n8n
Version:
n8n Workflow Automation Tool
82 lines • 3.6 kB
JavaScript
;
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __metadata = (this && this.__metadata) || function (k, v) {
if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Publisher = void 0;
const di_1 = require("@n8n/di");
const n8n_core_1 = require("n8n-core");
const config_1 = __importDefault(require("../../config"));
const redis_client_service_1 = require("../../services/redis-client.service");
const constants_1 = require("../constants");
let Publisher = class Publisher {
constructor(logger, redisClientService, instanceSettings) {
this.logger = logger;
this.redisClientService = redisClientService;
this.instanceSettings = instanceSettings;
if (config_1.default.getEnv('executions.mode') !== 'queue')
return;
this.logger = this.logger.scoped(['scaling', 'pubsub']);
this.client = this.redisClientService.createClient({ type: 'publisher(n8n)' });
}
getClient() {
return this.client;
}
shutdown() {
this.client.disconnect();
}
async publishCommand(msg) {
if (config_1.default.getEnv('executions.mode') !== 'queue')
return;
await this.client.publish('n8n.commands', JSON.stringify({
...msg,
senderId: this.instanceSettings.hostId,
selfSend: constants_1.SELF_SEND_COMMANDS.has(msg.command),
debounce: !constants_1.IMMEDIATE_COMMANDS.has(msg.command),
}));
let msgName = msg.command;
const metadata = { msg: msg.command, channel: 'n8n.commands' };
if (msg.command === 'relay-execution-lifecycle-event') {
const { data, type } = msg.payload;
msgName += ` (${type})`;
metadata.type = type;
if ('executionId' in data)
metadata.executionId = data.executionId;
}
this.logger.debug(`Published pubsub msg: ${msgName}`, metadata);
}
async publishWorkerResponse(msg) {
await this.client.publish('n8n.worker-response', JSON.stringify(msg));
this.logger.debug(`Published ${msg.response} to worker response channel`);
}
async setIfNotExists(key, value) {
const success = await this.client.setnx(key, value);
return !!success;
}
async setExpiration(key, ttl) {
await this.client.expire(key, ttl);
}
async get(key) {
return await this.client.get(key);
}
async clear(key) {
await this.client?.del(key);
}
};
exports.Publisher = Publisher;
exports.Publisher = Publisher = __decorate([
(0, di_1.Service)(),
__metadata("design:paramtypes", [n8n_core_1.Logger,
redis_client_service_1.RedisClientService,
n8n_core_1.InstanceSettings])
], Publisher);
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