Flow control in gRPC can be managed using the built-in mechanisms of HTTP/2. The primary method is through setting initial connection and stream flow-control windows. By adjusting these window sizes, you can regulate how much data a sender can transmit before receiving an acknowledgment from the receiver.
In addition to this, gRPC also supports application-level flow control. This allows developers to manage the rate at which they read messages on a per-call basis. For instance, if a client reads slower than the server sends, it can use the
InputStream
API to control when to request more data.
Furthermore, gRPC provides bidirectional streaming where both sides send a sequence of messages using a read-write stream. This enables backpressure handling as each side can independently decide when to read or write.
