ducky/subscriptions: api/context

Add an API and subscriptionsd . Create a barebones implementation of the API, including only methods to create a Subscription and retrieve the Subscription associated with a user. Also create a subscriptiond service that will bootstrap the service and stores, and get everything stood up.

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/api/context_helpers.go	Mon Jun 22 18:50:02 2015 -0400
     1.3 @@ -0,0 +1,49 @@
     1.4 +package api
     1.5 +
     1.6 +import (
     1.7 +	"errors"
     1.8 +
     1.9 +	"code.secondbit.org/ducky/subscriptions.hg"
    1.10 +
    1.11 +	"golang.org/x/net/context"
    1.12 +)
    1.13 +
    1.14 +const (
    1.15 +	subscriptionStoreKey = "SubscriptionStore"
    1.16 +	stripeKey            = "Stripe"
    1.17 +)
    1.18 +
    1.19 +var (
    1.20 +	ErrSubscriptionStoreNotSet = errors.New("SubscriptionStore not set")
    1.21 +	ErrStripeClientNotSet      = errors.New("Stripe not set")
    1.22 +)
    1.23 +
    1.24 +func getSubscriptionStore(c context.Context) (subscriptions.SubscriptionStore, error) {
    1.25 +	store := c.Value(subscriptionStoreKey)
    1.26 +	if store == nil {
    1.27 +		return nil, ErrSubscriptionStoreNotSet
    1.28 +	}
    1.29 +	if s, ok := store.(subscriptions.SubscriptionStore); ok {
    1.30 +		return s, nil
    1.31 +	}
    1.32 +	return nil, ErrSubscriptionStoreNotSet
    1.33 +}
    1.34 +
    1.35 +func WithSubscriptionStore(store subscriptions.SubscriptionStore, c context.Context) context.Context {
    1.36 +	return context.WithValue(c, subscriptionStoreKey, store)
    1.37 +}
    1.38 +
    1.39 +func getStripeClient(c context.Context) (subscriptions.Stripe, error) {
    1.40 +	stripe := c.Value(stripeKey)
    1.41 +	if stripe == nil {
    1.42 +		return subscriptions.Stripe{}, ErrStripeClientNotSet
    1.43 +	}
    1.44 +	if s, ok := stripe.(subscriptions.Stripe); ok {
    1.45 +		return s, nil
    1.46 +	}
    1.47 +	return subscriptions.Stripe{}, ErrStripeClientNotSet
    1.48 +}
    1.49 +
    1.50 +func WithStripeClient(stripe subscriptions.Stripe, c context.Context) context.Context {
    1.51 +	return context.WithValue(c, stripeKey, stripe)
    1.52 +}

ducky/subscriptions

ducky/subscriptions/api/context_helpers.go