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Go Stripe

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Summary

The official Stripe Go client library.

Versioning

Each revision of the binding is tagged and the version is updated accordingly.

Given Go's lack of built-in versioning, it is highly recommended you use a package management tool in order to ensure a newer version of the binding does not affect backwards compatibility.

To see the list of past versions, run git tag. To manually get an older version of the client, clone this repo, checkout the specific tag and build the library:

git clone https://github.com/stripe/stripe-go.git
cd stripe-go
git checkout api_version_tag
make build

For more details on changes between versions, see the binding changelog and API changelog.

Installation

go get github.com/stripe/stripe-go

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{
	Balance:     stripe.Int64(-123),
	Description: stripe.String("Stripe Developer"),
	Email:       stripe.String("[email protected]"),
}
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
}

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.

Development

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

  1. Code must be go fmt compliant.
  2. All types, structs and funcs should be documented.
  3. 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:

go 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.