<img align="right" alt="Ajv logo" width="160" src="http://epoberezkin.github.io/ajv/images/ajv_logo.png">
# Ajv: Another JSON Schema Validator
The fastest JSON Schema validator for node.js and browser with draft 6 support.
[![Build Status](https://travis-ci.org/epoberezkin/ajv.svg?branch=master)](https://travis-ci.org/epoberezkin/ajv)
[![npm version](https://badge.fury.io/js/ajv.svg)](https://www.npmjs.com/package/ajv)
[![npm downloads](https://img.shields.io/npm/dm/ajv.svg)](https://www.npmjs.com/package/ajv)
[![Code Climate](https://codeclimate.com/github/epoberezkin/ajv/badges/gpa.svg)](https://codeclimate.com/github/epoberezkin/ajv)
[![Coverage Status](https://coveralls.io/repos/epoberezkin/ajv/badge.svg?branch=master&service=github)](https://coveralls.io/github/epoberezkin/ajv?branch=master)
[![Greenkeeper badge](https://badges.greenkeeper.io/epoberezkin/ajv.svg)](https://greenkeeper.io/)
[![Gitter](https://img.shields.io/gitter/room/ajv-validator/ajv.svg)](https://gitter.im/ajv-validator/ajv)
## Using version 5
[JSON Schema draft-06](https://trac.tools.ietf.org/html/draft-wright-json-schema-validation-01) is published.
[Ajv version 5.0.0](https://github.com/epoberezkin/ajv/releases/tag/5.0.0) that supports draft-06 is released. It may require either migrating your schemas or updating your code (to continue using draft-04 and v5 schemas).
__Please note__: To use Ajv with draft-04 schemas you need to explicitly add meta-schema to the validator instance:
```javascript
ajv.addMetaSchema(require('ajv/lib/refs/json-schema-draft-04.json'));
```
## Contents
- [Performance](#performance)
- [Features](#features)
- [Getting started](#getting-started)
- [Frequently Asked Questions](https://github.com/epoberezkin/ajv/blob/master/FAQ.md)
- [Using in browser](#using-in-browser)
- [Command line interface](#command-line-interface)
- Validation
- [Keywords](#validation-keywords)
- [Formats](#formats)
- [Combining schemas with $ref](#ref)
- [$data reference](#data-reference)
- NEW: [$merge and $patch keywords](#merge-and-patch-keywords)
- [Defining custom keywords](#defining-custom-keywords)
- [Asynchronous schema compilation](#asynchronous-schema-compilation)
- [Asynchronous validation](#asynchronous-validation)
- Modifying data during validation
- [Filtering data](#filtering-data)
- [Assigning defaults](#assigning-defaults)
- [Coercing data types](#coercing-data-types)
- API
- [Methods](#api)
- [Options](#options)
- [Validation errors](#validation-errors)
- [Related packages](#related-packages)
- [Packages using Ajv](#some-packages-using-ajv)
- [Tests, Contributing, History, License](#tests)
## Performance
Ajv generates code using [doT templates](https://github.com/olado/doT) to turn JSON schemas into super-fast validation functions that are efficient for v8 optimization.
Currently Ajv is the fastest and the most standard compliant validator according to these benchmarks:
- [json-schema-benchmark](https://github.com/ebdrup/json-schema-benchmark) - 50% faster than the second place
- [jsck benchmark](https://github.com/pandastrike/jsck#benchmarks) - 20-190% faster
- [z-schema benchmark](https://rawgit.com/zaggino/z-schema/master/benchmark/results.html)
- [themis benchmark](https://cdn.rawgit.com/playlyfe/themis/master/benchmark/results.html)
Performace of different validators by [json-schema-benchmark](https://github.com/ebdrup/json-schema-benchmark):
[![performance](https://chart.googleapis.com/chart?chxt=x,y&cht=bhs&chco=76A4FB&chls=2.0&chbh=32,4,1&chs=600x416&chxl=-1:%7Cajv%7Cis-my-json-valid%7Cjsen%7Cschemasaurus%7Cthemis%7Cz-schema%7Cjsck%7Cjsonschema%7Cskeemas%7Ctv4%7Cjayschema&chd=t:100,68,61,22.8,17.6,6.6,2.7,0.9,0.7,0.4,0.1)](https://github.com/ebdrup/json-schema-benchmark/blob/master/README.md#performance)
## Features
- Ajv implements full JSON Schema [draft 6](http://json-schema.org/) and draft 4 standards:
- all validation keywords (see [JSON Schema validation keywords](https://github.com/epoberezkin/ajv/blob/master/KEYWORDS.md))
- full support of remote refs (remote schemas have to be added with `addSchema` or compiled to be available)
- support of circular references between schemas
- correct string lengths for strings with unicode pairs (can be turned off)
- [formats](#formats) defined by JSON Schema draft 4 standard and custom formats (can be turned off)
- [validates schemas against meta-schema](#api-validateschema)
- supports [browsers](#using-in-browser) and nodejs 0.10-7.x
- [asynchronous loading](#asynchronous-schema-compilation) of referenced schemas during compilation
- "All errors" validation mode with [option allErrors](#options)
- [error messages with parameters](#validation-errors) describing error reasons to allow creating custom error messages
- i18n error messages support with [ajv-i18n](https://github.com/epoberezkin/ajv-i18n) package
- [filtering data](#filtering-data) from additional properties
- [assigning defaults](#assigning-defaults) to missing properties and items
- [coercing data](#coercing-data-types) to the types specified in `type` keywords
- [custom keywords](#defining-custom-keywords)
- draft-6 keywords `const`, `contains` and `propertyNames`
- draft-6 boolean schemas (`true`/`false` as a schema to always pass/fail).
- keywords `switch`, `patternRequired`, `formatMaximum` / `formatMinimum` and `formatExclusiveMaximum` / `formatExclusiveMinimum` from [JSON-schema extension proposals](https://github.com/json-schema/json-schema/wiki/v5-Proposals) with [ajv-keywords](https://github.com/epoberezkin/ajv-keywords) package
- [$data reference](#data-reference) to use values from the validated data as values for the schema keywords
- [asynchronous validation](#asynchronous-validation) of custom formats and keywords
Currently Ajv is the only validator that passes all the tests from [JSON Schema Test Suite](https://github.com/json-schema/JSON-Schema-Test-Suite) (according to [json-schema-benchmark](https://github.com/ebdrup/json-schema-benchmark), apart from the test that requires that `1.0` is not an integer that is impossible to satisfy in JavaScript).
## Install
```
npm install ajv
```
## <a name="usage"></a>Getting started
Try it in the node REPL: https://tonicdev.com/npm/ajv
The fastest validation call:
```javascript
var Ajv = require('ajv');
var ajv = new Ajv(); // options can be passed, e.g. {allErrors: true}
var validate = ajv.compile(schema);
var valid = validate(data);
if (!valid) console.log(validate.errors);
```
or with less code
```javascript
// ...
var valid = ajv.validate(schema, data);
if (!valid) console.log(ajv.errors);
// ...
```
or
```javascript
// ...
ajv.addSchema(schema, 'mySchema');
var valid = ajv.validate('mySchema', data);
if (!valid) console.log(ajv.errorsText());
// ...
```
See [API](#api) and [Options](#options) for more details.
Ajv compiles schemas to functions and caches them in all cases (using schema serialized with [json-stable-stringify](https://github.com/substack/json-stable-stringify) or a custom function as a key), so that the next time the same schema is used (not necessarily the same object instance) it won't be compiled again.
The best performance is achieved when using compiled functions returned by `compile` or `getSchema` methods (there is no additional function call).
__Please note__: every time validation function or `ajv.validate` are called `errors` property is overwritten. You need to copy `errors` array reference to another variable if you want to use it later (e.g., in the callback). See [Validation errors](#validation-errors)
## Using in browser
You can require Ajv directly from the code you browserify - in this case Ajv will be a part of your bundle.
If you need to use Ajv in several bundles you can create a separate UMD bundle using `npm
没有合适的资源?快使用搜索试试~ 我知道了~
资源推荐
资源详情
资源评论
收起资源包目录
小程序源码提取工具,完美解包,最新脚本,一键提取小程序源代码工具 (2000个子文件)
github.css 378KB
codemirror.css 7KB
style.css 6KB
base.css 5KB
base.css 5KB
common-style.css 1KB
prettify.css 677B
prettify.css 677B
github.html 426KB
html-with-base64image.html 206KB
npm-config.html 44KB
npm-json.html 36KB
package.json.html 36KB
npm-install.html 24KB
semver.html 21KB
index.html 18KB
mute.js.html 15KB
npm-scripts.html 15KB
npm-developers.html 12KB
npm-global.html 12KB
npm-folders.html 12KB
npm-index.html 11KB
index.html 11KB
npm-disputes.html 10KB
npm.html 10KB
npm-package-locks.html 9KB
npm-coding-style.html 9KB
package-lock.json.html 9KB
README.html 9KB
npm-version.html 8KB
npm-doctor.html 8KB
npm-scope.html 8KB
npm-update.html 8KB
npm-registry.html 7KB
npm-outdated.html 7KB
LICENSE.html 7KB
npm-run-script.html 7KB
npm-adduser.html 6KB
npm-dist-tag.html 6KB
npm-publish.html 6KB
npm-view.html 6KB
npm-search.html 6KB
npmrc.html 6KB
npm-cache.html 6KB
npm-profile.html 6KB
npm-ls.html 6KB
npm-link.html 6KB
npm-access.html 6KB
npm-orgs.html 5KB
npm-token.html 5KB
npm-team.html 5KB
npm-config.html 5KB
test.html 5KB
removing-npm.html 5KB
npm-uninstall.html 5KB
npm-logout.html 4KB
npm-unpublish.html 4KB
npm-dedupe.html 4KB
npm-docs.html 4KB
index.html 4KB
npm-bugs.html 4KB
npm-shrinkwrap.json.html 4KB
npm-owner.html 4KB
npm-help.html 4KB
npm-edit.html 4KB
npm-init.html 4KB
npm-explore.html 4KB
npm-restart.html 4KB
npm-shrinkwrap.html 4KB
index.html 4KB
npm-help-search.html 4KB
npm-completion.html 4KB
index.html 4KB
npm-start.html 4KB
npm-pack.html 4KB
npm-prune.html 4KB
npm-deprecate.html 3KB
npm-install-test.html 3KB
npm-repo.html 3KB
npm-prefix.html 3KB
npm-build.html 3KB
index.html 3KB
npm-stars.html 3KB
npm-star.html 3KB
npm-ping.html 3KB
index.html 3KB
npm-root.html 3KB
npm-bin.html 3KB
npm-test.html 3KB
npm-stop.html 3KB
npm-rebuild.html 3KB
npm-whoami.html 3KB
npm-bundle.html 3KB
index.html 3KB
index.js.html 2KB
docfoot.html 2KB
props.html 2KB
typescript.html 2KB
test-apart-ctx.html 606B
dochead.html 306B
共 2000 条
- 1
- 2
- 3
- 4
- 5
- 6
- 20
资源评论
- jxfy20062020-02-11工具早都更新了,只能解简单的东西,新的东西根本解不开,分包的也解不开。
第五源码
- 粉丝: 6
- 资源: 15
上传资源 快速赚钱
- 我的内容管理 展开
- 我的资源 快来上传第一个资源
- 我的收益 登录查看自己的收益
- 我的积分 登录查看自己的积分
- 我的C币 登录后查看C币余额
- 我的收藏
- 我的下载
- 下载帮助
最新资源
- delphi实现DBGrid全选和反选功能
- 25C11F41-2B2A-4D1A-AAA8-7C654526B129.pdf
- Android Studio Jellyfish(android-studio-2023.3.1.18-cros.deb)
- MVC+EF框架+EasyUI实现权限管理源码程序
- python第66-75天,Day66-75.rar
- python后端服务project-of-tornado.rar
- python测验,hello-tornado.rar
- 基于SpringBoot+Vue3快速开发平台、自研工作流引擎源码设计.zip
- docker安装部署全流程
- 基于树莓派的人脸识别系统python源码+项目部署说明+超详细代码注释.zip
资源上传下载、课程学习等过程中有任何疑问或建议,欢迎提出宝贵意见哦~我们会及时处理!
点击此处反馈
安全验证
文档复制为VIP权益,开通VIP直接复制
信息提交成功