(Ruby) PayPal Send Invoice

Sends a PayPal invoice to a customer.

See also Send Invoice

Chilkat Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

# 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.

# Load our previously obtained access token. (see PayPal OAuth2 Access Token)
jsonToken = Chilkat::CkJsonObject.new()
jsonToken.LoadFile("qa_data/tokens/paypal.json")

# Build the Authorization request header field value.
sbAuth = Chilkat::CkStringBuilder.new()
# 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 = Chilkat::CkRest.new()
bAutoReconnect = true
success = rest.Connect("api.sandbox.paypal.com",443,true,bAutoReconnect)
if (success != true)
    print rest.lastErrorText() + "\n";
    exit
end

# ----------------------------------------------------------------------------------------------
# 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 a path using a draft invoice ID.
sbPath = Chilkat::CkStringBuilder.new()
sbPath.Append("/v1/invoicing/invoices/invoice_id/send")
numReplacements = sbPath.Replace("invoice_id","INV2-QCHR-QHSD-M2VU-AVXC")

rest.AddHeader("Authorization",sbAuth.getAsString())
rest.AddQueryParam("notify_merchant","true")

responseBody = rest.fullRequestFormUrlEncoded("POST",sbPath.getAsString())
if (rest.get_LastMethodSuccess() != true)
    print rest.lastErrorText() + "\n";
    exit
end

print "Response Status Code = " + rest.get_ResponseStatusCode().to_s() + "\n";

# Did we get a 202 accepted response?
if (rest.get_ResponseStatusCode() != 202)
    print responseBody + "\n";
    print "Failed." + "\n";
    exit
end

# If the 202 response is received, the response body would be empty...
print "Success." + "\n";