class-validator
FluentValidation
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class-validator | FluentValidation | |
---|---|---|
29 | 20 | |
10,469 | 8,772 | |
1.6% | 1.2% | |
9.3 | 7.9 | |
11 days ago | 3 days ago | |
TypeScript | C# | |
MIT License | Apache License 2.0 |
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.
class-validator
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Popular Libraries For Building Type-safe Web Application APIs
You can learn more from the documentation here.
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[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.
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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.
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Show HN: Graphweaver – 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)
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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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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):
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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.
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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.
FluentValidation
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Easiest way to build the fastest REST API in C# and .NET 7 using CQRS
Here is an example of Command handler with built-in Fluent Validation and fire and forget style:
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8 quick tips to improve your .NET API
There is an RFC called Problem Details (RFC7807) that standardizes how an error in an API should be responded to for the client. If you use Fluent validation, you may have noticed that the response is within this pattern.
- [Parte 2] CQRS y MediatR: Validando con FluentValidation
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Building REST APIs In .Net 6 The Easy Way!
here we're defining the input validation requirements using fluent validation rules. let's see what happens when the user input doesn't meet the above criteria. execute the same request in swagger with the following incorrect json content:
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How to properly sanitise & check POST data from REST API? Which libraries can you suggest? best ways nowadays in 2022
I remember FluentValidation being a nice library for this type of stuff.
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Improving Anemic Models
Literally the code example in the front page: https://fluentvalidation.net/
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BREAKING!! NPM package ‘ua-parser-js’ with more than 7M weekly download is compromised
https://www.nuget.org/packages/Newtonsoft.Json/ https://www.nuget.org/packages/AutoMapper/ https://www.nuget.org/packages/Dapper/ https://www.nuget.org/packages/FluentValidation/ https://www.nuget.org/packages/FluentAssertions/ https://www.nuget.org/packages/NUnit/ https://www.nuget.org/packages/xunit/ https://www.nuget.org/packages/YamlDotNet/ https://www.nuget.org/packages/Moq/ That is simply not true. Mature c# projects purposely maintain no downstream dependencies and is they do, it's to a major reputable lib. See for yourself - these are staple third party packages commonly used. Anything dependency starting with System or NETStandard is Microsoft maintained.
- ASP.NET Core 6: Minimal APIs y Carter
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GraphQL mutation union erros (6a) with Hotchocolate GraphQL Server
FluentValidator for validating and authorising certain fields.
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Request Validation for Asp.NET API with Fluent Validation
Now that we know the importance of providing users with enough information about their requests and how it was processed, let’s focus on how we can configure our API to help us do that.One aspect of such meaningful experience is Request Validation (400 Error Range). For that purpose I am using a library called Fluent Validation.
What are some alternatives?
zod - TypeScript-first schema validation with static type inference
Guard - A high-performance, extensible argument validation library.
joi - The most powerful data validation library for JS [Moved to: https://github.com/hapijs/joi]
CsvHelper - Library to help reading and writing CSV files
class-transformer - Decorator-based transformation, serialization, and deserialization between objects and classes.
ReactJS.NET - .NET library for JSX compilation and server-side rendering of React components
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.
Mediator.Net - A simple mediator for .Net for sending command, publishing event and request response with pipelines supported
ajv - The fastest JSON schema Validator. Supports JSON Schema draft-04/06/07/2019-09/2020-12 and JSON Type Definition (RFC8927)
MediatR - Simple, unambitious mediator implementation in .NET
io-ts - Runtime type system for IO decoding/encoding
Enums.NET - Enums.NET is a high-performance type-safe .NET enum utility library