Patch Ruby SDK

The official Ruby gem for the Patch API

Documentation

For a complete API reference, check out Patch's API Reference.

Installation

Add the gem to your Gemfile:

gem 'patch_ruby'

Then run:

bundle

Or install it directly with

gem install patch_ruby

Requirements

Ruby 1.9+

Usage

Configuration

After installing the gem, you'll have to configure it with your API key which is available from the API key page in the Patch dashboard:

require 'patch_ruby'

Patch.configure do |config|
  # Configure the Patch gem with your API key here
  config.access_token = ENV['SANDBOX_API_KEY']
end

Orders

In Patch, orders represent a purchase of carbon offsets or negative emissions by mass. Place orders directly if you know the amount of carbon dioxide you would like to sequester. If you do not know how much to purchase, use an estimate. You can also create an order with a maximum desired price, and we'll allocate enough mass to fulfill the order for you.

API Reference

Examples

# Create an order - you can create an order
# providing either mass_g or total_price_cents_usd, but not both

# Create order with mass
mass = 1_000_000 # Pass in the mass in grams (i.e. 1 metric tonne)
Patch::Order.create_order(mass_g: mass)

# Create an order with maximum total price
total_price_cents_usd = 5_00 # Pass in the total price in cents (i.e. 5 dollars)
Patch::Order.create_order(total_price_cents_usd: total_price_cents_usd)

## You can also specify a project-id field (optional) to be used instead of the preferred one
project_id = 'pro_test_1234' # Pass in the project's ID
Patch::Order.create_order(mass_g: mass, project_id: project_id)

## Orders also accept a metadata field (optional)
metadata = {user: "john doe"}
Patch::Order.create_order(mass_g: mass, metadata: metadata)

# Retrieve an order
order_id = 'ord_test_1234' # Pass in the order's id
Patch::Order.retrieve_order(order_id)

# Place an order
order_id = 'ord_test_1234' # Pass in the order's id
Patch::Order.place_order(order_id)

# Cancel an order
order_id = 'ord_test_1234' # Pass in the order's id
Patch::Order.cancel_order(order_id)

# Retrieve a list of orders
page = 1 # Pass in which page of orders you'd like
Patch::Order.retrieve_orders(page: page)

Estimates

Estimates allow API users to get a quote for the cost of compensating a certain amount of CO2. When creating an estimate, an order in the draft state will also be created, reserving the allocation of a project for 5 minutes. If you don't place your draft order within those 5 minutes, the order will automatically be cancelled.

API Reference

Examples

# Create a mass estimate
mass = 1_000_000 # Pass in the mass in grams (i.e. 1 metric tonne)
Patch::Estimate.create_mass_estimate(mass_g: mass)

# Create a flight estimate
distance_m = 1_000_000 # Pass in the distance traveled in meters
Patch::Estimate.create_flight_estimate(distance_m: distance_m)

# Create a shipping estimate
distance_m = 1_000_000 # Pass in the shipping distance in meters
package_mass_g = 10_000 # Pass in the weight of the package shipped in grams
transportation_method = "air" # Pass in the transportation method (air, rail, road, sea)
Patch::Estimate.create_shipping_estimate(
  distance_m: distance_m,
  package_mass_g: package_mass_g,
  transportation_method: transportation_method
)

# Create a vehicle estimate
distance_m = 1_000_000 # Pass in the shipping distance in meters
make = "Toyota" # Pass in the car make
model = "Corolla" # Pass in the car model
year = 2000 # Pass in the car year
Patch::Estimate.create_vehicle_estimate(
  distance_m: distance_m,
  make: make,
  model: model,
  year: year
)

# Create a flight estimate
transaction_value_btc_sats = 1000; # [Optional] Pass in the transaction value in satoshis
Patch::Estimate.create_bitcoin_estimate(transaction_value_btc_sats: transaction_value_btc_sats)

## You can also specify a project-id field (optional) to be used instead of the preferred one
project_id = 'pro_test_1234' # Pass in the project's ID
Patch::Estimate.create_mass_estimate(mass_g: mass, project_id: project_id)

# Retrieve an estimate
estimate_id = 'est_test_1234'
Patch::Estimate.retrieve_estimate(estimate_id)

# Retrieve a list of estimates
page = 1 # Pass in which page of estimates you'd like
Patch::Estimate.retrieve_estimates(page: page)

Projects

Projects are the ways Patch takes CO2 out of the air. They can represent reforestation, enhanced weathering, direct air carbon capture, etc. When you place an order via Patch, it is allocated to a project.

When fetching Projects, you can add filters to the query to narrow the result. Currently supported filters are:

country
type
minimum_available_mass

API Reference

Examples

# Retrieve a project
project_id = 'pro_test_1234' # Pass in the project's ID
Patch::Project.retrieve_project(project_id)

# Retrieve a list of projects
page = 1 # Pass in which page of projects you'd like
Patch::Project.retrieve_projects(page: page)

# Retrieve all projects from the United States
country = 'US'
Patch::Project.retrieve_projects(country: country)

# Retrieve all biomass projects
type = 'biomass'
Patch::Project.retrieve_projects(type: type)

# Retrieve a list of projects with at least 100 grams of available offsets
minimum_available_mass = 100
Patch::Project.retrieve_projects(minimum_available_mass: minimum_available_mass)

Preferences

Preferences are how you route your orders in Patch. If you don't have a preference, Patch will allocate your order to the least expensive option. If you do have a preference, all of your orders will be sent to that project. You can set your preferences via API, or through the Patch Dashboard.

API Reference

Examples

# Create a preference
project_id = 'pro_test_1234' # Pass in the project_id for your preference
Patch::Preference.create_preference(project_id: project_id)

# Retrieve a preference
preference_id = 'pre_test_1234' # Pass in the preferences's id
Patch::Preference.retrieve_preference(preference_id)

# Delete a preference
preference_id = 'pre_test_1234' # Pass in the preferences's id
Patch::Preference.delete_preference(preference_id)

# Retrieve a list of preferences
page = 1 # Pass in which page of preferences you'd like
Patch::Preference.retrieve_preferences(page: page)

Development

To build the gem locally, run:

gem build patch_ruby.gemspec

This will create a .gem file. To install the local gem:

gem install patch_ruby-1.x.x.gem

Install dependencies:

bundle install

Set up required environment variables:

export SANDBOX_API_KEY=<SANDBOX API KEY>

Run tests:

bundle exec rspec