✨ Add Paddle Integration (#726)

* 🚧 Resource descriptions

* 🚧 Node logic / Genericfunctions setup

* 🚧 Tests / changes

* 🚧 Changes

- Added loadOptions to Payments / Coupon properties for easier item selection
- Added exemptions for how data is returned due to inconsistent data return object from API
- Other small fixes in main node

* 🚧 Simplified HTTPS error response

* 🚧 Added RAW Data options

* 🔥 Removed order resource

- Cannot fetch order without a checkout ID, which can only be obtained via a custom implementation which involves a callback function when a user goes through their checkout process.

* ⚡ Improvement to Paddle-Node

* ⚡ Improvements

* ⚡ Added all currencies, discount grouped properties to coupon update

Co-authored-by: ricardo <ricardoespinoza105@gmail.com>

packages/nodes-base/nodes/Paddle/PlanDescription.ts

@@ -0,0 +1,98 @@
+import {
+	INodeProperties,
+} from 'n8n-workflow';
+
+export const planOperations = [
+	{
+		displayName: 'Operation',
+		name: 'operation',
+		type: 'options',
+		displayOptions: {
+			show: {
+				resource: [
+					'plan',
+				],
+			},
+		},
+		options: [
+			{
+				name: 'Get',
+				value: 'get',
+				description: 'Get a plan.',
+			},
+			{
+				name: 'Get All',
+				value: 'getAll',
+				description: 'Get all plans.',
+			}
+		],
+		default: 'get',
+		description: 'The operation to perform.',
+	},
+] as INodeProperties[];
+
+export const planFields = [
+
+/* -------------------------------------------------------------------------- */
+/*                                 plan:get                                   */
+/* -------------------------------------------------------------------------- */
+	{
+		displayName: 'Plan ID',
+		name: 'planId',
+		type: 'string',
+		default: '',
+		required: true,
+		displayOptions: {
+			show: {
+				resource: [
+					'plan',
+				],
+				operation: [
+					'get',
+				],
+			},
+		},
+		description: 'Filter: The subscription plan ID.',
+	},
+	{
+		displayName: 'Return All',
+		name: 'returnAll',
+		type: 'boolean',
+		displayOptions: {
+			show: {
+				operation: [
+					'getAll',
+				],
+				resource: [
+					'plan',
+				],
+			},
+		},
+		default: false,
+		description: 'If all results should be returned or only up to a given limit.',
+	},
+	{
+		displayName: 'Limit',
+		name: 'limit',
+		type: 'number',
+		displayOptions: {
+			show: {
+				operation: [
+					'getAll',
+				],
+				resource: [
+					'plan',
+				],
+				returnAll: [
+					false,
+				],
+			},
+		},
+		typeOptions: {
+			minValue: 1,
+			maxValue: 500,
+		},
+		default: 100,
+		description: 'How many results to return.',
+	},
+] as INodeProperties[];