | 1,671 | |
- | 0.0% | |
4.2 | 0.0 | |
10 months ago | about 3 years ago | |
TypeScript | JavaScript | |
MIT License | Apache License 2.0 |
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typescript-is
- Good bye "typescript-is" (ancestor of "typia", 20,000x faster validator)
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Typing for JSON Payloads
I'll throw https://github.com/woutervh-/typescript-is in the mix as well.
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Handling json input in an express app
I'm a fan of typescript-is. Provides both compile time and run time validations
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What can I *use* Rust for?
For what it's worth, thanks to TypeScript transformers (a feature baked into the compiler), one can create a transformer library that verifies an object is valid for any TypeScript type and conveys that information to the typechecker. And indeed, it's already been made. It allows to parse unknown into a given T. This is nice, because one can generate a JSON schema out of a TS type, for other languages/codebases to integrate safely.
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Do you use code generators? If so, which ones?
But to make it worth the comment, I’ll point people to typescript-is which uses transformations at compile-time to generate run-time type checking code.
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TypeScript runtime type-checking - designed for simple use, through to enforcing API payload schema
Then there's also typescript-is, which is pretty neat because it converts actual compile-time type definitions to runtime type checks, so it doesn't require changing the type definitions.
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JSON Schema === Runtime Type System for TypeScript
typescript-is. This uses a compile-time transformer to generate code for type-checking. You'll need to use ttypescript instead of typescript to compile your code (I recommend setting this up with ts-patch). It won't work if your build pipeline is actually using something like esbuild or Babel to transpile TS->JS.
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How an Anti-TypeScript “JavaScript developer” like me became a TypeScript fan
If you're not using a bunch of generics, check out typescript-is [1]. It takes little work to get it setup, but it generates run time type checks for you. I understand why typescript decided to not add this functionality to the core of the language, but it's starting to feel like the largest missing piece of typescript is a built-in way to generate run-time type-checks for user-defined types from just the type definition.
The happy medium we've found with that module is using the runtime type-check on anything "unsafe" to bless the result using typescript-is's equals functionality, but still allowing programmers to use casting with a comment justifying its necessity. For us our list of unsafe is results pulled from the db, anything parsed from JSON, and incoming request bodies (which can be a special case of parsing from JSON, but not always).
[1]: https://github.com/woutervh-/typescript-is
Paste JSON as Code • quicktype
- Python 3.13 Gets a JIT
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10 Lesser-Known Tools and Websites to Spice Up Your Developer Toolbox
Quicktype automates the generation of code from JSON data. It's a real timesaver when dealing with complex JSON structures in your applications.
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Show HN: A tool to Convert JSON schemas into TypeScript classes
Nice! JSON schemas are really useful, we use them a lot for code generation. Another library that does this for multiple languages is https://quicktype.io/ . It's great, but not so actively developed.
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Free Tech Tools and Resources - MAC Lookup, SQL Tutorials, JSON Converter & More
Quicktype is a speedy way to transform JSON data into well-structured, type-safe code in any programming language. Can help simplify the process of generating models and serializers from JSON, schema, or GraphQL—for secure, efficient data handling. 6-20PM finds it a "Godsend to convert JSON into data structures in any language."
- JSON Schema Store
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Migration to TypeScript Advice
Good candidate modules for these initial conversions are utility functions and code related to external APIs or specifications. It is possible to automatically generate TypeScript type definitions from Swagger contracts, GraphQL or JSON schemas to be included in your project. as well as you can use website called https://quicktype.io/ to generate types and interfaces in order to user them in your tsx or ts file.
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Help with json parser
Using Codable structs is better than dictionaries. Paste the JSON into https://quicktype.io/ and it will create the structs for you.
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How can we map data from JSON to typescript object efficiently?
May be quicktype.io?
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Is there a neat way to work with deeply-nested JSON?
Check out quicktype.io. You can paste in your JSON and it will build your model for you. There's even an option for creating constructors. And you can choose your programming language. I usually spend some time cleaning it up a bit. It's not the perfect solution and I don't use it all the time, but it sure saves time for complicated models.
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Need Help on API Implementation
Hello. I used quicktype.io to try and implement an api in my code.
What are some alternatives?
runtypes - Runtime validation for static types
Swinject - Dependency injection framework for Swift with iOS/macOS/Linux
class-transformer - Decorator-based transformation, serialization, and deserialization between objects and classes.
EsaKit
class-validator - Decorator-based property validation for classes.
PXGoogleDirections - Google Directions API helper for iOS, written in Swift
typebox - Json Schema Type Builder with Static Type Resolution for TypeScript
PredictionIO SDK - PredictionIO iOS / macOS SDK
ts-node - TypeScript execution and REPL for node.js
GooglePlacesAutocomplete - Google Places address entry for iOS (Swift)
zod - TypeScript-first schema validation with static type inference
Typhoon - Powerful dependency injection for Objective-C ✨✨ (https://PILGRIM.PH is the pure Swift successor to Typhoon!!)✨✨