Generate Schemas

Effortlessly convert your JSON Object to JSON Schema, Mongoose Schema, or a Generic template for quick documentation / upstart.

Schema Outputs

• Generic
• JSON Schema
• Mongoose Schema

Installation

$ npm install generate-schema --save

Optionally, for the binary install globally with -g (see below)

Usage

var GenerateSchema = require('generate-schema')

// Capture Schema Output
var schema = GenerateSchema.json('Product', [
    {
        "id": 2,
        "name": "An ice sculpture",
        "price": 12.50,
        "tags": ["cold", "ice"],
        "dimensions": {
            "length": 7.0,
            "width": 12.0,
            "height": 9.5
        },
        "warehouseLocation": {
            "latitude": -78.75,
            "longitude": 20.4
        }
    },
    {
        "id": 3,
        "name": "A blue mouse",
        "price": 25.50,
        "dimensions": {
            "length": 3.1,
            "width": 1.0,
            "height": 1.0
        },
        "warehouseLocation": {
            "latitude": 54.4,
            "longitude": -32.7
        }
    }
])

Output:

{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "title": "Product Set",
  "type": "array",
  "items": {
    "type": "object",
    "properties": {
      "id": {
        "type": "number"
      },
      "name": {
        "type": "string"
      },
      "price": {
        "type": "number"
      },
      "tags": {
        "type": "array",
        "items": {
          "type": "string"
        }
      },
      "dimensions": {
        "type": "object",
        "properties": {
          "length": {
            "type": "number"
          },
          "width": {
            "type": "number"
          },
          "height": {
            "type": "number"
          }
        }
      },
      "warehouseLocation": {
        "type": "object",
        "properties": {
          "latitude": {
            "type": "number"
          },
          "longitude": {
            "type": "number"
          }
        }
      }
    },
    "required": [
      "id",
      "name",
      "price",
      "dimensions",
      "warehouseLocation"
    ],
    "title": "Product"
  }
}

Methods

g.generic(Object object)

Generates generic schema where property types are described using primitives

g.json(String title, Mixed object)

Generate JSON Schema from given object.

• title is optional
• object must be of type Object or Array

g.mongoose(Object object)

Generates Mongoose Schema from a given object.

Binary usage

$ generate-schema [-g] [--generic] [<file>]

REPL Mode

When no file is specified you will enter a repl mode.

Example (generate-schema -g):

Welcome to Generate Schema 1.1.0

  Mode: generic

* Example Usage:
  > {a:'b'}
  { a: { type: 'string' } }

To quit type: exit

> {a:'b'}
{
  "a": {
    "type": "string"
  }
}

Modes

• JSON Schema (Default Mode)
• -g, --generic - Generic Mode
• -m, --mongoose - Mongoose Mode

License

MIT