The fastest JSON schema Validator. Supports JSON Schema draft-04/06/07/2019-09/2020-12 and JSON Type Definition (RFC8927) (by ajv-validator)

Ajv Alternatives

Similar projects and alternatives to ajv

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a better ajv alternative or higher similarity.

ajv reviews and mentions

Posts with mentions or reviews of ajv. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-04-07.
  • Popular Libraries For Building Type-safe Web Application APIs
    6 projects | dev.to | 7 Apr 2024
    Ajv’s documentation is available here.
  • 6 Reasons why JSON Schema is worth your time
    5 projects | dev.to | 3 Oct 2023
    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
    12 projects | dev.to | 5 Jul 2023
    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?
    3 projects | /r/typescript | 27 Jun 2023
    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
    4 projects | dev.to | 31 May 2023
    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
    4 projects | dev.to | 5 May 2023
    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?
    4 projects | /r/reactjs | 30 Apr 2023
    I think you're looking for a json schema validator like Ajv or Zod.
  • 5 useful JSON tools to improve your productivity
    4 projects | dev.to | 11 Apr 2023
    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?
    2 projects | news.ycombinator.com | 23 Mar 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
    2 projects | /r/node | 16 Mar 2023
    Fastify uses ajv for data validation under the hood. I'd recommend ArkType or Zod
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Basic ajv repo stats
7 days ago

ajv-validator/ajv is an open source project licensed under MIT License which is an OSI approved license.

The primary programming language of ajv is TypeScript.

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