Too Many Parameters (ARCH5181)

Key go.quality.too-many-parameters · Severity warning · Category quality

Long parameter lists make call sites error-prone and unreadable. Group related fields into a struct.

Incorrect

func CreateUser(name, email, phone, city, zip, country string, age int, active bool) error {
    // ...
    return nil
}

Correct

type UserInput struct {
    Name, Email, Phone, City, Zip, Country string
    Age                                    int
    Active                                 bool
}

func CreateUser(in UserInput) error {
    // ...
    return nil
}

Fix

Collect related parameters into a single parameter struct, or inject dependencies instead.