mongodb find document by array object code example

Example 1: search inside array with object mongodb

db.users.find({awards: {$elemMatch: {award:'National Medal', year:1975}}})

Example 2: find object in array mongodb

db.users.findOne({"_id": id},{awards: {$elemMatch: {award:'Turing Award', year:1977}}})

Example 3: mongodb find array with element

// Finds all documents that have a property named "tags"
// which has at least one array element matching "red"
db.inventory.find( { tags: "red" } )