How to query Array in MongoDB?

user_14663317 0
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i am new to MongoDB and I have documents as below

{ "_id" : ObjectId("604b7d62b19a72a2b89028e6"), "name" : "ram", "tags" : [ "mobile", "iphone", "india" ] }
{"_id" : ObjectId("604b7d83b19a72a2b89028e7"), "name" : "shyam", "tags" : [ "mobile", "iphone", "india" ] }
{ "_id" : ObjectId("604b7d9bb19a72a2b89028e8"), "name" : "ravi", "tags" : [ "mobile", "android", "india" ] }
{ "_id" : ObjectId("604b7db5b19a72a2b89028e9"), "name" : "aman", "tags" : [ "mobile", "android", "india" ] }
{ "_id" : ObjectId("604b7db5b19a72a2b89028e9"), "name" : "aman", "tags" : [ "windows", "usa" ] }
{ "_id" : ObjectId("604b7db5b19a72a2b89028e9"), "name" : "aman", "tags" : [ "tech", "apple", "microsoft" ] }

How to write query so that if i query for following tags ["mobile", "android", "12", "pro"] i would get following result

{ "_id" : ObjectId("604b7d9bb19a72a2b89028e8"), "name" : "ravi", "tags" : [ "mobile", "android", "india" ] }
{ "_id" : ObjectId("604b7db5b19a72a2b89028e9"), "name" : "aman", "tags" : [ "mobile", "android", "india" ] } 
{ "_id" : ObjectId("604b7d62b19a72a2b89028e6"), "name" : "ram", "tags" : [ "mobile", "iphone", "india" ] }
{ "_id" : ObjectId("604b7d83b19a72a2b89028e7"), "name" : "shyam", "tags" : [ "mobile", "iphone", "india" ] }
mongoose mongodb nosql database
1 Answers

Demo - https://mongoplayground.net/p/EMW8xgV1yrU

Use $in

The $in operator selects the documents where the value of a field equals any value in the specified array. To specify an $in expression, use the following prototype:

db.collection.find({
  tags: { $in: [ "mobile", "android", "12", "pro" ] }
})
user_22242650
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