JsonSchema转JSON

Posted 2022-08-11 Jay_帅小伙

先安装所需要的依赖

yarn add underscore json-schema-faker

使用

test（JsonsSchema格式）是假数据

const _ = require('underscore');
const mwapi = require('../utils/schema2json');
 @Get('/schema2json')
  async schema2json() 
    const test:any = 
      schema: 
        $schema: 'http://json-schema.org/draft-04/schema#',
        type: 'object',
        properties: 
          code:  type: 'string', mock:  mock: '555'  ,
          arr: 
            type: 'object',
            properties: 
              item1:  type: 'string', mock:  mock: 'i1'  ,
              item2:  type: 'string', mock:  mock: '@string'  ,
            ,
            description: '数组',
            required: ['item1', 'item2'],
          ,
        ,
        required: ['arr'],
      
    ;
    let schema = test.schema;
    let required = test?.required;
    console.log('mwapi',mwapi)
    let res = mwapi.schemaToJson(schema, 
      alwaysFakeOptionals: _.isUndefined(required) ? true : required,
    );
    console.log('***********',res)
  /**res=
  
	
		"arr": 
			"item1": "i1",
			"item2": "DjTwg^"
		,
		"code": "5556"
	
*/
    return res
  

schema2json.js

const jsf = require('json-schema-faker');
//这里执行mock字段 使用mockjs去执行
jsf.extend('mock', function () 
  return 
    mock: function (xx) 
      return Mock.mock(xx);
    
  ;
);
  /** 如果不加上面一段res会响应如下
	
		"arr": 
			"item1": "fugiat sit incididunt magna",
			"item2": "enim minim aute"
		,
		"code": "quis eiusmod"
	
	*/


const defaultOptions = 
  failOnInvalidTypes: false,
  failOnInvalidFormat: false
;
exports.schemaToJson = function (schema, options = ) 
  Object.assign(options, defaultOptions);

  jsf.option(options);
  let result;
  try 
    result = jsf(schema);
   catch (err) 
    result = err.message;
  
  jsf.option(defaultOptions);
  return result;
;