lamphc / koa-mongo

MongoDB middleware for koa, support connection pool.

koa-mongo

koa-mongo is a mongodb middleware for koa@2, support connection pool.

NB: If you use koa@1, use koa-mongo@0.

Install

npm i koa-mongo --save

Usage

app.use(mongo({
  host: 'localhost',
  port: 27017,
  user: 'admin',
  pass: '123456',
  db: 'test',
  max: 100,
  min: 1,
  ...
}));

or

app.use(mongo({
  uri: 'mongodb://admin:123456@localhost:27017/test', //or url
  max: 100,
  min: 1
  ...
}));

defaultOptions:

{
  host: 'localhost',
  port: 27017,
  db: 'test',
  max: 100,
  min: 1
}

More options see generic-pool.

Example

'use strict';

const koa = require('koa');
const mongo = require('koa-mongo');

const app = new koa();

app.use(mongo());
app.use(async (ctx, next) => {
  const result = await ctx.mongo.db('test').collection('users').insert({ name: 'haha' });
  const userId = result.ops[0]._id.toString();
  ctx.body = await ctx.mongo.db('test').collection('users').find().toArray();
  ctx.mongo.db('test').collection('users').remove({
    _id: mongo.ObjectId(userId)
  });
});
app.listen(3000, () => {
  console.log('listening on port 3000');
});

License

MIT