Method: echo

Echos back the clientMessage passed in.

The purpose of this method is to test basic connectivity between the payment integrator and Google.

Responses to this query may be empty if this method does not return an HTTP 200. They are empty in situations where an ErrorResponse with a clear description could be used to help an attacker understand the payment integrator account identifier of other integrators. In these situations, where either the signing key doesn't match, the payment integrator identifier was not found, or the encryption key was unknown, this method will return a HTTP 404 with an empty body.

An example request looks like:


{
  "requestHeader": {
    "protocolVersion": {
      "major": 1,
      "minor": 0,
      "revision": 0
    },
    "requestId": "ZWNobyB0cmFuc2FjdGlvbg",
    "requestTimestamp": "1481899949606"
  },
  "clientMessage": "v1.echo message"
}

An example response looks like:


{
  "responseHeader": {
    "responseTimestamp": "1481900013178",
  },
  "result": "SUCCESS",
  "clientMessage": "v1.echo message",
  "serverMessage": "v1.echo server message"
}

HTTP request

POST https://billpaynotification.googleapis.com/secure-serving/gsp/v1/echo

Request body

The request body contains data with the following structure:

JSON representation
{
  "requestHeader": {
    object (RequestHeader)
  },
  "clientMessage": string
}
Fields
requestHeader

object (RequestHeader)

REQUIRED: Common header for all requests.

clientMessage

string

REQUIRED: Message to echo in the response.

Response body

If successful, the response body contains data with the following structure:

Response object for the echo method.

JSON representation
{
  "responseHeader": {
    object (ResponseHeader)
  },
  "clientMessage": string,
  "serverMessage": string
}
Fields
responseHeader

object (ResponseHeader)

REQUIRED: Common header for all responses.

clientMessage

string

REQUIRED: Message received in the request.

serverMessage

string

OPTIONAL: Server message, independent of the clientMessage being echoed.