fixup! feat: Initial tracing implementation

Increase default transport buffer size when tracing is enabled

client.go

@@ -240,17 +240,26 @@ func NewClient(options ClientOptions) (*Client, error) {
 }
 
 func (client *Client) setupTransport() {
-	transport := client.options.Transport
+	opts := client.options
+	transport := opts.Transport
 
 	if transport == nil {
-		if client.options.Dsn == "" {
+		if opts.Dsn == "" {
 			transport = new(noopTransport)
 		} else {
-			transport = NewHTTPTransport()
+			httpTransport := NewHTTPTransport()
+			// When tracing is enabled, use larger buffer to
+			// accommodate more concurrent events.
+			// TODO(tracing): consider using separate buffers per
+			// event type.
+			if opts.TracesSampleRate != 0 || opts.TracesSampler != nil {
+				httpTransport.BufferSize = 1000
+			}
+			transport = httpTransport
 		}
 	}
 
-	transport.Configure(client.options)
+	transport.Configure(opts)
 	client.Transport = transport
 }