Add support for the BillingPortal namespace and the Session API and resource

.travis.yml

@@ -32,7 +32,7 @@ cache:
 env:
   global:
     # If changing this number, please also change it in `testing/testing.go`.
-    - STRIPE_MOCK_VERSION=0.87.0
+    - STRIPE_MOCK_VERSION=0.88.0
 
 go:
   - "1.10.x"

billingportal/session/client.go

@@ -0,0 +1,30 @@
+// Package session provides API functions related to billing portal sessions.
+package session
+
+import (
+	"net/http"
+
+	stripe "github.com/stripe/stripe-go/v71"
+)
+
+// Client is used to invoke /billing_portal/sessions APIs.
+type Client struct {
+	B   stripe.Backend
+	Key string
+}
+
+// New creates a new session.
+func New(params *stripe.BillingPortalSessionParams) (*stripe.BillingPortalSession, error) {
+	return getC().New(params)
+}
+
+// New creates a new session.
+func (c Client) New(params *stripe.BillingPortalSessionParams) (*stripe.BillingPortalSession, error) {
+	session := &stripe.BillingPortalSession{}
+	err := c.B.Call(http.MethodPost, "/v1/billing_portal/sessions", c.Key, params, session)
+	return session, err
+}
+
+func getC() Client {
+	return Client{stripe.GetBackend(stripe.APIBackend), stripe.Key}
+}

billingportal/session/client_test.go

@@ -0,0 +1,18 @@
+package session
+
+import (
+	"testing"
+
+	assert "github.com/stretchr/testify/require"
+	stripe "github.com/stripe/stripe-go/v71"
+	_ "github.com/stripe/stripe-go/v71/testing"
+)
+
+func TestBillingPortalSessionNew(t *testing.T) {
+	session, err := New(&stripe.BillingPortalSessionParams{
+		Customer:  stripe.String("cus_123"),
+		ReturnURL: stripe.String("https://stripe.com/return"),
+	})
+	assert.Nil(t, err)
+	assert.NotNil(t, session)
+}

billingportal_session.go

@@ -0,0 +1,43 @@
+package stripe
+
+import (
+	"encoding/json"
+)
+
+// BillingPortalSessionParams is the set of parameters that can be used when creating a billing portal session.
+type BillingPortalSessionParams struct {
+	Params    `form:"*"`
+	Customer  *string `form:"customer"`
+	ReturnURL *string `form:"return_url"`
+}
+
+// BillingPortalSession is the resource representing a billing portal session.
+type BillingPortalSession struct {
+	APIResource
+	Created   int64  `json:"created"`
+	Customer  string `json:"customer"`
+	ID        string `json:"id"`
+	Livemode  bool   `json:"livemode"`
+	Object    string `json:"object"`
+	ReturnURL string `json:"return_url"`
+	URL       string `json:"url"`
+}
+
+// UnmarshalJSON handles deserialization of a billing portal session.
+// This custom unmarshaling is needed because the resulting
+// property may be an id or the full struct if it was expanded.
+func (p *BillingPortalSession) UnmarshalJSON(data []byte) error {
+	if id, ok := ParseID(data); ok {
+		p.ID = id
+		return nil
+	}
+
+	type session BillingPortalSession
+	var v session
+	if err := json.Unmarshal(data, &v); err != nil {
+		return err
+	}
+
+	*p = BillingPortalSession(v)
+	return nil
+}

client/api.go

@@ -9,6 +9,7 @@ import (
 	"github.com/stripe/stripe-go/v71/balance"
 	"github.com/stripe/stripe-go/v71/balancetransaction"
 	"github.com/stripe/stripe-go/v71/bankaccount"
+	billingportalsession "github.com/stripe/stripe-go/v71/billingportal/session"
 	"github.com/stripe/stripe-go/v71/bitcoinreceiver"
 	"github.com/stripe/stripe-go/v71/bitcointransaction"
 	"github.com/stripe/stripe-go/v71/capability"
@@ -93,6 +94,8 @@ type API struct {
 	BalanceTransaction *balancetransaction.Client
 	// BankAccounts is the client used to invoke bank account related APIs.
 	BankAccounts *bankaccount.Client
+	// BillingPortalSessions is the client used to invoke /billing_portal/sessions APIs.
+	BillingPortalSessions *billingportalsession.Client
 	// BitcoinReceivers is the client used to invoke /bitcoin/receivers APIs.
 	BitcoinReceivers *bitcoinreceiver.Client
 	// BitcoinTransactions is the client used to invoke /bitcoin/transactions APIs.
@@ -103,7 +106,7 @@ type API struct {
 	Cards *card.Client
 	// Charges is the client used to invoke /charges APIs.
 	Charges *charge.Client
-	// CheckoutSessions is the client used to invoke /checkout_sessions APIs.
+	// CheckoutSessions is the client used to invoke /checkout/sessions APIs.
 	CheckoutSessions *checkoutsession.Client
 	// CountrySpec is the client used to invoke /country_specs APIs.
 	CountrySpec *countryspec.Client
@@ -248,6 +251,7 @@ func (a *API) Init(key string, backends *stripe.Backends) {
 	a.Balance = &balance.Client{B: backends.API, Key: key}
 	a.BalanceTransaction = &balancetransaction.Client{B: backends.API, Key: key}
 	a.BankAccounts = &bankaccount.Client{B: backends.API, Key: key}
+	a.BillingPortalSessions = &billingportalsession.Client{B: backends.API, Key: key}
 	a.BitcoinReceivers = &bitcoinreceiver.Client{B: backends.API, Key: key}
 	a.BitcoinTransactions = &bitcointransaction.Client{B: backends.API, Key: key}
 	a.Capabilities = &capability.Client{B: backends.API, Key: key}

testing/testing.go

@@ -25,7 +25,7 @@ const (
 	// added in a more recent version of stripe-mock, we can show people a
 	// better error message instead of the test suite crashing with a bunch of
 	// confusing 404 errors or the like.
-	MockMinimumVersion = "0.87.0"
+	MockMinimumVersion = "0.88.0"
 
 	// TestMerchantID is a token that can be used to represent a merchant ID in
 	// simple tests.