ducky/subscriptions

Paddy 2015-07-18 Parent:8eb19bcbf17d Child:7eef47ecc01c

10:2c8250237566 Go to Latest

ducky/subscriptions/client/client.go

Update subscription_creator to use the new strategy. When creating subscriptions through the client, detect when the returned error is saying the account already has a subscription, or the subscription already exists in stripe. Add an UpdateSubscription function that will update a subscription through the API. Update our subscription_creator listener to listen for profile creation and login verification messages. This mainly involved fixing the constants (the system, model, and topic) that the listener for profile creation was listening for. It also meant adding a new updateMessageHandler that listens for login verification, tries to create a subscription that has the user ID and email of the login that was verified, and if a subscription already exists, updates it instead to use the email address that was just verified. This will ensure that users get their receipts automatically emailed to them by Stripe.

Download raw file
View source Diff to previous Annotate
History
1 package client
2
3 import (
4 "bytes"
5 "encoding/json"
6 "errors"
7 "fmt"
8 "io"
9 "net/http"
10 "strings"
11 "time"
12
13 commonAPI "code.secondbit.org/api.hg"
14 "code.secondbit.org/uuid.hg"
15
16 "code.secondbit.org/ducky/subscriptions.hg/api"
17 )
18
19 var (
20 ErrNilClient = errors.New("nil client wrapper")
21 ErrNilHTTPClient = errors.New("nil client")
22 )
23
24 type Client struct {
25 client *http.Client
26 address string
27 ID uuid.ID
28 }
29
30 func New(address string, id uuid.ID) *Client {
31 address = strings.TrimRight(address, "/")
32 return &Client{
33 address: address,
34 client: &http.Client{},
35 ID: id,
36 }
37 }
38
39 func (c *Client) do(method, url string, request interface{}, scopes []string, subject uuid.ID) (api.Response, error) {
40 if c == nil {
41 return api.Response{}, ErrNilClient
42 }
43 if c.client == nil {
44 return api.Response{}, ErrNilHTTPClient
45 }
46 var response api.Response
47 if !strings.HasPrefix(url, "http") {
48 url = strings.TrimLeft(url, "/")
49 url = "/" + url
50 url = c.address + url
51 }
52 var body io.Reader
53 if request != nil {
54 data, err := json.Marshal(request)
55 if err != nil {
56 return response, err
57 }
58 body = bytes.NewBuffer(data)
59 }
60 req, err := http.NewRequest(method, url, body)
61 if err != nil {
62 return response, err
63 }
64 req.Header.Set("Ducky-Scope", strings.Join(scopes, " "))
65 req.Header.Set("Ducky-Issuer", c.ID.String())
66 if subject != nil {
67 req.Header.Set("Ducky-Subject", subject.String())
68 }
69 req.Header.Set("Ducky-Expires", time.Now().Add(time.Hour).String())
70 req.Header.Set("Ducky-Issued-At", time.Now().String())
71 req.Header.Set("Ducky-Not-Before", time.Now().Add(-5*time.Minute).String())
72 resp, err := c.client.Do(req)
73 if err != nil {
74 return response, err
75 }
76 defer resp.Body.Close()
77 switch resp.Header.Get("Content-Type") {
78 case "application/json":
79 dec := json.NewDecoder(resp.Body)
80 err = dec.Decode(&response)
81 if err != nil {
82 return response, err
83 }
84 default:
85 dec := json.NewDecoder(resp.Body)
86 err = dec.Decode(&response)
87 if err != nil {
88 return response, err
89 }
90 }
91 if len(response.Errors) > 0 {
92 return response, httpErrors(response.Errors)
93 }
94 return response, nil
95 }
96
97 type httpErrors []commonAPI.RequestError
98
99 func (h httpErrors) Error() string {
100 return fmt.Sprintf("%+#v", h)
101 }
102
103 func (c *Client) Get(url string, scopes []string, subject uuid.ID) (api.Response, error) {
104 return c.do("GET", url, nil, scopes, subject)
105 }
106
107 func (c *Client) Post(url string, request interface{}, scopes []string, subject uuid.ID) (api.Response, error) {
108 return c.do("POST", url, request, scopes, subject)
109 }
110
111 func (c *Client) Patch(url string, request interface{}, scopes []string, subject uuid.ID) (api.Response, error) {
112 return c.do("PATCH", url, request, scopes, subject)
113 }