mirror of
https://github.com/n8n-io/n8n.git
synced 2024-11-14 00:24:07 -08:00
388 lines
9.8 KiB
TypeScript
388 lines
9.8 KiB
TypeScript
import type {
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IDataObject,
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IExecuteFunctions,
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ILoadOptionsFunctions,
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INodeExecutionData,
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INodeParameters,
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INodePropertyOptions,
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INodeType,
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INodeTypeDescription,
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JsonObject,
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} from 'n8n-workflow';
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import { NodeApiError } from 'n8n-workflow';
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import { URL } from 'url';
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import { awsApiRequestSOAP } from '../GenericFunctions';
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import { pascalCase } from 'change-case';
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export class AwsSqs implements INodeType {
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description: INodeTypeDescription = {
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displayName: 'AWS SQS',
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name: 'awsSqs',
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icon: 'file:sqs.svg',
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group: ['output'],
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version: 1,
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subtitle: '={{$parameter["operation"]}}',
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description: 'Sends messages to AWS SQS',
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defaults: {
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name: 'AWS SQS',
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},
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inputs: ['main'],
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outputs: ['main'],
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credentials: [
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{
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name: 'aws',
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required: true,
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},
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],
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properties: [
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{
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displayName: 'Operation',
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name: 'operation',
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type: 'options',
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noDataExpression: true,
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options: [
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{
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name: 'Send Message',
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value: 'sendMessage',
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description: 'Send a message to a queue',
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action: 'Send a message to a queue',
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},
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],
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default: 'sendMessage',
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},
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{
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displayName: 'Queue Name or ID',
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name: 'queue',
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type: 'options',
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typeOptions: {
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loadOptionsMethod: 'getQueues',
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},
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displayOptions: {
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show: {
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operation: ['sendMessage'],
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},
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},
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options: [],
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default: '',
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required: true,
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description:
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'Queue to send a message to. Choose from the list, or specify an ID using an <a href="https://docs.n8n.io/code-examples/expressions/">expression</a>.',
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},
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{
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displayName: 'Queue Type',
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name: 'queueType',
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type: 'options',
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options: [
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{
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name: 'FIFO',
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value: 'fifo',
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description: 'FIFO SQS queue',
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},
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{
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name: 'Standard',
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value: 'standard',
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description: 'Standard SQS queue',
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},
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],
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default: 'standard',
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},
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{
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displayName: 'Send Input Data',
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name: 'sendInputData',
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type: 'boolean',
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default: true,
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description: 'Whether to send the data the node receives as JSON to SQS',
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},
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{
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displayName: 'Message',
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name: 'message',
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type: 'string',
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displayOptions: {
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show: {
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operation: ['sendMessage'],
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sendInputData: [false],
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},
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},
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required: true,
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default: '',
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description: 'Message to send to the queue',
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},
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{
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displayName: 'Message Group ID',
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name: 'messageGroupId',
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type: 'string',
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default: '',
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description:
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'Tag that specifies that a message belongs to a specific message group. Applies only to FIFO (first-in-first-out) queues.',
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displayOptions: {
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show: {
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queueType: ['fifo'],
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},
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},
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required: true,
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},
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{
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displayName: 'Options',
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name: 'options',
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type: 'collection',
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displayOptions: {
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show: {
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operation: ['sendMessage'],
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},
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},
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default: {},
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placeholder: 'Add Option',
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options: [
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{
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displayName: 'Delay Seconds',
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name: 'delaySeconds',
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type: 'number',
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displayOptions: {
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show: {
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'/queueType': ['standard'],
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},
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},
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description: 'How long, in seconds, to delay a message for',
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default: 0,
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typeOptions: {
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minValue: 0,
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maxValue: 900,
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},
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},
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{
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displayName: 'Message Attributes',
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name: 'messageAttributes',
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placeholder: 'Add Attribute',
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type: 'fixedCollection',
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typeOptions: {
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multipleValues: true,
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},
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description: 'Attributes to set',
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default: {},
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options: [
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{
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name: 'binary',
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displayName: 'Binary',
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values: [
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{
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displayName: 'Name',
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name: 'name',
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type: 'string',
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default: '',
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description: 'Name of the attribute',
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},
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{
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displayName: 'Property Name',
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name: 'dataPropertyName',
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type: 'string',
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default: 'data',
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description:
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'Name of the binary property which contains the data for the message attribute',
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},
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],
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},
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{
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name: 'number',
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displayName: 'Number',
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values: [
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{
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displayName: 'Name',
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name: 'name',
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type: 'string',
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default: '',
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description: 'Name of the attribute',
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},
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{
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displayName: 'Value',
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name: 'value',
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type: 'number',
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default: 0,
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description: 'Number value of the attribute',
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},
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],
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},
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{
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name: 'string',
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displayName: 'String',
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values: [
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{
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displayName: 'Name',
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name: 'name',
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type: 'string',
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default: '',
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description: 'Name of the attribute',
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},
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{
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displayName: 'Value',
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name: 'value',
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type: 'string',
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default: '',
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description: 'String value of attribute',
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},
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],
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},
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],
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},
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{
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displayName: 'Message Deduplication ID',
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name: 'messageDeduplicationId',
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type: 'string',
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default: '',
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description:
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'Token used for deduplication of sent messages. Applies only to FIFO (first-in-first-out) queues.',
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displayOptions: {
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show: {
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'/queueType': ['fifo'],
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},
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},
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},
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],
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},
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],
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};
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methods = {
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loadOptions: {
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// Get all the available queues to display them to user so that it can be selected easily
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async getQueues(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
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const params = ['Version=2012-11-05', 'Action=ListQueues'];
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let data;
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try {
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// loads first 1000 queues from SQS
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data = await awsApiRequestSOAP.call(this, 'sqs', 'GET', `?${params.join('&')}`);
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} catch (error) {
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throw new NodeApiError(this.getNode(), error as JsonObject);
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}
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let queues = data.ListQueuesResponse.ListQueuesResult.QueueUrl;
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if (!queues) {
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return [];
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}
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if (!Array.isArray(queues)) {
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// If user has only a single queue no array get returned so we make
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// one manually to be able to process everything identically
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queues = [queues];
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}
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return queues.map((queueUrl: string) => {
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const urlParts = queueUrl.split('/');
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const name = urlParts[urlParts.length - 1];
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return {
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name,
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value: queueUrl,
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};
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});
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},
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},
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};
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async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
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const items = this.getInputData();
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const returnData: IDataObject[] = [];
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const operation = this.getNodeParameter('operation', 0);
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for (let i = 0; i < items.length; i++) {
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try {
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const queueUrl = this.getNodeParameter('queue', i) as string;
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const queuePath = new URL(queueUrl).pathname;
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const params = ['Version=2012-11-05', `Action=${pascalCase(operation)}`];
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const options = this.getNodeParameter('options', i, {});
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const sendInputData = this.getNodeParameter('sendInputData', i) as boolean;
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const message = sendInputData
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? JSON.stringify(items[i].json)
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: (this.getNodeParameter('message', i) as string);
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params.push(`MessageBody=${message}`);
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if (options.delaySeconds) {
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params.push(`DelaySeconds=${options.delaySeconds}`);
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}
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const queueType = this.getNodeParameter('queueType', i, {}) as string;
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if (queueType === 'fifo') {
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const messageDeduplicationId = this.getNodeParameter(
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'options.messageDeduplicationId',
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i,
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'',
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) as string;
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if (messageDeduplicationId) {
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params.push(`MessageDeduplicationId=${messageDeduplicationId}`);
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}
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const messageGroupId = this.getNodeParameter('messageGroupId', i) as string;
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if (messageGroupId) {
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params.push(`MessageGroupId=${messageGroupId}`);
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}
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}
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let attributeCount = 0;
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// Add string values
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(
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this.getNodeParameter('options.messageAttributes.string', i, []) as INodeParameters[]
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).forEach((attribute) => {
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attributeCount++;
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params.push(`MessageAttribute.${attributeCount}.Name=${attribute.name}`);
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params.push(`MessageAttribute.${attributeCount}.Value.StringValue=${attribute.value}`);
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params.push(`MessageAttribute.${attributeCount}.Value.DataType=String`);
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});
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// Add binary values
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(
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this.getNodeParameter('options.messageAttributes.binary', i, []) as INodeParameters[]
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).forEach((attribute) => {
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attributeCount++;
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const dataPropertyName = attribute.dataPropertyName as string;
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const binaryData = this.helpers.assertBinaryData(i, dataPropertyName);
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params.push(`MessageAttribute.${attributeCount}.Name=${attribute.name}`);
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params.push(`MessageAttribute.${attributeCount}.Value.BinaryValue=${binaryData.data}`);
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params.push(`MessageAttribute.${attributeCount}.Value.DataType=Binary`);
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});
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// Add number values
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(
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this.getNodeParameter('options.messageAttributes.number', i, []) as INodeParameters[]
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).forEach((attribute) => {
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attributeCount++;
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params.push(`MessageAttribute.${attributeCount}.Name=${attribute.name}`);
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params.push(`MessageAttribute.${attributeCount}.Value.StringValue=${attribute.value}`);
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params.push(`MessageAttribute.${attributeCount}.Value.DataType=Number`);
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});
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let responseData;
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try {
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responseData = await awsApiRequestSOAP.call(
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this,
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'sqs',
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'GET',
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`${queuePath}?${params.join('&')}`,
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);
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} catch (error) {
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throw new NodeApiError(this.getNode(), error as JsonObject);
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}
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const result = responseData.SendMessageResponse.SendMessageResult;
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returnData.push(result as IDataObject);
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} catch (error) {
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if (this.continueOnFail()) {
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returnData.push({ error: error.description });
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continue;
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}
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throw error;
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}
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}
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return [this.helpers.returnJsonArray(returnData)];
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}
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}
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