Overview

Mockend random generator is extremely flexible. It provides all the building blocks to generate any value.

See Custom Data for ways to provide your own data.

Meta

_.items

Use this field to control how many items you want Mockend to create (default/max: 100). For example, to create 10 posts:

{
  "Post": {
    "_": { "items": 10 }
  }
}

Primitives

string|string[]

Generates a random string.

{ "title": { "string": {} }

Pick a random string.

{
  "category": {
    "string": ["One", "Two"]
  }
}

int|int[]

Generates a random integer between min and max.

{ "likes": { "int": { "min": 0, "max": 1000000 } } }

Pick a random integer in array.

{
  "code": {
    "int": [100, 200, 300]
  }
}

boolean

Generates a random boolean.

{ "isPublished": { "boolean": {} } }

Dates

dateTime

Generates a random RFC3339 (opens in a new tab) DateTime between min and max.

{
  "createdAt: {
    "dateTime": {
      "min": "2010-01-01T00:00:00Z",
      "max": "2020-12-31T23:59:59Z"
    }
  }
}

Lorem ipsum

loremWord

Generates a random word.

{
  "tag": {
    "loremWord": {}
  }
}

loremWords

Generates random words between minLength and maxLength.

{
  "title": {
    "loremWords": { "minLength": 5, "maxLength": 20 }
  }
}

loremSentences

Generates random sentences between minLength and maxLength.

{
  "longDescription": {
    "loremSentences": { "minLength": 100, "maxLength": 200 }
  }
}

loremParagraphs

Generates random paragraphs between minLength and maxLength.

{
  "text": {
    "loremParagraphs": { "minLength": 200, "maxLength": 500 }
  }
}

Regexp

Generates a random string based on regular expression.

{ "name": { "regexp": "[A-Z][a-z]{5,10}" } }

Examples

regexp generator is a powerful way to create any string. Here are some examples to get you started. Feel free to adapt them to suit your needs.

Pictures

{
  "avatar": {
    "regexp": "https://i\\.pravatar\\.cc/150\\?u=[0-9]{5}"
  },
  "photo": {
    "regexp": "https://picsum\\.photos/seed/[0-9]{5}/1920/1080"
  }
}

Generates URLs to online services with a random seed ([0-9]{5} = 5 random numbers).

Names

{ "firstName": { "regexp": "[A-Z][a-z]{5,10}" } }

Generates a random string starting with an uppercase letter and between 5 to 10 lowercase letters.

Emails

{ "email": { "regexp": "[a-z]{5,10}@[a-z]{5}\\.[a-z]{2,3}" } }

Generates an email containing @ and with a domain of 2 or 3 letters.

Hex colors

{ "color": { "regexp": "#[0-9A-F]{6}" } }

Generates an hex color.