Lianja

Send a Staged REST Request with No Body

Demonstrates Rest.SendReqNoBody, which sends a request without a body as the first step of the staged request model. After it succeeds, the response header and body are read separately.

Background. The staged request model separates sending from reading: a SendReq method transmits the request, ReadResponseHeader reads the status line and headers, and a ReadResp method reads the body. This gives fine control over large or streamed messages compared with the single-call full-request methods.

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llSuccess = .F.

loRest = createobject("CkRest")
llBTls = .T.
llBAutoReconnect = .T.
llSuccess = loRest.Connect("example.com",443,llBTls,llBAutoReconnect)
if (llSuccess = .F.) then
    ? loRest.LastErrorText
    release loRest
    return
endif

//  Send a request without a request body.  This is a low-level send: after it succeeds, read the
//  response header and body separately.
llSuccess = loRest.SendReqNoBody("GET","/api/items/123")
if (llSuccess = .F.) then
    ? loRest.LastErrorText
    release loRest
    return
endif

//  After sending, read the response status line and header fields.  The return value is the HTTP
//  status code, or -1 if no response was received.
lnStatusCode = loRest.ReadResponseHeader()
if (lnStatusCode < 0) then
    ? loRest.LastErrorText
    release loRest
    return
endif

? "Response status code: " + str(lnStatusCode)

//  Read the response body as text.
lcResponseBody = loRest.ReadRespBodyString()
if (loRest.LastMethodSuccess = .F.) then
    ? loRest.LastErrorText
    release loRest
    return
endif

? lcResponseBody


release loRest