Go Stripe

The official Stripe Go client library.

Installation

Install stripe-go with:

go get -u github.com/stripe/stripe-go

Then, import it using:

import (
    "github.com/stripe/stripe-go"
    "github.com/stripe/stripe-go/customer"
)

Go Module Support

The library currently does not ship with first-class support for Go modules. We put in support for it before, but ran into compatibility problems for existing installations using Dep (see discussion in closer to the bottom of this thread, and reverted support. Our current plan is to wait for better module compatibility in Dep (see a preliminary patch here), give the release a little grace time to become more widely distributed, then bring support back.

For now, require stripe-go in go.mod with a version but without a version suffix in the path like so:

module github.com/my/package

require (
    github.com/stripe/stripe-go v62.1.1
)

And use the same style of import paths as above:

import (
    "github.com/stripe/stripe-go"
    "github.com/stripe/stripe-go/customer"
)

Documentation

For a comprehensive list of examples, check out the API documentation.

For details on all the functionality in this library, see the GoDoc documentation.

Below are a few simple examples:

Customers

params := &stripe.CustomerParams{
	AccountBalance:     stripe.Int64(-123),
	Description: stripe.String("Stripe Developer"),
	Email:       stripe.String("gostripe@stripe.com"),
}
params.SetSource("tok_1234")

customer, err := customer.New(params)

Charges

params := &stripe.ChargeListParams{Customer: stripe.String(customer.ID)}
params.Filters.AddFilter("include[]", "", "total_count")

// set this so you can easily retry your request in case of a timeout
params.Params.IdempotencyKey = stripe.NewIdempotencyKey()

i := charge.List(params)
for i.Next() {
	charge := i.Charge()
}

if err := i.Err(); err != nil {
	// handle
}

Events

i := event.List(nil)
for i.Next() {
	e := i.Event()

	// access event data via e.GetObjectValue("resource_name_based_on_type", "resource_property_name")
	// alternatively you can access values via e.Data.Object["resource_name_based_on_type"].(map[string]interface{})["resource_property_name"]

	// access previous attributes via e.GetPreviousValue("resource_name_based_on_type", "resource_property_name")
	// alternatively you can access values via e.Data.PrevPreviousAttributes["resource_name_based_on_type"].(map[string]interface{})["resource_property_name"]
}

Alternatively, you can use the event.Data.Raw property to unmarshal to the appropriate struct.

Authentication with Connect

There are two ways of authenticating requests when performing actions on behalf of a connected account, one that uses the Stripe-Account header containing an account's ID, and one that uses the account's keys. Usually the former is the recommended approach. See the documentation for more information.

To use the Stripe-Account approach, use SetStripeAccount() on a ListParams or Params class. For example:

// For a list request
listParams := &stripe.ChargeListParams{}
listParams.SetStripeAccount("acct_123")

// For any other kind of request
params := &stripe.CustomerParams{}
params.SetStripeAccount("acct_123")

To use a key, pass it to API's Init function:

import (
	"github.com/stripe/stripe-go"
	"github.com/stripe/stripe-go/client"
)

stripe := &client.API{}
stripe.Init("access_token", nil)

Google AppEngine

If you're running the client in a Google AppEngine environment, you'll need to create a per-request Stripe client since the http.DefaultClient is not available. Here's a sample handler:

import (
	"fmt"
	"net/http"

	"google.golang.org/appengine"
	"google.golang.org/appengine/urlfetch"

	"github.com/stripe/stripe-go"
	"github.com/stripe/stripe-go/client"
)

func handler(w http.ResponseWriter, r *http.Request) {
        c := appengine.NewContext(r)
        httpClient := urlfetch.Client(c)

        sc := stripeClient.New("sk_live_key", stripe.NewBackends(httpClient))

        chargeParams := &stripe.ChargeParams{
            Amount:      stripe.Int64(2000),
            Currency:    stripe.String(string(stripe.CurrencyUSD)),
            Description: stripe.String("Charge from Google App Engine"),
        }
        chargeParams.SetSource("tok_amex") // obtained with Stripe.js
        charge, err := sc.Charges.New(chargeParams)
        if err != nil {
            fmt.Fprintf(w, "Could not process payment: %v", err)
        }
        fmt.Fprintf(w, "Completed payment: %v", charge.ID)
}

Usage

While some resources may contain more/less APIs, the following pattern is applied throughout the library for a given $resource$ :

Without a Client

If you're only dealing with a single key, you can simply import the packages required for the resources you're interacting with without the need to create a client.

import (
	"github.com/stripe/stripe-go"
	"github.com/stripe/stripe-go/$resource$"
)

// Setup
stripe.Key = "sk_key"

stripe.SetBackend("api", backend) // optional, useful for mocking

// Create
$resource$, err := $resource$.New(stripe.$Resource$Params)

// Get
$resource$, err := $resource$.Get(id, stripe.$Resource$Params)

// Update
$resource$, err := $resource$.Update(stripe.$Resource$Params)

// Delete
resourceDeleted, err := $resource$.Del(id, stripe.$Resource$Params)

// List
i := $resource$.List(stripe.$Resource$ListParams)
for i.Next() {
	$resource$ := i.$Resource$()
}

if err := i.Err(); err != nil {
	// handle
}

With a Client

If you're dealing with multiple keys, it is recommended you use client.API. This allows you to create as many clients as needed, each with their own individual key.

import (
	"github.com/stripe/stripe-go"
	"github.com/stripe/stripe-go/client"
)

// Setup
sc := &client.API{}
sc.Init("sk_key", nil) // the second parameter overrides the backends used if needed for mocking

// Create
$resource$, err := sc.$Resource$s.New(stripe.$Resource$Params)

// Get
$resource$, err := sc.$Resource$s.Get(id, stripe.$Resource$Params)

// Update
$resource$, err := sc.$Resource$s.Update(stripe.$Resource$Params)

// Delete
resourceDeleted, err := sc.$Resource$s.Del(id, stripe.$Resource$Params)

// List
i := sc.$Resource$s.List(stripe.$Resource$ListParams)
for i.Next() {
	resource := i.$Resource$()
}

if err := i.Err(); err != nil {
	// handle
}

Configuring Automatic Retries

You can enable automatic retries on requests that fail due to a transient problem by configuring the maximum number of retries:

import (
	"github.com/stripe/stripe-go"
	"github.com/stripe/stripe-go/client"
)

config := &stripe.BackendConfig{
    MaxNetworkRetries: 2,
}

sc := &client.API{}
sc.Init("sk_key", &stripe.Backends{
    API:     stripe.GetBackendWithConfig(stripe.APIBackend, config),
    Uploads: stripe.GetBackendWithConfig(stripe.UploadsBackend, config),
})

coupon, err := sc.Coupons.New(...)

Various errors can trigger a retry, like a connection error or a timeout, and also certain API responses like HTTP status 409 Conflict.

Idempotency keys are added to requests to guarantee that retries are safe.

Configuring Logging

Configure logging using the global DefaultLeveledLogger variable:

stripe.DefaultLeveledLogger = &stripe.LeveledLogger{
    Level: stripe.LevelInfo,
}

Or on a per-backend basis:

config := &stripe.BackendConfig{
    LeveledLogger: &stripe.LeveledLogger{
        Level: stripe.LevelInfo,
    },
}

It's possible to use non-Stripe leveled loggers as well. Stripe expects loggers to comply to the following interface:

type LeveledLoggerInterface interface {
	Debugf(format string, v ...interface{})
	Errorf(format string, v ...interface{})
	Infof(format string, v ...interface{})
	Warnf(format string, v ...interface{})
}

Some loggers like Logrus support this interface out-of-the-box so it's possible to set DefaultLeveledLogger to a *logrus.Logger directly. For others (Zap for example) it'll be necessary to write a thin shim layer to support them.

Writing a Plugin

If you're writing a plugin that uses the library, we'd appreciate it if you identified using stripe.SetAppInfo:

stripe.SetAppInfo(&stripe.AppInfo{
    Name:    "MyAwesomePlugin",
    URL:     "https://myawesomeplugin.info",
    Version: "1.2.34",
})

This information is passed along when the library makes calls to the Stripe API. Note that while Name is always required, URL and Version are optional.

Request latency telemetry

By default, the library sends request latency telemetry to Stripe. These numbers help Stripe improve the overall latency of its API for all users.

You can disable this behavior if you prefer:

config := &stripe.BackendConfig{
	EnableTelemetry: false,
}

Development

Pull requests from the community are welcome. If you submit one, please keep the following guidelines in mind:

Code must be go fmt compliant.
All types, structs and funcs should be documented.
Ensure that make test succeeds.

Test

The test suite needs testify's require package to run:

github.com/stretchr/testify/require

Before running the tests, make sure to grab all of the package's dependencies:

go get -t -v

It also depends on stripe-mock, so make sure to fetch and run it from a background terminal (stripe-mock's README also contains instructions for installing via Homebrew and other methods):

go get -u github.com/stripe/stripe-mock
stripe-mock

Run all tests:

make test

Run tests for one package:

go test ./invoice

Run a single test:

go test ./invoice -run TestInvoiceGet

For any requests, bug or comments, please open an issue or submit a pull request.

slagiewka/stripe-go