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(Xojo Plugin) Refresh QuickBooks OAuth2 Access Token

Demonstrates how to refresh a QuickBooks OAuth2 access token.

Chilkat Xojo Plugin Download

Xojo Plugin for Windows, Linux, Mac OS X, and ARM

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

// See Get QuickBooks OAuth2 Access Token 
// for sample code showing how to obtain a QuickBooks access token for desktop apps.

// This example assumes we previously obtained an OAuth2 access token for QuickBooks.

Dim jsonToken As New Chilkat.JsonObject
Dim success As Boolean
success = jsonToken.LoadFile("qa_data/tokens/qb-access-token.json")
If (success <> True) Then
    System.DebugLog("Failed to load qb-access-token.json")
    Return
End If

// The access token JSON looks something like this:

// {
//   "expires_in": 3600,
//   "x_refresh_token_expires_in": 8726400,
//   "refresh_token": "L011546037639r ... 3vR2DrbOmg0Sdagw",
//   "access_token": "eyJlbmMiOiJBMTI4Q0 ... oETJEMbeggg",
//   "token_type": "bearer"
// }

Dim oauth2 As New 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 <> True) Then
    System.DebugLog(oauth2.LastErrorText)
    Return
End If

// 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.
Dim sbJson As New Chilkat.StringBuilder
jsonToken.EmitCompact = False
success = jsonToken.EmitSb(sbJson)
success = sbJson.WriteFile("qa_data/tokens/qb-access-token.json","utf-8",False)

System.DebugLog("OAuth2 token refreshed!")
System.DebugLog("New Access Token = " + oauth2.AccessToken)

 

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