api/message_reaction.go

@@ -213,6 +213,6 @@ func (c *Client) DeleteReactions(
 func (c *Client) DeleteAllReactions(channelID discord.ChannelID, messageID discord.MessageID) error {
 	return c.FastRequest(
 		"DELETE",
-		EndpointChannels+channelID.String()+"/messages/"+messageID.String()+"/reactions",
+		EndpointChannels+channelID.String()+"/messages/"+messageID.String()+"/reactions/",
 	)
 }

utils/httputil/options.go

@@ -78,14 +78,25 @@ func WithBody(body io.ReadCloser) RequestOption {
 // WithJSONBody inserts a JSON body into the request. This ignores JSON errors.
 func WithJSONBody(v interface{}) RequestOption {
 	if v == nil {
-		return func(httpdriver.Request) error { return nil }
+		return func(httpdriver.Request) error {
+			return nil
+		}
 	}
 
 	var rp, wp = io.Pipe()
+	var err error
 
-	go func() { wp.CloseWithError(json.EncodeStream(wp, v)) }()
+	go func() {
+		err = json.EncodeStream(wp, v)
+		wp.Close()
+	}()
 
 	return func(r httpdriver.Request) error {
+		// TODO: maybe do something to this?
+		if err != nil {
+			return err
+		}
+
 		r.AddHeader(http.Header{
 			"Content-Type": {"application/json"},
 		})