Add Slack support

vendor/github.com/nlopes/slack/pins.go

@@ -0,0 +1,79 @@
+package slack
+
+import (
+	"errors"
+	"net/url"
+)
+
+type listPinsResponseFull struct {
+	Items  []Item
+	Paging `json:"paging"`
+	SlackResponse
+}
+
+// AddPin pins an item in a channel
+func (api *Client) AddPin(channel string, item ItemRef) error {
+	values := url.Values{
+		"channel": {channel},
+		"token":   {api.config.token},
+	}
+	if item.Timestamp != "" {
+		values.Set("timestamp", string(item.Timestamp))
+	}
+	if item.File != "" {
+		values.Set("file", string(item.File))
+	}
+	if item.Comment != "" {
+		values.Set("file_comment", string(item.Comment))
+	}
+	response := &SlackResponse{}
+	if err := post("pins.add", values, response, api.debug); err != nil {
+		return err
+	}
+	if !response.Ok {
+		return errors.New(response.Error)
+	}
+	return nil
+}
+
+// RemovePin un-pins an item from a channel
+func (api *Client) RemovePin(channel string, item ItemRef) error {
+	values := url.Values{
+		"channel": {channel},
+		"token":   {api.config.token},
+	}
+	if item.Timestamp != "" {
+		values.Set("timestamp", string(item.Timestamp))
+	}
+	if item.File != "" {
+		values.Set("file", string(item.File))
+	}
+	if item.Comment != "" {
+		values.Set("file_comment", string(item.Comment))
+	}
+	response := &SlackResponse{}
+	if err := post("pins.remove", values, response, api.debug); err != nil {
+		return err
+	}
+	if !response.Ok {
+		return errors.New(response.Error)
+	}
+	return nil
+}
+
+// ListPins returns information about the items a user reacted to.
+func (api *Client) ListPins(channel string) ([]Item, *Paging, error) {
+	values := url.Values{
+		"channel": {channel},
+		"token":   {api.config.token},
+	}
+	response := &listPinsResponseFull{}
+	err := post("pins.list", values, response, api.debug)
+	if err != nil {
+		return nil, nil, err
+	}
+	if !response.Ok {
+		return nil, nil, errors.New(response.Error)
+	}
+	return response.Items, &response.Paging, nil
+}