arcah

arcah

WIP

For now arcah api is in development and will change. Also, query engine is not yet stable and tested enough to run.

What is arcah?

Have you ever written DTOs? In golang it's tedious to write functions like ApplyMutation for each DTO, consider following example:

// Example entity
type User struct {
    Username string
    Password string // for sake of simplicity, not hashed; do not run in prod!
}

type ChangeUsernameMutation struct{
    Username string
}
func(m *ChangeUsernameMutation) Apply(u *User) (err error) {
    // any validation here or outside of apply
    u.Username = m.Username
    return
}

// Change password and maybe others there

Arcah is tool, which does:

1. Query structures - structures, which are translated into DB queries
2. Mutator structures - structures, which are translated into DB mutations or applied directly to entity

Arcah does not require any code, instead some metadata passed in tags is enough.