Pros of mgo

• Simpler API and easier to use for beginners
• Lightweight and has fewer dependencies
• Better performance in some scenarios, especially for read operations

Cons of mgo

• No longer actively maintained (last commit in 2018)
• Lacks support for newer MongoDB features and improvements
• May have compatibility issues with newer MongoDB versions

Code Comparison

mgo:

session, err := mgo.Dial("mongodb://localhost")
if err != nil {
    log.Fatal(err)
}
defer session.Close()

collection := session.DB("test").C("documents")
err = collection.Insert(bson.M{"name": "John", "age": 30})

mongo-go-driver:

client, err := mongo.Connect(context.TODO(), options.Client().ApplyURI("mongodb://localhost"))
if err != nil {
    log.Fatal(err)
}
defer client.Disconnect(context.TODO())

collection := client.Database("test").Collection("documents")
_, err = collection.InsertOne(context.TODO(), bson.M{"name": "John", "age": 30})

The mongo-go-driver provides a more modern and actively maintained solution with support for the latest MongoDB features. It offers better compatibility with newer MongoDB versions and follows a more idiomatic Go approach. However, it may have a steeper learning curve and slightly more verbose code compared to mgo.

mgo, while simpler to use, lacks ongoing support and may not be suitable for projects requiring the latest MongoDB features or long-term maintenance.

Pros of qmgo

• Simpler API with a more intuitive interface for common MongoDB operations
• Built-in support for hooks (before/after insert, update, etc.)
• Automatic index creation based on struct tags

Cons of qmgo

• Less comprehensive feature set compared to the official driver
• Smaller community and potentially less frequent updates
• May not support some advanced MongoDB features or edge cases

Code Comparison

mongo-go-driver:

client, _ := mongo.Connect(context.TODO(), options.Client().ApplyURI("mongodb://localhost:27017"))
collection := client.Database("test").Collection("users")
result, _ := collection.InsertOne(context.TODO(), bson.D{{"name", "John"}, {"age", 30}})

qmgo:

cli, _ := qmgo.NewClient(context.Background(), &qmgo.Config{Uri: "mongodb://localhost:27017"})
db := cli.Database("test")
coll := db.Collection("users")
_, _ = coll.InsertOne(context.Background(), bson.M{"name": "John", "age": 30})

The qmgo code is slightly more concise and follows a more intuitive structure for database and collection access. However, both libraries offer similar functionality for basic operations. The choice between them depends on specific project requirements and developer preferences.

Pros of Bun

• Supports multiple databases (PostgreSQL, MySQL, SQLite) vs. MongoDB-only
• Offers a more SQL-like query syntax, familiar to SQL developers
• Provides built-in query logging and performance monitoring

Cons of Bun

• Less mature and smaller community compared to Mongo Go Driver
• Limited to relational databases, not suitable for document-based NoSQL needs
• May have fewer advanced features specific to MongoDB operations

Code Comparison

Bun query example:

db.NewSelect().
    Model((*User)(nil)).
    Where("id = ?", 1).
    Scan(ctx)

Mongo Go Driver query example:

collection.FindOne(ctx, bson.M{"_id": 1}).
    Decode(&user)

Summary

Bun is a versatile ORM for relational databases with a SQL-like syntax, while Mongo Go Driver is specifically designed for MongoDB. Bun offers multi-database support and built-in monitoring, but has a smaller community. Mongo Go Driver provides deeper MongoDB-specific features and a larger ecosystem. The choice depends on your database requirements and preference for query syntax.

Pros of sqlx

• Simpler API for working with SQL databases, reducing boilerplate code
• Supports multiple SQL databases (MySQL, PostgreSQL, SQLite) with a unified interface
• Lightweight and easy to integrate into existing projects

Cons of sqlx

• Limited to SQL databases, not suitable for NoSQL solutions like MongoDB
• Lacks some advanced features and optimizations specific to MongoDB

Code Comparison

sqlx:

db, _ := sqlx.Connect("postgres", "user=foo dbname=bar sslmode=disable")
rows, _ := db.Queryx("SELECT * FROM users WHERE id = $1", 1)
var user User
for rows.Next() {
    rows.StructScan(&user)
}

mongo-go-driver:

client, _ := mongo.Connect(context.TODO(), options.Client().ApplyURI("mongodb://localhost:27017"))
collection := client.Database("testdb").Collection("users")
var user User
err := collection.FindOne(context.TODO(), bson.M{"id": 1}).Decode(&user)

Summary

sqlx is a lightweight extension to Go's database/sql package, offering a simpler API for working with SQL databases. It supports multiple SQL databases and is easy to integrate into existing projects. However, it's limited to SQL databases and lacks some MongoDB-specific features.

mongo-go-driver, on the other hand, is specifically designed for MongoDB, providing optimized performance and full support for MongoDB's features. It offers a more complex API but allows for greater flexibility when working with NoSQL data structures.

Choose sqlx for SQL database projects with simpler requirements, and mongo-go-driver for MongoDB-based applications or when advanced NoSQL features are needed.

Pros of GORM

• Supports multiple databases (MySQL, PostgreSQL, SQLite, SQL Server) vs. MongoDB-specific driver
• Provides a higher-level ORM abstraction with features like hooks, associations, and migrations
• More extensive documentation and larger community support

Cons of GORM

• May have slightly lower performance due to ORM overhead compared to direct driver usage
• Less flexibility for complex queries or MongoDB-specific features
• Steeper learning curve for developers new to ORM concepts

Code Comparison

GORM example:

db.Where("name = ?", "jinzhu").First(&user)
db.Create(&User{Name: "John", Age: 30})

mongo-go-driver example:

filter := bson.D{{"name", "jinzhu"}}
collection.FindOne(ctx, filter).Decode(&user)
collection.InsertOne(ctx, bson.D{{"name", "John"}, {"age", 30}})

Summary

GORM is a versatile ORM for multiple SQL databases, offering high-level abstractions and extensive features. The mongo-go-driver is a specialized MongoDB driver, providing direct access to MongoDB-specific functionality. Choose GORM for SQL databases and broader ORM features, or mongo-go-driver for MongoDB-specific projects requiring low-level control and optimal performance.