mongo_pool 1.0.4

A MongoDB connection pool for Dart. Using this package, your application will open as many database connections as you specify as soon as it runs.

MongoDB Connection Pooling - Mongo Pool

Introduction

This package is a simple connection pooling for MongoDB. It is based on the mongo_dart package.

Features

• Connection pool size configuration
• Automatic connection pool expansion
• Instance where you can access the connection from the pool [NEW]

Getting started

Using this package, your application will open as many database connections as you specify as soon as it runs. You can open, close and change the number of these links at any time.

Usage

With mongodb package, you can use the MongoDbPool class to create a pool of connections.

A simple usage example:

import 'package:mongo_pool/src/mongo_pool_service.dart';

Future<void> main() async {
  /// Create a pool of 5 connections
  final poolService = MongoDbPoolService(
    poolSize: 5,
    mongoDbUri: 'mongodb://localhost:27017/my_database',
  );

  /// Open the pool
  openDbPool(poolService);

  /// Get a connection from pool
  final conn = await poolService.acquire();

  // Database operations
  final collection = conn.collection('my_collection');
  final result = await collection.find().toList();
  // Connection release for other operations
  poolService.release(conn);

  // Pool close
  await poolService.close();
}

Future<void> openDbPool(MongoDbPoolService service) async {
  try {
    await service.open();
  } on Exception catch (e) {
    /// handle the exception here
    print(e.toString());
  }
}

Testing

To run the tests, you need to have a MongoDB instance running on your machine. You can use the following command to start a MongoDB instance using Docker:

docker run -d -p 27017:27017 --name mongo mongo

Problems Solved

• ✅ Fixed the issue where calls made without waiting for connections to open would get an error when creating a pool. Please see example codes
• ✅ Throw error when there is unable to connect to the database

Get package for using in your project

Show in pub.dev

Additional information

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