Generator-loki NPM

Loki - Microservice Generator

is a Yeoman generator that creates a SpringBoot Microservice application with JWT / Keycloak SSO authentication.

Entity Generation

We can create an entity with different types of mappings (OneToMany, ManyToOne, OneToOne, ManyToMany). We can create an entities whith different databases like RDBMS, MongoDB, Casandra etc.

Quick install guide

You need to have Node.js installed.

$ npm install -g yo
$ npm install -g generator-loki
$ yo loki

Running

Creating an Application

$ yo loki

Creating Entities

$ yo loki:entity <metadata location>

Ex: $ yo loki:entity ../metadata/metadata.json

Sample Metadata for entity creation

{
  "entityDetails": [
    {
      "entityName": "User",
      "attributes": [
        {
          "name": "userName",
          "type": "String",
          "unique": true,
          "nullable": false,
          "minLength": 6,
          "maxLength": 30,
          "regex": {
            "pattern": "[A-Za-z0-9]+",
            "errorMessage": "Username should be alphanumeric"
          }
        },
        {
          "name": "password",
          "type": "String",
          "unique": false,
          "nullable": false
        },
        {
          "name": "email",
          "type": "String",
          "unique": true,
          "nullable": false
        },
        {
          "name": "age",
          "type": "Integer",
          "unique": false,
          "nullable": false
        }
      ],
      "mappings": [
        {
          "type": "OneToMany",
          "entity": "Role",
          "placeholder": "roles"
        }
      ]
    },
    {
      "entityName": "Role",
      "attributes": [
        {
          "name": "name",
          "type": "String",
          "unique": true,
          "nullable": false,
          "minLength": 4,
          "maxLength": 15,
          "regex": {
            "pattern": "[A-Za-z0-9]+",
            "errorMessage": "RoleName should be alphanumeric"
          }
        }
      ]
    }
  ]
}