feat(AWS IAM Node): Add new AWS IAM Node (#11963)

Co-authored-by: Adina Totorean <adinatotorean99@gmail.com>

packages/nodes-base/nodes/Aws/IAM/helpers/errorHandler.ts

@@ -0,0 +1,86 @@
+import type {
+	JsonObject,
+	IDataObject,
+	IExecuteSingleFunctions,
+	IN8nHttpFullResponse,
+	INodeExecutionData,
+} from 'n8n-workflow';
+import { NodeApiError } from 'n8n-workflow';
+
+import { ERROR_DESCRIPTIONS } from './constants';
+import type { AwsError, ErrorMessage } from './types';
+
+function mapErrorToResponse(errorCode: string, errorMessage: string): ErrorMessage | undefined {
+	const isUser = /user/i.test(errorMessage);
+	const isGroup = /group/i.test(errorMessage);
+
+	switch (errorCode) {
+		case 'EntityAlreadyExists':
+			if (isUser) {
+				return {
+					message: errorMessage,
+					description: ERROR_DESCRIPTIONS.EntityAlreadyExists.User,
+				};
+			}
+			if (isGroup) {
+				return {
+					message: errorMessage,
+					description: ERROR_DESCRIPTIONS.EntityAlreadyExists.Group,
+				};
+			}
+			break;
+
+		case 'NoSuchEntity':
+			if (isUser) {
+				return {
+					message: errorMessage,
+					description: ERROR_DESCRIPTIONS.NoSuchEntity.User,
+				};
+			}
+			if (isGroup) {
+				return {
+					message: errorMessage,
+					description: ERROR_DESCRIPTIONS.NoSuchEntity.Group,
+				};
+			}
+			break;
+
+		case 'DeleteConflict':
+			return {
+				message: errorMessage,
+				description: ERROR_DESCRIPTIONS.DeleteConflict.Default,
+			};
+	}
+
+	return undefined;
+}
+
+export async function handleError(
+	this: IExecuteSingleFunctions,
+	data: INodeExecutionData[],
+	response: IN8nHttpFullResponse,
+): Promise<INodeExecutionData[]> {
+	const statusCode = String(response.statusCode);
+
+	if (!statusCode.startsWith('4') && !statusCode.startsWith('5')) {
+		return data;
+	}
+
+	const responseBody = response.body as IDataObject;
+	const error = responseBody.Error as AwsError;
+
+	if (!error) {
+		throw new NodeApiError(this.getNode(), response as unknown as JsonObject);
+	}
+
+	const specificError = mapErrorToResponse(error.Code, error.Message);
+
+	if (specificError) {
+		throw new NodeApiError(this.getNode(), response as unknown as JsonObject, specificError);
+	} else {
+		throw new NodeApiError(this.getNode(), response as unknown as JsonObject, {
+			message: error.Code,
+			description: error.Message,
+		});
+	}
+}