✨ Add Checklist createItem functionality to Trello Node (#1444)

* Add Trello Checklist createItem functionality

* 💄 Small cosmetic change to #1433

Co-authored-by: Nicolas Antoniazzi <nicolas@codingame.com>

packages/nodes-base/nodes/Trello/ChecklistDescription.ts

@@ -18,6 +18,11 @@ export const checklistOperations = [
 			},
 		},
 		options: [
+			{
+				name: 'Create Checklist Item',
+				value: 'createCheckItem',
+				description: 'Create a checklist item',
+			},
 			{
 				name: 'Create',
 				value: 'create',
@@ -276,6 +281,79 @@ export const checklistFields = [
 		],
 	},
 
+	// ----------------------------------
+	//         checklist:createCheckItem
+	// ----------------------------------
+	{
+		displayName: 'Checklist ID',
+		name: 'checklistId',
+		type: 'string',
+		default: '',
+		required: true,
+		displayOptions: {
+			show: {
+				operation: [
+					'createCheckItem',
+				],
+				resource: [
+					'checklist',
+				],
+			},
+		},
+		description: 'The ID of the checklist to update.',
+	},
+	{
+		displayName: 'Name',
+		name: 'name',
+		type: 'string',
+		default: '',
+		required: true,
+		displayOptions: {
+			show: {
+				operation: [
+					'createCheckItem',
+				],
+				resource: [
+					'checklist',
+				],
+			},
+		},
+		description: 'The name of the new check item on the checklist.',
+	},
+	{
+		displayName: 'Additional Fields',
+		name: 'additionalFields',
+		type: 'collection',
+		placeholder: 'Add Field',
+		displayOptions: {
+			show: {
+				operation: [
+					'createCheckItem',
+				],
+				resource: [
+					'checklist',
+				],
+			},
+		},
+		default: {},
+		options: [
+			{
+				displayName: 'Checked',
+				name: 'checked',
+				type: 'boolean',
+				default: false,
+				description: 'Determines whether the check item is already checked when created.',
+			},
+			{
+				displayName: 'Position',
+				name: 'pos',
+				type: 'string',
+				default: '',
+				description: 'The position of the checklist on the card. One of: top, bottom, or a positive number.',
+			},
+		],
+	},
+
 	// ----------------------------------
 	//         checklist:deleteCheckItem
 	// ----------------------------------

packages/nodes-base/nodes/Trello/Trello.node.ts

@@ -565,6 +565,21 @@ export class Trello implements INodeType {
 					const additionalFields = this.getNodeParameter('additionalFields', i) as IDataObject;
 					Object.assign(qs, additionalFields);
 
+				} else if (operation === 'createCheckItem') {
+					// ----------------------------------
+					//         createCheckItem
+					// ----------------------------------
+
+					requestMethod = 'POST';
+
+					const checklistId = this.getNodeParameter('checklistId', i) as string;
+
+					endpoint = `checklists/${checklistId}/checkItems`;
+
+					const name = this.getNodeParameter('name', i) as string;
+					const additionalFields = this.getNodeParameter('additionalFields', i) as IDataObject;
+					Object.assign(qs, { name, ...additionalFields });
+
 				} else if (operation === 'deleteCheckItem') {
 					// ----------------------------------
 					//         deleteCheckItem