Struct Producer 

pub struct Producer { /* private fields */ }

Represents a message producer responsible for sending messages to partitioned or non-partitioned topics distributed across message brokers.

The Producer struct is designed to handle the creation and management of a producer instance that sends messages to either partitioned or non-partitioned topics. It manages the producer’s state and ensures that messages are sent according to the configured settings.

Implementations

impl Producer

pub async fn create(&mut self) -> Result<()>

Initializes the producer and registers it with the message brokers.

This asynchronous method sets up the producer by establishing connections with the message brokers and configuring it for sending messages to the specified topic. It is responsible for creating the necessary resources for producers handling partitioned topics.

pub async fn send( &self, data: Vec<u8>, attributes: Option<HashMap<String, String>>, ) -> Result<u64>

Sends a message to the topic associated with this producer.

It handles the serialization of the payload and any user-defined attributes. This method assumes that the producer has been successfully initialized and is ready to send messages.

Parameters

• data: The message payload to be sent. This should be a Vec<u8> representing the content of the message.
• attributes: Optional user-defined properties or attributes associated with the message. This is a HashMap<String, String> where keys and values represent the attribute names and values, respectively.

Returns

• Ok(u64): The sequence ID of the sent message if the operation is successful. This ID can be used for tracking and acknowledging the message.
• Err(e): An error if message sending fails. Possible reasons for failure include network issues, serialization errors, or broker-related problems.

Trait Implementations

impl Debug for Producer

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.