Example for transactions in mongodb with GoLang

Question

I need an example to implement transactions in MongoDB with GoLang.

I\'m using this golang driver for mongodb

https://github.com/mongodb/mongo-go-driver

Answer 1

This will help you

ctx := context.Background()
client, err := mongo.Connect(ctx, options.Client().ApplyURI("mongodb://localhost:27017"))
if err != nil {
    panic(err)
}

db := client.Database("testdb")
defer db.Client().Disconnect(ctx)
col := db.Collection("testcol")

// transaction
err = db.Client().UseSession(ctx, func(sessionContext mongo.SessionContext) error {
    err := sessionContext.StartTransaction()
    if err != nil {
        fmt.Println(err)
        return err
    }

    _, err = col.InsertOne(sessionContext, bson.M{"_id": "1", "name": "berry"})
    if err != nil {
        fmt.Println(err)
        return err
    }

    _, err = col.InsertOne(sessionContext, bson.M{"_id": "2", "name": "gucci"})
    if err != nil {
        sessionContext.AbortTransaction(sessionContext)
        fmt.Println(err)
        return err
    } else {
        sessionContext.CommitTransaction(sessionContext)
    }
    return nil
})