Leash SDK for Ruby

Ruby SDK for the Leash platform integrations API. Access Gmail, Google Calendar, Google Drive, and more through the Leash platform proxy.

Installation

Add to your Gemfile:

gem "leash-sdk"

Or install directly:

gem install leash-sdk

Quick Start

require "leash"

client = Leash::Integrations.new(auth_token: ENV["LEASH_AUTH_TOKEN"])

# Gmail
messages = client.gmail.list_messages(query: "is:unread", max_results: 10)
message  = client.gmail.get_message("msg_id_123")
client.gmail.send_message(to: "friend@example.com", subject: "Hello", body: "Hi there!")
labels = client.gmail.list_labels

# Google Calendar
calendars = client.calendar.list_calendars
events    = client.calendar.list_events(
  time_min: "2026-04-10T00:00:00Z",
  time_max: "2026-04-17T00:00:00Z",
  single_events: true,
  order_by: "startTime"
)
client.calendar.create_event(
  summary: "Team standup",
  start: { "dateTime" => "2026-04-11T09:00:00-04:00" },
  end_time: { "dateTime" => "2026-04-11T09:30:00-04:00" }
)

# Google Drive
files = client.drive.list_files
file  = client.drive.get_file("file_id_123")
results = client.drive.search_files("quarterly report", max_results: 5)

Connection Management

# Check if a provider is connected
client.connected?("gmail")  # => true/false

# Get all connections
client.connections  # => [{ "providerId" => "gmail", "status" => "active", ... }]

# Get OAuth connect URL (for UI buttons)
url = client.connect_url("gmail", return_url: "https://myapp.com/settings")

Error Handling

begin
  client.gmail.list_messages
rescue Leash::NotConnectedError => e
  # Redirect user to connect: e.connect_url
  puts "Please connect Gmail: #{e.connect_url}"
rescue Leash::TokenExpiredError => e
  # Token needs refresh: e.connect_url
  puts "Token expired, reconnect: #{e.connect_url}"
rescue Leash::Error => e
  # General API error
  puts "Error (#{e.code}): #{e.message}"
end

Configuration

# Custom platform URL
client = Leash::Integrations.new(
  auth_token: "your-token",
  platform_url: "https://your-instance.leash.build"
)

API Reference

`Leash::Integrations.new(auth_token:, platform_url: "https://leash.build")`

Creates a new client instance.

Gmail (`client.gmail`)

Method	Description
`list_messages(query:, max_results:, label_ids:, page_token:)`	List messages
`get_message(message_id, format:)`	Get a message by ID
`send_message(to:, subject:, body:, cc:, bcc:)`	Send an email
`search_messages(query, max_results:)`	Search messages
`list_labels`	List all labels

Calendar (`client.calendar`)

Method	Description
`list_calendars`	List all calendars
`list_events(calendar_id:, time_min:, time_max:, max_results:, single_events:, order_by:)`	List events
`create_event(summary:, start:, end_time:, calendar_id:, description:, location:, attendees:)`	Create an event
`get_event(event_id, calendar_id:)`	Get an event by ID

Drive (`client.drive`)

Method	Description
`list_files(query:, max_results:, folder_id:)`	List files
`get_file(file_id)`	Get file metadata
`search_files(query, max_results:)`	Search files

Connections

Method	Description
`connected?(provider_id)`	Check if provider is connected
`connections`	Get all connection statuses
`connect_url(provider_id, return_url:)`	Get OAuth connect URL

Requirements

Ruby >= 3.0
No external dependencies (uses stdlib net/http, json, uri)

License

MIT