API introduction
How to create a node.js project
In the terminal:
npm install express --save
Exercises 1
//This is boilerplate code to write a simple web-server
const http = require("http");
http.createServer((req,res)=>{
res.write("Hello Everyone");
res.end();
}).listen(8000);In the following exercises you can create a new script for each exercise
A)
Create a basic API that will output "Hello World" when a user sends a request to the API.
B)
Create a basic API that will generate a random number between 1-20 and output the number to the user.
C)
Create a basic API that will generate a random number between 1-4 and output "spring", "summer","fall","winter" each according to the number 1-4.
D)
Create a basic API that will generate 10 random numbers between 1-20 and and output the average to the user.
E)
Using the getday function build a simple API that will provide the user with a string output of what day it is today
E.2) (Advanced - optional)
Change the API such that the API outputs YES if it is friday and NO if it is not friday. Like the service www.erdetfredag.dk
Exercises 2
//This is the boilerplate code to write a simple web-server with the express.js framework
const express = require('express')
const app = express()
const port = 3000
app.get('/', (req, res) => {
res.send('Hello World!')
})
app.listen(port, () => {
console.log(`Example app listening on port ${port}`)
})Create a .json file with the data underneath and use it as a data-foundation (meaning the .json file represents a database)
Each exercise should be written as an end-point
Exercises 2
A) /Hello
Create an end point that displays a friendly greeting to the user of the API
B) /first
Create an end point that displays the first json object of the data array (data[])
**C) /products **
Create an endpoint that displays a list of all products.
D) /products/:id
Create an endpoint that displays a specific product by its ID.
If a product cannot be found, the API will respond with a 404 status code and a message that informs the user
E) /products/unavailable
Create an endpoint that displays all out of stock products
F) products/category/:category
Create an endpoint that displays all products from a single category.
G) products/:id/availability
Create an endpoint that displays the availability of a product by its ID
Advanced (Optional)
H) products/:min/:max
Create an endpoint that displays all products within the minimum - maximum price range
I) products/sortprice
Create an endpoint that displays all products of a category sorted by price
J) products/material/unique
Create an endpoint that displays a list of all unique material
Data
[
{
"id": 1,
"productName": "laptop",
"price": 999.99,
"isUsed": false,
"productCategories": ["electronics"],
"weight": 2.5,
"stock": 50,
"material": "plastic"
},
{
"id": 2,
"productName": "smartphone",
"price": 499.99,
"isUsed": true,
"productCategories": ["electronics"],
"weight": 0.3,
"stock": 100,
"material": "metal"
},
{
"id": 3,
"productName": "headphones",
"price": 79.99,
"isUsed": false,
"productCategories": ["electronics"],
"weight": 0.2,
"stock": 75,
"material": "plastic"
},
{
"id": 4,
"productName": "desk chair",
"price": 149.99,
"isUsed": true,
"productCategories": ["furniture"],
"weight": 8.0,
"stock": 30,
"material": "leather"
},
{
"id": 5,
"productName": "coffee maker",
"price": 49.99,
"isUsed": false,
"productCategories": ["appliances"],
"weight": 1.5,
"stock": 0,
"material": "stainless steel"
},
{
"id": 6,
"productName": "running shoes",
"price": 79.99,
"isUsed": false,
"productCategories": ["clothing", "footwear"],
"weight": 1.0,
"stock": 80,
"material": "mesh"
},
{
"id": 7,
"productName": "backpack",
"price": 29.99,
"isUsed": true,
"productCategories": ["accessories"],
"weight": 0.8,
"stock": 50,
"material": "nylon"
},
{
"id": 8,
"productName": "led tv",
"price": 799.99,
"isUsed": false,
"productCategories": ["electronics"],
"weight": 15.0,
"stock": 20,
"material": "glass"
},
{
"id": 9,
"productName": "yoga mat",
"price": 19.99,
"isUsed": true,
"productCategories": ["fitness"],
"weight": 0.5,
"stock": 100,
"material": "pvc"
},
{
"id": 10,
"productName": "gaming mouse",
"price": 49.99,
"isUsed": false,
"productCategories": ["gaming", "electronics"],
"weight": 0.1,
"stock": 40,
"material": "plastic"
},
{
"id": 11,
"productName": "desk lamp",
"price": 24.99,
"isUsed": false,
"productCategories": ["home decor"],
"weight": 0.5,
"stock": 60,
"material": "metal"
},
{
"id": 12,
"productName": "cookware set",
"price": 129.99,
"isUsed": true,
"productCategories": ["kitchen"],
"weight": 10.0,
"stock": 25,
"material": "stainless steel"
},
{
"id": 13,
"productName": "bluetooth speaker",
"price": 69.99,
"isUsed": false,
"productCategories": ["electronics", "accessories"],
"weight": 0.7,
"stock": 45,
"material": "plastic"
},
{
"id": 14,
"productName": "hiking boots",
"price": 89.99,
"isUsed": true,
"productCategories": ["footwear", "outdoor"],
"weight": 1.2,
"stock": 35,
"material": "leather"
},
{
"id": 15,
"productName": "portable charger",
"price": 39.99,
"isUsed": false,
"productCategories": ["accessories", "electronics"],
"weight": 0.3,
"stock": 70,
"material": "plastic"
},
{
"id": 16,
"productName": "desk organizer",
"price": 19.99,
"isUsed": false,
"productCategories": ["office"],
"weight": 0.5,
"stock": 50,
"material": "wood"
},
{
"id": 17,
"productName": "vacuum cleaner",
"price": 149.99,
"isUsed": true,
"productCategories": ["appliances"],
"weight": 5.0,
"stock": 20,
"material": "plastic"
},
{
"id": 18,
"productName": "tennis racket",
"price": 59.99,
"isUsed": false,
"productCategories": ["sports"],
"weight": 0.7,
"stock": 30,
"material": "graphite"
},
{
"id": 19,
"productName": "digital camera",
"price": 299.99,
"isUsed": true,
"productCategories": ["photography", "electronics"],
"weight": 1.0,
"stock": 15,
"material": "plastic"
},
{
"id": 20,
"productName": "toaster",
"price": 29.99,
"isUsed": false,
"productCategories": ["kitchen"],
"weight": 1.0,
"stock": 40,
"material": "metal"
},
{
"id": 21,
"productName": "sunglasses",
"price": 39.99,
"isUsed": false,
"productCategories": ["fashion", "accessories"],
"weight": 0.1,
"stock": 50,
"material": "plastic"
},
{
"id": 22,
"productName": "fitness tracker",
"price": 79.99,
"isUsed": true,
"productCategories": ["fitness", "electronics"],
"weight": 0.2,
"stock": 60,
"material": "rubber"
},
{
"id": 23,
"productName": "cooking utensils",
"price": 14.99,
"isUsed": false,
"productCategories": ["kitchen"],
"weight": 0.3,
"stock": 80,
"material": "wood"
},
{
"id": 24,
"productName": "dumbbell set",
"price": 49.99,
"isUsed": true,
"productCategories": ["fitness"],
"weight": 15.0,
"stock": 0,
"material": "metal"
},
{
"id": 25,
"productName": "candle holder",
"price": 9.99,
"isUsed": false,
"productCategories": ["home decor"],
"weight": 0.2,
"stock": 90,
"material": "glass"
},
{
"id": 26,
"productName": "digital watch",
"price": 59.99,
"isUsed": false,
"productCategories": ["accessories"],
"weight": 0.1,
"stock": 70,
"material": "metal"
},
{
"id": 27,
"productName": "back massager",
"price": 29.99,
"isUsed": true,
"productCategories": ["health", "electronics"],
"weight": 1.5,
"stock": 10,
"material": "plastic"
},
{
"id": 28,
"productName": "wall clock",
"price": 19.99,
"isUsed": false,
"productCategories": ["home decor"],
"weight": 0.5,
"stock": 40,
"material": "metal"
},
{
"id": 29,
"productName": "external hard drive",
"price": 89.99,
"isUsed": false,
"productCategories": ["electronics"],
"weight": 0.3,
"stock": 30,
"material": "plastic"
},
{
"id": 30,
"productName": "sleeping bag",
"price": 49.99,
"isUsed": true,
"productCategories": ["outdoor"],
"weight": 2.0,
"stock": 5,
"material": "nylon"
},
{
"id": 31,
"productName": "wireless keyboard",
"price": 39.99,
"isUsed": false,
"productCategories": ["electronics"],
"weight": 0.8,
"stock": 15,
"material": "plastic"
},
{
"id": 32,
"productName": "plant pot",
"price": 14.99,
"isUsed": false,
"productCategories": ["home decor"],
"weight": 1.0,
"stock": 25,
"material": "ceramic"
},
{
"id": 33,
"productName": "tea kettle",
"price": 29.99,
"isUsed": false,
"productCategories": ["kitchen"],
"weight": 1.2,
"stock": 60,
"material": "stainless steel"
},
{
"id": 34,
"productName": "travel pillow",
"price": 19.99,
"isUsed": false,
"productCategories": ["travel"],
"weight": 0.5,
"stock": 20,
"material": "memory foam"
},
{
"id": 35,
"productName": "electric toothbrush",
"price": 59.99,
"isUsed": true,
"productCategories": ["health"],
"weight": 0.2,
"stock": 0,
"material": "plastic"
},
{
"id": 36,
"productName": "dining table",
"price": 299.99,
"isUsed": false,
"productCategories": ["furniture"],
"weight": 30.0,
"stock": 10,
"material": "wood"
},
{
"id": 37,
"productName": "sunscreen",
"price": 14.99,
"isUsed": false,
"productCategories": ["health", "beauty"],
"weight": 0.3,
"stock": 50,
"material": "cream"
},
{
"id": 38,
"productName": "rain jacket",
"price": 79.99,
"isUsed": true,
"productCategories": ["clothing", "outdoor"],
"weight": 0.7,
"stock": 30,
"material": "polyester"
},
{
"id": 39,
"productName": "frying pan",
"price": 24.99,
"isUsed": false,
"productCategories": ["kitchen"],
"weight": 1.5,
"stock": 15,
"material": "non-stick coated"
},
{
"id": 40,
"productName": "wireless earbuds",
"price": 129.99,
"isUsed": false,
"productCategories": ["electronics", "accessories"],
"weight": 0.1,
"stock": 0,
"material": "plastic"
}
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