n8n/dist/posthog/index.js

n8n Workflow Automation Tool

"use strict";
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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 Promise.resolve().then(() => __importStar(require('posthog-node')));
        this.postHog = new PostHog(posthogConfig.apiKey, {
            host: posthogConfig.apiHost,
        });
    }
    async stop() {
        if (this.postHog) {
            return this.postHog.shutdown();
        }
    }
    track(payload) {
        const instanceId = payload?.properties?.instance_id;
        this.postHog?.capture({
            event: payload.event,
            distinctId: payload.userId,
            sendFeatureFlags: true,
            properties: payload.properties,
            ...(typeof instanceId === 'string' && {
                groups: { [POSTHOG_GROUP_TYPE_INSTANCE]: instanceId },
            }),
        });
    }
    groupIdentify({ instanceId, distinctId, properties, }) {
        if (!instanceId)
            return;
        this.postHog?.capture({
            distinctId: distinctId || instanceId,
            event: '$groupidentify',
            sendFeatureFlags: true,
            properties: {
                $group_type: POSTHOG_GROUP_TYPE_INSTANCE,
                $group_key: instanceId,
                $group_set: properties,
            },
            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 flags = await this.postHog.getAllFlags(fullId, {
            personProperties: {
                created_at_timestamp: user.createdAt.getTime().toString(),
            },
            ...(instanceId && { groups: { [POSTHOG_GROUP_TYPE_INSTANCE]: instanceId } }),
        });
        if (flags && Object.keys(flags).length > 0) {
            this.flagsCache.set(fullId, { flags, expiresAt: Date.now() + FLAGS_CACHE_TTL_MS });
        }
        return flags ?? {};
    }
    applyEnvOverrides(flags) {
        if (this.globalConfig.evaluation.parallelExecutionEnabled) {
            return { ...flags, [api_types_1.EVAL_PARALLEL_EXECUTION_FLAG]: true };
        }
        return flags;
    }
};
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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