| await coll.findOne({ title: 'Hamlet' }); |
{ title: 'Hamlet', type: 'movie', ... } |
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| coll.find({ year: 2005 }); |
[ | { title: 'Christmas in Boston', year: 2005, ... }, | { title: 'Chicken Little', year: 2005, ... }, | ... | ] |
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| await coll.insertOne({ title: 'Jackie Robinson' }); |
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Insert Multiple Documents
| await coll.insertMany([ | { title: 'Dangal', rating: 'Not Rated' }, | { title: 'The Boss Baby', rating: 'PG' } | ]); |
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| await coll.updateOne( | { title: 'Amadeus' }, | { $set: { 'imdb.rating': 9.5 } } | ); |
{ title: 'Amadeus', imdb: { rating: 9.5, ... } } |
|
Update Multiple Documents
| await coll.updateMany( | { year: 2001 }, | { $inc: { 'imdb.votes': 100 } } | ); |
[ | { title: 'A Beautiful Mind', year: 2001, imdb: { votes: 826257, ... }, | { title: 'Shaolin Soccer', year: 2001, imdb: { votes: 65442, ... }, | ... | ] |
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Update Arrays in Documents
| await coll.updateOne( | { title: 'Cosmos' }, | { $push: { genres: 'Educational' } } | ): |
{ title: 'Cosmos', genres: [ 'Documentary', 'Educational' ] } |
|
| await coll.replaceOne( | { name: 'Deli Llama', address: '2 Nassau St' }, | { name: 'Lord of the Wings', zipcode: 10001 } | ); |
{ name: 'Lord of the Wings', zipcode: 10001 } |
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| await coll.deleteOne({ title: 'Congo' }); |
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Delete Multiple Documents
| await coll.deleteMany({ title: { $regex: /^Shark.*/ } }); |
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| await coll.bulkWrite([ | { | insertOne: { | document: { | title: 'A New Movie', | year: 2022 | } | } | }, | { | deleteMany: { | filter: { year: { $lt: 1970 } } | } | } | ]); |
BulkWriteResult { | result: { | ... | }, | ... | } |
|
| coll.watch([ { $match: { year: { $gte: 2022 } } } ]); |
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Access Data from a Cursor Iteratively
| const cursor = coll.find(); | for await (const doc of cursor) { | console.dir(doc); | } |
[ | { title: '2001: A Space Odyssey', ... }, | { title: 'The Sound of Music', ... }, | ... | ] |
|
Access Data from a Cursor as an Array
| const cursor = coll.find(); | const results = await cursor.toArray(); |
[ | { title: '2001: A Space Odyssey', ... }, | { title: 'The Sound of Music', ... }, | ... | ] |
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| await coll.countDocuments({ year: 2000 }); |
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List the Distinct Documents or Field Values | await coll.distinct('year'); |
[ 1891, 1893, 1894, 1896, 1903, ... ] |
|
Limit the Number of Documents Retrieved
| [ | { title: 'My Neighbor Totoro', ... }, | { title: 'Amélie', ... } | ] |
|
| coll.find({ title: { $regex: /^Rocky/} }, { skip: 2 }); |
[ | { title: 'Rocky III', ... }, | { title: 'Rocky IV', ... }, | { title: 'Rocky V'}, ... } | ] |
|
Sort the Documents When Retrieving Them
| coll.find().sort({ year: 1}); |
[ | { title: 'Newark Athlete', year: 1891, ... }, | { title: 'Blacksmith Scene', year: 1893, ...}, | { title: 'Dickson Experimental Sound Film', year: 1894}, | ... | ] |
|
Project Document Fields When Retrieving Them
| coll.find().project({ _id: 0, year: 1, imdb: 1 }); |
[ | { year: 2012, imdb: { rating: 5.8, votes: 230, id: 8256 }}, | { year: 1985, imdb: { rating: 7.0, votes: 447, id: 1654 }}, | ... | ] |
|
| await coll.createIndex({ title: 1, year: -1 }); |
|
| | coll.find({ $text: { $search: 'zissou' } }); |
[ | { title: 'The Life Aquatic with Steve Zissou', ... } | ] |
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Install the Driver Dependency | "dependencies": { | "mongodb": "^6.10", | ... | } |
|