Authentication using the metadata service

Note

The article is being updated.

Below are examples of the code for authentication using environment variables in different YDB SDKs.

Go

Java

package main
import (
    "context"
    "os"
    "github.com/ydb-platform/ydb-go-sdk/v3"
    yc "github.com/ydb-platform/ydb-go-yc"
)
func main() {
    ctx, cancel := context.WithCancel(context.Background())
    defer cancel()
    db, err := ydb.Open(
        ctx,
        os.Getenv("YDB_CONNECTION_STRING"),
        yc.WithMetadataCredentials(ctx),
        yc.WithInternalCA(), // append Yandex Cloud certificates
    )
    if err != nil {
        panic(err)
    }
    defer func() { 
        _ = db.Close(ctx) 
    }()
}

public void work(String connectionString) {
    AuthProvider authProvider = CloudAuthProvider.newAuthProvider(
        ComputeEngineCredentialProvider.builder()
            .build()
    );
    GrpcTransport transport = GrpcTransport.forConnectionString(connectionString)
            .withAuthProvider(authProvider)
            .build();
    TableClient tableClient = TableClient
        .newClient(GrpcTableRpc.ownTransport(transport))
        .build());
    doWork(tableClient);
    tableClient.close();
}