Gatewayd (pronounced "gateway-dee"), provides a framework you can extend to build a gateway on the Ripple Network. The system includes a core database that manages accounting for deposits and withdrawals of assets, linking the network with your holdings in the outside world. Gatewayd provides a standard interface for issuing any currency on the Ripple network and exchange, with the goal of completely abstracting interaction with Ripple.

Interact with the gatewayd by building custom integrations with banking and payment systems around the world, and by using the built-in APIs for designing beautiful gateway mobile apps and user interfaces. Gatewayd includes a REST API, Javascript library, and commandline interface; developers can also interact with Gatewayd by directly modifying the database records it monitors.

Gatewayd's features include:

• deposits and withdrawals
• issuing currency
• robust Ripple payment sending
• incoming Ripple payment monitoring
• gateway administration
• support for custom plugins

• Comprehensive installation script for Ubuntu
• Comprehensive installation script for Mac

The Ripple Dev Portal contains detailed information on Gatewayd and its APIs.

1. Node.js

• The express web module is used to serve HTTP/JSON endpoints
• A Basic Auth strategy is used for authentication of users, admin.
• Several NPM modules must be globally installed: db-migrate, pg, forever, and mocha

2. Postgres

• The easiest way to get started with Postgres is by launching a free database hosted by Heroku
• For local development on Mac the simplest installation is via the Postgres App by Heroku.
• On Linux, you can generally install Postgres from your distro's package manager. See instructions for:
  • Ubuntu
  • Debian
  • Red Hat, Fedora, CentOS
  • SuSE
  • Arch Linux

3. Ripple REST API

• The Ripple REST API provides a simplified HTTP/JSON interface to all the Ripple protocol network operations, such as payments and other transactions.

4. git is required for installation and updating. It is not used during general operation.

The update process for gatewayd may change in the future, but for now, updating to a new version follows this process:

1. Use git to pull the master branch from Github. (This assumes you created it by using git clone on the repository first.)
   git pull
2. Install any new npm modules needed by the new version
   sudo npm install --global
3. Disable the current gateway processes. (This starts downtime)
   pm2 kill
4. Apply schema changes to the database, if the new version includes any.
   grunt migrate
5. Restart the gatewayd processes. (This ends downtime)
   bin/gateway start

Before you can run gatewayd, you need to set up the appropriate accounts that will be used to store and send funds in the Ripple network. You also need to define which currencies your gateway issues. Beyond that, there are some options you can set if they fit your needs.

The defaults for all of gatewayd's settings are found in the file config/environment.js. You can override any of those settings with your own values by editing them in the file config/config.json, or by using the API methods for setting the configuration. (The API methods result in editing the config/config.json file anyway.) Don't edit the config/environment.js file, since that only contains the defaults, and gets overridden in a software update.

After installation, start the gateway processes by running the command:

bin/gateway start

In addition to the REST interface, many pieces of Gatewayd can be controlled directly through the commandline. This is done by running the gateway script (bin/gateway from the project's top level directory) with the relevant commands.

You can get usage information for the commandline as follows:

bin/gateway -h

The following is an example flow for releasing changes to master:

• create a new release branch such as release-3.35.1 with the patch
• bump the version patch number in the package.json: change 3.35.0 to 3.35.1
• cherry pick the patch commit into the release branch git cherry-pick <commit>
• summarize the release in doc/releases.md
• create a git tag with the version number: git tag -a v3.35.1
• merge the release branch into the master branch
• push master to the origin remote: git push origin master
• push release tag to origin remote: git push --tags
• rebase the develop branch: git checkout develop && git rebase master