generate

by a-h

Generates Go (golang) Structs from JSON schema.

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generate

Generates Go (golang) Structs and Validation code from JSON schema.

Requirements

  • Go 1.8+

Usage

Install

$ go get -u github.com/a-h/generate/...

or

Build

$ make

Run

$ schema-generate exampleschema.json

Example

This schema

{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "title": "Example",
  "id": "http://example.com/exampleschema.json",
  "type": "object",
  "description": "An example JSON Schema",
  "properties": {
    "name": {
      "type": "string"
    },
    "address": {
      "$ref": "#/definitions/address"
    },
    "status": {
      "$ref": "#/definitions/status"
    }
  },
  "definitions": {
    "address": {
      "id": "address",
      "type": "object",
      "description": "Address",
      "properties": {
        "street": {
          "type": "string",
          "description": "Address 1",
          "maxLength": 40
        },
        "houseNumber": {
          "type": "integer",
          "description": "House Number"
        }
      }
    },
    "status": {
      "type": "object",
      "properties": {
        "favouritecat": {
          "enum": [
            "A",
            "B",
            "C"
          ],
          "type": "string",
          "description": "The favourite cat.",
          "maxLength": 1
        }
      }
    }
  }
}

generates

package main

type Address struct { HouseNumber int json:"houseNumber,omitempty" Street string json:"street,omitempty" }

type Example struct { Address *Address json:"address,omitempty" Name string json:"name,omitempty" Status *Status json:"status,omitempty" }

type Status struct { Favouritecat string json:"favouritecat,omitempty" }

See the test/ directory for more examples.

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