Mineflayer fishing bot.

fish.js

var mineflayer = require('mineflayer'),
    repl = require("repl");

var FISHING_ROD = 346, RAW_FISH = 349;

var FISHING_INTERVAL = 200;

var bot = mineflayer.createBot({
  host: "<server>",
  username: "<username>"
});

// Caught fish, report!
//
bot.on('playerCollect', function(collector, collected){
  if(collector.username === '<username>'){
    console.log("Now have", bot.inventory.count(RAW_FISH) , "fish.");
  }
});

var fishing = function(){
  // No fishing rods left.
  if(bot.inventory.count(FISHING_ROD) <= 0){
    console.error("No fishing rods now.");
    return;

  // Fishing rod broken, switch to fishing rod then continue fishing.
  }else if(!( bot.heldItem && bot.heldItem.type === FISHING_ROD)){
    var rod = bot.inventory.findInventoryItem(FISHING_ROD);
    bot.equip(rod, 'hand', function(err){
      if(err) throw err;
      console.log(bot.inventory.count(FISHING_ROD) , "fishing rods left.");
    });
  }else{
    // Just fish.
    bot.activateItem();
  }
  setTimeout(fishing, FISHING_INTERVAL);
}

bot.on('spawn', fishing);