feat(MongoDB Node): Add projection to query options on Find (#9972)

Co-authored-by: Jonathan Bennetts <jonathan.bennetts@gmail.com>

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

@@ -196,6 +196,8 @@ export class MongoDb implements INodeType {
 					const options = this.getNodeParameter('options', i);
 					const limit = options.limit as number;
 					const skip = options.skip as number;
+					const projection =
+						options.projection && (JSON.parse(options.projection as string) as Document);
 					const sort = options.sort && (JSON.parse(options.sort as string) as Sort);
 
 					if (skip > 0) {
@@ -208,6 +210,10 @@ export class MongoDb implements INodeType {
 						query = query.sort(sort);
 					}
 
+					if (projection && projection instanceof Document) {
+						query = query.project(projection);
+					}
+
 					const queryResult = await query.toArray();
 
 					for (const entry of queryResult) {

packages/nodes-base/nodes/MongoDb/MongoDbProperties.ts

@@ -151,6 +151,18 @@ export const nodeProperties: INodeProperties[] = [
 				placeholder: '{ "field": -1 }',
 				description: 'A JSON that defines the sort order of the result set',
 			},
+			{
+				displayName: 'Projection (JSON Format)',
+				name: 'projection',
+				type: 'json',
+				typeOptions: {
+					rows: 4,
+				},
+				default: '{}',
+				placeholder: '{ "_id": 0, "field": 1 }',
+				description:
+					'A JSON that defines a selection of fields to retrieve or exclude from the result set',
+			},
 		],
 	},
 	{
@@ -248,7 +260,7 @@ export const nodeProperties: INodeProperties[] = [
 				name: 'dateFields',
 				type: 'string',
 				default: '',
-				description: 'Comma separeted list of fields that will be parsed as Mongo Date type',
+				description: 'Comma-separated list of fields that will be parsed as Mongo Date type',
 			},
 			{
 				displayName: 'Use Dot Notation',