USPS Ruby Client

An unofficial Ruby client for The United Sates Postal Service Web Tools API.

Disclaimer This gem is mostly auto-generated from the USPS API User Guides. Because of inconsistencies and inaccuracies in the user guides, some endpoints may not work as expected or may not be consistent with other methods in this gem.

Add this line to your application's Gemfile:

gem 'usps-ruby-client'

And then execute:

$ bundle install

Or install it yourself as:

$ gem install usps-ruby-client

client = Usps::Client.new({
    user_id: ENV['USPS_USER_ID'] # The user_id will default to `ENV['USPS_USER_ID']` so this is technically unnecessary.
})

client.city_state_lookup({
    city_state_lookup_request: {
        zip_code: {
            zip5: 33626
        }
    }
})


# Returns
{
    "CityStateLookupResponse" => {
        "ZipCode"=>{
            "City"=>"TAMPA",
            "State"=>"FL",
            "Zip5"=>"33626"
        }
    }
}

The generator also creates documentation to help you navigate the available methods. It has the same issues presented in the disclaimer above.

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

Because the USPS website does not allow scripts to make requests against their website, you must download the API User Guide HTML files manually. I recommend right-clicking the HTM and selecting Save Link As... to prevent any browser extensions from injecting their code and breaking the parsing.

Place just the .htm files in lib/data/api (and remove any that may no longer be active) and run rake usps:api:update. This task will recreate all the appropriate methods and some basic spec tests.

We might be able to automate this with a headless browser tool like Watir, but only if we can do that in a way that doesn't bloat the gem as a whole.

Bug reports and pull requests are welcome on GitHub at https://github.com/joeyparis/usps-ruby-client. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct.

This project is still an early work-in-progress, so any additional help is greatly appreciated!

The gem is available as open-source under the terms of the MIT License.

Everyone interacting in the Usps project's codebases, issue trackers, chat rooms, and mailing lists is expected to follow the code of conduct.