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  • Introduction
  • Use cases for API Simulation
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  • 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
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    • Configuring Journal Indexing
  • Command line interface
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  • 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 back any part of the Request

The most basic thing you might want to do is render back in the response some part of the original request. This can be easily achieved using any of the following functions:

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Last updated 9 months ago

{{ Request.Scheme }} 
{{ Request.QueryParam.myParam }} 
{{ Request.QueryParam.NameOfParameter.[0] }} 
{{ Request.Path.[0] }} 
{{ Request.Method }} 
{{ Request.Host }} 
{{ Request.Body 'jsonpath' '$.id' }} 
{{ Request.Body 'xpath' '/root/id' }}
{{ Request.Body 'jsonpathfromxml' '$.id[0]' }} 
{{ Request.FormData.email }} 
{{ Request.Header.X-Header-Id }} 
{{ Request.Header.X-Header-Id.[0] }} 

Note that where the result is an array, you access it it using zero based indexes. Read more about these .

Also note that the jsonpathfromxml function converts any XML body into a JSON body, but every element in the resultant structure will be an array, and so the jsonpath used to query it must take that into account.

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