Visual FoxPro

Read the REST Response Body into a StringBuilder

Demonstrates Rest.ReadRespSb, which reads the response body as text into a StringBuilder, replacing its previous contents.

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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LOCAL lnSuccess
LOCAL loRest
LOCAL lnBTls
LOCAL lnBAutoReconnect
LOCAL lnStatusCode
LOCAL loSbResponse
LOCAL lcResponseBody

lnSuccess = 0

loRest = CreateObject('Chilkat.Rest')
lnBTls = 1
lnBAutoReconnect = 1
lnSuccess = loRest.Connect("example.com",443,lnBTls,lnBAutoReconnect)
IF (lnSuccess = 0) THEN
    ? loRest.LastErrorText
    RELEASE loRest
    CANCEL
ENDIF

lnSuccess = loRest.SendReqNoBody("GET","/api/items/123")
IF (lnSuccess = 0) THEN
    ? loRest.LastErrorText
    RELEASE loRest
    CANCEL
ENDIF

lnStatusCode = loRest.ReadResponseHeader()
IF (lnStatusCode < 0) THEN
    ? loRest.LastErrorText
    RELEASE loRest
    CANCEL
ENDIF

*  Read the response body as text into a StringBuilder, replacing its previous contents.
loSbResponse = CreateObject('Chilkat.StringBuilder')
lnSuccess = loRest.ReadRespSb(loSbResponse)
IF (lnSuccess = 0) THEN
    ? loRest.LastErrorText
    RELEASE loRest
    RELEASE loSbResponse
    CANCEL
ENDIF

lcResponseBody = loSbResponse.GetAsString()
IF (loSbResponse.LastMethodSuccess = 0) THEN
    ? loSbResponse.LastErrorText
    RELEASE loRest
    RELEASE loSbResponse
    CANCEL
ENDIF

? lcResponseBody

RELEASE loRest
RELEASE loSbResponse