From aa29cda61f0cf5549199dbd9ef05c29635035dc9 Mon Sep 17 00:00:00 2001
From: jordancco <jordancco@users.noreply.github.com>
Date: Mon, 25 Mar 2019 14:38:48 +0100
Subject: [PATCH 01/10] Update notification.go

Added new const NotificationTypeDidChangeRenewalStatus
---
 appstore/notification.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/appstore/notification.go b/appstore/notification.go
index 9637a5d..4c3df6f 100644
--- a/appstore/notification.go
+++ b/appstore/notification.go
@@ -14,6 +14,8 @@ const (
 	NotificationTypeInteractiveRenewal NotificationType = "INTERACTIVE_RENEWAL"
 	// Customer changed the plan that takes affect at the next subscription renewal. Current active plan is not affected.
 	NotificationTypeDidChangeRenewalPreference NotificationType = "DID_CHANGE_RENEWAL_PREF"
+	// Customer changed the subscription renewal status. Current active plan is not affected.
+	NotificationTypeDidChangeRenewalStatus NotificationType = "DID_CHANGE_RENEWAL_STATUS"
 )
 
 type NotificationEnvironment string

From 46a2f52ca6d1746494e44e7e45bcbb660e3555a4 Mon Sep 17 00:00:00 2001
From: Owen <ojracc@gmail.com>
Date: Wed, 24 Apr 2019 11:31:19 -0400
Subject: [PATCH 02/10] Return errors from JSON encode/decode

I found two JSON errors being shadowed; the one in amazon/validator.go
is being hidden by errors.New(responseError.Message) -- which should be
an empty string if there's a JSON error. So, it wouldn't report success,
but this gives the caller better information on what failed.

The second is in appstore/validator.go, which was ignoring encode errors
before POSTing a verify request.
---
 amazon/validator.go   | 3 +++
 appstore/validator.go | 4 +++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/amazon/validator.go b/amazon/validator.go
index 46a29c1..ea32c8f 100644
--- a/amazon/validator.go
+++ b/amazon/validator.go
@@ -102,6 +102,9 @@ func (c *Client) Verify(ctx context.Context, userID string, receiptID string) (I
 	if resp.StatusCode < 200 || resp.StatusCode >= 300 {
 		responseError := IAPResponseError{}
 		err = json.NewDecoder(resp.Body).Decode(&responseError)
+		if err != nil {
+			return result, err
+		}
 		return result, errors.New(responseError.Message)
 	}
 
diff --git a/appstore/validator.go b/appstore/validator.go
index 1a0ff80..4786f01 100644
--- a/appstore/validator.go
+++ b/appstore/validator.go
@@ -98,7 +98,9 @@ func NewWithClient(client *http.Client) *Client {
 // Verify sends receipts and gets validation result
 func (c *Client) Verify(ctx context.Context, reqBody IAPRequest, result interface{}) error {
 	b := new(bytes.Buffer)
-	json.NewEncoder(b).Encode(reqBody)
+	if err := json.NewEncoder(b).Encode(reqBody); err != nil {
+		return err
+	}
 
 	req, err := http.NewRequest("POST", c.ProductionURL, b)
 	if err != nil {

From 92d56725f73ca25135dae914daaf17dabe074eeb Mon Sep 17 00:00:00 2001
From: Owen <ojracc@gmail.com>
Date: Wed, 24 Apr 2019 11:36:47 -0400
Subject: [PATCH 03/10] Unwrap error in Amazon validator

In amazon/validator.go, an error was being wrapped by fmt.Errorf("%v",
err). That discards any type information about the returned error;
returning err lets the callers inspect the exact error returned by the
HTTP client.

The test had to change to do similar inspection.
---
 amazon/validator.go      |  2 +-
 amazon/validator_test.go | 13 ++++++++++---
 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/amazon/validator.go b/amazon/validator.go
index ea32c8f..0a3eb68 100644
--- a/amazon/validator.go
+++ b/amazon/validator.go
@@ -95,7 +95,7 @@ func (c *Client) Verify(ctx context.Context, userID string, receiptID string) (I
 
 	resp, err := c.httpCli.Do(req)
 	if err != nil {
-		return result, fmt.Errorf("%v", err)
+		return result, err
 	}
 	defer resp.Body.Close()
 
diff --git a/amazon/validator_test.go b/amazon/validator_test.go
index 4bc9629..1cc80cb 100644
--- a/amazon/validator_test.go
+++ b/amazon/validator_test.go
@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"net/http"
 	"net/http/httptest"
+	"net/url"
 	"os"
 	"reflect"
 	"testing"
@@ -143,11 +144,17 @@ func TestVerifyTimeout(t *testing.T) {
 	server, client := testTools(100, "timeout response")
 	defer server.Close()
 
-	expected := errors.New("")
 	ctx := context.Background()
 	_, actual := client.Verify(ctx, "timeout", "timeout")
-	if !reflect.DeepEqual(reflect.TypeOf(actual), reflect.TypeOf(expected)) {
-		t.Errorf("got %v\nwant %v", actual, expected)
+
+	// Actual should be a "request canceled" *url.Error
+	urlErr, ok := actual.(*url.Error)
+	if !ok {
+		t.Errorf("Expected *url.Error, got %T", actual)
+	}
+
+	if !urlErr.Timeout() {
+		t.Errorf("got %v\nwant timeout", actual)
 	}
 }
 

From ab2fbeeea577ddd35a89c6e3dd64abe31aa6a186 Mon Sep 17 00:00:00 2001
From: jordanco <jordanco@inplayer.com>
Date: Tue, 21 May 2019 10:24:53 +0200
Subject: [PATCH 04/10] Added missing RVS Response Fields

---
 amazon/validator.go      |  6 ++++++
 amazon/validator_test.go | 34 +++++++++++++++++++++++++++++++++-
 2 files changed, 39 insertions(+), 1 deletion(-)

diff --git a/amazon/validator.go b/amazon/validator.go
index 46a29c1..0ac5f0e 100644
--- a/amazon/validator.go
+++ b/amazon/validator.go
@@ -31,8 +31,14 @@ type IAPResponse struct {
 	ProductType     string `json:"productType"`
 	ProductID       string `json:"productId"`
 	PurchaseDate    int64  `json:"purchaseDate"`
+	RenewalDate     int64  `json:"renewalDate"`
 	CancelDate      int64  `json:"cancelDate"`
 	TestTransaction bool   `json:"testTransaction"`
+	BetaProduct     bool   `json:"betaProduct"`
+	ParentProductID string `json:"parentProductId"`
+	Quantity        int64  `json:"quantity"`
+	Term            string `json:"term"`
+	TermSku         string `json:"termSku"`
 }
 
 // The IAPResponseError typs has error message and status.
diff --git a/amazon/validator_test.go b/amazon/validator_test.go
index 4bc9629..986eeef 100644
--- a/amazon/validator_test.go
+++ b/amazon/validator_test.go
@@ -110,7 +110,38 @@ func TestNewWithClient(t *testing.T) {
 	}
 }
 
-func TestVerify(t *testing.T) {
+func TestVerifySubscription(t *testing.T) {
+	t.Parallel()
+	server, client := testTools(
+		200,
+		"{\"purchaseDate\":1558424877035,\"receiptId\":\"q1YqVrJSSs7P1UvMTazKz9PLTCwoTswtyEktM9JLrShIzCvOzM-LL04tiTdW0lFKASo2NDEwMjCwMDM2MTC0AIqVAsUsLd1c4l18jIxdfTOK_N1d8kqLLHVLc8oK83OLgtPNCit9AoJdjJ3dXG2BGkqUrAxrAQ\",\"productId\":\"com.amazon.iapsamplev2.expansion_set_3\",\"parentProductId\":null,\"productType\":\"SUBSCRIPTION\",\"renewalDate\":1561103277035,\"quantity\":1,\"betaProduct\":false,\"testTransaction\":true,\"term\":\"1 Week\",\"termSku\":\"sub1-weekly\"}",
+	)
+	defer server.Close()
+
+	expected := IAPResponse{
+		ReceiptID:       "q1YqVrJSSs7P1UvMTazKz9PLTCwoTswtyEktM9JLrShIzCvOzM-LL04tiTdW0lFKASo2NDEwMjCwMDM2MTC0AIqVAsUsLd1c4l18jIxdfTOK_N1d8kqLLHVLc8oK83OLgtPNCit9AoJdjJ3dXG2BGkqUrAxrAQ",
+		ProductType:     "SUBSCRIPTION",
+		ProductID:       "com.amazon.iapsamplev2.expansion_set_3",
+		PurchaseDate:    1558424877035,
+		RenewalDate:     1561103277035,
+		CancelDate:      0,
+		TestTransaction: true,
+		Quantity:        1,
+		Term:            "1 Week",
+		TermSku:         "sub1-weekly",
+	}
+
+	actual, _ := client.Verify(
+		context.Background(),
+		"99FD_DL23EMhrOGDnur9-ulvqomrSg6qyLPSD3CFE=",
+		"q1YqVrJSSs7P1UvMTazKz9PLTCwoTswtyEktM9JLrShIzCvOzM-LL04tiTdW0lFKASo2NDEwMjCwMDM2MTC0AIqVAsUsLd1c4l18jIxdfTOK_N1d8kqLLHVLc8oK83OLgtPNCit9AoJdjJ3dXG2BGkqUrAxrAQ",
+	)
+	if !reflect.DeepEqual(actual, expected) {
+		t.Errorf("got %v\nwant %v", actual, expected)
+	}
+}
+
+func TestVerifyEntitled(t *testing.T) {
 	t.Parallel()
 	server, client := testTools(
 		200,
@@ -125,6 +156,7 @@ func TestVerify(t *testing.T) {
 		PurchaseDate:    1402008634018,
 		CancelDate:      0,
 		TestTransaction: true,
+		Quantity:        1,
 	}
 
 	actual, _ := client.Verify(

From b4e4bec42f3487e2c50aab5454e725562e78211b Mon Sep 17 00:00:00 2001
From: Junpei Tsuji <tsuji_jumpei@cyberagent.co.jp>
Date: Thu, 23 May 2019 17:11:14 +0900
Subject: [PATCH 05/10] Use go modules

---
 .travis.yml            |  5 +++-
 README.md              |  2 +-
 appstore/model_test.go |  2 +-
 go.mod                 |  9 +++++++
 go.sum                 | 53 ++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 68 insertions(+), 3 deletions(-)
 create mode 100644 go.mod
 create mode 100644 go.sum

diff --git a/.travis.yml b/.travis.yml
index 3350e94..a085821 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,9 @@
 language: go
 go:
-- 1.11.2
+- 1.12.5
+env:
+  global:
+  - GO111MODULE=on
 before_install:
 - sudo pip install codecov
 install:
diff --git a/README.md b/README.md
index 7b3787f..a97cb77 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 go-iap
 ======
 
-![](https://img.shields.io/badge/golang-1.11-blue.svg?style=flat)
+![](https://img.shields.io/badge/golang-1.12-blue.svg?style=flat)
 [![Build Status](https://travis-ci.org/awa/go-iap.svg?branch=master)](https://travis-ci.org/awa/go-iap)
 [![codecov.io](https://codecov.io/github/awa/go-iap/coverage.svg?branch=master)](https://codecov.io/github/awa/go-iap?branch=master)
 
diff --git a/appstore/model_test.go b/appstore/model_test.go
index 9dec6d2..8b0fb5e 100644
--- a/appstore/model_test.go
+++ b/appstore/model_test.go
@@ -33,7 +33,7 @@ func TestNumericString_UnmarshalJSON(t *testing.T) {
 		{
 			name: "object case",
 			in:   []byte("{\"ID\":{\"Num\": 8080}}"),
-			err:  errors.New("json: cannot unmarshal object into Go value of type json.Number"),
+			err:  errors.New("json: cannot unmarshal object into Go struct field foo.ID of type json.Number"),
 			out:  foo{},
 		},
 	}
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..113bcd5
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,9 @@
+module github.com/awa/go-iap
+
+go 1.12
+
+require (
+	golang.org/x/oauth2 v0.0.0-20190517181255-950ef44c6e07
+	google.golang.org/api v0.5.0
+	google.golang.org/appengine v1.6.0
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..be05385
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,53 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.34.0 h1:eOI3/cP2VTU6uZLDYAoic+eyzzB9YyGmJ7eIjl8rOPg=
+cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
+github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
+github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
+github.com/golang/protobuf v1.2.0 h1:P3YflyNX/ehuJFLhxviNdFxQPkGK5cDcApsge1SqnvM=
+github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
+github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
+github.com/hashicorp/golang-lru v0.5.0 h1:CL2msUPvZTLb5O648aiLNJw3hnBxN2+1Jq8rCOH9wdo=
+github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
+go.opencensus.io v0.21.0 h1:mU6zScU4U1YAFPHEHYk+3JC4SY7JxgkqS10ZOSyksNg=
+go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
+golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
+golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
+golang.org/x/lint v0.0.0-20190301231843-5614ed5bae6f/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
+golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
+golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
+golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
+golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
+golang.org/x/net v0.0.0-20190311183353-d8887717615a h1:oWX7TPOiFAMXLq8o0ikBYfCJVlRHBcsciT5bXOrH628=
+golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
+golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
+golang.org/x/oauth2 v0.0.0-20190517181255-950ef44c6e07 h1:XC1K3wNjuz44KaI+cj85C9TW85w/46RH7J+DTXNH5Wk=
+golang.org/x/oauth2 v0.0.0-20190517181255-950ef44c6e07/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
+golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
+golang.org/x/tools v0.0.0-20190312170243-e65039ee4138/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
+google.golang.org/api v0.5.0 h1:lj9SyhMzyoa38fgFF0oO2T6pjs5IzkLPKfVtxpyCRMM=
+google.golang.org/api v0.5.0/go.mod h1:8k5glujaEP+g9n7WNsDg8QP6cUVNI86fCNMcbazEtwE=
+google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
+google.golang.org/appengine v1.4.0 h1:/wp5JvzpHIxhs/dumFmF7BXTf3Z+dd4uXta4kVyO508=
+google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
+google.golang.org/appengine v1.6.0 h1:Tfd7cKwKbFRsI8RMAD3oqqw7JPFRrvFlOsfbgVkjOOw=
+google.golang.org/appengine v1.6.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
+google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
+google.golang.org/genproto v0.0.0-20190307195333-5fe7a883aa19 h1:Lj2SnHtxkRGJDqnGaSjo+CCdIieEnwVazbOXILwQemk=
+google.golang.org/genproto v0.0.0-20190307195333-5fe7a883aa19/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
+google.golang.org/grpc v1.19.0 h1:cfg4PD8YEdSFnm7qLV4++93WcmhH2nIUhMjhdCvl3j8=
+google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
+honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

From c8899d8d2df8a52918d8714c57bdb912dc30db57 Mon Sep 17 00:00:00 2001
From: Junpei Tsuji <tsuji_jumpei@cyberagent.co.jp>
Date: Thu, 23 May 2019 17:47:36 +0900
Subject: [PATCH 06/10] Update androidpublisher api v3

---
 README.md              |  7 ------
 go.mod                 | 19 ++++++++++++++++
 go.sum                 | 50 ++++++++++++++++++++++++++++++++++++++++++
 playstore/validator.go |  2 +-
 4 files changed, 70 insertions(+), 8 deletions(-)

diff --git a/README.md b/README.md
index a97cb77..282a117 100644
--- a/README.md
+++ b/README.md
@@ -14,13 +14,6 @@ Current API Documents:
 * Amazon AppStore: [![GoDoc](https://godoc.org/github.com/awa/go-iap/amazon?status.svg)](https://godoc.org/github.com/awa/go-iap/amazon)
 
 
-# Dependencies
-```
-go get golang.org/x/oauth2
-go get golang.org/x/oauth2/google
-go get google.golang.org/api/androidpublisher/v2
-```
-
 # Installation
 ```
 go get github.com/awa/go-iap/appstore
diff --git a/go.mod b/go.mod
index 113bcd5..c6ffe98 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,26 @@ module github.com/awa/go-iap
 go 1.12
 
 require (
+	cloud.google.com/go v0.39.0 // indirect
+	github.com/golang/mock v1.3.1 // indirect
+	github.com/google/btree v1.0.0 // indirect
+	github.com/google/go-cmp v0.3.0 // indirect
+	github.com/google/pprof v0.0.0-20190515194954-54271f7e092f // indirect
+	github.com/hashicorp/golang-lru v0.5.1 // indirect
+	golang.org/x/crypto v0.0.0-20190513172903-22d7a77e9e5f // indirect
+	golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522 // indirect
+	golang.org/x/image v0.0.0-20190523035834-f03afa92d3ff // indirect
+	golang.org/x/lint v0.0.0-20190409202823-959b441ac422 // indirect
+	golang.org/x/mobile v0.0.0-20190509164839-32b2708ab171 // indirect
+	golang.org/x/net v0.0.0-20190522155817-f3200d17e092 // indirect
 	golang.org/x/oauth2 v0.0.0-20190517181255-950ef44c6e07
+	golang.org/x/sys v0.0.0-20190522044717-8097e1b27ff5 // indirect
+	golang.org/x/text v0.3.2 // indirect
+	golang.org/x/time v0.0.0-20190308202827-9d24e82272b4 // indirect
+	golang.org/x/tools v0.0.0-20190521203540-521d6ed310dd // indirect
 	google.golang.org/api v0.5.0
 	google.golang.org/appengine v1.6.0
+	google.golang.org/genproto v0.0.0-20190522204451-c2c4e71fbf69 // indirect
+	google.golang.org/grpc v1.21.0 // indirect
+	honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc // indirect
 )
diff --git a/go.sum b/go.sum
index be05385..e2d1906 100644
--- a/go.sum
+++ b/go.sum
@@ -1,28 +1,57 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 cloud.google.com/go v0.34.0 h1:eOI3/cP2VTU6uZLDYAoic+eyzzB9YyGmJ7eIjl8rOPg=
 cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.39.0 h1:UgQP9na6OTfp4dsAiz/eFpFA1C6tPdH5wiRdi19tuMw=
+cloud.google.com/go v0.39.0/go.mod h1:rVLT6fkc8chs9sfPtFc1SBH6em7n+ZoXaG+87tDISts=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
 github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
+github.com/golang/mock v1.2.0/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
+github.com/golang/mock v1.3.1/go.mod h1:sBzyDLLjw3U8JLTeZvSv8jJB+tU5PVekmnlKIyFUx0Y=
 github.com/golang/protobuf v1.2.0 h1:P3YflyNX/ehuJFLhxviNdFxQPkGK5cDcApsge1SqnvM=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
+github.com/golang/protobuf v1.3.1 h1:YF8+flBXS5eO826T4nzqPrxfhQThhXl0YzfuUPu4SBg=
+github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
+github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
+github.com/google/btree v1.0.0/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
+github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
+github.com/google/martian v2.1.0+incompatible/go.mod h1:9I4somxYTbIHy5NJKHRl3wXiIaQGbYVAs8BPL6v8lEs=
+github.com/google/pprof v0.0.0-20181206194817-3ea8567a2e57/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
+github.com/google/pprof v0.0.0-20190515194954-54271f7e092f/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
+github.com/googleapis/gax-go/v2 v2.0.4/go.mod h1:0Wqv26UfaUD9n4G6kQubkQ+KchISgw+vpHVxEJEs9eg=
 github.com/hashicorp/golang-lru v0.5.0 h1:CL2msUPvZTLb5O648aiLNJw3hnBxN2+1Jq8rCOH9wdo=
 github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
+github.com/hashicorp/golang-lru v0.5.1 h1:0hERBMJE1eitiLkihrMvRVBYAkpHzc/J3QdDN+dAcgU=
+github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
+github.com/jstemmer/go-junit-report v0.0.0-20190106144839-af01ea7f8024/go.mod h1:6v2b51hI/fHJwM22ozAgKL4VKDeJcHhJFhtBdhmNjmU=
 go.opencensus.io v0.21.0 h1:mU6zScU4U1YAFPHEHYk+3JC4SY7JxgkqS10ZOSyksNg=
 go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20190513172903-22d7a77e9e5f/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
+golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
+golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
+golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
+golang.org/x/image v0.0.0-20190523035834-f03afa92d3ff/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
 golang.org/x/lint v0.0.0-20190301231843-5614ed5bae6f/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
+golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
+golang.org/x/lint v0.0.0-20190409202823-959b441ac422/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
+golang.org/x/mobile v0.0.0-20190312151609-d3739f865fa6/go.mod h1:z+o9i4GpDbdi3rU15maQ/Ox0txvL9dWGYEHz965HBQE=
+golang.org/x/mobile v0.0.0-20190509164839-32b2708ab171/go.mod h1:E/iHnbuqvinMTCcRqshq8CkpyQDoeVncDDYHnLhea+o=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190311183353-d8887717615a h1:oWX7TPOiFAMXLq8o0ikBYfCJVlRHBcsciT5bXOrH628=
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/net v0.0.0-20190522155817-f3200d17e092 h1:4QSRKanuywn15aTZvI/mIDEgPQpswuFndXpOj3rKEco=
+golang.org/x/net v0.0.0-20190522155817-f3200d17e092/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20190517181255-950ef44c6e07 h1:XC1K3wNjuz44KaI+cj85C9TW85w/46RH7J+DTXNH5Wk=
@@ -31,13 +60,27 @@ golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190312061237-fead79001313/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190522044717-8097e1b27ff5/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
+golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
+golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
+golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
+golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
+golang.org/x/tools v0.0.0-20190312151545-0bb0c0a6e846/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20190312170243-e65039ee4138/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
+golang.org/x/tools v0.0.0-20190425150028-36563e24a262/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
+golang.org/x/tools v0.0.0-20190521203540-521d6ed310dd/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 google.golang.org/api v0.5.0 h1:lj9SyhMzyoa38fgFF0oO2T6pjs5IzkLPKfVtxpyCRMM=
 google.golang.org/api v0.5.0/go.mod h1:8k5glujaEP+g9n7WNsDg8QP6cUVNI86fCNMcbazEtwE=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
@@ -48,6 +91,13 @@ google.golang.org/appengine v1.6.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
 google.golang.org/genproto v0.0.0-20190307195333-5fe7a883aa19 h1:Lj2SnHtxkRGJDqnGaSjo+CCdIieEnwVazbOXILwQemk=
 google.golang.org/genproto v0.0.0-20190307195333-5fe7a883aa19/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
+google.golang.org/genproto v0.0.0-20190508193815-b515fa19cec8/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
+google.golang.org/genproto v0.0.0-20190522204451-c2c4e71fbf69 h1:4rNOqY4ULrKzS6twXa619uQgI7h9PaVd4ZhjFQ7C5zs=
+google.golang.org/genproto v0.0.0-20190522204451-c2c4e71fbf69/go.mod h1:z3L6/3dTEVtUr6QSP8miRzeRqwQOioJ9I66odjN4I7s=
 google.golang.org/grpc v1.19.0 h1:cfg4PD8YEdSFnm7qLV4++93WcmhH2nIUhMjhdCvl3j8=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
+google.golang.org/grpc v1.21.0 h1:G+97AoqBnmZIT91cLG/EkCoK9NSelj64P8bOHHNmGn0=
+google.golang.org/grpc v1.21.0/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
diff --git a/playstore/validator.go b/playstore/validator.go
index 974fde9..ea352e8 100644
--- a/playstore/validator.go
+++ b/playstore/validator.go
@@ -13,7 +13,7 @@ import (
 
 	"golang.org/x/oauth2"
 	"golang.org/x/oauth2/google"
-	androidpublisher "google.golang.org/api/androidpublisher/v2"
+	androidpublisher "google.golang.org/api/androidpublisher/v3"
 )
 
 // The IABClient type is an interface to verify purchase token

From c446edf3c48983b708f0441a14add94c3da5332d Mon Sep 17 00:00:00 2001
From: Junpei Tsuji <tsuji_jumpei@cyberagent.co.jp>
Date: Fri, 31 May 2019 10:47:02 +0900
Subject: [PATCH 07/10] Added acknowledge method for subscription

---
 go.mod                      | 19 +++++++++----------
 go.sum                      | 27 +++++++++++++++++++++++++++
 playstore/validator.go      | 30 +++++++++++++++++++++++++++---
 playstore/validator_test.go | 20 ++++++++++++++++++++
 4 files changed, 83 insertions(+), 13 deletions(-)

diff --git a/go.mod b/go.mod
index c6ffe98..e3fa646 100644
--- a/go.mod
+++ b/go.mod
@@ -6,23 +6,22 @@ require (
 	cloud.google.com/go v0.39.0 // indirect
 	github.com/golang/mock v1.3.1 // indirect
 	github.com/google/btree v1.0.0 // indirect
-	github.com/google/go-cmp v0.3.0 // indirect
 	github.com/google/pprof v0.0.0-20190515194954-54271f7e092f // indirect
-	github.com/hashicorp/golang-lru v0.5.1 // indirect
-	golang.org/x/crypto v0.0.0-20190513172903-22d7a77e9e5f // indirect
+	github.com/kr/pty v1.1.4 // indirect
+	go.opencensus.io v0.22.0 // indirect
+	golang.org/x/crypto v0.0.0-20190530122614-20be4c3c3ed5 // indirect
 	golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522 // indirect
 	golang.org/x/image v0.0.0-20190523035834-f03afa92d3ff // indirect
 	golang.org/x/lint v0.0.0-20190409202823-959b441ac422 // indirect
 	golang.org/x/mobile v0.0.0-20190509164839-32b2708ab171 // indirect
 	golang.org/x/net v0.0.0-20190522155817-f3200d17e092 // indirect
-	golang.org/x/oauth2 v0.0.0-20190517181255-950ef44c6e07
-	golang.org/x/sys v0.0.0-20190522044717-8097e1b27ff5 // indirect
-	golang.org/x/text v0.3.2 // indirect
+	golang.org/x/oauth2 v0.0.0-20190523182746-aaccbc9213b0
+	golang.org/x/sys v0.0.0-20190530182044-ad28b68e88f1 // indirect
 	golang.org/x/time v0.0.0-20190308202827-9d24e82272b4 // indirect
-	golang.org/x/tools v0.0.0-20190521203540-521d6ed310dd // indirect
-	google.golang.org/api v0.5.0
+	golang.org/x/tools v0.0.0-20190530215528-75312fb06703 // indirect
+	google.golang.org/api v0.5.1-0.20190526001144-9f3a303b451f
 	google.golang.org/appengine v1.6.0
-	google.golang.org/genproto v0.0.0-20190522204451-c2c4e71fbf69 // indirect
+	google.golang.org/genproto v0.0.0-20190530194941-fb225487d101 // indirect
 	google.golang.org/grpc v1.21.0 // indirect
-	honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc // indirect
+	honnef.co/go/tools v0.0.0-20190530170028-a1efa522b896 // indirect
 )
diff --git a/go.sum b/go.sum
index e2d1906..d5515bc 100644
--- a/go.sum
+++ b/go.sum
@@ -21,16 +21,27 @@ github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMyw
 github.com/google/martian v2.1.0+incompatible/go.mod h1:9I4somxYTbIHy5NJKHRl3wXiIaQGbYVAs8BPL6v8lEs=
 github.com/google/pprof v0.0.0-20181206194817-3ea8567a2e57/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
 github.com/google/pprof v0.0.0-20190515194954-54271f7e092f/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
+github.com/google/renameio v0.1.0/go.mod h1:KWCgfxg9yswjAJkECMjeO8J8rahYeXnNhOm40UhjYkI=
 github.com/googleapis/gax-go/v2 v2.0.4/go.mod h1:0Wqv26UfaUD9n4G6kQubkQ+KchISgw+vpHVxEJEs9eg=
 github.com/hashicorp/golang-lru v0.5.0 h1:CL2msUPvZTLb5O648aiLNJw3hnBxN2+1Jq8rCOH9wdo=
 github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
 github.com/hashicorp/golang-lru v0.5.1 h1:0hERBMJE1eitiLkihrMvRVBYAkpHzc/J3QdDN+dAcgU=
 github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
 github.com/jstemmer/go-junit-report v0.0.0-20190106144839-af01ea7f8024/go.mod h1:6v2b51hI/fHJwM22ozAgKL4VKDeJcHhJFhtBdhmNjmU=
+github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
+github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
+github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
+github.com/kr/pty v1.1.4/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
+github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
+github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
 go.opencensus.io v0.21.0 h1:mU6zScU4U1YAFPHEHYk+3JC4SY7JxgkqS10ZOSyksNg=
 go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=
+go.opencensus.io v0.22.0 h1:C9hSCOW830chIVkdja34wa6Ky+IzWllkUinR+BtRZd4=
+go.opencensus.io v0.22.0/go.mod h1:+kGneAE2xo2IficOXnaByMWTGM9T73dGwxeWcUqIpI8=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20190513172903-22d7a77e9e5f/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
+golang.org/x/crypto v0.0.0-20190530122614-20be4c3c3ed5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
@@ -43,6 +54,7 @@ golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHl
 golang.org/x/lint v0.0.0-20190409202823-959b441ac422/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/mobile v0.0.0-20190312151609-d3739f865fa6/go.mod h1:z+o9i4GpDbdi3rU15maQ/Ox0txvL9dWGYEHz965HBQE=
 golang.org/x/mobile v0.0.0-20190509164839-32b2708ab171/go.mod h1:E/iHnbuqvinMTCcRqshq8CkpyQDoeVncDDYHnLhea+o=
+golang.org/x/mod v0.0.0-20190513183733-4bf6d317e70e/go.mod h1:mXi4GBBbnImb6dmsKGUJ2LatrhH/nqhxcFungHvyanc=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -50,12 +62,15 @@ golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73r
 golang.org/x/net v0.0.0-20190311183353-d8887717615a h1:oWX7TPOiFAMXLq8o0ikBYfCJVlRHBcsciT5bXOrH628=
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/net v0.0.0-20190501004415-9ce7a6920f09/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190522155817-f3200d17e092 h1:4QSRKanuywn15aTZvI/mIDEgPQpswuFndXpOj3rKEco=
 golang.org/x/net v0.0.0-20190522155817-f3200d17e092/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20190517181255-950ef44c6e07 h1:XC1K3wNjuz44KaI+cj85C9TW85w/46RH7J+DTXNH5Wk=
 golang.org/x/oauth2 v0.0.0-20190517181255-950ef44c6e07/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
+golang.org/x/oauth2 v0.0.0-20190523182746-aaccbc9213b0 h1:xFEXbcD0oa/xhqQmMXztdZ0bWvexAWds+8c1gRN8nu0=
+golang.org/x/oauth2 v0.0.0-20190523182746-aaccbc9213b0/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -65,7 +80,9 @@ golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5h
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190312061237-fead79001313/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190502145724-3ef323f4f1fd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190522044717-8097e1b27ff5/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190530182044-ad28b68e88f1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
@@ -81,8 +98,11 @@ golang.org/x/tools v0.0.0-20190312151545-0bb0c0a6e846/go.mod h1:LCzVGOaR6xXOjkQ3
 golang.org/x/tools v0.0.0-20190312170243-e65039ee4138/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20190425150028-36563e24a262/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/tools v0.0.0-20190521203540-521d6ed310dd/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
+golang.org/x/tools v0.0.0-20190530215528-75312fb06703/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
 google.golang.org/api v0.5.0 h1:lj9SyhMzyoa38fgFF0oO2T6pjs5IzkLPKfVtxpyCRMM=
 google.golang.org/api v0.5.0/go.mod h1:8k5glujaEP+g9n7WNsDg8QP6cUVNI86fCNMcbazEtwE=
+google.golang.org/api v0.5.1-0.20190526001144-9f3a303b451f h1:tAgkkP6ovjCY8HraRtpXwh0CVqHwGqEAVLHwXyfFjIM=
+google.golang.org/api v0.5.1-0.20190526001144-9f3a303b451f/go.mod h1:8k5glujaEP+g9n7WNsDg8QP6cUVNI86fCNMcbazEtwE=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/appengine v1.4.0 h1:/wp5JvzpHIxhs/dumFmF7BXTf3Z+dd4uXta4kVyO508=
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
@@ -91,13 +111,20 @@ google.golang.org/appengine v1.6.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
 google.golang.org/genproto v0.0.0-20190307195333-5fe7a883aa19 h1:Lj2SnHtxkRGJDqnGaSjo+CCdIieEnwVazbOXILwQemk=
 google.golang.org/genproto v0.0.0-20190307195333-5fe7a883aa19/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
+google.golang.org/genproto v0.0.0-20190425155659-357c62f0e4bb/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
 google.golang.org/genproto v0.0.0-20190508193815-b515fa19cec8/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
 google.golang.org/genproto v0.0.0-20190522204451-c2c4e71fbf69 h1:4rNOqY4ULrKzS6twXa619uQgI7h9PaVd4ZhjFQ7C5zs=
 google.golang.org/genproto v0.0.0-20190522204451-c2c4e71fbf69/go.mod h1:z3L6/3dTEVtUr6QSP8miRzeRqwQOioJ9I66odjN4I7s=
+google.golang.org/genproto v0.0.0-20190530194941-fb225487d101 h1:wuGevabY6r+ivPNagjUXGGxF+GqgMd+dBhjsxW4q9u4=
+google.golang.org/genproto v0.0.0-20190530194941-fb225487d101/go.mod h1:z3L6/3dTEVtUr6QSP8miRzeRqwQOioJ9I66odjN4I7s=
 google.golang.org/grpc v1.19.0 h1:cfg4PD8YEdSFnm7qLV4++93WcmhH2nIUhMjhdCvl3j8=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
+google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
 google.golang.org/grpc v1.21.0 h1:G+97AoqBnmZIT91cLG/EkCoK9NSelj64P8bOHHNmGn0=
 google.golang.org/grpc v1.21.0/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
+gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190530170028-a1efa522b896/go.mod h1:wtc9q0E9zm8PjdRMh29DPlTlCCHVzKDwnkT4GskQVzg=
diff --git a/playstore/validator.go b/playstore/validator.go
index ea352e8..cffbeb1 100644
--- a/playstore/validator.go
+++ b/playstore/validator.go
@@ -16,10 +16,15 @@ import (
 	androidpublisher "google.golang.org/api/androidpublisher/v3"
 )
 
-// The IABClient type is an interface to verify purchase token
-type IABClient interface {
-	VerifySubscription(context.Context, string, string, string) (*androidpublisher.SubscriptionPurchase, error)
+// The IABProduct type is an interface for product service
+type IABProduct interface {
 	VerifyProduct(context.Context, string, string, string) (*androidpublisher.ProductPurchase, error)
+}
+
+// The IABSubscription type is an interface  for subscription service
+type IABSubscription interface {
+	AcknowledgeSubscription(context.Context, string, string, string, *androidpublisher.SubscriptionPurchasesAcknowledgeRequest) error
+	VerifySubscription(context.Context, string, string, string) (*androidpublisher.SubscriptionPurchase, error)
 	CancelSubscription(context.Context, string, string, string) error
 	RefundSubscription(context.Context, string, string, string) error
 	RevokeSubscription(context.Context, string, string, string) error
@@ -53,6 +58,25 @@ func NewWithClient(jsonKey []byte, cli *http.Client) (*Client, error) {
 	return &Client{conf.Client(ctx)}, err
 }
 
+// AcknowledgeSubscription acknowledges a subscription purchase.
+func (c *Client) AcknowledgeSubscription(
+	ctx context.Context,
+	packageName string,
+	subscriptionID string,
+	token string,
+	req *androidpublisher.SubscriptionPurchasesAcknowledgeRequest,
+) error {
+	service, err := androidpublisher.New(c.httpCli)
+	if err != nil {
+		return err
+	}
+
+	ps := androidpublisher.NewPurchasesSubscriptionsService(service)
+	err = ps.Acknowledge(packageName, subscriptionID, token, req).Context(ctx).Do()
+
+	return err
+}
+
 // VerifySubscription verifies subscription status
 func (c *Client) VerifySubscription(
 	ctx context.Context,
diff --git a/playstore/validator_test.go b/playstore/validator_test.go
index 1f50452..6677c49 100644
--- a/playstore/validator_test.go
+++ b/playstore/validator_test.go
@@ -8,6 +8,7 @@ import (
 	"testing"
 
 	"golang.org/x/oauth2"
+	androidpublisher "google.golang.org/api/androidpublisher/v3"
 	"google.golang.org/appengine/urlfetch"
 )
 
@@ -70,6 +71,25 @@ func TestNewWithClient(t *testing.T) {
 	}
 }
 
+func TestAcknowledgeSubscription(t *testing.T) {
+	t.Parallel()
+	// Exception scenario
+	expected := "googleapi: Error 404: No application was found for the given package name., applicationNotFound"
+
+	client, _ := New(jsonKey)
+	ctx := context.Background()
+	req := &androidpublisher.SubscriptionPurchasesAcknowledgeRequest{
+		DeveloperPayload: "user001",
+	}
+	err := client.AcknowledgeSubscription(ctx, "package", "subscriptionID", "purchaseToken", req)
+
+	if err.Error() != expected {
+		t.Errorf("got %v\nwant %v", err, expected)
+	}
+
+	// TODO Normal scenario
+}
+
 func TestVerifySubscription(t *testing.T) {
 	t.Parallel()
 	// Exception scenario

From 7ef252fde0e2f8e22b693356a0d4445c97aa0a7f Mon Sep 17 00:00:00 2001
From: Minhaz Ahmed Syrus <msyrus@gmail.com>
Date: Tue, 6 Nov 2018 14:25:38 +0600
Subject: [PATCH 08/10] Add missing notification verification fields

---
 appstore/notification.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/appstore/notification.go b/appstore/notification.go
index 4c3df6f..19af79e 100644
--- a/appstore/notification.go
+++ b/appstore/notification.go
@@ -71,9 +71,13 @@ type SubscriptionNotification struct {
 	ExpirationIntent string `json:"expiration_intent"`
 
 	// Auto renew info
-	AutoRenewStatus    string `json:"auto_renew_status"` // false or true
+	AutoRenewStatus    int    `json:"auto_renew_status"` // false or true
 	AutoRenewProductID string `json:"auto_renew_product_id"`
 
+	// HACK (msyrus): Separate Subscriptiton Notification from Notification verification response
+	Status  int                 `json:"status"`
+	Receipt NotificationReceipt `json:"recipt"`
+
 	// Posted if the notification_type is RENEWAL or INTERACTIVE_RENEWAL, and only if the renewal is successful.
 	// Posted also if the notification_type is INITIAL_BUY.
 	// Not posted for notification_type CANCEL.

From 1877c0ae24bca4f7440c9a7ee928b76b399b8934 Mon Sep 17 00:00:00 2001
From: Minhaz Ahmed Syrus <msyrus@gmail.com>
Date: Tue, 6 Nov 2018 16:58:05 +0600
Subject: [PATCH 09/10] Add missing subscription billing retry flag

---
 appstore/notification.go | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/appstore/notification.go b/appstore/notification.go
index 19af79e..4c2b680 100644
--- a/appstore/notification.go
+++ b/appstore/notification.go
@@ -75,8 +75,9 @@ type SubscriptionNotification struct {
 	AutoRenewProductID string `json:"auto_renew_product_id"`
 
 	// HACK (msyrus): Separate Subscriptiton Notification from Notification verification response
-	Status  int                 `json:"status"`
-	Receipt NotificationReceipt `json:"recipt"`
+	Status                int                 `json:"status"`
+	Receipt               NotificationReceipt `json:"recipt"`
+	SubscriptionRetryFlag string              `json:"is_in_billing_retry_period"`
 
 	// Posted if the notification_type is RENEWAL or INTERACTIVE_RENEWAL, and only if the renewal is successful.
 	// Posted also if the notification_type is INITIAL_BUY.

From ff9fd778a3d2e57e68840c3722aaa7632e6b7a1d Mon Sep 17 00:00:00 2001
From: sanjid133 <sanjid133@gmail.com>
Date: Thu, 1 Aug 2019 17:46:48 +0600
Subject: [PATCH 10/10] Add missing is_upgrade field

---
 appstore/model.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/appstore/model.go b/appstore/model.go
index 58c8eb1..0561631 100644
--- a/appstore/model.go
+++ b/appstore/model.go
@@ -93,6 +93,7 @@ type (
 
 		CancellationDate
 		CancellationReason string `json:"cancellation_reason,omitempty"`
+		IsUpgraded         string `json:"is_upgraded,omitempty"`
 	}
 
 	// The Receipt type has whole data of receipt