WireMock

Like a request query parameter or request body value?

Yep! So you can take the values from the request body and use that to determine what your response body or bodyFile is

So, the following mapping:
```{
  "request": {
    "url": "/test"
  },
  "response": {
    "status": 200,
    "bodyFileName": "{{ jsonPath request.body '$.filename'}}.json"
  }
}```
Will return the value of the `filename` key in the request body. So, a request with a body like `{ filename: "test" }` , would resolve to `test.json`, and serve up the file at `__files/test.json`.

<https://wiremock.org/docs/response-templating/#jsonpath-helper>