✨ 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/UserDescription.ts

@@ -0,0 +1,176 @@
+import {
+	INodeProperties,
+} from 'n8n-workflow';
+
+export const userOperations = [
+	{
+		displayName: 'Operation',
+		name: 'operation',
+		type: 'options',
+		displayOptions: {
+			show: {
+				resource: [
+					'user',
+				],
+			},
+		},
+		options: [
+			{
+				name: 'Get All',
+				value: 'getAll',
+				description: 'Get all users',
+			}
+		],
+		default: 'getAll',
+		description: 'The operation to perform.',
+	},
+] as INodeProperties[];
+
+export const userFields = [
+/* -------------------------------------------------------------------------- */
+/*                                 user:getAll                                */
+/* -------------------------------------------------------------------------- */
+	{
+		displayName: 'Return All',
+		name: 'returnAll',
+		type: 'boolean',
+		displayOptions: {
+			show: {
+				resource: [
+					'user',
+				],
+				operation: [
+					'getAll',
+				],
+			},
+		},
+		default: false,
+		description: 'If all results should be returned or only up to a given limit.',
+	},
+	{
+		displayName: 'Limit',
+		name: 'limit',
+		type: 'number',
+		default: 1,
+		required: true,
+		typeOptions: {
+			minValue: 1,
+			maxValue: 200
+		},
+		displayOptions: {
+			show: {
+				resource: [
+					'user',
+				],
+				operation: [
+					'getAll',
+				],
+				returnAll: [
+					false
+				]
+			},
+		},
+		description: 'Number of subscription records to return per page.',
+	},
+	{
+		displayName: 'JSON Parameters',
+		name: 'jsonParameters',
+		type: 'boolean',
+		default: false,
+		description: '',
+		displayOptions: {
+			show: {
+				resource: [
+					'user',
+				],
+				operation: [
+					'getAll',
+				],
+			},
+		},
+	},
+	{
+		displayName: ' Additional Fields',
+		name: 'additionalFieldsJson',
+		type: 'json',
+		typeOptions: {
+			alwaysOpenEditWindow: true,
+		},
+		default: '',
+		displayOptions: {
+			show: {
+				resource: [
+					'user',
+				],
+				operation: [
+					'getAll',
+				],
+				jsonParameters: [
+					true,
+				],
+			},
+		},
+		description: `Attributes in JSON form.`,
+	},
+	{
+		displayName: 'Additional Fields',
+		name: 'additionalFields',
+		type: 'collection',
+		placeholder: 'Add Field',
+		displayOptions: {
+			show: {
+				resource: [
+					'user',
+				],
+				operation: [
+					'getAll',
+				],
+				jsonParameters: [
+					false
+				]
+			},
+		},
+		default: {},
+		options: [
+			{
+				displayName: 'Plan ID',
+				name: 'planId',
+				type: 'string',
+				default: '',
+				description: 'Filter: The subscription plan ID.',
+			},
+			{
+				displayName: 'Subscription ID',
+				name: 'subscriptionId',
+				type: 'string',
+				default: '',
+				description: 'A specific user subscription ID.',
+			},
+			{
+				displayName: 'State',
+				name: 'state',
+				type: 'options',
+				default: 'active',
+				description: 'Filter: The user subscription status. Returns all active, past_due, trialing and paused subscription plans if not specified.',
+				options: [
+					{
+						name: 'Active',
+						value: 'active'
+					},
+					{
+						name: 'Past Due',
+						value: 'past_due'
+					},
+					{
+						name: 'Paused',
+						value: 'paused'
+					},
+					{
+						name: 'Trialing',
+						value: 'trialing'
+					},
+				]
+			},
+		],
+	},
+] as INodeProperties[];