How to convert sample JSON into JSON schema in Java

Question

I want convert json document into json schema. I googled it but not got the exact idea according to my requirement.

here is JSON

 {
 "empId":1001,
 "firstName":"jonh",
 "lastName":"Springer",
 "title": "Engineer",
 "address": {
    "city": "Mumbai",
    "street": "FadkeStreet",
    "zipCode":"420125",
    "privatePhoneNo":{
            "privateMobile": "2564875421",
            "privateLandLine":"251201546"
    }
},
"salary": 150000,
"department":{
     "departmentId": 10521,
     "departmentName": "IT",
     "companyPhoneNo":{
             "cMobile": "8655340546",
             "cLandLine": "10251215465"
      },
     "location":{
             "name": "mulund",
             "locationId": 14500
      }
  }
}

I want to generate like this

   {
   "$schema": "http://json-schema.org/draft-04/schema#",
   "type": "object",
   "title": "Employee",
   "properties": {
     "empId": {
           "type": "integer"
      },
      "firstName":{
           "type":"string"
      },
      "lastName": {
           "type": "string"
      },
      "title": {
           "type": "string"
     },
     "address": {
         "type": "object",
         "properties": {
                       "city": {
                                 "type": "string"
                        },
                        "street": {
                                 "type": "string"
                        },
                        "zipCode": {
                                 "type": "string"
                        },
                       "privatePhoneNo": {
                                 "type": "object",
                                 "properties": {
                                        "privateMobile": {
                                                 "type": "string"
                                         },
                                        "privateLandLine": {
                                                 "type": "string"
                                         }
                                   }
                          }
            }
      },
      "salary": {
            "type": "number"
      },
      "department": {
            "type": "object",
            "properties": {
                   "departmentId": {
                            "type": "integer"
                    },
                    "departmentName": {
                            "type": "string"
                    },
                    "companyPhoneNo": {
                            "type": "object",
                            "properties": {
                                         "cMobile": {
                                              "type": "string"
                                          },
                                         "cLandLine": {
                                              "type": "string"
                                          }
                              }
     },
     "location": {
                 "type": "object",
                 "properties": {
                               "name": {
                                     "type": "string"
                                 },
                              "locationId": {
                                     "type": "integer"
                               }
                   }
      }
    }
   }
 }
}

Is there any library is doing like this or what is another way?

Have you tried Google? google.com/webhp?hl=en#hl=en&q=json+schema+generator — Andreas
– Andreas, Commented Nov 25, 2015 at 7:32
are you converting json to object .if yes then this might be helpful github.com/FasterXML/jackson-module-jsonSchema — rupesh_padhye
– rupesh_padhye, Commented Nov 25, 2015 at 7:38
No @rupesh_padhye . I want to convert json document in json schema is ther any other way ? — Chaitanya Ghumare
– Chaitanya Ghumare, Commented Nov 25, 2015 at 8:04

Dharman · Accepted Answer · 2021-04-27 10:58:43Z

2

It's been a while since this was asked but I was having the same issue. So far the best solution I have come across is this library: https://github.com/saasquatch/json-schema-inferrer

I found this from the json-schema doc itself. It has links to implementations for other languages as well: https://json-schema.org/implementations.html#from-data

edited Apr 27, 2021 at 10:58

Dharman♦

34k27 gold badges106 silver badges158 bronze badges

answered Apr 27, 2021 at 10:52

Tharindu Weerasinghe

18110 bronze badges

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Comments

Garik Khachanyan · Accepted Answer · 2015-11-25 07:45:19Z

1

https://github.com/perenecabuto/json_schema_generator

http://jsonschema.net/#/

I'm think this maybe will help

answered Nov 25, 2015 at 7:45

Garik Khachanyan

361 silver badge4 bronze badges

3 Comments

Chaitanya Ghumare Over a year ago

yes @Garik Khachanyan like this I want to generate it but I want to generate by java code.I want to create utility that converts json to json schema

Chaitanya Ghumare Over a year ago

I am not understanding how to use json_schema_generator git hub from java code ?

Garik Khachanyan Over a year ago

github.com/reinert/JJSchema/blob/master/src/main/java/com/… look at here, its for java

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