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Twitter bot bootstrap

This is a bootstrap for setting up a Twitter bot with Node.js using the twit library, the bot will favorite and retweet what you specify when configuring it, it will also reply to followers with a selection of canned responses.

As a primer for this there are the great posts by @amanhimself on making your own twitter bot and this is an expansion on that with further detail on configuration on Heroku

What you'll need

  • Twitter account [Duh!]
  • Development environment with Node.js and NPM
    • c9 account
    • Node.js
    • NPM
  • Heroku account

Setup twitter

Set up an application on the Twitter account you want to favorite and retweet from via: https://apps.twitter.com/app/new

As an example I'll configure the old @DroidScott twitter account I have so you can follow along.

Straight forward enough for the twitter application, just make sure you add your phone number to your Twitter account before clicking the Create your Twitter application button.

You should now be in the 'Application Management' section where you will need to take a note of your keys, you should have your 'Consumer Key (API Key)' and 'Consumer Secret (API Secret)' already available you'll need to scroll to the bottom of the page and click the Create my access token to get the 'Access Token' and 'Access Token Secret' take note of all four of them you'll need them when setting up the bot.

Setup development environment

For this I'm just going to say use Cloud9 as you can be up and running in minutes with one of the pre made Node.js environments.

Set up the bot

In the project tree delete the example project files of client, package.json, README.md and server.js you'll not need them, you can leve them there if you desire.

In your new Node.js c9 environment go to the terminal and enter:

$ git clone https://github.com/spences10/twitter-bot-bootstrap

Project structure

The environment project tree should look something like this.

Node dependencies

Before configuring the bot we'll need to install some dependencies, from the terminal enter:

$ npm install --save twit
$ npm install --save unique-random-array

Then cd into your new folder cd tw* will move you to :~/workspace/twitter-bot-bootstrap (master) $ form here you can configure the bot, from the terminal enter.

$ npm init

This will configure the package.json file with your details as desired, just keep hitting return if you're happy with the defaults.

Onto the Twitter keys, now you'll need to add these to the config.js file and you can then add some keywords into the strings.js file for what you want to search on as well as sub-queries.

add query and sub-query strings

you can also update blocked strings to block more stuff

Then add the username of the Twitter account you are using to the tweetNow function in the bot.js file, this will ensure your bot doesn't reply to itself when it has been followed by a user.

This step isn't strictly necessary if this account isn’t going to be following any users.

That should be it, go to the terminal and enter npm start you should get some output:

Check the Twitter account:

Heroku

Cool, now we have a bot that we can test on our dev environment but we can't leave it there, we'll need to deploy it to Heroku.

If you haven't done so already set up a Heroku account then select Create a new app from the dropdown box top right of your dashboard, in the next screen name the app it if you want, then click Create App

You'll be presented with your app dashboard and instructions for the deployment method

Your app name should be displayed on the top of your dashboard, you'll need this when logging in with the Heroku CLI.

Heroku CLI

We're going to deploy initially via the Heroku Command Line Interface CLI

On your c9 environment terminal, log into Heroku [it should be installed by default]

$ heroku login

Enter your credentials.

$ cd twitter-bot-bootstrap
$ git init
$ heroku git:remote -a your-heroku-app-name

Deploy your application.

$ git add .
$ git commit -am 'make it better'
$ git push heroku master

You should get build output on the terminal:

Then check the output with:

$ heroku logs -t

All good? Cool! 😎

Heroku variables

Now that we have our bot on Heroku we can use environment variables to store our Twitter keys so that if in the future we want to add our code to GitHub we don't have to exclude the config.js file or add our keys publicly.

If you take a look at the config.js file of this project you'll see there's several lines commented output:

module.exports = {
  consumer_key: process.env.CONSUMER_KEY,
  consumer_secret: process.env.CONSUMER_SECRET,
  access_token: process.env.ACCESS_TOKEN,
  access_token_secret: process.env.ACCESS_TOKEN_SECRET,
};

All you need to do is go to the console of your Heroku app and select the 'Settings' sections and add in your Twitter keys, click the 'Reveal Config Vars' button and add in the variables with their corresponding values:

CONSUMER_KEY
CONSUMER_SECRET
ACCESS_TOKEN
ACCESS_TOKEN_SECRET

Once you have the Heroku vars set up then you can un-comment the module.exports section in the config.js file on your development environment and you're ready to deploy to Heroku again without your Twitter keys.

Your console commands should look something like this:

$ git add .
$ git commit -m 'add environment variables'
$ git push heroku master

Then you can check the Heroku logs again with:

$ heroku logs -t

You should now have a bot you can leave to do its thing forever more, or until you decide you want to change the search criteria 😄

Heroku deployment via GitHub

You can also deploy your app by connecting to GitHub and deploy automatically to Heroku each time your master branch is updated on GitHub, this is straight forward enough.

Go to the ‘Deploy’ dashboard on Heroku, select GitHub as the deployment method if you have connected your GitHub account to your Heroku account then you can search for the repository so if you forked this repo then you can just enter twitter-bot-bootstrap and Search you can then click the Connect button, you can then auto deploy from GitHub.

Heroku troubleshooting

What do you mean it crashed!?

Ok, I found that sometimes the worker is set as web and it crashes out try setting the worker again:

$ heroku ps:scale worker=0
$ heroku ps:scale worker=1

Other usefule Heroku commands I use:

$ heroku restart

By default you can only push your master branch if you are working on a development branch i.e. dev branch and you want to test on Heroku then you can use:

$ git push heroku dev:master

Contributing

Please fork this repository and contribute back using pull requests.

Any contributions, large or small, major features, bugfixes and integration tests are welcomed and appreciated but will be thoroughly reviewed and discussed.

Links

Credit for the inspiration for this should go to @amanhimself and his posts on creating your own twitter bot.

create-a-simple-twitter-bot-with-node-js

how-to-make-a-twitter-bot-with-nodejs

twitter-mctwitbot

awesome-twitter-bots

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