first commit

packages/nodes-base/nodes/Aws/AwsLambda.node.ts

@@ -0,0 +1,219 @@
+import type {
+	IExecuteFunctions,
+	IDataObject,
+	ILoadOptionsFunctions,
+	INodeExecutionData,
+	INodePropertyOptions,
+	INodeType,
+	INodeTypeDescription,
+	JsonObject,
+} from 'n8n-workflow';
+import { NodeConnectionTypes, NodeApiError } from 'n8n-workflow';
+
+import { awsApiRequestREST } from './GenericFunctions';
+import { awsNodeAuthOptions, awsNodeCredentials } from './utils';
+
+export class AwsLambda implements INodeType {
+	description: INodeTypeDescription = {
+		displayName: 'AWS Lambda',
+		name: 'awsLambda',
+		icon: 'file:lambda.svg',
+		group: ['output'],
+		version: 1,
+		subtitle: '={{$parameter["function"]}}',
+		description: 'Invoke functions on AWS Lambda',
+		defaults: {
+			name: 'AWS Lambda',
+		},
+		usableAsTool: true,
+		inputs: [NodeConnectionTypes.Main],
+		outputs: [NodeConnectionTypes.Main],
+		credentials: awsNodeCredentials,
+		properties: [
+			awsNodeAuthOptions,
+			{
+				displayName: 'Operation',
+				name: 'operation',
+				type: 'options',
+				noDataExpression: true,
+				options: [
+					{
+						name: 'Invoke',
+						value: 'invoke',
+						description: 'Invoke a function',
+						action: 'Invoke a function',
+					},
+				],
+				default: 'invoke',
+			},
+			{
+				displayName: 'Function Name or ID',
+				name: 'function',
+				type: 'options',
+				typeOptions: {
+					loadOptionsMethod: 'getFunctions',
+				},
+				displayOptions: {
+					show: {
+						operation: ['invoke'],
+					},
+				},
+				options: [],
+				default: '',
+				required: true,
+				description:
+					'The function you want to invoke. Choose from the list, or specify an ID using an <a href="https://docs.n8n.io/code/expressions/">expression</a>.',
+			},
+			{
+				displayName: 'Qualifier',
+				name: 'qualifier',
+				type: 'string',
+				displayOptions: {
+					show: {
+						operation: ['invoke'],
+					},
+				},
+				required: true,
+				default: '$LATEST',
+				description: 'Specify a version or alias to invoke a published version of the function',
+			},
+			{
+				displayName: 'Invocation Type',
+				name: 'invocationType',
+				type: 'options',
+				options: [
+					{
+						name: 'Wait for Results',
+						value: 'RequestResponse',
+						description: 'Invoke the function synchronously and wait for the response',
+					},
+					{
+						name: 'Continue Workflow',
+						value: 'Event',
+						description: 'Invoke the function and immediately continue the workflow',
+					},
+				],
+				displayOptions: {
+					show: {
+						operation: ['invoke'],
+					},
+				},
+				default: 'RequestResponse',
+				description: 'Specify if the workflow should wait for the function to return the results',
+			},
+			{
+				displayName: 'JSON Input',
+				name: 'payload',
+				type: 'string',
+				displayOptions: {
+					show: {
+						operation: ['invoke'],
+					},
+				},
+				default: '',
+				description: 'The JSON that you want to provide to your Lambda function as input',
+			},
+		],
+	};
+
+	methods = {
+		loadOptions: {
+			async getFunctions(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
+				const returnData: INodePropertyOptions[] = [];
+				const data = await awsApiRequestREST.call(this, 'lambda', 'GET', '/2015-03-31/functions/');
+
+				for (const func of data.Functions!) {
+					returnData.push({
+						name: func.FunctionName as string,
+						value: func.FunctionArn as string,
+					});
+				}
+
+				if (data.NextMarker) {
+					let marker: string = data.NextMarker;
+					while (true) {
+						const dataLoop = await awsApiRequestREST.call(
+							this,
+							'lambda',
+							'GET',
+							`/2015-03-31/functions/?MaxItems=50&Marker=${encodeURIComponent(marker)}`,
+						);
+
+						for (const func of dataLoop.Functions!) {
+							returnData.push({
+								name: func.FunctionName as string,
+								value: func.FunctionArn as string,
+							});
+						}
+
+						if (dataLoop.NextMarker) {
+							marker = dataLoop.NextMarker;
+						} else {
+							break;
+						}
+					}
+				}
+
+				return returnData;
+			},
+		},
+	};
+
+	async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
+		const items = this.getInputData();
+		const returnData: IDataObject[] = [];
+
+		for (let i = 0; i < items.length; i++) {
+			try {
+				const params = {
+					FunctionName: this.getNodeParameter('function', i) as string,
+					InvocationType: this.getNodeParameter('invocationType', i) as string,
+					Payload: this.getNodeParameter('payload', i) as string,
+					Qualifier: this.getNodeParameter('qualifier', i) as string,
+				};
+
+				const responseData = await awsApiRequestREST.call(
+					this,
+					'lambda',
+					'POST',
+					`/2015-03-31/functions/${params.FunctionName}/invocations?Qualifier=${params.Qualifier}`,
+					params.Payload,
+					{
+						'X-Amz-Invocation-Type': params.InvocationType,
+						'Content-Type': 'application/x-amz-json-1.0',
+					},
+				);
+
+				if (responseData?.errorMessage !== undefined) {
+					let _errorMessage = responseData.errorMessage;
+
+					if (responseData.stackTrace) {
+						_errorMessage += `\n\nStack trace:\n${responseData.stackTrace}`;
+					}
+
+					throw new NodeApiError(this.getNode(), responseData as JsonObject);
+				} else {
+					const executionData = this.helpers.constructExecutionMetaData(
+						this.helpers.returnJsonArray({
+							result: responseData,
+						}),
+						{ itemData: { item: i } },
+					);
+					returnData.push(...executionData);
+				}
+			} catch (error) {
+				if (this.continueOnFail()) {
+					const executionData = this.helpers.constructExecutionMetaData(
+						this.helpers.returnJsonArray({ error: (error as JsonObject).message }),
+						{ itemData: { item: i } },
+					);
+					returnData.push(...executionData);
+					continue;
+				}
+				throw error;
+			}
+		}
+
+		return [this.helpers.returnJsonArray(returnData)];
+	}
+}