Mufasa NPM | npm.io

Mufasa (Monode's Fullstack Store)

An easy way to connect your database to your UI. (AKA a strongly typed, local-first ORM)

Features:

Fully Reactive
Supports both documents and files
Changes made offline will be synced later
Provides good defaults but is highly customizable
Should work with any front-end, back-end, or platform (only tested with Solid JS, Firebase, and Capacitor JS so far)

Quick Start

Set Up Mufasa

Install Mufasa via npm i mufasa. To update to the latest version run npm i mufasa@latest.

Import and initialize Mufasa anywhere in your app.

import { initializeMufasa } from "mufasa";
import { solidPersister } from "mufasa/solid-js";
import { capacitorPersister } from "mufasa/capacitor";
import { firebasePersister } from "mufasa/firebase";

export const mfs = initializeMufasa({
  sessionPersister: solidPersister(),
  // Device and cloud persisters are optional.
  devicePersister: capacitorPersister(),
  cloudPersister: firebasePersister(),
});

Define Document Types

Define your document types in any file.

import { prop, list, formula } from "mufasa";

export class Course extends mfs.Doc(`Course`) {
  // Use `prop(TypeClass)` to specify a property that will be saved to the database
  name = prop(String);

  // An initial value can be specified
  description = prop(String, ``);

  // Props can reference document types
  teacher = prop(Teacher);

  // Use `[TypeClass, null]` to define a nullable prop
  teachersAssistant = prop([Student, null], null);

  // Use `list(DocClass)` to define a document list
  readonly students = list(Student);
}

export class Teacher extends mfs.Doc(`Teacher`) {
  firstName = prop(String);
  lastName = prop(String);
  // Use formula to make reactive, read-only props
  readonly fullName = formula(() => `${this.firstName} ${this.lastName}`);

  // `list(DocClass, "propName") can be used to define one-to-many lists
  readonly courses = list(Course, `teacher`);
}

export class Student extends mfs.Doc(`Student`) {
  firstName = prop(String);
  lastName = prop(String);
  readonly fullName = formula(() => `${this.firstName} ${this.lastName}`);

  // `list(DocClass, "propName") to define many-to-many lists
  readonly courses = list(Course, `students`);
}

Use Documents in your UI

import { Teacher } from "./Teacher";
import { Course } from "./Course";
import { For } from "solid-js";

function TeacherUI(teacher: Teacher) {
  return (
    <div>
      {/* Will automatically update when this device or any other device renames the teacher. */}
      <h1>{teacher.fullName}</h1>
      <button
        onClick={() => {
          // Documents must be created using the `create` method
          Course.create({
            name: `Math 101`,
            teacher: teacher,
          });
        }}
      >
        Add Course
      </button>
      <button
        onClick={() => {
          /* Simply assign to a prop and the update will be sent to the database
           * and then to any other mobile devices that are listening. */
          student.lastName = ``;
        }}
      >
        Change Last Name
      </button>
      <For each={teacher.courses}>{(course) => <li>{course.name}</li>}</For>
    </div>
  );
}

See More

That should be enough to get you something useful. For more take a look at the "Deep Dive" section.

Deep Dive

mosa-js uuid

@everything-registry/sub-chunk-2215

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