Introduction

Best way create Restful API in express and mongoose

install

const mongoose = require('mongoose')
require('mkres').setMongoose(mongoose)

Smart Select Attribute

const {parseSelect} = require('mkres')
const User = require('mongoose').model('User')

let {select,populate} = parseSelect(User, 'username,address{street,city,users},...')
let users = User.find({}).select(select).pupulate(populate)

console.logs('>> Users: ', users)

Select text format

• field_1,field_2,field_n : Select declared fields
• field_1,field_2,...: Select declared fields and all other fields in schema
• field_1,field_2{ child_field_1, child_field2} : Populate and select child_field
• field_1,field_2{child_field,...} : Populate and select child field and all other child fields of field_2
• "..." : Select all other fields

Populate and Deep Populate

We can populate by format:

field{} // Populate and select all child field 

or

field{f1,f2} // Populate and select declared child field

or

field{...,f1{}} // Populate and select all child field and populate child field 

We can deep populate:

field{f{ff{fff1,fff2},...}}

Spread "..." is select all other fields

Smart Find

const {parseFind} = require('mkres')
const User = require('mongoose').model('User')

let findQuery = parseFind('age <= 3 or (age >=5 and age <9)')
let users = User.find(findQuery)

console.logs('>> Users: ', users)

Ussage

Prepare model

User

const mongoose = require('mongoose')
const Schema = mongoose.Schema

let UserSchema = new Schema({
  username: {
    type: String
  },
  firstName: String,

  age: Number,

  address: {
    type: Schema.Types.ObjectId,
    ref: 'Address'
  },

  addresses: [
    {
      type: Schema.Types.ObjectId,
      ref: 'Address'
    }
  ]

}, {
  timestamps: {
    createdAt: true,
    updatedAt: true
  }
})

const User = mongoose.model('User', UserSchema)
module.exports = User

Address

const mongoose = require('mongoose')
const Schema = mongoose.Schema

let ModelSchema = new Schema({
  street: String,
  city: String
})

const Model = mongoose.model('Address', ModelSchema)
module.exports = Model

findById

const express = require('express')
const {makeFindById} = require('mkres')

const app = express()
const router = express.Router()

makeFindById({
    router: router,
    model: User
})

app.use('/users',router)

Use

GET /users/?select=-_id,username,address{city},address{street}

Params:

• select: select option, return only declared field
• extra: return extra declared field, ( use when you want populate some field but select all field)

find

const express = require('express')
const {makeFind} = require('mkres')

const app = express()
const router = express.Router()

makeFind({
    router: router,
    model: User,
    defaultLimit: 10 // for pagination
})

app.use('/users',router)

Use

GET /users/?limit=10&offset=0&page=1&select=username,address{city}&find=(age>=1 and age<=3>) or (age > 5) 

Params:

• limit: size of one page
• offset: offset of first item
• select: select option, return only declared field
• extra: return extra declared field, ( use when you want populate some field but select all field)
• find: simple condition for find item in mongo
• one : return one item

create

const {body} = require('express-validator/check')
const express = require('express')
const {makeCreate} = require('mkres')

const app = express()
const router = express.Router()

makeCreate({
    router: router,
    model: User,
    validators: [
        body('username').not().isEmpty().withMessage('Kkong duoc de trong')
    ]
})

app.use('/users',router)

Use

Post /users/?select=username,age,-_id

Params:

• select: select option, return only declared field
• extra: return extra declared field, ( use when you want populate some field but select all field)

update

const {body} = require('express-validator/check')
const express = require('express')
const {makeUpdate} = require('mkres')

const app = express()
const router = express.Router()

makeUpdate({
    router: router,
    model: User,
    validators: [
        body('username').not().isEmpty().withMessage('Kkong duoc de trong')
    ]
})

app.use('/users',router)

Use

PUT /users/:id?select=username,age,-_id

Params:

• select: select option, return only declared field
• extra: return extra declared field, ( use when you want populate some field but select all field)

delete

const express = require('express')
const {makeDelete} = require('mkres')

const app = express()
const router = express.Router()

makeDelete({
    router: router,
    model: User
})

app.use('/users',router)

Use

DELETE /users/:id

Development

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