Chilkat Examples

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(PowerShell) PayPal - Cancel Sent Invoice

Cancels a sent invoice, by ID, and, optionally, sends a notification about the cancellation to the payer, merchant, and Cc: emails.

Note: This example requires Chilkat v9.5.0.65 or greater.

Chilkat .NET Downloads

Chilkat .NET Assemblies

Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll"

# Note: Requires Chilkat v9.5.0.65 or greater.

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

# Load our previously obtained access token. (see PayPal OAuth2 Access Token)
$jsonToken = New-Object Chilkat.JsonObject
$jsonToken.LoadFile("qa_data/tokens/paypal.json")

# Build the Authorization request header field value.
$sbAuth = New-Object Chilkat.StringBuilder
# token_type should be "Bearer"
$sbAuth.Append($jsonToken.StringOf("token_type"))
$sbAuth.Append(" ")
$sbAuth.Append($jsonToken.StringOf("access_token"))

# Make the initial connection.
# A single REST object, once connected, can be used for many PayPal 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.
$rest = New-Object Chilkat.Rest
$bAutoReconnect = $true
$success = $rest.Connect("api.sandbox.paypal.com",443,$true,$bAutoReconnect)
if ($success -ne $true) {
    $($rest.LastErrorText)
    exit
}

# ----------------------------------------------------------------------------------------------
# The code above this comment could be placed inside a function/subroutine within the application
# because the connection does not need to be made for every request.  Once the connection is made
# the app may send many requests..
# ----------------------------------------------------------------------------------------------

# Build the JSON request body containing the reminder information:
$json = New-Object Chilkat.JsonObject
$json.EmitCompact = $false
$json.UpdateString("subject","Past due")
$json.UpdateString("note","Canceling invoice")
$json.UpdateBool("send_to_merchant",$true)
$json.UpdateBool("send_to_payer",$true)
$($json.Emit())

# The JSON created by the above code:

# 	{ 
# 	  "subject": "Past due",
# 	  "note": "Canceling invoice",
# 	  "send_to_merchant": true,
# 	  "send_to_payer": true
# 	}

# Build a path using a previously-sent invoice ID.
$sbPath = New-Object Chilkat.StringBuilder
$sbPath.Append("/v1/invoicing/invoices/invoice_id/cancel")
$numReplacements = $sbPath.Replace("invoice_id","INV2-XPWZ-NUTQ-LNWB-P8NC")

$json.EmitCompact = $true
$sbRequestBody = New-Object Chilkat.StringBuilder
$sbResponseBody = New-Object Chilkat.StringBuilder

$rest.AddHeader("Content-Type","application/json")
$rest.AddHeader("Authorization",$sbAuth.GetAsString())
$json.EmitSb($sbRequestBody)

$success = $rest.FullRequestSb("POST",$sbPath.GetAsString(),$sbRequestBody,$sbResponseBody)
if ($success -ne $true) {
    $($rest.LastErrorText)
    exit
}

$("Response Status Code = " + $rest.ResponseStatusCode)

# In our testing, we received a 204 response, which is a success HTTP response code, but 
# differs from the PayPal REST API reference documentation, which states that a 202 response
# is expected.  I suspect an error in the PayPal documentation, or in the PayPal responder.
# Check for either 202 or 204..
# Did we get a 202 accepted response?
if (($rest.ResponseStatusCode -ne 202) -and ($rest.ResponseStatusCode -ne 204)) {
    $($sbResponseBody.GetAsString())
    $("Failed.")
    exit
}

# The 202/204 response should be empty.  (Again, our experience differs from the online PayPal documentation..)
$("Success.")

 

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