VBScript

HTTP POST JSON and Parse JSON Response

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Demonstrates how to send a JSON POST and then parse the JSON response. VBScript

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
'Create a Unicode (utf-16) output text file.
Set outFile = fso.CreateTextFile("output.txt", True, True)

success = 0

' This example assumes the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

set json = CreateObject("Chilkat.JsonObject")

success = json.LoadFile("qa_data/json/jsonBodyForHttpPost.json")
If (success = 0) Then
    outFile.WriteLine(json.LastErrorText)
    WScript.Quit
End If

set http = CreateObject("Chilkat.Http")

set resp = CreateObject("Chilkat.HttpResponse")
success = http.HttpJson("POST","https://test.something.com/XYZ/API/v1/CreditInsuranceCalculator/CalculatePremiums",json,"application/json",resp)
If (success = 0) Then
    outFile.WriteLine(http.LastErrorText)
    WScript.Quit
End If

set jsonResp = CreateObject("Chilkat.JsonObject")
success = jsonResp.Load(resp.BodyStr)

jsonResp.EmitCompact = 0
outFile.WriteLine(jsonResp.Emit())

' The JSON response to be parsed looks like this:
' {
'   "LifeAmount": 513.85,
'   "LifeResidualAmount": 123.38,
'   "CriticalIllnessAmount": 0,
'   "CriticalIllnessResidualAmount": 0,
'   "DisabilityAmount": 881.70,
'   "PolicyFee": 0.00,
'   "PolicyFeeSecondary": 0,
'   "PolicyFeeHidden": 50.00,
'   "PolicyFeeHiddenSecondary": 0
' }

' We can get the floating point numbers as strings.  Then convert to double
' using the appropriate string-to-double conversion for your programming language.
' For example, in C++ use atof.  In C# use Convert.ToDouble.  
lifeAmount = jsonResp.StringOf("LifeAmount")
lifeResidualAmount = jsonResp.StringOf("LifeResidualAmount")

outFile.WriteLine("LifeAmount = " & lifeAmount)
outFile.WriteLine("LifeResidualAmount = " & lifeResidualAmount)

outFile.Close