(Xojo Plugin) Check PayPal Access Token Expiration

Checks to see if the PayPal access token expired.

Chilkat Xojo Plugin Download Xojo Plugin for Windows, Linux, Mac OS X, and ARM, ARM64

// Note: Requires Chilkat v9.5.0.64 or greater.

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

// In the example linked here: PayPal OAuth2 Token,
// we fetched a PayPal access token and saved it to a JSON file.
// We also recorded the current date/time.
// Load this JSON file and compare the current date/time with the fetch date/time
// and the "expires_in" value to see if the token is expired.

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

// Get the current date/time.
Dim dateTime As New Chilkat.CkDateTime
Dim bLocalTime As Boolean
bLocalTime = False
Dim dtNow As Int32
dtNow = dateTime.GetAsUnixTime(bLocalTime)

// Get the access token create date/time
Dim dtCreate As Int32
dtCreate = json.IntOf("tokenCreateTimeUtc")

// Find out how many seconds have elapsed.
Dim numSeconds As Int32
numSeconds = dtNow - dtCreate

// Get the expires_in value from the JSON.
Dim expires_in As Int32
expires_in = json.IntOf("expires_in")

System.DebugLog("token age (in seconds) = " + Str(numSeconds))
System.DebugLog("expires_in = " + Str(expires_in))

// If the token expired, or if it will expire in 5 minutes or less,
// get another token.
If (numSeconds < (expires_in - 300)) Then
    System.DebugLog("The token is not yet expired.  No need to fetch another.")
    Return
End If

System.DebugLog("Time to fetch a new access token...")

// Get another token..
// See the example at Get PayPal OAuth2 Token
// to get another token..