Implement AWS SNS node

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

@@ -0,0 +1,152 @@
+import {
+	SNS,
+	config,
+	AWSError,
+} from 'aws-sdk';
+import { IExecuteFunctions } from 'n8n-core';
+import {
+	INodeTypeDescription,
+	INodeExecutionData,
+	INodeType,
+	INodePropertyOptions,
+	ILoadOptionsFunctions,
+	IDataObject
+} from 'n8n-workflow';
+
+export class Sns implements INodeType {
+	description: INodeTypeDescription = {
+		displayName: 'Amazon SNS',
+		name: 'amazonSns',
+		icon: 'file:sns.png',
+		group: ['output'],
+		version: 1,
+		subtitle: '={{$parameter["topic"]}}',
+		description: 'Sends data to Amazon SNS',
+		defaults: {
+			name: 'Amazon SNS',
+			color: '#BB2244',
+		},
+		inputs: ['main'],
+		outputs: ['main'],
+		credentials: [
+			{
+				name: 'aws',
+				required: true,
+			}
+		],
+		properties: [
+			{
+				displayName: 'Topic',
+				name: 'topic',
+				type: 'options',
+				typeOptions: {
+					loadOptionsMethod: 'getTopics',
+				},
+				options: [],
+				default: '',
+				required: true,
+				description: 'The topic you want to publish to',
+			},
+			{
+				displayName: 'Subject',
+				name: 'subject',
+				type: 'string',
+				default: '',
+				description: 'Subject when the message is delivered to email endpoints',
+			},
+			{
+				displayName: 'Message',
+				name: 'message',
+				type: 'string',
+				required: true,
+				typeOptions: {
+					alwaysOpenEditWindow: true,
+				},
+				default: '',
+				description: 'The message you want to send',
+			},
+		],
+	};
+
+	methods = {
+		loadOptions: {
+			// Get all the available topics to display them to user so that he can
+			// select them easily
+			async getTopics(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
+				const credentials = this.getCredentials('aws');
+
+				if (credentials === undefined) {
+					throw new Error('No credentials got returned!');
+				}
+
+				config.update({
+					region: `${credentials.region}`,
+					accessKeyId: `${credentials.accessKeyId}`,
+					secretAccessKey: `${credentials.secretAccessKey}`,
+				});
+
+				const returnData: INodePropertyOptions[] = [];
+
+				let sns = new SNS();
+				try {
+					var data = await sns.listTopics({}).promise();
+				} catch (err) {
+					throw new Error(`AWS Error: ${err}`);
+				}
+
+				for (let topic of data.Topics!) {
+					let topicArn = topic.TopicArn!;
+					let topicName = topicArn.split(':')[5];
+					returnData.push({
+						name: topicName,
+						value: topicArn,
+					});
+				}
+				return returnData;
+			}
+		},
+	};
+
+
+	async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
+		const items = this.getInputData();
+		const returnData: IDataObject[] = [];
+
+		const credentials = this.getCredentials('aws');
+		if (credentials === undefined) {
+			throw new Error('No credentials got returned!');
+		}
+
+		let topicArn: string;
+		let subject: string;
+		let message: string;
+
+		config.update({
+			region: `${credentials.region}`,
+			accessKeyId: `${credentials.accessKeyId}`,
+			secretAccessKey: `${credentials.secretAccessKey}`,
+		});
+		let sns = new SNS();
+
+		for (let i = 0; i < items.length; i++) {
+			topicArn = this.getNodeParameter('topic', i) as string;
+			subject = this.getNodeParameter('subject', i) as string;
+			message = this.getNodeParameter('message', i) as string;
+
+			let params = {
+				Message: message,
+				Subject: subject,
+				TopicArn: topicArn,
+			};
+
+			try {
+				var responseData = await sns.publish(params).promise();
+			} catch (err) {
+				throw new Error(`AWS Error: ${err}`);
+			}
+			returnData.push(responseData as IDataObject);
+		}
+
+		return [this.helpers.returnJsonArray(returnData)];
+	}
+}

packages/nodes-base/package.json

@@ -56,6 +56,7 @@
             "dist/nodes/Airtable/Airtable.node.js",
             "dist/nodes/Asana/Asana.node.js",
             "dist/nodes/Asana/AsanaTrigger.node.js",
+            "dist/nodes/Aws/Sns.node.js",
             "dist/nodes/Chargebee/Chargebee.node.js",
             "dist/nodes/Chargebee/ChargebeeTrigger.node.js",
             "dist/nodes/Cron.node.js",
@@ -124,6 +125,7 @@
         "typescript": "~3.5.2"
     },
     "dependencies": {
+        "aws-sdk": "^2.543.0",
         "basic-auth": "^2.0.1",
         "cron": "^1.6.0",
         "glob-promise": "^3.4.0",