js-data

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Give your data the treatment it deserves with a framework-agnostic, datastore-agnostic JavaScript ORM built for ease of use and peace of mind. Works in Node.js and in the Browser.

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DSMongoDBAdapter

MongoDB adapter for js-data

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Quick Start

npm install --save js-data js-data-mongodb

var JSData = require('js-data');
var DSMongoDBAdapter = require('js-data-mongodb');

var store = new JSData.DS();
var adapter = new DSMongoDBAdapter('mongodb://localhost:27017');

// "store" will now use the MongoDB adapter for all async operations
store.registerAdapter('mongodb', adapter, { default: true });

var User = store.defineResource({
  // Resource name is required
  name: 'user',
  
  // Why couldn't Mongo just use "id"?
  idAttribute: '_id',

  // map this resource to a collection, default is Resource#name
  table: 'users'
});

Community & Links

API

new DSMongoDBAdapter(uri)

// or

new DSMongoDBAdapter(options)

Options

uri

MongoDB server uri, e.g. 'mongodb://localhost:27017'

Need help?

Want more examples or have a question? Ask on the Slack channel or post on the mailing list then we'll get your question answered and probably update this wiki.

Adapter Methods

  • create - Creates a new item in MongoDB.
  • destroy - Delete an item from MongoDB.
  • destroyAll - Delete a collection of items from MongoDB.
  • find - Get an item from MongoDB.
  • findAll - Get a collection of items from MongoDB
  • update - Update an item in MongoDB.
  • updateAll - Update a collection of items in MongoDB.

create(resourceConfig, attrs)

Creates a new item in MongoDB.

Returns a promise.

Argument
Type
Description

resourceConfig

object

The Resource definition created by DS#defineResource.

attrs

object

The properties from which to create the item.

Examples
var JSData = require('js-data');
var DSMongoDBAdapter = require('js-data-mongodb');

var store = new JSData.DS();
var adapter = new DSMongoDBAdapter({
  uri: 'mongodb://localhost:27017'
});

store.registerAdapter('mongo', adapter, { default: true });

var Document = store.defineResource('document');

// bypass the data store
adapter.create(Document, { author: 'John' }).then(function (document) {
  document; // { _id: '590a8sd0f9a8sdf9jas', author: 'John' }
});

// Normally you would just go through the data store
Document.create({ author: 'John' }).then(function (document) {
  document; // { _id: '590a8sd0f9a8sdf9jas', author: 'John' }
});

destroy(resourceConfig, id)

Delete an item from MongoDB.

Returns a promise.

resourceConfig

object

The Resource definition created by DS#defineResource.

id

string or number

The primary key of the item to destroy.

Examples
var JSData = require('js-data');
var DSMongoDBAdapter = require('js-data-mongodb');

var store = new JSData.DS();
var adapter = new DSMongoDBAdapter({
  uri: 'mongodb://localhost:27017'
});

store.registerAdapter('mongo', adapter, { default: true });

var Document = store.defineResource('document');

Document.inject({ _id: '590a8sd0f9a8sdf9jas', author: 'John' });

// bypass the data store
adapter.destroy(Document, '590a8sd0f9a8sdf9jas');

// Normally you would just go through the data store
Document.destroy('590a8sd0f9a8sdf9jas');

destroyAll(resourceConfig, params)

Delete a collection of items from MongoDB.

Returns a promise.

Argument
Type
Description

resourceConfig

object

The Resource definition created by DS#defineResource.

params

object

Query parameters for selecting the items to destroy. See Query Syntax. Default: { }

Examples
var JSData = require('js-data');
var DSMongoDBAdapter = require('js-data-mongodb');

var store = new JSData.DS();
var adapter = new DSMongoDBAdapter({
  uri: 'mongodb://localhost:27017'
});

store.registerAdapter('mongo', adapter, { default: true });

var Document = store.defineResource('document');

var params = {
  author: 'John'
};

// bypass the data store
adapter.destroyAll(Document, params);

// normally you would go through the data store
Document.destroyAll(params);

find(resourceConfig, id[, options])

Get an item from MongoDB.

Returns a promise.

Argument
Type
Description

resourceConfig

object

The Resource definition created by DS#defineResource.

id

string or number

The primary key of the item to retrieve.

options

object

Optional configuration.

options.with

array of strings

Array of relation names or relation field names to eager load with the retrieved item. Supports nested relations, e.g. adapter.find(Post, 1, { with: ['user.organization'] })

Examples
var JSData = require('js-data');
var DSMongoDBAdapter = require('js-data-mongodb');

var store = new JSData.DS();
var adapter = new DSMongoDBAdapter({
  uri: 'mongodb://localhost:27017'
});

store.registerAdapter('mongo', adapter, { default: true });

var Document = store.defineResource({
  name: 'document',
  relations: {
    belongsTo: {
      user: {
        localKey: 'userId',
        localField: 'user'
      }
    }
  }
});
var User = store.defineResource({
  name: 'user',
  relations: {
    hasMany: {
      document: {
        foreignKey: 'userId',
        localField: 'documents'
      }
    },
    belongsTo: {
      organization: {
        localKey: 'organizationId',
        localField: 'organization'
      }
    }
  }
});
var Organization = store.defineResource({
  name: 'organization',
  relations: {
    hasMany: {
      user: {
        foreignKey: 'organizationId',
        localField: 'users'
      }
    }
  }
});

// bypass the data store
adapter.find(Document, '34j493j9sasdf9s', { with: ['user'] }).then(function (document) {
  document; // { _id: '34j493j9sasdf9s', content: 'foo', userId: '590a8sd0f9a8sdf9jas', user: {...} }
  document.user; // { _id: '590a8sd0f9a8sdf9jas', name: 'John Anderson' }
});

// Normally you would just go through the data store
Document.find('34j493j9sasdf9s', { with: ['user', 'user.organization'] }).then(function (document) {
  document; // { _id: '34j493j9sasdf9s', content: 'foo', userId: '590a8sd0f9a8sdf9jas', user: {...} }
  document.user; // { _id: '590a8sd0f9a8sdf9jas', name: 'John Anderson', organizationId: '9a9sdf8as0d9gas9' }
  document.user.organization; // { _id: '9a9sdf8as0d9gas9', name: 'Company' }
});

findAll(resourceConfig, params[, options])

Get a collection of items from MongoDB.

Returns a promise.

Argument
Type
Description

resourceConfig

object

The Resource definition created by DS#defineResource.

params

object

Query parameters for selecting the items to retrieve, limit, sort, etc. See Query Syntax. Default: { }

options

object

Optional configuration.

options.with

array of strings

Array of relation names or relation field names to eager load with the retrieved items. Supports nested relations, e.g. adapter.findAll(Post, 1, { with: ['user.organization'] })

Examples
var JSData = require('js-data');
var DSMongoDBAdapter = require('js-data-mongodb');

var store = new JSData.DS();
var adapter = new DSMongoDBAdapter({
  uri: 'mongodb://localhost:27017'
});

store.registerAdapter('mongo', adapter, { default: true });

var Document = store.defineResource({
  name: 'document',
  relations: {
    belongsTo: {
      user: {
        localKey: 'userId',
        localField: 'user'
      }
    }
  }
});
var User = store.defineResource({
  name: 'user',
  relations: {
    hasMany: {
      document: {
        foreignKey: 'userId',
        localField: 'documents'
      }
    },
    belongsTo: {
      organization: {
        localKey: 'organizationId',
        localField: 'organization'
      }
    }
  }
});
var Organization = store.defineResource({
  name: 'organization',
  relations: {
    hasMany: {
      user: {
        foreignKey: 'organizationId',
        localField: 'users'
      }
    }
  }
});

var params = {
  size: {
    '>': 15000000
  }
};

// bypass the data store
adapter.findAll(Document, params).then(function (documents) {
  documents[0].size; 15063940
});

// normally you would go through the data store
Document.findAll(params).then(function (documents) {
  documents[0].size; 94839687
});

adapter.findAll(Document, params, { with: ['user', 'user.organization'] }).then(function (documents) {
  documents[0].size;
  documents[0].user; // {...}
  documents[0].user.organization; // {...}
});

update(resourceConfig, id, attrs)

Update an item in MongoDB.

Returns a promise.

Argument
Type
Description

resourceConfig

object

The Resource definition created by DS#defineResource.

id

string or number

The primary key of the item to retrieve.

attrs

object

The attributes with which to update the item.

Examples
var JSData = require('js-data');
var DSMongoDBAdapter = require('js-data-mongodb');

var store = new JSData.DS();
var adapter = new DSMongoDBAdapter({
  uri: 'mongodb://localhost:27017'
});

store.registerAdapter('mongo', adapter, { default: true });

var Document = store.defineResource('document');

Document.inject({ _id: '590a8sd0f9a8sdf9jas', author: 'John' });

// bypass the data store
adapter.update(Document, '590a8sd0f9a8sdf9jas', { author: 'Johnny' }).then(function (document) {
  document; // { _id: '590a8sd0f9a8sdf9jas', author: 'Johnny' }
});

// Normally you would just go through the data store
Document.update('590a8sd0f9a8sdf9jas', { author: 'Johnny' }).then(function (document) {
  document; // { _id: '590a8sd0f9a8sdf9jas', author: 'Johnny' }
});

updateAll(resourceConfig, attrs, params)

Update a collection of items in MongoDB.

Returns a promise.

Argument
Type
Description

resourceConfig

object

The resource definition created by DS#defineResource.

attrs

object

The attributes with which to update the items.

params

object

Query parameters for selecting the items to update. See Query Syntax. Default: { }

Examples
var JSData = require('js-data');
var DSMongoDBAdapter = require('js-data-mongodb');

var store = new JSData.DS();
var adapter = new DSMongoDBAdapter({
  uri: 'mongodb://localhost:27017'
});

store.registerAdapter('mongo', adapter, { default: true });

var Document = store.defineResource('document');

Document.inject({ _id: '590a8sd0f9a8sdf9jas', author: 'John' });
Document.inject({ _id: '54lsd8f9as8df9a8sd9', author: 'John' });

// bypass the data store
adapter.updateAll(Document, { author: 'Johnny' }, { author: 'John' }).then(function (documents) {
  documents[0]; // { _id: '590a8sd0f9a8sdf9jas', author: 'Johnny' }
});

// Normally you would just go through the data store
Document.updateAll({ author: 'Johnny' }, { author: 'John' }).then(function (documents) {
  documents[0]; // { _id: '590a8sd0f9a8sdf9jas', author: 'Johnny' }
});

License

The MIT License (MIT)

Copyright (c) 2014-2015 Jason Dobry

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

DSMongoDBAdapter

MongoDB adapter for js-data