Go - Dodo Payments Documentation

The Go SDK provides a clean and idiomatic Go interface for integrating Dodo Payments into your applications. It offers context support, strongly typed responses, middleware capabilities, and is safe for concurrent use.

Installation

Install the SDK using Go modules:

go get github.com/dodopayments/dodopayments-go

Or to pin to a specific version:

go get -u 'github.com/dodopayments/dodopayments-go@v1.97.3'

The SDK requires Go 1.22 or later versions, leveraging modern Go features for optimal performance.

Quick Start

Initialize the client and create your first checkout session:

package main

import (
	"context"
	"fmt"
	"log"

	"github.com/dodopayments/dodopayments-go"
	"github.com/dodopayments/dodopayments-go/option"
)

func main() {
	client := dodopayments.NewClient(
		option.WithBearerToken("My Bearer Token"), // defaults to os.LookupEnv("DODO_PAYMENTS_API_KEY")
		option.WithEnvironmentTestMode(),          // defaults to option.WithEnvironmentLiveMode()
	)
	
	checkoutSessionResponse, err := client.CheckoutSessions.New(context.TODO(), dodopayments.CheckoutSessionNewParams{
		CheckoutSessionRequest: dodopayments.CheckoutSessionRequestParam{
			ProductCart: dodopayments.F([]dodopayments.ProductItemReqParam{{
				ProductID: dodopayments.F("product_id"),
				Quantity:  dodopayments.F(int64(1)),
			}}),
		},
	})
	if err != nil {
		panic(err.Error())
	}
	fmt.Printf("Session ID: %s\n", checkoutSessionResponse.SessionID)
}

Always store your API keys securely using environment variables. Never hardcode them in your source code.

Core Features

Context Support

Full support for context.Context for cancellation and timeouts

Strong Typing

Strongly typed requests and responses for compile-time safety

Middleware

Extensible middleware support for logging, metrics, and custom logic

Goroutine Safe

Thread-safe client designed for concurrent operations

Configuration

Context and Timeouts

Leverage Go’s context for timeouts and cancellation:

import (
	"context"
	"time"
	
	"github.com/dodopayments/dodopayments-go"
	"github.com/dodopayments/dodopayments-go/option"
)

// Create a context with timeout
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()

payment, err := client.Payments.New(ctx, dodopayments.PaymentNewParams{
	Billing: dodopayments.F(dodopayments.BillingAddressParam{
		Country: dodopayments.F(dodopayments.CountryCodeUs),
		City:    dodopayments.F("San Francisco"),
		State:   dodopayments.F("CA"),
		Street:  dodopayments.F("1 Market St"),
		Zipcode: dodopayments.F("94105"),
	}),
	Customer: dodopayments.F[dodopayments.CustomerRequestUnionParam](
		dodopayments.AttachExistingCustomerParam{
			CustomerID: dodopayments.F("cus_123"),
		},
	),
	ProductCart: dodopayments.F([]dodopayments.OneTimeProductCartItemParam{{
		ProductID: dodopayments.F("pdt_456"),
		Quantity:  dodopayments.F(int64(1)),
	}}),
})
if err != nil {
	if ctx.Err() == context.DeadlineExceeded {
		log.Println("Request timed out")
	} else {
		log.Fatal(err)
	}
}

Retry Configuration

Configure automatic retry behavior:

// Configure default for all requests (default is 2)
client := dodopayments.NewClient(
	option.WithMaxRetries(0), // disable retries
)

// Override per-request
client.CheckoutSessions.New(
	context.TODO(),
	dodopayments.CheckoutSessionNewParams{
		CheckoutSessionRequest: dodopayments.CheckoutSessionRequestParam{
			ProductCart: dodopayments.F([]dodopayments.ProductItemReqParam{{
				ProductID: dodopayments.F("product_id"),
				Quantity:  dodopayments.F(int64(0)),
			}}),
		},
	},
	option.WithMaxRetries(5),
)

Common Operations

Create a Checkout Session

Generate a checkout session:

session, err := client.CheckoutSessions.New(ctx, dodopayments.CheckoutSessionNewParams{
	CheckoutSessionRequest: dodopayments.CheckoutSessionRequestParam{
		ProductCart: dodopayments.F([]dodopayments.ProductItemReqParam{{
			ProductID: dodopayments.F("prod_123"),
			Quantity:  dodopayments.F(int64(1)),
		}}),
		ReturnURL: dodopayments.F("https://yourdomain.com/return"),
	},
})
if err != nil {
	log.Fatal(err)
}

fmt.Printf("Checkout URL: %s\n", session.CheckoutURL)

Manage Customers

Create and retrieve customer information:

// Create a customer
customer, err := client.Customers.New(ctx, dodopayments.CustomerNewParams{
	Email: dodopayments.F("customer@example.com"),
	Name:  dodopayments.F("John Doe"),
	Metadata: dodopayments.F(map[string]string{
		"user_id": "12345",
	}),
})
if err != nil {
	log.Fatal(err)
}

// Retrieve customer
customer, err = client.Customers.Get(ctx, "cus_123")
if err != nil {
	log.Fatal(err)
}

fmt.Printf("Customer: %s (%s)\n", customer.Name, customer.Email)

Handle Subscriptions

Create and manage recurring subscriptions:

import "time"

// Create a subscription
subscription, err := client.Subscriptions.New(ctx, dodopayments.SubscriptionNewParams{
	Billing: dodopayments.F(dodopayments.BillingAddressParam{
		Country: dodopayments.F(dodopayments.CountryCodeUs),
		City:    dodopayments.F("San Francisco"),
		State:   dodopayments.F("CA"),
		Street:  dodopayments.F("1 Market St"),
		Zipcode: dodopayments.F("94105"),
	}),
	Customer: dodopayments.F[dodopayments.CustomerRequestUnionParam](
		dodopayments.AttachExistingCustomerParam{
			CustomerID: dodopayments.F("cus_123"),
		},
	),
	ProductID: dodopayments.F("pdt_456"),
	Quantity:  dodopayments.F(int64(1)),
})
if err != nil {
	log.Fatal(err)
}

// Charge an on-demand subscription
// ProductPrice is in the lowest currency denomination (e.g., 2500 = $25.00 USD)
chargeResponse, err := client.Subscriptions.Charge(ctx, subscription.SubscriptionID,
	dodopayments.SubscriptionChargeParams{
		ProductPrice: dodopayments.F(int64(2500)),
	},
)
if err != nil {
	log.Fatal(err)
}

// Get usage history (for metered subscriptions)
usageHistory, err := client.Subscriptions.GetUsageHistory(
	ctx,
	subscription.SubscriptionID,
	dodopayments.SubscriptionGetUsageHistoryParams{
		StartDate: dodopayments.F(time.Date(2024, 1, 1, 0, 0, 0, 0, time.UTC)),
		EndDate:   dodopayments.F(time.Date(2024, 3, 31, 23, 59, 59, 0, time.UTC)),
	},
)
if err != nil {
	log.Fatal(err)
}

Billing requires at minimum the two-letter ISO Country code. Customer is a CustomerRequestUnionParam — pass AttachExistingCustomerParam{CustomerID: ...} for an existing customer or NewCustomerParam{Email: ..., Name: ...} for a new one. ProductPrice is in the lowest currency denomination.

Usage-Based Billing

Ingest Usage Events

Track custom events:

import "github.com/dodopayments/dodopayments-go"

response, err := client.UsageEvents.Ingest(ctx, dodopayments.UsageEventIngestParams{
	Events: dodopayments.F([]dodopayments.EventInputParam{{
		EventID:    dodopayments.F("api_call_12345"),
		CustomerID: dodopayments.F("cus_abc123"),
		EventName:  dodopayments.F("api_request"),
		Timestamp:  dodopayments.F(time.Date(2024, 1, 15, 10, 30, 0, 0, time.UTC)),
	}}),
})
if err != nil {
	log.Fatal(err)
}

List Usage Events

// List events with filters
params := dodopayments.UsageEventListParams{
	CustomerID: dodopayments.F("cus_abc123"),
	EventName:  dodopayments.F("api_request"),
}

events, err := client.UsageEvents.List(ctx, params)
if err != nil {
	log.Fatal(err)
}

for _, event := range events.Items {
	fmt.Printf("Event %s: %s at %s\n", event.EventID, event.EventName, event.Timestamp)
}

Error Handling

When the API returns a non-success status code, the SDK returns an error of type *dodopayments.Error. It exposes the StatusCode, the underlying *http.Request and *http.Response, and the JSON of the error body. Use the errors.As pattern to inspect it, and branch on StatusCode to handle specific cases:

payment, err := client.Payments.New(ctx, dodopayments.PaymentNewParams{
	Billing: dodopayments.F(dodopayments.BillingAddressParam{
		Country: dodopayments.F(dodopayments.CountryCodeUs),
		City:    dodopayments.F("San Francisco"),
		State:   dodopayments.F("CA"),
		Street:  dodopayments.F("1 Market St"),
		Zipcode: dodopayments.F("94105"),
	}),
	Customer: dodopayments.F[dodopayments.CustomerRequestUnionParam](
		dodopayments.AttachExistingCustomerParam{CustomerID: dodopayments.F("cus_123")},
	),
	ProductCart: dodopayments.F([]dodopayments.OneTimeProductCartItemParam{{
		ProductID: dodopayments.F("pdt_456"),
		Quantity:  dodopayments.F(int64(1)),
	}}),
})
if err != nil {
	var apiErr *dodopayments.Error
	if errors.As(err, &apiErr) {
		fmt.Printf("Status Code: %d\n", apiErr.StatusCode)
		fmt.Println(string(apiErr.DumpResponse(true))) // Serialized HTTP response

		// Handle specific status codes
		switch apiErr.StatusCode {
		case 401:
			log.Println("Authentication failed")
		case 422:
			log.Println("Invalid request parameters")
		case 429:
			log.Println("Rate limit exceeded")
		default:
			log.Printf("API error: %s", apiErr.Error())
		}
	} else {
		log.Fatal(err)
	}
}

Middleware

Add custom middleware for logging or metrics:

func Logger(req *http.Request, next option.MiddlewareNext) (res *http.Response, err error) {
	// Before the request
	start := time.Now()
	log.Printf("Request: %s %s\n", req.Method, req.URL)

	// Forward the request to the next handler
	res, err = next(req)

	// After the request
	end := time.Now()
	log.Printf("Response: %d in %v\n", res.StatusCode, end.Sub(start))

	return res, err
}

client := dodopayments.NewClient(
	option.WithMiddleware(Logger),
)

Concurrency

The client is safe for concurrent use:

package main

import (
	"context"
	"sync"
	"log"

	"github.com/dodopayments/dodopayments-go"
)

func main() {
	client := dodopayments.NewClient()
	
	var wg sync.WaitGroup
	for i := 0; i < 10; i++ {
		wg.Add(1)
		go func(idx int) {
			defer wg.Done()
			
			payment, err := client.Payments.New(context.Background(), dodopayments.PaymentNewParams{
				Billing: dodopayments.F(dodopayments.BillingAddressParam{
					Country: dodopayments.F(dodopayments.CountryCodeUs),
					City:    dodopayments.F("San Francisco"),
					State:   dodopayments.F("CA"),
					Street:  dodopayments.F("1 Market St"),
					Zipcode: dodopayments.F("94105"),
				}),
				Customer: dodopayments.F[dodopayments.CustomerRequestUnionParam](
					dodopayments.AttachExistingCustomerParam{CustomerID: dodopayments.F("cus_123")},
				),
				ProductCart: dodopayments.F([]dodopayments.OneTimeProductCartItemParam{{
					ProductID: dodopayments.F("pdt_456"),
					Quantity:  dodopayments.F(int64(1)),
				}}),
			})
			if err != nil {
				log.Printf("Failed to create payment %d: %v", idx, err)
				return
			}
			
			log.Printf("Created payment %d: %s", idx, payment.PaymentID)
		}(i)
	}
	
	wg.Wait()
}

Resources

GitHub Repository

View source code and contribute

API Reference

Complete API documentation

Discord Community

Get help and connect with developers

Report Issues

Report bugs or request features

Support

Need help with the Go SDK?

Discord: Join our community server for real-time support
Email: Contact us at support@dodopayments.com
GitHub: Open an issue on the repository

Contributing

We welcome contributions! Check the contributing guidelines to get started.

Getting Started

Features

Integrate

Merchant of Record

Miscellaneous

Go

Installation

Quick Start

Core Features

Context Support

Strong Typing

Middleware

Goroutine Safe

Configuration

Context and Timeouts

Retry Configuration

Common Operations

Create a Checkout Session

Manage Customers

Handle Subscriptions

Usage-Based Billing

Ingest Usage Events

List Usage Events

Error Handling

Middleware

Concurrency

Resources

GitHub Repository

API Reference

Discord Community

Report Issues

Support

Contributing

​Installation

​Quick Start

​Core Features

Context Support

Strong Typing

Middleware

Goroutine Safe

​Configuration

​Context and Timeouts

​Retry Configuration

​Common Operations

​Create a Checkout Session

​Manage Customers

​Handle Subscriptions

​Usage-Based Billing

​Ingest Usage Events

​List Usage Events

​Error Handling

​Middleware

​Concurrency

​Resources

GitHub Repository

API Reference

Discord Community

Report Issues

​Support

​Contributing

Installation

Quick Start

Core Features

Configuration

Context and Timeouts

Retry Configuration

Common Operations

Create a Checkout Session

Manage Customers

Handle Subscriptions

Usage-Based Billing

Ingest Usage Events

List Usage Events

Error Handling

Middleware

Concurrency

Resources

Support

Contributing