Hoverfly Cloud
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  • Introduction
  • Use cases for API Simulation
  • Key concepts
  • What's New
  • Dashboard
  • Simulation
    • Create simulations
    • Configuring Request Matchers
      • JSON Request Matchers on the Body
        • EXACT Matcher
        • JSON Matcher
        • JSON Partial Matcher
        • JSONPath Matcher
        • Regular Expression Matcher
      • Handling the response when Hoverfly cannot match
    • Building a JSON Response
      • Using a JSON object from the Request
      • Looping over a JSON array from the Request
    • Simulating Webhooks and Callbacks
    • Using templating in simulations
      • Render back any part of the Request
      • Render synthetic data
      • Faker functions
      • Render dates and times with offsets
      • Conditional logic
      • Looping over arrays
      • Variables and Arrays
      • Arithmetic operations
      • String operations
      • Validation operations
      • Simulating a persistent backend
      • Transitioning state between requests
      • Combining and nesting templating functions
      • Useful helper functions
      • Avoiding HTML encoding in function return values
    • Using data sources in simulations
      • Querying data sources
      • Updating data in data sources
      • Deleting data from data sources
      • Inserting data into a data source
      • Guidance on using the SQL like syntax
    • Working with Simulation Files
  • Service
    • Start a new service
    • Use a service
    • Update a service
    • Configuring Journal Indexing
  • Command line interface
    • Hoverfly Cloud CLI commands
  • Tutorials
    • Quickstart
    • Creating simulations and services
      • Tutorial 1: Create a service and simulation manually
      • Tutorial 2: Create a service and simulation by importing from a Swagger specification
      • Tutorial 3: Create a service and simulation by capturing real API traffic
    • Response Templating
      • Tutorial 4: Response Templating
    • Hoverfly service modes
      • Tutorial 5: Simulate, Capture, Spy and Passthrough modes
    • Automating with the CLI and API
      • Tutorial 6: Using the CLI and the Hoverfly Cloud API
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  1. Simulation
  2. Using templating in simulations

Render synthetic data

Hoverfly supports over Faker functions as well as a number of simple data generation functions.

PreviousRender back any part of the RequestNextFaker functions

Last updated 9 months ago

FAKER:

Hoverfly supports over 200 Faker functions. You can see the full list

Hoverfly also supports a number of other simple random data generator functions:

A random string

{{ randomString }}

hGfclKjnmwcCds

A random string with a specified length

{{ randomStringLength 2 }}

KC

A random boolean

{{ randomBoolean }}

true

A random integer

{{ randomInteger }}

42

A random integer within a range

{{ randomIntegerRange 1 10 }}

7

A random float

{{ randomFloat }}

42

A random float within a range

{{ randomFloatRange 1.0 10.0 }}

7.4563213423

A random email address

{{ randomEmail }}

BenClark@photolist.com

A random IPv4 address

{{ randomIPv4 }}

224.36.27.8

A random IPv6 address

{{ randomIPv6 }}

41d7:daa0:6e97:6fce:411e:681:f86f:e557

A random UUID

{{ randomUuid }}

here