Echo Mode#

echo: true makes Simuhook return the request body verbatim as the response.

id: debug-echo
method: POST
path: /webhooks/echo
response:
  status_code: 200
  echo: true

curl -X POST http://localhost:8080/webhooks/echo \
  -H "Content-Type: application/json" \
  -d '{"hello":"world"}'
# → {"hello":"world"}

Why It’s Useful#

Echo mode is a debugging tool — it shows you exactly what your client is sending, byte for byte. Combined with the TUI dashboard you can see the request headers, query, body, and the echoed response all in one place.

Behavior#

Setting	Effect
`echo: true`	Returns the request body as-is.
`echo: true` with a `body` configured	`body` is ignored — echo wins.
`echo: true` with `template: true`	`template` is ignored — echo wins.

echo: true takes precedence over template: true and body. The configured body is ignored when echo is active.

Also See#

stubs/echo.yaml — the shipped example stub.