(VB.NET) QuickBooks - Read an Employee (with Error Response)

Demonstrates how to fetch the information for a specific Quickbooks employee, but tries to fetch using an invalid employee id. Shows the error response and how to parse it.

For more information, see https://developer.intuit.com/app/developer/qbo/docs/api/accounting/all-entities/employee#read-an-employee

Chilkat .NET Downloads Chilkat .NET Framework Chilkat for .NET Core

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

' Get our previously obtained OAuth2 access token, which should contain JSON like this:
' {
'   "expires_in": 3600,
'   "x_refresh_token_expires_in": 8726400,
'   "refresh_token": "L011546037639r ... 3vR2DrbOmg0Sdagw",
'   "access_token": "eyJlbmMiOiJBMTI4Q0 ... oETJEMbeggg",
'   "token_type": "bearer"
' }

Dim jsonToken As New Chilkat.JsonObject
Dim success As Boolean = jsonToken.LoadFile("qa_data/tokens/qb-access-token.json")

Dim rest As New Chilkat.Rest

' Connect using TLS.
' A single REST object, once connected, can be used for many Quickbooks REST API calls.
' The auto-reconnect indicates that if the already-established HTTPS connection is closed,
' then it will be automatically re-established as needed.
Dim bAutoReconnect As Boolean = True
success = rest.Connect("sandbox-quickbooks.api.intuit.com",443,True,bAutoReconnect)
If (success <> True) Then
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
End If


Dim sbAuth As New Chilkat.StringBuilder
sbAuth.Append("Bearer ")
sbAuth.Append(jsonToken.StringOf("access_token"))
rest.Authorization = sbAuth.GetAsString()

rest.AddHeader("Accept","application/json")
rest.AllowHeaderFolding = False

' The company ID is 123146096291789
' The employee ID is 999  (There is no employee with this ID and we should get a 400 response code w/ a response body indicating the error.)
Dim responseBody As String = rest.FullRequestNoBody("GET","/v3/company/123146096291789/employee/999?minorversion=45")
If (rest.LastMethodSuccess <> True) Then
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
End If


' Load the JSON response into a JSON object for parsing.
' A sample JSON response is shown below.
Dim json As New Chilkat.JsonObject
json.Load(responseBody)
json.EmitCompact = False
Debug.WriteLine(json.Emit())

' A 400 response is what we'd expect if trying to query for a non-existent employee ID
If (rest.ResponseStatusCode <> 400) Then
    Debug.WriteLine("Request Header: ")
    Debug.WriteLine(rest.LastRequestHeader)
    Debug.WriteLine("----")
    Debug.WriteLine("Response StatusCode = " & rest.ResponseStatusCode)
    Debug.WriteLine("Response StatusLine: " & rest.ResponseStatusText)
    Debug.WriteLine("Response Header:")
    Debug.WriteLine(rest.ResponseHeader)
    Exit Sub
End If


' If we got here, the response status code was 400..
' Iterate over the errors..
Dim numErrors As Integer = json.SizeOfArray("Fault.Error")
Dim i As Integer = 0
While i < numErrors

    json.I = i
    Debug.WriteLine("Message: " & json.StringOf("Fault.Error[i].Message"))
    Debug.WriteLine("Detail: " & json.StringOf("Fault.Error[i].Detail"))
    Debug.WriteLine("code: " & json.StringOf("Fault.Error[i].code"))
    Debug.WriteLine("----")
    i = i + 1
End While

' ------------------------------------------------------
' The JSON error response looks like this:

' {
'   "Fault": {
'     "Error": [
'       {
'         "Message": "Object Not Found",
'         "Detail": "Object Not Found : Something you're trying to use has been made inactive. Check the fields with accounts, customers, items, vendors or employees.",
'         "code": "610",
'         "element": ""
'       }
'     ],
'     "type": "ValidationFault"
'   },
'   "time": "2020-03-07T10:21:19.089-08:00"
' }