mongo-handler, a simple MongoDB wrapper module
This module was written to negate the need for redundant error and null checks when writing MongoDB queries in Node. Each function has one callback argument that can either be an object or null (error).
Importing
You must pass the Mongo URL when initializing the module, in this format mongodb://host:port/database
var mongo = require('mongo-handler')('mongodb://localhost:27017/myAwesomeDatabase');Insert
Insert a new document into a collection, document must be an object.
mongo.insertDocument('collectionName', document, function(result) {
console.log('Inserted!');
});e.x
mongo.insertDocument('Users', { firstName : 'John', lastName : 'Doe' }, function(result) {
console.log('Inserted a mew user document!');
});Find
Find all documents that contain the where argument. where must be an object, if the object is empty all documents will be returned.
mongo.findDocuments('collectionName', where, function(docs) {
console.log('Documents:', docs);
});e.x
mongo.findDocuments('Users', { firstName : 'Bob' }, function(docs) {
console.log('Documents with firstName = Bob ', docs);
});Update
Update all documents that contain the where argument. where must be an object, if the object is empty all documents will be updated.
mongo.updateDocument('collectionName', where, new, function(result) {
console.log('Updated!');
});e.x
mongo.updateDocument('Users', { firstName : 'Bob' }, { firstName : 'John' }, function(result) {
console.log('Updated name of Bob to John.');
});Delete
Delete the first document that contains the where argument. (Note: this function only removes one document)
mongo.deleteDocument('collectionName', where, function(result) {
console.log('Deleted!');
});e.x
mongo.deleteDocument('Users', { firstName : 'Bob' }, function(result) {
console.log('Deleted the a document with firstName = Bob');
});Find and Sort
Find documents using where (same as findDocuments) then sort using the sortBy object. sortBy should contain the key to sort by and a 1 or -1 for ascending or descending, respectively.
mongo.findAndSort('collectionName', where, sortBy, function(docs) {
console.log('Sorted Documents:', docs);
});e.x
mongo.findAndSort('Users', {}, { age : -1 }, function(docs) {
console.log('All users sorted from oldest to youngest:', docs);
});