northwind-rest-api/backend/controllers/suppliers-controller.js

Local REST API Exposing 'Northwind Traders' Database.

const express = require("express");
const Supplier = require("../models/supplier");
const suppliersLogic = require("../business-logic/suppliers-logic");
const router = express.Router();

// Get all suppliers: 
router.get("/suppliers", async (request, response) => {
    try {
        // Logic: 
        const suppliers = await suppliersLogic.getAllSuppliers();

        // Success: 
        response.json(suppliers);
    }
    catch (err) {
       response.status(500).send(err.message);
    }
});

// Get one supplier: 
router.get("/suppliers/:id([0-9]+)", async (request, response) => {
    try {
        // Data: 
        const id = +request.params.id;

        // Logic: 
        const supplier = await suppliersLogic.getOneSupplier(id);
        if(!supplier) return response.status(404).send(`id ${id} not found.`);

        // Success: 
        response.json(supplier);
    }
    catch (err) {
        response.status(500).send(err.message);
    }
});

// Add supplier: 
router.post("/suppliers", async (request, response) => {
    try {
        // Data: 
        const supplier = new Supplier(request.body);

        // Validation: 
        const errors = supplier.validate();
        if (errors) return response.status(400).send(errors);

        // Logic: 
        const addedSupplier = await suppliersLogic.addSupplier(supplier, request.files?.image);

        // Success: 
        response.status(201).json(addedSupplier);
    }
    catch (err) {
        response.status(500).send(err.message);
    }
});

// Update supplier: 
router.put("/suppliers/:id([0-9]+)", async (request, response) => {
    try {
        // Data: 
        const id = +request.params.id;
        request.body.id = id;
        const supplier = new Supplier(request.body);

        // Validation: 
        const errors = supplier.validate();
        if (errors) return response.status(400).send(errors);

        // Logic: 
        const updatedSupplier = await suppliersLogic.updateSupplier(supplier, request.files?.image);
        if(!updatedSupplier) return response.status(404).send(`id ${id} not found.`);

        // Success: 
        response.json(updatedSupplier);
    }
    catch (err) {
        response.status(500).send(err.message);
    }
});

// Delete supplier: 
router.delete("/suppliers/:id([0-9]+)", async (request, response) => {
    try {
        // Data: 
        const id = +request.params.id;

        // Logic: 
        await suppliersLogic.deleteSupplier(id);

        // Success: 
        response.sendStatus(204);
    }
    catch (err) {
        response.status(500).send(err.message);
    }
});

module.exports = router;