typedi
class-validator
typedi | class-validator | |
---|---|---|
7 | 29 | |
3,913 | 10,501 | |
0.4% | 0.9% | |
8.9 | 9.2 | |
4 days ago | 10 days ago | |
TypeScript | TypeScript | |
MIT License | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
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.
typedi
-
Cerbos + GraphQL: Do not reinvent user permissions
In this tutorial, we're building a simple application which uses Cerbos inside of a GraphQL server. The server is written in typescript and uses type-graphql to create the schema and resolvers, and TypeDI to handle dependency injection.
-
Typesafe, (almost) Zero Cost Dependency Injection in TypeScript
typedi
-
Has anyone successfully created a Dependency Injection using typescript decorators?
If you donโt want to tie yourself to a full web framework like Nest, there are a few DI-only frameworks that work with decorators, like TypeDI, TSyringe, or Typed Inject.
-
Dependency Injection in JavaScript: Write Testable Code Easily
For existing projects, or if you don't want the weight of an opinionated framework like Nest, libraries like TypeDI and TSyringe can help.
-
Top 5 TypeScript dependency injection containers
The TypeDI project aims for simplicity by leveraging decorators and decorator metadata. It supports dependency scoping with singletons and transient objects and allows for multiple DI containers to exist. You have two options for working with TypeDI:
-
Dependency Injection In JavaScript
There are a number of Javascript dependency injection container libraries out there. Some of my personal favourites are TypeDI and InversifyJS. Here is an example demonstrating basic usage of Typedi with JavaScript.
-
Node Backend Server
- Youtube GIF Maker Using Next.js, Node and RabbitMQ
typedi TypeDI is a powerful dependency injection package that has many features. One of this features is having Singleton Services which is how we use it in our case.
class-validator
-
Popular Libraries For Building Type-safe Web Application APIs
You can learn more from the documentation here.
-
[DDD] Tactical Design Patterns Part 3: Presentation/Infrastructure Layer
This is the request body when creating a new task. The IsString decorator provided by class-validator rejects all types other than strings, including undefined or null. The task name value object does not consider the possibility of values other than strings.
-
DRY Principle in Your AWS SAM Application with Middlewares
In this class, we are using the famous class-validator to decorate our request parameters. This way it is more clear how we are going to use our request object and everything.
-
Show HN: Graphweaver โ Instant GraphQL API on Postgres, MySQL, SQLite and More
We add validation using https://github.com/typestack/class-validator.
I will make sure we get this documented.
- [Nestia] Boost up your NestJS server much faster and easier (maximum 20,000x faster)
-
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.
-
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.
-
NestJS vs. Ditsmod: auto-validation
The description of the request body model in NestJS is similar to the description of Ditsmod models, but NestJS uses decorators provided by the utility class-validator. In NestJS, it is customary to name the request body model with the ending *Dto (this is an abbreviation of Data transfer object):
-
Is there any reason not to use typescript?
You could use Zod or Superstruct to validate the types of values, or use typestack/class-validator if it makes sense.
-
I found 10,000x faster TypeScript validator library
Also, title of before article was I made 1,000x faster TypeScript validator library, but today's benchmark is showing that typescript-json is maximum 6,500x times faster. It's just because I added a new library class-validator in the benchmark and it is much slower than previous zod. Of course, I've continuously tuned the performance, but it just improved the performance about 2x times only.
What are some alternatives?
InversifyJS - A powerful and lightweight inversion of control container for JavaScript & Node.js apps powered by TypeScript.
zod - TypeScript-first schema validation with static type inference
tsyringe - Lightweight dependency injection container for JavaScript/TypeScript
joi - The most powerful data validation library for JS [Moved to: https://github.com/hapijs/joi]
Nest - A progressive Node.js framework for building efficient, scalable, and enterprise-grade server-side applications with TypeScript/JavaScript ๐
class-transformer - Decorator-based transformation, serialization, and deserialization between objects and classes.
jest - Delightful JavaScript Testing.
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.
ajv - The fastest JSON schema Validator. Supports JSON Schema draft-04/06/07/2019-09/2020-12 and JSON Type Definition (RFC8927)
io-ts - Runtime type system for IO decoding/encoding