index.js

"use strict";

const Firestore = require("@google-cloud/firestore");

const firestore = new Firestore();

const collection = firestore.collection("posts");

exports.create = (request, response) => {
  const body = request.body;

  collection
    .doc(`${body.title}`)
    .set({
      title: body.title,
      text: body.text
    })
    .then(() => {
      response.sendStatus(200);
    })
    .catch(() => {
      console.warn("Error creating!");
      response.sendStatus(400);
    });
};

exports.read = (request, response) => {
  collection
    .get()
    .then(function(querySnapshot) {
      querySnapshot.forEach(function(doc) {
        console.log(doc.id, " => ", doc.data());
      });
    })
    .then(() => {
      response.sendStatus(200);
    })
    .catch(() => {
      console.warn("Error reading!");
      response.sendStatus(400);
    });
};

exports.update = (request, response) => {
  const body = request.body;

  collection
    .doc(`${body.title}`)
    .set({
      text: body.text
    })
    .then(() => {
      response.sendStatus(200);
    })
    .catch(() => {
      console.warn("Error updating!");
      response.sendStatus(400);
    });
};

exports.delete = (request, response) => {
  const body = request.body;

  collection
    .doc(`${body.title}`)
    .delete()
    .then(() => {
      response.sendStatus(200);
    })
    .catch(() => {
      console.warn("Error deleting!");
      response.sendStatus(400);
    });
};