Condenser is the react.js web interface to the world's first and best blockchain-based social media platform, steemit.com. It uses STEEM, a blockchain powered by DPoS Governance and ChainBase DB to store JSON-based content for a plethora of web applications.
Why would I want to use Condenser (steemit.com front-end)?
- Learning how to build blockchain-based web applications using STEEM as a content storage mechanism in react.js
- Reviewing the inner workings of the steemit.com social media platform
- Assisting with software development for steemit.com
We highly recommend using docker to run condenser in production. This is how we run the live steemit.com site and it is the most supported (and fastest) method of both building and running condenser. We will always have the latest version of condenser (master branch) available on Docker Hub. Configuration settings can be set using environment variables (see configuration section below for more information). If you need to install docker, you can get it at https://get.docker.com
To bring up a running container it's as simple as this:
docker run -it -p 8080:8080 steemit/condenser
Environment variables can be added like this:
docker run -it --env SDC_DATABASE_URL="mysql://user:pass@hostname/databasename" -p 8080:8080 steemit/condenser
If you would like to modify, build, and run condenser using docker, it's as simple as pulling in the github repo and issuing one command to build it, like this:
git clone https://github.com/steemit/condenser cd condenser docker build -t="myname/condenser:mybranch" . docker run -it -p 8080:8080 myname/condenser:mybranch
Building from source without docker (the 'traditional' way):
(better if you're planning to do condenser development)
Clone the repository and make a tmp folder
git clone https://github.com/steemit/condenser cd condenser mkdir tmp
Install at least Node v8.7 if you don't already have it. We recommend using
nvm to do this as it's both the simplest way to install and manage
installed version(s) of node. If you need
nvm, you can get it at
Condenser is known to successfully build using node 8.7, npm 5.4.2, and yarn 1.3.2.
Using nvm, you would install like this:
nvm install v8.7
We use the yarn package manager instead of the default
npm. There are
multiple reasons for this, one being that we have
steem-js built from
source pulling the github repo as part of the build process and yarn
supports this. This way the library that handles keys can be loaded by
commit hash instead of a version name and cryptographically verified to be
exactly what we expect it to be. Yarn can be installed with
afterwards you will not need to use
npm install -g yarn yarn global add babel-cli yarn install --frozen-lockfile yarn run build
To run condenser in production mode, run:
yarn run production
When launching condenser in production mode it will automatically use 1 process per available core. You will be able to access the front-end at http://localhost:8080 by default.
To run condenser in development mode, run:
yarn run start
It will take quite a bit longer to start in this mode (~60s) as it needs to build and start the webpack-dev-server.
By default you will be connected to steemit.com's public steem node at
wss://steemd.steeemit.com. This is actually on the real blockchain and
you would use your regular account name and credentials to login - there is
not an official separate testnet at this time. If you intend to run a
full-fledged site relying on your own, we recommend looking into running a
steemd locally instead
Debugging SSR code
yarn debug will build a development version of the codebase and then start the
local server with
--inspect-brk so that you can connect a debugging client.
You can use Chromium to connect by finding the remote client at
The intention is to configure condenser using environment variables. You
can see the names of all of the available configuration environment
config/custom-environment-variables.json. Default values are
Environment variables using an example like this:
export SDC_CLIENT_STEEMD_URL="wss://steemd.steemit.com" export SDC_SERVER_STEEMD_URL="wss://steemd.steemit.com"
Keep in mind environment variables only exist in your active session, so if
you wish to save them for later use you can put them all in a file and
source them in.
If you'd like to statically configure condenser without variables you can
edit the settings directly in
config/production.json. If you're running
in development mode, copy
cp config/production.json config/dev.json and adjust settings in
If you're intending to run condenser in a production environment one
configuration option that you will definitely want to edit is
server_session_secret which can be set by the environment variable
SDC_SESSION_SECRETKEY. To generate a new value for this setting, you can
node > crypto.randomBytes(32).toString('base64') > .exit
Install mysql server
If you've followed the instructions up until this point you will already have a running condenser installation which is entirely acceptable for development purposes. It is not required to run a SQL server for development. If you're running a full-fledged site however, you will want to set one up.
Once set up, you can set the mysql server configuration option for
condenser using the environment variable
alternatively by editing it in
config/production.json. You will use the
Here are instructions for setting up a mysql server and running the necessary migrations by operating system:
brew update brew doctor brew upgrade brew install mysql mysql.server restart
Debian based Linux:
sudo apt-get update sudo apt-get install mysql-server
On Ubuntu 16.04+ you may be unable to connect to mysql without root access, if so update the mysql root user as follows:
sudo mysql -u root DROP USER 'root'@'localhost'; CREATE USER 'root'@'%' IDENTIFIED BY ''; GRANT ALL PRIVILEGES ON *.* TO 'root'@'%'; FLUSH PRIVILEGES;
Now launch mysql client and create steemit_dev database:
mysql -u root > create database steemit_dev; > quit
This is a required step in order for the database to be 'ready' for condenser's use.
Edit the file
src/db/config/config.json using your favorite command line
text editor being sure that the username, password, host, and database name
are set correctly and match your newly configured mysql setup.
sequelize db:migrate in
src/db directory, like this:
cd src/db yarn exec sequelize db:migrate
Style Guides For Submitting Pull Requests
File naming and location
- Prefer CamelCase js and jsx file names
- Prefer lower case one word directory names
- Keep stylesheet files close to components
- Component's stylesheet file name should match component name
Js & Jsx
We use prettier to autofromat the
code, with this configuration. Run
yarn run fmt to format
yarn exec -- prettier --config .prettierrc --write src/whatever/file.js for a specific file.
CSS & SCSS
If a component requires a css rule, please use its uppercase name for the class, e.g. "Header" class for the header's root div. We adhere to BEM methodology with exception for Foundation classes, here is an example for the Header component:
<!-- Block --> <ul class="Header"> ... <!-- Element --> <li class="Header__menu-item">Menu Item 1</li> <!-- Element with modifier --> <li class="Header__menu-item--selected">Element with modifier</li> </ul>
yarn run storybook
Run test suite
Test endpoints offline
If you want to test a server-side rendered page without using the network, do this:
yarn build OFFLINE_SSR_TEST=true SDC_DATABASE_URL="mysql://email@example.com/steemit_dev" NODE_ENV=production node --prof lib/server/index.js
This will read data from the blobs in
api_mockdata directory. If you want to use another set of mock data, create a similar directory to that one and add an argument
OFFLINE_SSR_TEST_DATA_DIR pointing to your new directory.
Run blackbox tests using nightwatch
To run a Selenium test suite, start the condenser docker image with a name
docker run --name condenser -itp 8080:8080 steemit/condenser:latest) and then run the blackboxtest image attached to the condneser image's network:
docker build -t=steemit/condenser-blackboxtest blackboxtest/ docker run --network container:condenser steemit/condenser-blackboxtest:latest
To report a non-critical issue, please file an issue on this GitHub project.
If you find a security issue please report details to: firstname.lastname@example.org
We will evaluate the risk and make a patch available before filing the issue.