Page Contents

Installation

NPM:

npm install farmbot

Vanilla JS:

<script src="https://cdn.jsdelivr.net/npm/farmbot@latest/dist/farmbot_single_file.js"></script>
<script>
  var farmbot123 = new fbjs.Farmbot({ token: "foo.bar.baz" });
</script>

Supported environments

Browsers Works on all modern browsers that were released in the last 12 months.
NodeJS Independent developers have reported success when using FarmBotJS in a Node environment, but we do not test against Node based setups, nor do we (FarmBot, Inc) use FarmBotJS in a production Node environment. Issue reports related to NodeJS are highly appreciated.

Running the test suite

npm run test

Login with an API Token

Login using your API token from the FarmBot Web App.

import { Farmbot } from "farmbot";

var SUPER_SECRET_TOKEN = "eyJ0eXAiOiJKV1...4Ry7CiA";

let bot = new Farmbot({ token: SUPER_SECRET_TOKEN });

bot
  .connect()
  .then(function () {
    return bot.moveRelative({ x: 1, y: 2, z: 3, speed: 100 });
  });

Sending commands to a FarmBot object

bot
  .connect()
  .then(function(bot){
    console.log("Bot online!");
    return bot.emergencyStop(); // You can chain commands.
  })
  .then(function(bot){
    console.log("Bot has stopped!");
  })
  .catch(function(error) {
    console.log("Something went wrong :(");
  });

Basic RPC commands

Call RPC commands using the corresponding method on bot. All RPC commands return a promise.

bot
  .home({ axis: "x", speed: 800 })
  .then(function (ack) {
    console.log("X Axis is now at 0.");
  })
  .catch(function (err) {
    console.log("Failed to bring X axis home.");
  })

Currently supported commands

See the annotated type definitions for available methods and properties.

Events

  var bot = Farmbot({ token: '---'});
  bot.on("eventName", function(data, eventName) {
    console.log("I just got an" + eventName + " event!");
    console.log("This is the payload: " + data);
  })
   // "I just got an eventName event!"
   // "This is the payload: any javascript object or primitive"
  bot.emit("eventName", "any javascript object or primitive");
  var eventHandlers = bot.event("eventName");
   // [function(){...}]

Routine events

  • "logs": The bot will send logs to this channel.
  • "offline": Connection lost. Note: FarmBotJS will try to auto-reconnect.
  • "online": Client is connected and subscribed to bot.
  • "sent": Triggered when the application begins sending a message.
  • "status_v8": Most important. When the REMOTE device state changes (eg: “x” goes from 0 to 100), the bot will emit this event.
  • "legacy_status": Formerly "status". Deprecated and scheduled for removal in 2019. Do not use in new applications.
  • "sync": A resource on the API has changed.

Special events

  • <random uuid>: RPC commands have UUIDs when they leave the browser. When the bot responds to that message, FarmBotJS will emit an event named after the request’s UUID. Mostly for internal use.
  • "malformed": When the bot gets a bad RPC command, it will notify you via this channel.
  • *: Catch all events (for debugging).