(Ruby) PayPal - Refund Captured Payment

Refunds a captured payment, by ID. Include an amount object in the JSON request body.

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

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..
# ----------------------------------------------------------------------------------------------

# To refund a particular amount, build JSON such as this:
json = Chilkat::CkJsonObject.new()
json.put_EmitCompact(false)
json.UpdateString("amount.total","4.54")
json.UpdateString("amount.currency","USD")
json.UpdateString("description","Athletic socks")
json.UpdateString("reason","Refunding because color was incorrect")
print json.emit() + "\n";

# The JSON:

# 	{ 
# 	  "amount": { 
# 	    "total": "4.54",
# 	    "currency": "USD"
# 	  },
# 	  "description": "Athletic socks",
# 	  "reason": "Refunding because color was incorrect"
# 	}
# 
rest.AddHeader("Authorization",sbAuth.getAsString())
rest.AddHeader("Content-Type","application/json")

# The capture ID is added to the path.
# To list your captures: Find Captures. 
sbPath = Chilkat::CkStringBuilder.new()
sbPath.Append("/v1/payments/capture/capture_id/refund")
numReplaced = sbPath.Replace("capture_id","1LY5310469661362J")

# Send the POST request containign the JSON in the request body, and get the JSON response.
sbJsonRequest = Chilkat::CkStringBuilder.new()
json.put_EmitCompact(true)
json.EmitSb(sbJsonRequest)
sbJsonResponse = Chilkat::CkStringBuilder.new()

success = rest.FullRequestSb("POST",sbPath.getAsString(),sbJsonRequest,sbJsonResponse)
if (success != true)
    print rest.lastErrorText() + "\n";
    exit
end

json.put_EmitCompact(false)
json.LoadSb(sbJsonResponse)

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

# Did we get a 201 success response?
if (rest.get_ResponseStatusCode() != 201)
    print json.emit() + "\n";
    print "Failed." + "\n";
    exit
end

print json.emit() + "\n";
print "Success." + "\n";

# A successful JSON response:
# The "id" is the refund_id.

# 	{ 
# 	  "id": "77B77607RR7243500",
# 	  "create_time": "2016-11-27T01:38:25Z",
# 	  "update_time": "2016-11-27T01:38:25Z",
# 	  "state": "completed",
# 	  "amount": { 
# 	    "total": "4.54",
# 	    "currency": "USD"
# 	  },
# 	  "capture_id": "1LY5310469661362J",
# 	  "parent_payment": "PAY-2CY489250W145633HLA3DK3Y",
# 	  "links": [
# 	    { 
# 	      "href": "https://api.sandbox.paypal.com/v1/payments/refund/77B77607RR7243500",
# 	      "rel": "self",
# 	      "method": "GET"
# 	    },
# 	    { 
# 	      "href": "https://api.sandbox.paypal.com/v1/payments/payment/PAY-2CY489250W145633HLA3DK3Y",
# 	      "rel": "parent_payment",
# 	      "method": "GET"
# 	    },
# 	    { 
# 	      "href": "https://api.sandbox.paypal.com/v1/payments/capture/1LY5310469661362J",
# 	      "rel": "capture",
# 	      "method": "GET"
# 	    }
# 	  ]
# 	}