MingoDB

MingoDB is a tiny implementation of some parts of the MongoDB shell. It is intended for learning MongoDB concepts without having to install it.

functionality

opening a database connection:

const mingodb = require("@karuga/mingodb");

const db = mingodb("data.json");

create

creating entries in a collection:

db.countries.insertOne({ name: "Argentina", continent: "South America" });
db.countries.insertOne({ name: "Brazil", continent: "South America" });

creating multiple entries at once:

db.countries.insertMany([
  { name: "Finland", continent: "Europe" },
  { name: "Greece", continent: "Europe" }
]);

read

reading an array of all entries:

const allCountries = db.countries.find({});

reading an array of some entries:

const europeanCountries = db.countries.find({ continent: "Europe" });

reading a single entry:

const greece = db.countries.findOne({ name: "Greece" });

update

replacing an entry:

db.countries.updateOne(
  { name: "Argentina" },
  { name: "Argentina", population: 44 }
);

changing an entry:

db.countries.updateOne({ name: "Brazil" }, { $set: { capital: "Brasilia" } });

delete

deleting an entry:

db.countries.deleteOne({ name: "Finland" });

deleting all entries:

db.countries.deleteMany({});