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app.js
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app.js
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const Joi = require("joi");
const express = require("express");
const app = express();
app.use(express.json());
const courses = [
{ id: 1, name: "course1" },
{ id: 2, name: "course2" },
{ id: 3, name: "course3" },
];
app.get("/", (req, res) => {
res.send(courses);
});
// ////////////////GET REQUEST//////////////////////////////
app.get("/apis/courses/:id", (req, res) => {
const course = courses.find((c) => c.id === parseInt(req.params.id));
if (!course) res.status(404).send("Course with the given ID not found");
res.send(course);
});
// ////////////////////POST REQUEST////////////////////////////////////
app.post("/apis/courses/", (req, res) => {
// const result = validateCourse(req.body);
// object destruture
const { error } = validateCourse(req.body);
if (error) return res.status(400).send(error.details[0].message);
const course = {
id: courses.length + 1,
name: req.body.name,
};
courses.push(course);
res.send(course);
});
// ///////////////////////////GET REQUEST////////////////////////////////////
app.put("/apis/courses/:id", (req, res) => {
const course = courses.find((c) => c.id === parseInt(req.params.id));
if (!course) return res.status(404).send("course with given ID not found");
// const schema = {
// name : Joi.string().min(3).required()
// };
// const result = schema.validate(req.body);
// if(result.error){
// res.status(400).send(result.error.details[0].message);
// return;
// }
const { error } = validateCourse(req.body);
if (error) return res.status(400).send(error.details[0].message);
course.name = req.body.name;
res.send(course);
});
// ////////////////////////////DELETE REQUEST///////////////////////////////////
app.delete("/apis/courses/:id", (req, res) => {
const course = courses.find((c) => c.id === parseInt(req.params.id));
if (!course) return res.status(400).send("course with given ID not found");
const index = courses.indexOf(course);
courses.splice(index, 1);
res.send(course);
});
// //////////////VALIDATION FUNCTION/////////////////
function validateCourse(course) {
const schema = Joi.object({
name: Joi.string().min(3).required(),
});
return schema.validate(course);
}
const port = process.env.PORT || 5500;
app.listen(port, () => {
console.log(`listening on port ${port}`);
});