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Introduction

Rex is schema-first and type-safe ORM.

Declarative Schema​

rex.hcl
client "db" {
  // define generators for client
  // support multiple generators
  generator "rex-client-go" {}
  generator "rex-client-java" {}

  // define database connection
  // support multiple environments through `REX_ENV`
  adapter = "postgresql"
  config "development" {
    database = "blog_development"
    user     = "postgres"
    password = "postgres"
  }
  config "production" {
    url = env("DATABASE_URL")
  }

  // define database schema with models
  model "Post" {
    column "title" {
      type = string
    }
    column "content" {
      type = text
    }
  }
}

Database Migration​

Client Generation​

rex g client db

Client API​

client := db.NewClient()
post, err := client.CreatePost(client.ChangePost().setTitle("post title"))
posts, err := client.QueryPost().All()