mongodb/mongo-go-driver

★ 8,522GoAudience · developerComplexity · 2/5LicenseSetup · moderate

Mindmap

mindmap
  root((mongo-go-driver))
    What it does
      Connect Go to MongoDB
      Read and write documents
      Network compression
    Operations
      Insert records
      Search and filter
      Update and delete
    Compression Options
      Snappy
      Zlib
      Zstandard
    Setup
      Go 1.19 or newer
      MongoDB 4.2 or newer
    Audience
      Go developers
      Backend engineers

mindmap root((mongo-go-driver)) What it does Connect Go to MongoDB Read and write documents Network compression Operations Insert records Search and filter Update and delete Compression Options Snappy Zlib Zstandard Setup Go 1.19 or newer MongoDB 4.2 or newer Audience Go developers Backend engineers

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Things people build with this

USE CASE 1

Add MongoDB database access to a Go web server or REST API to store and retrieve records

USE CASE 2

Search, update, and delete flexible document records from within a Go application

USE CASE 3

Enable Snappy or Zstandard network compression to reduce bandwidth between a Go app and a remote MongoDB server

USE CASE 4

Upgrade a project from the older mongo-go-driver 1.x to version 2.0 using the provided migration guide

Tech stack

Getting it running

Difficulty · moderate Time to first run · 30min

Requires a running MongoDB 4.2 or newer server and Go 1.19 or newer installed locally.

Free to use for any purpose, including commercial use, with attribution under the Apache License.

In plain English

This is the official library that lets programs written in Go talk to a MongoDB database. MongoDB is a database that stores information as flexible documents (think structured text records) rather than the rows and columns of a traditional spreadsheet-style database. This library is maintained by MongoDB themselves, so it stays in sync with new database features. A developer adds this library to their Go project and uses it to connect to a running MongoDB server, then perform operations like storing new records, searching for existing ones, updating data, or deleting it. The README walks through the basic steps: connect with a URL pointing at the database, get a reference to a specific collection (the MongoDB equivalent of a table), and then read or write documents. The library also supports network compression, which shrinks the data sent back and forth between the application and the database server. Three compression formats are available: Snappy, Zlib, and Zstandard. Enabling one can reduce bandwidth use, which matters when the application and database are on separate machines. This is version 2.0, which introduced breaking changes from the older 1.x line. The README links to a migration guide for developers upgrading. It requires Go version 1.19 or newer and MongoDB 4.2 or newer. The project is licensed under the Apache License and accepts community contributions through a public issue tracker. Bug reports and feature requests go through MongoDB's Jira system.

Copy-paste prompts

Prompt 1

Show me how to connect a Go application to a local MongoDB server using mongo-go-driver v2 and insert a document into a collection.

Prompt 2

I have a MongoDB collection of user records. Write a Go function using mongo-go-driver that searches for all users where the age field is greater than 30 and returns them as a slice of structs.

Prompt 3

Help me enable Zstandard compression in my mongo-go-driver connection string to reduce bandwidth between my Go app and MongoDB Atlas.

Prompt 4

I am migrating from mongo-go-driver 1.x to 2.0. What are the most important breaking changes I need to handle in my existing code?

Prompt 5

Show me how to handle errors correctly when inserting documents with mongo-go-driver, including detecting duplicate key errors.

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