Registry / database / database-aggregator

database-aggregator

library3.1.4jsnpmunverified

A database aggregator that collects data from various sources and stores them in a MongoDB database. It provides a built-in scheduler to launch synchronization and aggregation scripts as child processes, plus an HTTP API for read-only queries and process management. Current stable version is 3.1.4. The package requires manual configuration of scripts and environment variables. It ships TypeScript types and uses debug logging. Differentiators include its script-based extensibility and scheduler status tracking.

database devops

npm install database-aggregator

github ↗package ↗homepage ↗

INSTALL

IMPORT

SIG · DATABASE-AGGREGATO

database-aggregator

databasejavascriptv3.1.4

harness data pending

Install & Compatibility

Where this runs

No compatibility data collected yet for this library.

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

default

✓ import databaseAggregator from 'database-aggregator'

✗ const databaseAggregator = require('database-aggregator')

ESM-only; CommonJS require will fail.

Scheduler

✓ import { Scheduler } from 'database-aggregator'

✗ const { Scheduler } = require('database-aggregator')

Named export, ESM only. TypeScript types included.

HttpApi

✓ import { HttpApi } from 'database-aggregator'

✗ const HttpApi = require('database-aggregator').HttpApi

Named export, ESM only.

Starts the database aggregator scheduler and HTTP API with configurable MongoDB URL and home directory.

import { Scheduler, HttpApi } from 'database-aggregator'; import { createServer } from 'http'; const config = { mongoUrl: process.env.MONGO_URL ?? 'mongodb://localhost:27017', homeDir: process.env.DATABASE_AGGREGATOR_HOME_DIR ?? './config', }; const scheduler = new Scheduler(config); const api = new HttpApi({ scheduler, port: 3000 }); scheduler.start(); api.start(); createServer((req, res) => { res.writeHead(200, { 'Content-Type': 'application/json' }); res.end(JSON.stringify({ status: 'running' })); }).listen(8080); console.log('Aggregator started on port 8080');

Debug

Known issues

gotchaEnvironment variable DATABASE_AGGREGATOR_HOME_DIR must be set, otherwise the aggregator will fail to find configuration.

fix

Set DATABASE_AGGREGATOR_HOME_DIR to the directory containing configuration files.

affects: >=1.0.0

gotchaMongoDB must be running and accessible before starting the aggregator, as it stores status and logs in the database.

fix

Ensure MongoDB is running and the connection string is correct.

affects: >=1.0.0

gotchaThe package is ESM-only since v2; CommonJS require() will throw a Module parse error.

fix

Use import syntax or set type: 'module' in package.json.

affects: >=2.0.0

deprecatedPrevious versions used debug levels 'info' and 'verbose'; they are now replaced by 'warn' and 'error'.

fix

Update DEBUG environment variable to use 'debug', 'warn', or 'error' as documented.

affects: >=3.0.0

Errors

Common errors & fixes

Error: Cannot find module 'database-aggregator'

Package is not installed or not in node_modules.

fix

Run 'npm install -g database-aggregator' or add it to your project's dependencies.

SyntaxError: Cannot use import statement outside a module

Running ESM code without setting type: 'module' in package.json.

fix

Add 'type': 'module' to package.json or rename file to .mjs

TypeError: databaseAggregator is not a constructor

Using default import when the package exports named exports only.

fix

Use named import: import { Scheduler } from 'database-aggregator'

Error: connect ECONNREFUSED 127.0.0.1:27017

MongoDB is not running or not reachable at the specified host and port.

fix

Start MongoDB with 'docker start mongo' or update MONGO_URL environment variable.

Upgrade

Version history

3.1.4latest on npm

Audit

Dependencies

No dependency data recorded yet.

Agent activity

11 hits · last 30 days

node

Resources

githubhttps://github.com/cheminfo/database-aggregator ↗

packagedatabase-aggregator ↗

homepagehttps://github.com/cheminfo/database-aggregator#readme ↗