mirror of
https://github.com/n8n-io/n8n.git
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637 lines
16 KiB
TypeScript
637 lines
16 KiB
TypeScript
import type {
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IExecuteFunctions,
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INodeExecutionData,
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INodeType,
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INodeTypeDescription,
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} from 'n8n-workflow';
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import set from 'lodash/set';
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import {
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setupRedisClient,
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redisConnectionTest,
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convertInfoToObject,
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getValue,
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setValue,
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} from './utils';
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export class Redis implements INodeType {
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description: INodeTypeDescription = {
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displayName: 'Redis',
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name: 'redis',
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icon: 'file:redis.svg',
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group: ['input'],
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version: 1,
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description: 'Get, send and update data in Redis',
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defaults: {
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name: 'Redis',
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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: 'redis',
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required: true,
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testedBy: 'redisConnectionTest',
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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: 'Delete',
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value: 'delete',
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description: 'Delete a key from Redis',
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action: 'Delete a key from Redis',
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},
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{
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name: 'Get',
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value: 'get',
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description: 'Get the value of a key from Redis',
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action: 'Get the value of a key from Redis',
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},
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{
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name: 'Increment',
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value: 'incr',
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description: 'Atomically increments a key by 1. Creates the key if it does not exist.',
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action: 'Atomically increment a key by 1. Creates the key if it does not exist.',
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},
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{
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name: 'Info',
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value: 'info',
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description: 'Returns generic information about the Redis instance',
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action: 'Return generic information about the Redis instance',
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},
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{
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name: 'Keys',
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value: 'keys',
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description: 'Returns all the keys matching a pattern',
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action: 'Return all keys matching a pattern',
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},
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{
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name: 'Pop',
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value: 'pop',
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description: 'Pop data from a redis list',
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action: 'Pop data from a redis list',
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},
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{
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name: 'Publish',
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value: 'publish',
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description: 'Publish message to redis channel',
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action: 'Publish message to redis channel',
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},
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{
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name: 'Push',
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value: 'push',
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description: 'Push data to a redis list',
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action: 'Push data to a redis list',
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},
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{
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name: 'Set',
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value: 'set',
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description: 'Set the value of a key in redis',
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action: 'Set the value of a key in redis',
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},
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],
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default: 'info',
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},
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// ----------------------------------
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// delete
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// ----------------------------------
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{
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displayName: 'Key',
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name: 'key',
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type: 'string',
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displayOptions: {
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show: {
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operation: ['delete'],
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},
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},
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default: '',
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required: true,
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description: 'Name of the key to delete from Redis',
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},
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// ----------------------------------
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// get
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// ----------------------------------
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{
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displayName: 'Name',
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name: 'propertyName',
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type: 'string',
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displayOptions: {
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show: {
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operation: ['get'],
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},
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},
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default: 'propertyName',
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required: true,
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description:
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'Name of the property to write received data to. Supports dot-notation. Example: "data.person[0].name".',
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},
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{
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displayName: 'Key',
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name: 'key',
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type: 'string',
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displayOptions: {
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show: {
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operation: ['get'],
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},
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},
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default: '',
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required: true,
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description: 'Name of the key to get from Redis',
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},
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{
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displayName: 'Key Type',
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name: 'keyType',
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type: 'options',
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displayOptions: {
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show: {
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operation: ['get'],
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},
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},
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options: [
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{
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name: 'Automatic',
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value: 'automatic',
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description: 'Requests the type before requesting the data (slower)',
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},
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{
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name: 'Hash',
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value: 'hash',
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description: "Data in key is of type 'hash'",
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},
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{
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name: 'List',
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value: 'list',
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description: "Data in key is of type 'lists'",
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},
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{
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name: 'Sets',
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value: 'sets',
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description: "Data in key is of type 'sets'",
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},
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{
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name: 'String',
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value: 'string',
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description: "Data in key is of type 'string'",
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},
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],
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default: 'automatic',
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description: 'The type of the key to get',
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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: ['get'],
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},
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},
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placeholder: 'Add Option',
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default: {},
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options: [
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{
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displayName: 'Dot Notation',
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name: 'dotNotation',
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type: 'boolean',
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default: true,
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// eslint-disable-next-line n8n-nodes-base/node-param-description-boolean-without-whether
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description:
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'<p>By default, dot-notation is used in property names. This means that "a.b" will set the property "b" underneath "a" so { "a": { "b": value} }.<p></p>If that is not intended this can be deactivated, it will then set { "a.b": value } instead.</p>.',
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},
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],
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},
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// ----------------------------------
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// incr
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// ----------------------------------
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{
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displayName: 'Key',
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name: 'key',
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type: 'string',
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displayOptions: {
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show: {
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operation: ['incr'],
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},
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},
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default: '',
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required: true,
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description: 'Name of the key to increment',
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},
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{
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displayName: 'Expire',
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name: 'expire',
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type: 'boolean',
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displayOptions: {
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show: {
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operation: ['incr'],
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},
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},
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default: false,
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description: 'Whether to set a timeout on key',
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},
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{
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displayName: 'TTL',
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name: 'ttl',
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type: 'number',
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typeOptions: {
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minValue: 1,
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},
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displayOptions: {
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show: {
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operation: ['incr'],
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expire: [true],
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},
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},
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default: 60,
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description: 'Number of seconds before key expiration',
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},
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// ----------------------------------
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// keys
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// ----------------------------------
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{
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displayName: 'Key Pattern',
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name: 'keyPattern',
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type: 'string',
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displayOptions: {
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show: {
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operation: ['keys'],
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},
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},
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default: '',
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required: true,
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description: 'The key pattern for the keys to return',
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},
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{
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displayName: 'Get Values',
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name: 'getValues',
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type: 'boolean',
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displayOptions: {
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show: {
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operation: ['keys'],
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},
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},
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default: true,
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description: 'Whether to get the value of matching keys',
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},
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// ----------------------------------
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// set
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// ----------------------------------
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{
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displayName: 'Key',
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name: 'key',
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type: 'string',
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displayOptions: {
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show: {
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operation: ['set'],
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},
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},
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default: '',
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required: true,
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description: 'Name of the key to set in Redis',
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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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displayOptions: {
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show: {
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operation: ['set'],
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},
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},
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default: '',
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description: 'The value to write in Redis',
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},
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{
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displayName: 'Key Type',
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name: 'keyType',
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type: 'options',
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displayOptions: {
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show: {
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operation: ['set'],
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},
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},
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options: [
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{
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name: 'Automatic',
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value: 'automatic',
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description: 'Tries to figure out the type automatically depending on the data',
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},
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{
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name: 'Hash',
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value: 'hash',
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description: "Data in key is of type 'hash'",
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},
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{
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name: 'List',
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value: 'list',
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description: "Data in key is of type 'lists'",
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},
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{
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name: 'Sets',
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value: 'sets',
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description: "Data in key is of type 'sets'",
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},
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{
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name: 'String',
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value: 'string',
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description: "Data in key is of type 'string'",
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},
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],
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default: 'automatic',
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description: 'The type of the key to set',
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},
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{
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displayName: 'Value Is JSON',
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name: 'valueIsJSON',
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type: 'boolean',
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displayOptions: {
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show: {
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keyType: ['hash'],
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},
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},
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default: true,
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description: 'Whether the value is JSON or key value pairs',
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},
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{
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displayName: 'Expire',
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name: 'expire',
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type: 'boolean',
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displayOptions: {
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show: {
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operation: ['set'],
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},
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},
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default: false,
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description: 'Whether to set a timeout on key',
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},
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{
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displayName: 'TTL',
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name: 'ttl',
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type: 'number',
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typeOptions: {
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minValue: 1,
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},
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displayOptions: {
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show: {
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operation: ['set'],
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expire: [true],
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},
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},
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default: 60,
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description: 'Number of seconds before key expiration',
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},
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// ----------------------------------
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// publish
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// ----------------------------------
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{
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displayName: 'Channel',
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name: 'channel',
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type: 'string',
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displayOptions: {
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show: {
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operation: ['publish'],
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},
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},
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default: '',
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required: true,
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description: 'Channel name',
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},
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{
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displayName: 'Data',
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name: 'messageData',
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type: 'string',
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displayOptions: {
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show: {
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operation: ['publish'],
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},
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},
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default: '',
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required: true,
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description: 'Data to publish',
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},
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// ----------------------------------
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// push/pop
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// ----------------------------------
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{
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displayName: 'List',
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name: 'list',
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type: 'string',
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displayOptions: {
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show: {
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operation: ['push', 'pop'],
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},
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},
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default: '',
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required: true,
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description: 'Name of the list in Redis',
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},
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{
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displayName: 'Data',
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name: 'messageData',
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type: 'string',
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displayOptions: {
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show: {
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operation: ['push'],
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},
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},
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default: '',
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required: true,
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description: 'Data to push',
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},
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{
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displayName: 'Tail',
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name: 'tail',
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type: 'boolean',
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displayOptions: {
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show: {
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operation: ['push', 'pop'],
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},
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},
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default: false,
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description: 'Whether to push or pop data from the end of the list',
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},
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{
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displayName: 'Name',
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name: 'propertyName',
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type: 'string',
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displayOptions: {
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show: {
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operation: ['pop'],
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},
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},
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default: 'propertyName',
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description:
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'Optional name of the property to write received data to. Supports dot-notation. Example: "data.person[0].name".',
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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: ['pop'],
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},
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},
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placeholder: 'Add Option',
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default: {},
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options: [
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{
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displayName: 'Dot Notation',
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name: 'dotNotation',
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type: 'boolean',
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default: true,
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// eslint-disable-next-line n8n-nodes-base/node-param-description-boolean-without-whether
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description:
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'<p>By default, dot-notation is used in property names. This means that "a.b" will set the property "b" underneath "a" so { "a": { "b": value} }.<p></p>If that is not intended this can be deactivated, it will then set { "a.b": value } instead.</p>.',
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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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credentialTest: { redisConnectionTest },
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};
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async execute(this: IExecuteFunctions) {
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// TODO: For array and object fields it should not have a "value" field it should
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// have a parameter field for a path. Because it is not possible to set
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// array, object via parameter directly (should maybe be possible?!?!)
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// Should maybe have a parameter which is JSON.
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const credentials = await this.getCredentials('redis');
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const client = setupRedisClient(credentials);
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await client.connect();
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await client.ping();
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const operation = this.getNodeParameter('operation', 0);
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const returnItems: INodeExecutionData[] = [];
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try {
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if (operation === 'info') {
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const result = await client.info();
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returnItems.push({ json: convertInfoToObject(result) });
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} else if (
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['delete', 'get', 'keys', 'set', 'incr', 'publish', 'push', 'pop'].includes(operation)
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) {
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const items = this.getInputData();
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let item: INodeExecutionData;
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for (let itemIndex = 0; itemIndex < items.length; itemIndex++) {
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item = { json: {}, pairedItem: { item: itemIndex } };
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if (operation === 'delete') {
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const keyDelete = this.getNodeParameter('key', itemIndex) as string;
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await client.del(keyDelete);
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returnItems.push(items[itemIndex]);
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} else if (operation === 'get') {
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const propertyName = this.getNodeParameter('propertyName', itemIndex) as string;
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const keyGet = this.getNodeParameter('key', itemIndex) as string;
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const keyType = this.getNodeParameter('keyType', itemIndex) as string;
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const value = (await getValue(client, keyGet, keyType)) ?? null;
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const options = this.getNodeParameter('options', itemIndex, {});
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if (options.dotNotation === false) {
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item.json[propertyName] = value;
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} else {
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set(item.json, propertyName, value);
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}
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returnItems.push(item);
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} else if (operation === 'keys') {
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const keyPattern = this.getNodeParameter('keyPattern', itemIndex) as string;
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const getValues = this.getNodeParameter('getValues', itemIndex, true) as boolean;
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const keys = await client.keys(keyPattern);
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if (!getValues) {
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returnItems.push({ json: { keys } });
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continue;
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}
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for (const keyName of keys) {
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item.json[keyName] = await getValue(client, keyName);
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}
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returnItems.push(item);
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} else if (operation === 'set') {
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const keySet = this.getNodeParameter('key', itemIndex) as string;
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const value = this.getNodeParameter('value', itemIndex) as string;
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const keyType = this.getNodeParameter('keyType', itemIndex) as string;
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const valueIsJSON = this.getNodeParameter('valueIsJSON', itemIndex, true) as boolean;
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const expire = this.getNodeParameter('expire', itemIndex, false) as boolean;
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const ttl = this.getNodeParameter('ttl', itemIndex, -1) as number;
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await setValue.call(this, client, keySet, value, expire, ttl, keyType, valueIsJSON);
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returnItems.push(items[itemIndex]);
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} else if (operation === 'incr') {
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const keyIncr = this.getNodeParameter('key', itemIndex) as string;
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const expire = this.getNodeParameter('expire', itemIndex, false) as boolean;
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const ttl = this.getNodeParameter('ttl', itemIndex, -1) as number;
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const incrementVal = await client.incr(keyIncr);
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if (expire && ttl > 0) {
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await client.expire(keyIncr, ttl);
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}
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returnItems.push({ json: { [keyIncr]: incrementVal } });
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} else if (operation === 'publish') {
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const channel = this.getNodeParameter('channel', itemIndex) as string;
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const messageData = this.getNodeParameter('messageData', itemIndex) as string;
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await client.publish(channel, messageData);
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returnItems.push(items[itemIndex]);
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} else if (operation === 'push') {
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const redisList = this.getNodeParameter('list', itemIndex) as string;
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const messageData = this.getNodeParameter('messageData', itemIndex) as string;
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const tail = this.getNodeParameter('tail', itemIndex, false) as boolean;
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await client[tail ? 'rPush' : 'lPush'](redisList, messageData);
|
|
returnItems.push(items[itemIndex]);
|
|
} else if (operation === 'pop') {
|
|
const redisList = this.getNodeParameter('list', itemIndex) as string;
|
|
const tail = this.getNodeParameter('tail', itemIndex, false) as boolean;
|
|
const propertyName = this.getNodeParameter(
|
|
'propertyName',
|
|
itemIndex,
|
|
'propertyName',
|
|
) as string;
|
|
|
|
const value = await client[tail ? 'rPop' : 'lPop'](redisList);
|
|
|
|
let outputValue;
|
|
try {
|
|
outputValue = value && JSON.parse(value);
|
|
} catch {
|
|
outputValue = value;
|
|
}
|
|
const options = this.getNodeParameter('options', itemIndex, {});
|
|
if (options.dotNotation === false) {
|
|
item.json[propertyName] = outputValue;
|
|
} else {
|
|
set(item.json, propertyName, outputValue);
|
|
}
|
|
returnItems.push(item);
|
|
}
|
|
}
|
|
}
|
|
} catch (error) {
|
|
throw error;
|
|
} finally {
|
|
await client.quit();
|
|
}
|
|
|
|
return [returnItems];
|
|
}
|
|
}
|