mocking a request with a payload using wiremock - scala

Question

I'm currently trying to mock external server using Wiremock.
One of my external server endpoint takes a payload.
This endpoint is defined as follow :
def sendRequestToMockServer(payload: String) = {
for {
request_entity <- Marshal(payload).to[RequestEntity]
response <- Http().singleRequest(
HttpRequest(
method = HttpMethods.GET,
uri = "http://localhost:9090/login",
entity = request_entity
)
)
} yield {
response
}
}
To mock this endpoint using Wiremock, I have written the following code :
stubFor(
get(urlEqualTo("/login"))
.willReturn(
aResponse()
.withHeader("Content-Type","application/json")
.withBodyFile("wireMockResponse.json")
.withStatus(200)
)
.withRequestBody(matchingJsonPath("requestBody.json"))
)
where I Have defined the request body in the requestBody.json file.
But when I run tests , I keep getting an error indicating that the requested Url is not found.
I'm thinking that the error is related to this line withRequestBody(matchingJsonPath("requestBody.json")), because when I comment it the error disappear.
Any suggestions on how to work around this?

Answer 1

matchingJsonPath does not populate a file at a provided filepath, but instead evaluates the JsonPath provided. See documentation.
I'm not entirely sure there is a way to provide the request body as a .json file. If you copy the contents of the file into the withRequest(equalToJson(_yourJsonHere_)), does it work? If it does, you could get the file contents as a JSON string above the definition and provide it to the function (or I guess, make a function to return a JSON string from a .json file).
Additionally, you could make a custom request matcher that does the parsing for you. I think I'd recommend this only if the above does not work.