openapi-sampler

Tool for generation samples based on OpenAPI payload/response schema

Features

• Deterministic (given a particular input, will always produce the same output)
• Supports compound keywords: allOf, oneOf, anyOf, if/then/else
• Supports additionalProperties with x-additionalPropertiesName
• Uses const, examples, enum and default where possible - in this order
• Good array support: supports contains, minItems, maxItems, and tuples (items as an array)
• Supports minLength, maxLength, min, max, exclusiveMinimum, exclusiveMaximum, (limited) pattern
• Supports the following string formats:
  • email
  • idn-email
  • password
  • date-time
  • date
  • time
  • ipv4
  • ipv6
  • hostname
  • idn-hostname
  • uri
  • uri-reference
  • uri-template
  • iri
  • iri-reference
  • uuid
  • json-pointer
  • relative-json-pointer
  • regex
• Infers schema type automatically following same rules as json-schema-faker
• Support for $ref resolving
• Has basic supports for JSON Schema draft 7 (thanks to @P0lip from @stoplightio for contributing)

Installation

Install using npm

npm install openapi-sampler

or using yarn

yarn add openapi-sampler

Then require it in your code:

1var OpenAPISampler = require('openapi-sampler');

Usage

OpenAPISampler.sample(schema, [options], [spec])

• schema (required) - object An OpenAPI Schema Object or a JSON Schema Draft 7 document.
• options (optional) - object Available options:
  • skipNonRequired - boolean Don't include non-required object properties not specified in required property of the schema object
  • skipReadOnly - boolean Don't include readOnly object properties
  • skipWriteOnly - boolean Don't include writeOnly object properties
  • quiet - boolean Don't log console warning messages
• spec - whole specification where the schema is taken from. Required only when schema may contain $ref. spec must not contain any external references

Example

1const OpenAPISampler = require('.');
2OpenAPISampler.sample({
3  type: 'object',
4  properties: {
5    a: {type: 'integer', minimum: 10},
6    b: {type: 'string', format: 'password', minLength: 10},
7    c: {type: 'boolean', readOnly: true}
8  }
9}, {skipReadOnly: true});
10// { a: 10, b: 'pa$$word_q' }