✨ Add Marketstack node (#2033)

* Add Marketstack Node

* Add optional HTTPS support

* ⚡ Refactor Marketstack node

* 🔥 Remove logging

* ⚡ Small improvement

* 🐛 Fix issue validating error condition

Co-authored-by: Ed Linklater <github@ed.geek.nz>
Co-authored-by: ricardo <ricardoespinoza105@gmail.com>

packages/nodes-base/nodes/Marketstack/descriptions/ExchangeDescription.ts

@@ -0,0 +1,46 @@
+import {
+	INodeProperties,
+} from 'n8n-workflow';
+
+export const exchangeOperations: INodeProperties[] = [
+	{
+		displayName: 'Operation',
+		name: 'operation',
+		type: 'options',
+		options: [
+			{
+				name: 'Get',
+				value: 'get',
+			},
+		],
+		default: 'get',
+		displayOptions: {
+			show: {
+				resource: [
+					'exchange',
+				],
+			},
+		},
+	},
+];
+
+export const exchangeFields: INodeProperties[] = [
+	{
+		displayName: 'Exchange',
+		name: 'exchange',
+		type: 'string',
+		required: true,
+		displayOptions: {
+			show: {
+				resource: [
+					'exchange',
+				],
+				operation: [
+					'get',
+				],
+			},
+		},
+		default: '',
+		description: 'Stock exchange to retrieve, specified by <a target="_blank" href="https://en.wikipedia.org/wiki/Market_Identifier_Code">Market Identifier Code</a>, e.g. <code>XNAS</code>',
+	},
+];