FASTREST

Prerequisite

• Oracle DB
• NRest Repository
• Oracleinstaclient
• NRestServer is running in development mode with nodemon

Usage

FASTREST - INTEGRATION

Pull the fsapi-manager repo in the existing node restserver. To initialize fsapi-manager, add the following in Nrest/index.js

const initFSAPI = require("./fsapi-manager");
(async () => {
    await initFSAPI({                                  
        "app":app,                                        // app  - Express App Object   
        "config": path.join(servicesdir, 'dbconfig.json') // Config file
        ,"fsdir":path.join(__dirname, "fs-apis")          // Path of the Folder within Node rest server where APIS will be created
        ,"logger":logger                                  // Logger object to log info
    });
})();

API Folder Struture

|__fs-apis  
      └── index.js      ---- Registering API    
            └── <apiname>/   
                  |── index.js --- Mandatory File 
                  ├── model.js
                  ├── controller.js       
                  ├── hooks.js
                  └── validation.js        

Registering API - fs-apis/index.js

const SampleAPI=require("./sample");

module.exports=(app)=>{
    const options={}
    fsutils.registerFSService("/sample",SampleAPI(app,options))
}

API Creation

File Description

• model.js [DB Schema Definition ]

  {
    "<model name>":{
      "COLUMN-1": {
          "type": "STRING/DATE/NUMBER",
          "iskey": true,   //primary key or not
          "sequence":""   //database sequence name if data is to be autopopulated from sequence.
      },
      "COLUMN-2": {
          "type": "STRING/DATE/NUMBER",
          "mandatory":"",
          "enumlist":["",""],
          "min-val":"",  // Mininum value in case of number 
          "max-val":"", // Maximum value in case of number 
          "maxlength":"" //Maximum length of string
  
      }
    }  
  }

• hooks.js
  Functions can be added to before/after events of CRUD operation. For this you need to add functions to the file hook.js.Each function will get 2 standard inputs, data,action

  module.exports={
    "<modelname>":{  
        "before":{
          "create":[function(data,action){}],
          "update":[],
          "delete":[],
          "read":[]
        },
        "after":{
          "create":[],
          "update":[],
          "delete":[],
          "read":[]
        }
    }
  }

• Controller.js
  In case any of the API CRUD operation is to be overwritten, the code will go in this file

  module.exports=function(app,opts){
    return {
            model: model, // model.js
            hooks:hooks,  //hooks.js
            create:function(args){
              // Overwrite Create
            },
            update:function(args){
              // Overwrite Update
            },
            delete:function(args){
              // Overwrite Delete
            },
            read:function(args){
              // Overwrite Read
            }
        }
  }

Final API Definition Structure

{
  "model" :{/* DB Schema Definition */},
  "hooks":{/* Before/After API Hooks */},
  "create":function(args){ 
    /*
     * In case the function is to be overwritten
    */
  },
  "update":function(args){ 
    /*
     * In case the function is to be overwritten
    */
  }
  "delete":function(args){ 
    /*
     * In case the function is to be overwritten
    */
  }
  "read":function(args){ 
    /*
     * In case the function is to be overwritten
    */
  }
}