add initial Feed API

examples/feeds/get_feeds.go

@@ -0,0 +1,40 @@
+package main
+
+// Run with:
+//   go run get_feeds.go -key "MY AIO KEY"
+
+import (
+	// provides adafruitio
+
+	"encoding/json"
+	"flag"
+	"fmt"
+	"net/url"
+
+	"github.com/adafruit/io-client-go"
+)
+
+func main() {
+	var useURL string
+	var key string
+
+	flag.StringVar(&useURL, "url", "http://localhost:3002", "Adafruit IO URL")
+	flag.StringVar(&key, "key", "", "your Adafruit IO key")
+
+	flag.Parse()
+
+	client := adafruitio.NewClient(key)
+	client.BaseURL, _ = url.Parse(useURL)
+
+	// Get the list of all available feeds
+	feeds, _, err := client.Feed.All()
+	if err != nil {
+		fmt.Println("UNEXPECTED ERROR!", err)
+		panic(err)
+	}
+
+	for _, feed := range feeds {
+		sfeed, _ := json.Marshal(feed)
+		fmt.Println(string(sfeed))
+	}
+}

feed_service.go

@@ -1,8 +1,49 @@
 package adafruitio
 
+import (
+	"encoding/json"
+	"path"
+)
+
 type FeedService struct {
 	client *Client
 
 	// the name or ID of the feed
 	Name string
 }
+
+type Feed struct {
+	ID          json.Number `json:"id,omitempty"`
+	Name        string      `json:"name,omitempty"`
+	Key         string      `json:"key,omitempty"`
+	Description string      `json:"description,omitempty"`
+	UnitType    string      `json:"unit_type,omitempty"`
+	UnitSymbol  string      `json:"unit_symbol,omitempty"`
+	History     bool        `json:"history,omitempty"`
+	Visibility  string      `json:"visibility,omitempty"`
+	License     string      `json:"license,omitempty"`
+	Enabled     bool        `json:"enabled,omitempty"`
+	LastValue   string      `json:"last_value,omitempty"`
+	Status      string      `json:"status,omitempty"`
+	GroupID     json.Number `json:"group_id,omitempty"`
+	CreatedAt   string      `json:"created_at,omitempty"`
+	UpdatedAt   string      `json:"updated_at,omitempty"`
+}
+
+func (s *FeedService) All() ([]Feed, *Response, error) {
+	path := path.Join("api", "v1", "feeds")
+
+	req, rerr := s.client.NewRequest("GET", path, nil)
+	if rerr != nil {
+		return nil, nil, rerr
+	}
+
+	// request populates Feed slice
+	feeds := make([]Feed, 0)
+	resp, err := s.client.Do(req, &feeds)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	return feeds, resp, nil
+}