New-scratch3-api NPM

new-scratch3-api

A fixed version of ErrorGamer2000's scratch3-api (that is maintained)

A remake of trumank's scratch-api optimized for scratch 3.0. It not only adds to the api, but is also composed mostly of promises to prevent callback hell. So, instead of

const Scratch = require("scratch-api");

Scratch.UserSession.create("<username>", "<password>", function (err, user) {
  user.cloudSession("<project>", function (err, cloud) {
    cloud.on("set", function (name, value) {
      console.log(`${name} was set to ${value}`);
    });
  });
});

you can do

const Scratch = require("scratch3-api");

async function main() {
  let session = await Scratch.UserSession.create("<username>", "<password>");
  let cloud = await session.cloudSession("<project>");
  cloud.on("set", function (name, value) {
    console.log(`${name} was set to ${value}`);
  });
}

main();

which is a lot easier to read. If, for some reason, you like callback hell, you can just use .then().

const Scratch = require("scratch3-api");

Scratch.UserSession.create("<username>", "<password>").then(function (session) {
  session.cloudSession("<project>").then(function (cloud) {
    cloud.on("set", function (name, value) {
      console.log(`${name} was set to ${value}`);
    });
  });
});

Installation

Install with npm:

npm install scratch3-api

Or by cloning this repository:

git clone https://github.com/ErrorGamer2000/scratch3-api.git

API Documentation

Scratch

UserSession
- Events
- static create
- constructor
- load
- prompt (Deprecated)
- verify
- comment
- projects
  - get
  - getUserProjects
- cloudSession
CloudSession
- Events
- static create
- constructor
- connect
- end
- get
- set
- numerify
- stringify
- name
Other APIs
- Project
- Sprite

UserSession

Events

None.

async static create(username, password)

Creates and loads a new UserSession with the given username and password.

username - The Scratch account username (not case sensitive). Optional. If not provided user will be prompted.
password - The Scratch account password. Optional. If not provided user will be prompted.
returns a loaded Scratch.Usersession.

Note that

//Async
let session = await Scratch.UserSession.create("<username", "<password>");

is exactly the same as

//Async
let session = new Scratch.UserSession();
await session.load("<username", "<password>");

constructor()

Creates a new, unloaded, Scratch.Usersession.

returns an unloaded Scratch.Usersession.

async load(username, password)

Loads a UserSession with the given username and password.

username - The Scratch account username (not case sensitive). Optional. If not provided user will be prompted.
password - The Scratch account password. Optional. If not provided user will be prompted.
returns none.

async prompt() (Deprecated)

Prompts the user for their username and password.

returns an unloaded Scratch.Usersession.

This feature will lose support soon, instead use .load with no parameters.

async verify()

Verifies the current session.

returns true of false

async comments(options)

Adds a comment on the specified project, user, or studio.

options - An object containing the comments options.
- project, user, or studio - The project, user, or studio to comment on. User must be a username and the others must be ids.
- parent - The comment id to reply to. Optional.
- replyto - The user id to address (@username ...). Optional.
- content - The text of the comment to post.
returns an https request.

projects

async get(id) Gets a project with the given id.
- id - The id of the project to get.
- returns Project. (see Other APIs)

async getUserProjects(limit) Gets up to 40 projects of the currently logged in user.
- limit - A number from 1 to 40. The maximum amount of the user's projects to get.
- returns an Array of Projects.

async cloudSession(project)

Creates and connects a new CloudSession with the UserSession.

project - The id of the project to connect to. Must be valid.
returns a connected CloudSession

CloudSession

extends EventEmitter

Events

reset - The WebSocket connection was reset.
set - A cloud variable in the project was set.

static create(usersession, project)

Creates and connects a new CloudSession with the given UserSession.

usersession - Required. The UserSession to create the CloudSession with.
project - The id of the project to connect to. Must be valid.
returns a connected CloudSession.

constructor(usersession, project)

Creates a new, unconnected CloudSession with the given UserSession.

usersession - Required. The UserSession to create the CloudSession with.
project - The id of the project to connect to. Must be valid.
returns an unconnected CloudSession.

connect()

Connects an unconnected CloudSession.

end()

Ends the current connection.

get(variable)

Gets the value of a cloud variable.

variable - The name of the variable to get (including the ☁, see name).
returns a String containing the value of the variable.

set(variable, value)

Sets the value of a cloud variable.

variable - The name of the variable to get (including the ☁, see name).
value - The value to set the variable to. Can only be a number or a string that is a valid number.

numerify(string)

Turns the string input into a number, allowing you to send any value across the cloud variables. The compatible scratch engine is here

string - The string to convert to an number.
returns a Number representing the numerified string.

stringify(number)

Turns the encoded number input and converts it back to a string.

number - The number to convert back to a string.
returns a String matching the origionally encoded string.

name(variable)

Automatically adds the ☁ to the variable name.

name - The name of the variable (without ☁)
returns ☁ + variable.

Other APIs

Project

The Project class reformats a response from Scratch's project api into an easy-to-use object.

Each Project instance will be formatted like this:

stage - A Sprite instance describing the project's stage.
variables - An object containing all of the variables in the project. To retreive the names of these variables, use Object.keys.
- id - A String containing the variable's id. This is not really of much use unless you are working with Scratch Blocks.
- spriteOnly - A Boolean. True if the variable has 'this sprite only' checked.
- sprite - A String with the variable's parent sprite. null if spriteOnly is false.
- value - A String or Array (if the variable is a list) containing the value of the variables. In the case of cloud variables this may not be accurate as this value is only saved when a project is saved.
- type - A String containing the type of the variable, either variable or list.
- isCloud - A Boolean. True if the variable is a cloud variable.
spritenames - An Array of Strings containing the names of all of the sprites in the project.
sprites - An Array of Sprites.

Sprite

The Sprite class reformats the sprite objects in Scratch's project api's responses.

Each Sprite instance will be formatted like this:

variables - See Project - variables.
lists - See Project - variables.
broadcasts - An Array of Strings containing each of the project's broadcast messages.
blocks - An Array containing the blocks in the Sprite's workspace.
comments - An Array containing the comments in the Sprite's workspace.
isStage - A Boolean. True if the Sprite is the stage.
name - A String containing the Sprite's name.
costumes - An array of the Sprite's costumes.
sounds - An array of the Sprite's sounds.
volume - A Number containing the Sprite's volume.
layer - A Number containing the Sprite's layer in the project.

scratch cloud scratch-api server api

prompt stringstonumbers ws

3.0.4

4 years ago

3.0.3

4 years ago

3.0.0

4 years ago