added getChannel api service and use that over getChannels where appropriate on client

model/channel_data.go

@@ -0,0 +1,43 @@
+// Copyright (c) 2015 Spinpunch, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+package model
+
+import (
+	"encoding/json"
+	"io"
+)
+
+type ChannelData struct {
+	Channel *Channel       `json:"channel"`
+	Member  *ChannelMember `json:"member"`
+}
+
+func (o *ChannelData) Etag() string {
+	var mt int64 = 0
+	if o.Member != nil {
+		mt = o.Member.LastUpdateAt
+	}
+
+	return Etag(o.Channel.Id, o.Channel.UpdateAt, o.Channel.LastPostAt, mt)
+}
+
+func (o *ChannelData) ToJson() string {
+	b, err := json.Marshal(o)
+	if err != nil {
+		return ""
+	} else {
+		return string(b)
+	}
+}
+
+func ChannelDataFromJson(data io.Reader) *ChannelData {
+	decoder := json.NewDecoder(data)
+	var o ChannelData
+	err := decoder.Decode(&o)
+	if err == nil {
+		return &o
+	} else {
+		return nil
+	}
+}

model/client.go

@@ -390,6 +390,15 @@ func (c *Client) GetChannels(etag string) (*Result, *AppError) {
 	}
 }
 
+func (c *Client) GetChannel(id, etag string) (*Result, *AppError) {
+	if r, err := c.DoGet("/channels/"+id+"/", "", etag); err != nil {
+		return nil, err
+	} else {
+		return &Result{r.Header.Get(HEADER_REQUEST_ID),
+			r.Header.Get(HEADER_ETAG_SERVER), ChannelDataFromJson(r.Body)}, nil
+	}
+}
+
 func (c *Client) GetMoreChannels(etag string) (*Result, *AppError) {
 	if r, err := c.DoGet("/channels/more", "", etag); err != nil {
 		return nil, err