n8n
Version:
n8n Workflow Automation Tool
139 lines • 5.46 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);
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.PostHogClient = void 0;
const api_types_1 = require("@n8n/api-types");
const config_1 = require("@n8n/config");
const di_1 = require("@n8n/di");
const n8n_core_1 = require("n8n-core");
const POSTHOG_GROUP_TYPE_INSTANCE = 'company';
const FLAGS_CACHE_TTL_MS = 10 * 60 * 1000;
let PostHogClient = class PostHogClient {
constructor(instanceSettings, globalConfig) {
this.instanceSettings = instanceSettings;
this.globalConfig = globalConfig;
this.flagsCache = new Map();
}
async init() {
const { enabled, posthogConfig } = this.globalConfig.diagnostics;
if (!enabled) {
return;
}
const { PostHog } = await import('posthog-node');
this.postHog = new PostHog(posthogConfig.apiKey, {
host: posthogConfig.apiHost,
});
}
async stop() {
if (this.postHog) {
return await this.postHog.shutdown();
}
}
track(payload) {
if (!payload.userId || payload.userId === this.instanceSettings.instanceId)
return;
const instanceId = payload?.properties?.instance_id;
this.postHog?.capture({
event: payload.event,
distinctId: payload.userId,
properties: payload.properties,
...(typeof instanceId === 'string' && {
groups: { [POSTHOG_GROUP_TYPE_INSTANCE]: instanceId },
}),
});
}
groupIdentify({ instanceId, distinctId, properties, }) {
if (!instanceId)
return;
this.postHog?.capture({
distinctId: distinctId ?? `${POSTHOG_GROUP_TYPE_INSTANCE}_${instanceId}`,
event: '$groupidentify',
properties: {
$group_type: POSTHOG_GROUP_TYPE_INSTANCE,
$group_key: instanceId,
$group_set: properties,
...(!distinctId && { $process_person_profile: false }),
},
groups: {
[POSTHOG_GROUP_TYPE_INSTANCE]: instanceId,
},
});
}
identify({ distinctId, properties, }) {
if (!distinctId)
return;
this.postHog?.identify({
distinctId,
properties: properties ?? undefined,
});
}
async getFeatureFlags(user) {
let flags = {};
try {
flags = await this.fetchFlagsFromPostHog(user);
}
catch {
}
return this.applyEnvOverrides(flags);
}
async fetchFlagsFromPostHog(user) {
if (!this.postHog)
return {};
const { instanceId } = this.instanceSettings;
const fullId = [instanceId, user.id].join('#');
const cached = this.flagsCache.get(fullId);
if (cached && cached.expiresAt > Date.now()) {
return cached.flags;
}
const evaluatedFlags = await this.postHog.evaluateFlags(fullId, {
personProperties: {
created_at_timestamp: user.createdAt.getTime().toString(),
},
...(instanceId && { groups: { [POSTHOG_GROUP_TYPE_INSTANCE]: instanceId } }),
});
const flags = this.resolveFeatureFlagVariants(evaluatedFlags);
if (Object.keys(flags).length > 0) {
this.flagsCache.set(fullId, { flags, expiresAt: Date.now() + FLAGS_CACHE_TTL_MS });
}
return flags;
}
resolveFeatureFlagVariants(evaluatedFlags) {
const result = {};
if (!evaluatedFlags || !Array.isArray(evaluatedFlags.keys))
return result;
for (const key of evaluatedFlags.keys) {
try {
result[key] = evaluatedFlags.getFlag(key);
}
catch { }
}
return result;
}
applyEnvOverrides(flags) {
const overrides = {};
if (this.globalConfig.evaluation.collectionsEnabled) {
overrides[api_types_1.EVAL_COLLECTIONS_FLAG] = true;
}
if (this.globalConfig.evaluation.configEvalsEnabled) {
overrides[api_types_1.CONFIG_EVALUATIONS_FLAG] = api_types_1.CONFIG_EVALUATIONS_ENABLED_VARIANT;
}
if (this.globalConfig.evaluation.agentEvalsEnabled) {
overrides[api_types_1.AGENT_EVALS_FLAG] = true;
}
return Object.keys(overrides).length === 0 ? flags : { ...flags, ...overrides };
}
};
exports.PostHogClient = PostHogClient;
exports.PostHogClient = PostHogClient = __decorate([
(0, di_1.Service)(),
__metadata("design:paramtypes", [n8n_core_1.InstanceSettings, config_1.GlobalConfig])
], PostHogClient);
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