End of Lesson (Fakerjs + fs Read and Write)

data/products.json

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+[{"_id":"f0beaf53-1a36-41c1-aa9c-6d9dd1e96980","name":"Gorgeous Gloves","description":"Andy shoes are designed to keeping in mind durability as well as trends, the most stylish range of shoes & sandals","brand":"Bahringer Inc","price":"$71.00","currency":"USD","inStock":false,"attributes":{"material":"Concrete","color":"orchid"}}]

helpers.js

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+//// Here will will write our File System Reading and Writing Functionality
+
+
+const fs = require("node:fs")
+
+
+// console.log("Node's File System: " , fs)
+// console.log("The Keys for the Node FS: ", Object.keys(fs))
+
+// console.log("The Function readFileSync: ", Object.keys(fs.readFileSync))
+// console.log("The Function writeFileSync: ", Object.keys(fs.writeFileSync))
+
+
+//// readFileSync( "pathToTheFile", "howToReadTheFile")
+// const path = "./data"
+// const fileName = "products.json"
+
+// const collection = fs.readFileSync( `${path}/${fileName}` , "utf-8" )
+
+//     // condition ? trueAction : falseAction  ~ Similar to if/else
+//     // if (condition){ trueAction } else { falseAction }
+//     const resultOfTernary = collection ? JSON.parse(collection) : [];
+
+//     console.log( "Data from JSON File We Are Reading: " , resultOfTernary )
+
+
+
+
+function readJSONFile(path, fileName){
+
+    const collection = fs.readFileSync( `${path}/${fileName}` , "utf-8" )
+
+    // is it an empty JSON File or NOT
+    return collection ? JSON.parse(collection) : [];
+
+}
+
+
+
+
+//// writeFileSync( "path" , data, { encoding: "utf-8" } )
+
+
+function writeJSONFile(path, fileName, data){
+
+    data = JSON.stringify(data)
+
+    fs.writeFileSync( `${path}/${fileName} `, data , { encoding: "utf-8" } )
+
+}
+
+
+module.exports = {
+    readJSONFile,
+    writeJSONFile
+}
+
+

index.js

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+// console.log(":)")
+
+
+
+const { createRandomProduct } = require("./products.js")
+
+const { writeJSONFile, readJSONFile } = require("./helpers.js")
+
+
+//// run: function to run our entire Command Line App
+
+function run(){
+
+    console.log("Welcome to Our Products App!✨\n\n\n\n")
+
+    // console.log( "Us Creating a Random Product (from the require): ", createRandomProduct() )
+
+
+    let productsData = readJSONFile( "./data" , "products.json" )
+    // if: file is empty -> Give us an empty array; Save it to our productsData variable
+    // else: give us the existing array (collection); Save it to our productsData variable
+
+    productsData.push( createRandomProduct() )
+
+
+    writeJSONFile( "./data" , "products.json", productsData )
+
+
+}
+
+run()
+
+
+//////// process object + process.argv