How to set a composite index in MongoDB with Ruby Driver?

Question

ruby

From the documentation you can see

require 'mongo'
include Mongo
client = Mongo::Client.new([ '127.0.0.1:27017' ], :database => 'publicdb')
client[:con].indexes.create_many([
{ :key => { name: 1 }},
{ :key => { label: -1 }}
])

The index is created fine, but I need to index the field from the parent, in MongoShell

db.con.createIndex({"name.tree":1})

, when trying to tell Ruby the string {:key => {name.tree: 1}} gives an error

syntax error, unexpected ':', expecting =>
{ :key => { name.wer: 1 }},

Answer 1

Solution - you need to read the documentation carefully)

index = "name.tree"
client[:con].indexes.create_one({ index => 1 })

, but what I tried to do at the beginning was building multiple indexes
The question is closed.