Mongodb unix socket connection with an official mongo-go-driver?

Question

Can't find any information about unix domain sockets connection support with official mongo-go-driver.

Is it implemented and supported officially?

The "mongodb:///tmp/mongodb-27017.sock" uri does not work.

Answer 1

Is it implemented and supported officially?

Using the official MongoDB Go driver you can connect directly to a URI socket. You just need to escape the slash(es). For example using v1.1+:

mongoURI := "mongodb://%2Ftmp%2Fmongodb-27017.sock"

client, err := mongo.NewClient(options.Client().ApplyURI(mongoURI))
if err != nil {
    panic(err)
}
ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
defer cancel()
err = client.Connect(ctx)
if err != nil {
    panic(err)
}

In addition, mongo.Client supports two types of connection string, either:

• Standard Connection String format, ie mongodb://user:pwd@mongodb0.example.com:27017,mongodb1.example.com:27017,mongodb2.example.com:27017/admin?replicaSet=myRepl

• DNS Seedlist Connection format, ie mongodb+srv://server.example.com/

Please note that MongoDB, by design, is a distributed database (see Replica Set ). Socket is a file based communication and intended for access within a single machine. Unless your use case and requirements specifically require to connect directly via Unix sockets, I'd recommend to use one of the connection string formats above instead.