Ruby

bundle install

require "bundler/setup"
require "dodopayments"

dodo_payments = Dodopayments::Client.new(
  bearer_token: ENV["DODO_PAYMENTS_API_KEY"], # This is the default and can be omitted
  environment: "test_mode" # defaults to "live_mode"
)

checkout_session_response = dodo_payments.checkout_sessions.create(
  product_cart: [{product_id: "pdt_123", quantity: 1}]
)

puts(checkout_session_response.session_id)

# Configure default for all requests (default is 60 seconds)
dodo_payments = Dodopayments::Client.new(
  timeout: nil # disable timeout
)

# Or, configure per-request
dodo_payments.checkout_sessions.create(
  product_cart: [{product_id: "pdt_123", quantity: 1}],
  request_options: {timeout: 5}
)

# Configure default for all requests (default is 2)
dodo_payments = Dodopayments::Client.new(
  max_retries: 0 # disable retries
)

# Or, configure per-request
dodo_payments.checkout_sessions.create(
  product_cart: [{product_id: "pdt_123", quantity: 1}],
  request_options: {max_retries: 5}
)

session = dodo_payments.checkout_sessions.create(
  product_cart: [
    {
      product_id: "pdt_123",
      quantity: 1
    }
  ],
  return_url: "https://yourdomain.com/return"
)

# In a Rails controller, redirect to checkout
redirect_to session.checkout_url, allow_other_host: true

# Create a customer
customer = dodo_payments.customers.create(
  email: "customer@example.com",
  name: "John Doe",
  metadata: {
    user_id: "12345"
  }
)

# Retrieve customer
customer = dodo_payments.customers.retrieve("cus_123")
puts "Customer: #{customer.name} (#{customer.email})"

# Create a subscription
subscription = dodo_payments.subscriptions.create(
  billing: {
    country: "US",
    city: "San Francisco",
    state: "CA",
    street: "1 Market St",
    zipcode: "94105"
  },
  customer: { customer_id: "cus_123" }, # or { email: "...", name: "..." } for a new customer
  product_id: "pdt_456",
  quantity: 1
)

# Charge an on-demand subscription
# product_price is in the lowest currency denomination (e.g., 2500 = $25.00 USD)
charge = dodo_payments.subscriptions.charge(
  subscription.subscription_id,
  product_price: 2500
)

# Update subscription metadata
updated = dodo_payments.subscriptions.update(
  subscription.subscription_id,
  metadata: { plan_type: "premium" }
)

page = dodo_payments.payments.list

# Fetch single item from page
payment = page.items[0]
puts(payment.brand_id)

# Automatically fetches more pages as needed
page.auto_paging_each do |payment|
  puts(payment.brand_id)
end

page = dodo_payments.payments.list

if page.next_page?
  new_page = page.next_page
  puts(new_page.items[0].brand_id)
end

begin
  checkout_session = dodo_payments.checkout_sessions.create(
    product_cart: [{product_id: "pdt_123", quantity: 1}]
  )
rescue Dodopayments::Errors::APIConnectionError => e
  puts("The server could not be reached")
  puts(e.cause)  # an underlying Exception, likely raised within `net/http`
rescue Dodopayments::Errors::RateLimitError => e
  puts("A 429 status code was received; we should back off a bit.")
rescue Dodopayments::Errors::APIStatusError => e
  puts("Another non-200-range status code was received")
  puts(e.status)
end

# Type-safe using Sorbet RBI definitions
dodo_payments.checkout_sessions.create(
  product_cart: [
    Dodopayments::ProductItemReq.new(
      product_id: "pdt_123",
      quantity: 1
    )
  ]
)

# Hashes work, but are not typesafe
dodo_payments.checkout_sessions.create(
  product_cart: [{product_id: "pdt_123", quantity: 1}]
)

# You can also splat a full Params class
params = Dodopayments::CheckoutSessionCreateParams.new(
  product_cart: [
    Dodopayments::ProductItemReq.new(
      product_id: "pdt_123",
      quantity: 1
    )
  ]
)
dodo_payments.checkout_sessions.create(**params)

response = dodo_payments.request(
  method: :post,
  path: '/undocumented/endpoint',
  query: {"dog": "woof"},
  headers: {"useful-header": "interesting-value"},
  body: {"hello": "world"}
)

checkout_session_response = dodo_payments.checkout_sessions.create(
  product_cart: [{product_id: "pdt_123", quantity: 1}],
  request_options: {
    extra_query: {my_query_parameter: "value"},
    extra_body: {my_body_parameter: "value"},
    extra_headers: {"my-header": "value"}
  }
)

# Access undocumented response properties
puts(checkout_session_response[:my_undocumented_property])

require "dodopayments"

DODO_CLIENT = Dodopayments::Client.new(
  bearer_token: Rails.application.credentials.dodo_api_key,
  environment: Rails.env.production? ? "live_mode" : "test_mode"
)

# app/services/payment_service.rb
class PaymentService
  def initialize
    @client = DODO_CLIENT
  end

  def create_checkout(items)
    @client.checkout_sessions.create(
      product_cart: items,
      return_url: Rails.application.routes.url_helpers.checkout_return_url
    )
  end

  def process_payment(product_id:, customer_id:, billing:)
    # Note: POST /payments is deprecated — prefer checkout sessions for new integrations
    @client.payments.create(
      billing: billing,
      customer: { customer_id: customer_id },
      product_cart: [{ product_id: product_id, quantity: 1 }]
    )
  end
end

# app/controllers/checkouts_controller.rb
class CheckoutsController < ApplicationController
  def create
    service = PaymentService.new
    session = service.create_checkout(checkout_params[:items])
    
    redirect_to session.checkout_url, allow_other_host: true
  rescue Dodopayments::Errors::APIError => e
    flash[:error] = "Payment error: #{e.message}"
    redirect_to cart_path
  end

  private

  def checkout_params
    params.require(:checkout).permit(items: [:product_id, :quantity])
  end
end

require "sinatra"
require "dodopayments"

configure do
  set :dodo_client, Dodopayments::Client.new(
    bearer_token: ENV["DODO_PAYMENTS_API_KEY"]
  )
end

post "/create-checkout" do
  content_type :json
  
  begin
    session = settings.dodo_client.checkout_sessions.create(
      product_cart: JSON.parse(request.body.read)["items"],
      return_url: "#{request.base_url}/return"
    )
    
    { checkout_url: session.checkout_url }.to_json
  rescue Dodopayments::Errors::APIError => e
    status 400
    { error: e.message }.to_json
  end
end