Feature/paired item support (#3869)

* Add paired item helper and implement it in some nodes

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

@@ -324,6 +324,7 @@ export class GraphQL implements INodeType {
 		let requestOptions: OptionsWithUri & RequestPromiseOptions;
 
 		const returnItems: INodeExecutionData[] = [];
+		const responseData: IDataObject | IDataObject[] = [];
 		for (let itemIndex = 0; itemIndex < items.length; itemIndex++) {
 			try {
 				const requestMethod = this.getNodeParameter('requestMethod', itemIndex, 'POST') as string;
@@ -334,7 +335,6 @@ export class GraphQL implements INodeType {
 					'graphql',
 				) as string;
 				const responseFormat = this.getNodeParameter('responseFormat', 0) as string;
-
 				const { parameter }: { parameter?: Array<{ name: string; value: string }> } =
 					this.getNodeParameter('headerParametersUi', itemIndex, {}) as IDataObject;
 				const headerParameters = (parameter || []).reduce(
@@ -433,8 +433,7 @@ export class GraphQL implements INodeType {
 				}
 				if (responseFormat === 'string') {
 					const dataPropertyName = this.getNodeParameter('dataPropertyName', 0) as string;
-
-					returnItems.push({
+					responseData.push({
 						json: {
 							[dataPropertyName]: response,
 						},
@@ -458,12 +457,23 @@ export class GraphQL implements INodeType {
 							'Unexpected error';
 						throw new NodeApiError(this.getNode(), response.errors, { message });
 					}
-
-					returnItems.push({ json: response });
+					const executionData = this.helpers.constructExecutionMetaData(
+						this.helpers.returnJsonArray(responseData),
+						{ itemData: { item: itemIndex } },
+					);
+					returnItems.push(...executionData);
 				}
 			} catch (error) {
 				if (this.continueOnFail()) {
-					returnItems.push({ json: { error: (error as JsonObject).message } });
+					const errorData = this.helpers.returnJsonArray({
+						$error: error,
+						json: this.getInputData(itemIndex),
+						itemIndex,
+					});
+					const exectionErrorWithMetaData = this.helpers.constructExecutionMetaData(errorData, {
+						itemData: { item: itemIndex },
+					});
+					returnItems.push(...exectionErrorWithMetaData);
 					continue;
 				}
 				throw error;