Set up and configure ngp_van gem

[christopherstyles]

This update adds the ngp_van gem, and configures the app using an initializer. Sample environment configuration has been provided in the .env.sample.

The ngp_van gem is currently private until the general election, and in order to install it you will need to authenticate Bundler to GitHub using an oauth access token. Please contact a team member in Slack for the correct token to use.

Once you have the token, you can use bundler-config to configure the project locally:

bundle config --local GITHUB_OAUTH_TOKEN <token>:x-oauth-basic

Then bundle install.

Configure the following environment variables in .env [docs]:

NGP_VAN_APPLICATION_NAME="YourApplicationName"
NGP_VAN_API_KEY="ApiKey|Mode"

An NgpVan object will be available to interact with via the console:

% rails c
[1] pry(main)> NgpVan.district_fields
# => [
#      {"districtFieldId"=>1, "name"=>"State", "parentFieldId"=>nil...,
#      {"districtFieldId"=>2, "name"=>"County", "parentFieldId"=>1...
#    ]

API Methods can be called as module methods or as instance methods on the client.

[2] pry(main)> NgpVan.district_fields
# => [
#      {"districtFieldId"=>1, "name"=>"State", "parentFieldId"=>nil...},
#      {"districtFieldId"=>4, "name"=>"County", "parentFieldId"=>1...}
#    ]

or

[3] pry(main)> client = NpgVan.client
[4] pry(main)> client.district_fields
# => [
#      {"districtFieldId"=>1, "name"=>"State", "parentFieldId"=>nil...},
#      {"districtFieldId"=>4, "name"=>"County", "parentFieldId"=>1...}
#    ]

Resolves #126