import { IExecuteFunctions } from 'n8n-core'; import { IDataObject, ILoadOptionsFunctions, INodeExecutionData, INodePropertyOptions, INodeType, INodeTypeDescription, } from 'n8n-workflow'; import { awsApiRequestSOAP } from './GenericFunctions'; export class AwsSns implements INodeType { description: INodeTypeDescription = { displayName: 'AWS SNS', name: 'awsSns', icon: 'file:sns.png', group: ['output'], version: 1, subtitle: '={{$parameter["topic"]}}', description: 'Sends data to AWS SNS', defaults: { name: 'AWS SNS', color: '#FF9900', }, inputs: ['main'], outputs: ['main'], credentials: [ { name: 'aws', required: true, }, ], properties: [ { displayName: 'Operation', name: 'operation', type: 'options', options: [ { name: 'Publish', value: 'publish', description: 'Publish a message to a topic', }, ], default: 'publish', description: 'The operation to perform.', }, { displayName: 'Topic', name: 'topic', type: 'options', typeOptions: { loadOptionsMethod: 'getTopics', }, displayOptions: { show: { operation: [ 'publish', ], }, }, options: [], default: '', required: true, description: 'The topic you want to publish to', }, { displayName: 'Subject', name: 'subject', type: 'string', displayOptions: { show: { operation: [ 'publish', ], }, }, default: '', required: true, description: 'Subject when the message is delivered to email endpoints', }, { displayName: 'Message', name: 'message', type: 'string', displayOptions: { show: { operation: [ 'publish', ], }, }, 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 { const returnData: INodePropertyOptions[] = []; let data; try { data = await awsApiRequestSOAP.call(this, 'sns', 'GET', '/?Action=ListTopics'); } catch (err) { throw new Error(`AWS Error: ${err}`); } let topics = data.ListTopicsResponse.ListTopicsResult.Topics.member; if (!Array.isArray(topics)) { // If user has only a single topic no array get returned so we make // one manually to be able to process everything identically topics = [topics]; } for (const topic of topics) { const topicArn = topic.TopicArn as string; const topicName = topicArn.split(':')[5]; returnData.push({ name: topicName, value: topicArn, }); } return returnData; }, }, }; async execute(this: IExecuteFunctions): Promise { const items = this.getInputData(); const returnData: IDataObject[] = []; for (let i = 0; i < items.length; i++) { const params = [ 'TopicArn=' + this.getNodeParameter('topic', i) as string, 'Subject=' + this.getNodeParameter('subject', i) as string, 'Message=' + this.getNodeParameter('message', i) as string, ]; let responseData; try { responseData = await awsApiRequestSOAP.call(this, 'sns', 'GET', '/?Action=Publish&' + params.join('&')); } catch (err) { throw new Error(`AWS Error: ${err}`); } returnData.push({MessageId: responseData.PublishResponse.PublishResult.MessageId} as IDataObject); } return [this.helpers.returnJsonArray(returnData)]; } }