Supported MongoDB data types and drivers

The following tables list supported MongoDB data types, drivers, and third-party tools for Firestore with MongoDB compatibility.

Data types

BSON Type Supported
32-bit Integer (int) Yes
64-bit Integer (long) Yes
Array Yes
Binary Data Yes
Boolean Yes
Date Yes
DBPointer No
DBRef No
Decimal128 Yes
Double Yes
JavaScript No
JavaScript (with scope) No
MaxKey Yes
MinKey Yes
Null Yes
Object Yes
ObjectId Yes
Regular Expression Yes
String Yes
Symbol No
Timestamp Yes
Undefined No

Document _id

The top-level _id field in a document must be one of the following types:

  • ObjectId
  • String
  • 64-bit Integer (long)
  • 32-bit Integer (int)
  • Double
  • Binary
  • Object

The total size of the _id must not exceed 1500 bytes.

Each values within an Object-typed ID must also be of a supported ID type or an Array of values, each of which is of a supported ID type.

Other BSON types are not supported.

Languages and MongoDB drivers

Firestore with MongoDB compatibility supports the following driver versions:

Language Driver versions
Java 5.x
Node.js 6.x
5.x
Python 4.x
3.x (x ≥ 12)
Go 2.x
C# 3.x
Ruby 2.x (x ≥ 16)

OIDC authentication support

The Go, C#, and Ruby drivers support OpenID Connect (OIDC) authentication from Google Cloud for all supported driver versions.

The Java, Node.js, and Python drivers support OIDC authentication from Google Cloud starting with the following driver versions:

  • Java: 4.10
  • Node.js: 6.7
  • Python: 4.7

Third-party tools

Firestore with MongoDB compatibility supports third-party tools described in this section.

Tool Description
mongoimport MongoDB Database Tools
mongoexport MongoDB Database Tools
mongodump MongoDB Database Tools
mongorestore MongoDB Database Tools
mongosh MongoDB Shell
Mongoose MongoDB object modeling tool
MongoDB Compass GUI tool for data exploration

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