(Lianja) Example: Http.DownloadAppend method

Demonstrates the DownloadAppend method.

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llSuccess = .F.

llSuccess = .F.

lcTargetPath = "c:/temp/qa_output/download.txt"

loHttp = createobject("CkHttp")
loHttp.KeepResponseBody = .T.

// Assume the target file in the local filesystem does not yet exist.
llSuccess = loHttp.DownloadAppend("https://chilkatsoft.com/testData/helloWorld.txt",lcTargetPath)
lnStatusCode = loHttp.LastStatus
if (lnStatusCode = 0) then
    // Unable to either send the request or get the response.
    ? loHttp.LastErrorText
    release loHttp
    return
endif

// Should be 200.
? "Response status code: " + str(lnStatusCode)

// Examine the contents of the file.
loSb = createobject("CkStringBuilder")
loSb.LoadFile(lcTargetPath,"utf-8")
? loSb.GetAsString()

// Output: 
// Response status code: 200
// Hello World!

// Download another text file and append to the target file.
llSuccess = loHttp.DownloadAppend("https://chilkatsoft.com/testData/this_is_a_test.txt",lcTargetPath)
lnStatusCode = loHttp.LastStatus
if (lnStatusCode = 0) then
    // Unable to either send the request or get the response.
    ? loHttp.LastErrorText
    release loHttp
    release loSb
    return
endif

// Should be 200.
? "Response status code: " + str(lnStatusCode)

// Examine the contents of the file.
loSb.LoadFile(lcTargetPath,"utf-8")
? loSb.GetAsString()

// Output:
// Response status code: 200
// Hello World!This is a Test.

// Delete the local target file.
loFac = createobject("CkFileAccess")
loFac.FileDelete(lcTargetPath)

// Try to download a file that does not exist:
llSuccess = loHttp.DownloadAppend("https://chilkatsoft.com/testData/does_not_exist.txt",lcTargetPath)
lnStatusCode = loHttp.LastStatus
if (lnStatusCode = 0) then
    // Unable to either send the request or get the response.
    ? loHttp.LastErrorText
else
    // We got a response, and we already know it wasn't a 200 success response.
    // It should be a 404 not found.
    ? "Response status code: " + str(lnStatusCode)
    // Examine the response body.
    ? "Response body:"
    ? loHttp.LastResponseBody
endif



release loHttp
release loSb
release loFac