LEARN EXPRESS ROUTES - Codecademy

expressjs-routes-api.js

const express = require("express");
const app = express();

// Serves Express Yourself website
app.use(express.static("public"));

const {
  getElementById,
  getIndexById,
  updateElement,
  seedElements,
  createElement,
} = require("./utils");

const expressions = [];
seedElements(expressions, "expressions");
const animals = [];
seedElements(animals, "animals");

const PORT = process.env.PORT || 4001;

app.get("/expressions", (req, res, next) => {
  res.send(expressions);
});

app.get("/expressions/:id", (req, res, next) => {
  const foundExpression = getElementById(req.params.id, expressions);
  if (foundExpression) {
    res.send(foundExpression);
  } else {
    res.status(404).send();
  }
});

app.put("/expressions/:id", (req, res, next) => {
  const expressionIndex = getIndexById(req.params.id, expressions);
  if (expressionIndex !== -1) {
    updateElement(req.params.id, req.query, expressions);
    res.send(expressions[expressionIndex]);
  } else {
    res.status(404).send();
  }
});

app.post("/expressions", (req, res, next) => {
  const receivedExpression = createElement("expressions", req.query);
  if (receivedExpression) {
    expressions.push(receivedExpression);
    res.status(201).send(receivedExpression);
  } else {
    res.status(400).send();
  }
});

app.delete("/expressions/:id", (req, res, next) => {
  const expressionIndex = getIndexById(req.params.id, expressions);
  if (expressionIndex !== -1) {
    expressions.splice(expressionIndex, 1);
    res.status(204).send();
  } else {
    res.status(404).send();
  }
});

app.get("/animals", (req, res, next) => {
  res.send(animals);
});
app.get("/animals/:id", (req, res, next) => {
  const animal = getElementById(req.params.id, animals);
  if (animal) {
    res.send(animal);
  } else {
    res.status(404).send("Not found");
  }
});
app.post('/animals', (req, res, next) => {
  const resAnimal = createElement('animals', req.query);

  if (resAnimal) {
    animals.push(resAnimal);
    res.status(201).send(resAnimal);
  } else {
    res.status(400).send();
  }
});
app.put('/animals/:id', (req, res, next) => {
  const animalIndex = getIndexById(req.params.id, animals);
  if (animalIndex !== -1) {
    updateElement(req.params.id, req.query, animals);
    res.send(animals[animalIndex]);
  } else {
    res.status(404).send();
  }
});

app.delete("/animals/:id", (req, res, next) => {
  const animalIndex = getIndexById(req.params.id, animals);
  if (animalIndex !== -1) {
    animals.splice(animalIndex, 1);
    res.status(204).send();
  } else {
    res.status(404).send('Not found');
  }
});

app.listen(PORT, () => {
  console.log(`Listening on port ${PORT}`);
});