examples

prost crate - example

Runnable project

Example code to serialize and deserialize a simple protobuf message:

use prost::Message;

// Define a simple protobuf message
#[derive(Clone, PartialEq, Message)]
pub struct MyMessage {
    #[prost(int32, tag="1")]
    pub my_field: i32,
}

// Serialize the message to bytes
let message = MyMessage { my_field: 42 };
let mut bytes = Vec::new();
message.encode(&mut bytes).unwrap();

// Deserialize the message from bytes
let decoded = MyMessage::decode(bytes.as_slice()).unwrap();

// Verify the decoded message is the same as the original
assert_eq!(message, decoded);

In this example code, we define a simple protobuf message MyMessage with a single field my_field. We use Prost's #[derive(Message)] macro to generate the serialization and deserialization code for this message.

We then create an instance of MyMessage, serialize it to bytes using the encode() method, and deserialize it back to a MyMessage instance using the decode() method.

Finally, we verify that the serialized and deserialized messages are equal using the assert_eq() macro.