Classic ASP
Classic ASP
QuickBooks - Automatically Refresh Access Token with No User Interaction
See more QuickBooks Examples
Demonstrates how to automaticaly refresh an expired access token and retry the request after a 401 authorization error.Chilkat Classic ASP Downloads
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
success = 0
' 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"
' }
set jsonToken = Server.CreateObject("Chilkat.JsonObject")
success = jsonToken.LoadFile("qa_data/tokens/qb-access-token.json")
set rest = Server.CreateObject("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.
bAutoReconnect = 1
success = rest.Connect("sandbox-quickbooks.api.intuit.com",443,1,bAutoReconnect)
If (success = 0) Then
Response.Write "<pre>" & Server.HTMLEncode( rest.LastErrorText) & "</pre>"
Response.End
End If
set sbAuth = Server.CreateObject("Chilkat.StringBuilder")
success = sbAuth.Append("Bearer ")
success = sbAuth.Append(jsonToken.StringOf("access_token"))
rest.Authorization = sbAuth.GetAsString()
success = rest.AddHeader("Accept","application/json")
rest.AllowHeaderFolding = 0
' The company ID is 123146096291789
' The employee ID is 58
responseBody = rest.FullRequestNoBody("GET","/v3/company/123146096291789/employee/58?minorversion=45")
If (rest.LastMethodSuccess = 0) Then
Response.Write "<pre>" & Server.HTMLEncode( rest.LastErrorText) & "</pre>"
Response.End
End If
' If we get a 401 authorization error, then it's likely because the access token expired.
' We can automatically refresh it without interaction from the user.
If (rest.ResponseStatusCode = 401) Then
set oauth2 = Server.CreateObject("Chilkat.OAuth2")
oauth2.TokenEndpoint = "https://oauth.platform.intuit.com/oauth2/v1/tokens/bearer"
' Replace these with actual values.
oauth2.ClientId = "QUICKBOOKS-CLIENT-ID"
oauth2.ClientSecret = "QUICKBOOKS-CLIENT-SECRET"
' Get the "refresh_token"
oauth2.RefreshToken = jsonToken.StringOf("refresh_token")
' Send the HTTP POST to refresh the access token..
success = oauth2.RefreshAccessToken()
If (success = 0) Then
Response.Write "<pre>" & Server.HTMLEncode( oauth2.LastErrorText) & "</pre>"
Response.End
End If
Response.Write "<pre>" & Server.HTMLEncode( "New access token: " & oauth2.AccessToken) & "</pre>"
' Update the JSON with the new tokens.
success = jsonToken.UpdateString("access_token",oauth2.AccessToken)
' Save the new JSON access token response to a file.
' The access + refresh tokens contained in this JSON will be needed for the next refresh.
set sbJson = Server.CreateObject("Chilkat.StringBuilder")
jsonToken.EmitCompact = 0
success = jsonToken.EmitSb(sbJson)
success = sbJson.WriteFile("qa_data/tokens/qb-access-token.json","utf-8",0)
Response.Write "<pre>" & Server.HTMLEncode( "OAuth2 token refreshed!") & "</pre>"
Response.Write "<pre>" & Server.HTMLEncode( "New Access Token = " & oauth2.AccessToken) & "</pre>"
sbAuth.Clear
success = sbAuth.Append("Bearer ")
success = sbAuth.Append(oauth2.AccessToken)
rest.Authorization = sbAuth.GetAsString()
' Now retry the request with the refreshed access token...
responseBody = rest.FullRequestNoBody("GET","/v3/company/123146096291789/employee/58?minorversion=45")
If (rest.LastMethodSuccess = 0) Then
Response.Write "<pre>" & Server.HTMLEncode( rest.LastErrorText) & "</pre>"
Response.End
End If
End If
' We should expect a 200 response if successful.
If (rest.ResponseStatusCode <> 200) Then
Response.Write "<pre>" & Server.HTMLEncode( "Request Header: ") & "</pre>"
Response.Write "<pre>" & Server.HTMLEncode( rest.LastRequestHeader) & "</pre>"
Response.Write "<pre>" & Server.HTMLEncode( "----") & "</pre>"
Response.Write "<pre>" & Server.HTMLEncode( "Response StatusCode = " & rest.ResponseStatusCode) & "</pre>"
Response.Write "<pre>" & Server.HTMLEncode( "Response StatusLine: " & rest.ResponseStatusText) & "</pre>"
Response.Write "<pre>" & Server.HTMLEncode( "Response Header:") & "</pre>"
Response.Write "<pre>" & Server.HTMLEncode( rest.ResponseHeader) & "</pre>"
Response.Write "<pre>" & Server.HTMLEncode( responseBody) & "</pre>"
Response.End
End If
' Load the JSON response into a JSON object for parsing.
' A sample JSON response is shown below.
set json = Server.CreateObject("Chilkat.JsonObject")
success = json.Load(responseBody)
' These will be used for parsing date/time strings..
set dtime = Server.CreateObject("Chilkat.CkDateTime")
bLocalTime = 1
' Show the JSON.
json.EmitCompact = 0
Response.Write "<pre>" & Server.HTMLEncode( json.Emit()) & "</pre>"
' Get some information from the JSON..
Response.Write "<pre>" & Server.HTMLEncode( "Name: " & json.StringOf("Employee.DisplayName")) & "</pre>"
Response.Write "<pre>" & Server.HTMLEncode( "Id: " & json.StringOf("Employee.Id")) & "</pre>"
Response.Write "<pre>" & Server.HTMLEncode( "City: " & json.StringOf("Employee.PrimaryAddr.City")) & "</pre>"
Response.Write "<pre>" & Server.HTMLEncode( "PostalCode: " & json.StringOf("Employee.PrimaryAddr.PostalCode")) & "</pre>"
' Load the CreateTime into a CkDateTime...
success = dtime.SetFromTimestamp(json.StringOf("Employee.MetaData.CreateTime"))
set dt = Server.CreateObject("Chilkat.DtObj")
dtime.ToDtObj bLocalTime,dt
Response.Write "<pre>" & Server.HTMLEncode( dt.Month & "/" & dt.Day & "/" & dt.Year & " " & dt.Hour _
& ":" & dt.Minute) & "</pre>"
Response.Write "<pre>" & Server.HTMLEncode( "Success.") & "</pre>"
' Use this online tool to generate parsing code from sample JSON:
' Generate Parsing Code from JSON
' ------------------------------------------------------
' The JSON response looks like this:
' {
' "Employee": {
' "SSN": "XXX-XX-XXXX",
' "PrimaryAddr": {
' "Id": "116",
' "Line1": "45 N. Elm Street",
' "City": "Middlefield",
' "CountrySubDivisionCode": "CA",
' "PostalCode": "93242"
' },
' "BillableTime": false,
' "domain": "QBO",
' "sparse": false,
' "Id": "98",
' "SyncToken": "0",
' "MetaData": {
' "CreateTime": "2015-07-24T09:34:35-07:00",
' "LastUpdatedTime": "2015-07-24T09:34:35-07:00"
' },
' "GivenName": "Bill",
' "FamilyName": "Miller",
' "DisplayName": "Bill Miller",
' "PrintOnCheckName": "Bill Miller",
' "Active": true,
' "PrimaryPhone": {
' "FreeFormNumber": "234-525-1234"
' }
' },
' "time": "2015-07-24T09:35:54.805-07:00"
'
%>
</body>
</html>