ajv
joi
DISCONTINUED
Our great sponsors
ajv | joi | |
---|---|---|
59 | 14 | |
13,279 | 19,052 | |
1.3% | - | |
6.0 | 5.8 | |
5 days ago | over 1 year ago | |
TypeScript | JavaScript | |
MIT License | GNU General Public License v3.0 or later |
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.
ajv
-
6 Reasons why JSON Schema is worth your time
In the JavaScript ecosystem you can use the excellent AJV package to validate any JavaScript object against a JSON schema. This is especially useful to ensure that API contracts are maintained when communicating with other services.
-
Migrate Your Express Application to Fastify
Since Fastify supports schema validation with Ajv, the validate module is no longer required on the /shorten route, and we can specify the JSON schema directly on the route. The controllers for both routes will largely remain the same, except that the res parameter is renamed to reply as before:
-
Has anybody used Typia library?
There's a ton of schema validators out there and most devs have their personal favorite. Mine was zod and is now typebox + ajv.
-
Advanced Fastify: Hooks, Middleware, and Decorators
Fastify uses JSON schema to define the validation rules for each route's input payload, which includes the request body, query string, parameters, and headers. The JSON schema is a standard format for defining the structure and constraints of JSON data, and Fastify uses Ajv, one of the fastest and most efficient JSON schema validators available.
-
Getting Started with Fastify for Node.js
In Fastify, JSON schema validation is a built-in feature that allows you to validate the payload of incoming requests before the handler function is executed. This ensures that incoming data is in the expected format and meets the required criteria for your business logic. Fastify's JSON schema validation is powered by the Ajv library, a fast and efficient JSON schema validator.
-
How can we map data from JSON to typescript object efficiently?
I think you're looking for a json schema validator like Ajv or Zod.
-
5 useful JSON tools to improve your productivity
We can use JSON Schema to validate that our data adheres to a specific structure. Ajv is one popular validator tool for JavaScript applications that allows us to create a schema and then validate JSON against that schema. Here's an example of using Ajv to validate one of the above JSON examples against a schema:
-
Ask HN: JSON API object type definitions and validation in 2023?
Hey HN,
We're designing a new system and have been kicking the can about JSON object definitions and validation. Soon we need to settle on a system to validate API request bodies and provide helpful error messages.
In the past, I've used JSON Schema ( https://json-schema.org/ ) to define definitions and ajv ( https://ajv.js.org/ ) to validate, but it's a bit verbose and ajv validation errors are more cryptic than I'd like to deal with.
TypeSchema looks interesting. It seems solid (and perhaps stable?), but development hasn't been active for 2 years. It also looks like we'd still need to generate JSON Schema and choose a validation library
Anyway, I'm very curious how others are approaching this problem. How do you organize and generate validations for your type definitions? What libraries do you use to validate and provide human readable error messages?
Thank you!
-
Node.js Express API Data Validation: Techniques and Examples
Fastify uses ajv for data validation under the hood. I'd recommend ArkType or Zod
-
How to handle forms in a good way?
I've used Felte to reduce form boilerplate. Felte supports several different validation libraries like Zod. I actually used a custom validation function with ajv (which uses JSON schema).
joi
-
Validator in js
Package Feature Merit Demerit Link Zod TypeScript-first schema validation with static type inference Method chaining and easy to get ts type Newer package zod.dev joi This is almost same to zod Have many plugins Doesn't support static type inference https://github.com/sideway/joi Yup This is almost same to zod Have many plugins Missing some feature, function, deep object, promise... ... https://github.com/jquense/yup class-validator Validate class properties Have many features Code isn't clean https://github.com/typestack/class-validator ajv Validate by json scheme Enable to share schem to other languages Not supported typescript https://ajv.js.org/
-
Ways to validate environment configuration in a forFeature Config in NestJs
Using Joi, a data validator for JavaScript.
-
✨Libshare - Curate & Share Your favorite JavaScript Libraries!
See how I've used joi for validating the request body. You can install and use different libraries like this inside the helpers/routes. Joi can be installed with the following command:
-
awesome npm packages for data validation and parsing(user login validation)
3. joi
-
How to check that an 'unknown' object has a specific key and that the key is a specific type?
⭐ Recommended: Doing this manually is a ton of work, and if you're dealing with unknown objects often it would be better to lean onto a validation library to simplify it. My personal favorite is superstruct, although lots of people like joi or zod. They all do the same thing
-
How do you "stitch & glue" types for all your needs?
The class-validator / class-transform looks really nice for formatting/validation but there is also joi. suretype is attractive since theoretically typeconv could generate jsonSchema for json-schema-faker and Open API docs.
-
A few questions about type guards
Since Typescript is just a language and not a library of some sorts, it doesn't add runtime functionality. If this is what you're after, there's so many libraries that help converting unknown's into known types - joi, yup, superstruct (my choice), purify-ts Codec, io-ts
-
volder is a powerful JavaScript schema builder for value parsing and validation. Define a schema and validate values, volder schema are extremely simple to use, it has custom error messages, custom types, nested schemas.
What does this library provide that is not provided by Yup, Zod, Superstruct (a personal favorite), Joi, Nope, computed-types, typanion, and all the other validation libraries?
-
LoForm: Flutter's version of Formik
True, I remember there's Yup and joi for JavaScript
-
What is the best package for validation?
I didn't realize it. but looks like it's been deprecated as a Hapi project and is now it's own thing: https://github.com/sideway/joi
What are some alternatives?
Yup - Dead simple Object schema validation
class-validator - Decorator-based property validation for classes.
zod - TypeScript-first schema validation with static type inference
Superstruct - A simple and composable way to validate data in JavaScript (and TypeScript).
tv4 - Tiny Validator for JSON Schema v4
schema-inspector - Schema-Inspector is a simple JavaScript object sanitization and validation module.
typebox - Json Schema Type Builder with Static Type Resolution for TypeScript
fastest-validator - :zap: The fastest JS validator library for NodeJS