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

Local REST API Exposing Northwind Database.

const express = require("express");
const fs = require("fs");
const locations = require("../helpers/locations");
const router = express.Router();

// Get product image:
router.get("/products/images/:imageName", (request, response) => {
    try {
        // Data: 
        const imageName = request.params.imageName;

        // Logic: 
        let imageFile = locations.getProductImageFile(imageName);
        if(!fs.existsSync(imageFile)) imageFile = locations.notFoundImageFile;
        
        // Success: 
        response.sendFile(imageFile);
    }
    catch (err) {
        response.status(500).send(err.message);
    }
});

// Get employee image:
router.get("/employees/images/:imageName", (request, response) => {
    try {
        // Data: 
        const imageName = request.params.imageName;

        // Logic: 
        let imageFile = locations.getEmployeeImageFile(imageName);
        if(!fs.existsSync(imageFile)) imageFile = locations.notFoundImageFile;
        
        // Success: 
        response.sendFile(imageFile);
    }
    catch (err) {
        response.status(500).send(err.message);
    }
});

// Get supplier image:
router.get("/suppliers/images/:imageName", (request, response) => {
    try {
        // Data: 
        const imageName = request.params.imageName;

        // Logic: 
        let imageFile = locations.getSupplierImageFile(imageName);
        if(!fs.existsSync(imageFile)) imageFile = locations.notFoundImageFile;
        
        // Success: 
        response.sendFile(imageFile);
    }
    catch (err) {
        response.status(500).send(err.message);
    }
});

// Get category image:
router.get("/categories/images/:imageName", (request, response) => {
    try {
        // Data: 
        const imageName = request.params.imageName;

        // Logic: 
        let imageFile = locations.getCategoryImageFile(imageName);
        if(!fs.existsSync(imageFile)) imageFile = locations.notFoundImageFile;
        
        // Success: 
        response.sendFile(imageFile);
    }
    catch (err) {
        response.status(500).send(err.message);
    }
});

module.exports = router;