Function parse_message 

pub fn parse_message(data: &Value) -> Result<Option<Message>, MessageParseError>

Parses a raw JSON value from the CLI into a typed Message.

Arguments

• data — A JSON value representing a single message from the CLI output stream.

Returns

• Ok(Some(message)) — Successfully parsed into a known message type.
• Ok(None) — The message type is unrecognized (silently skipped).
• Err(MessageParseError) — The message is malformed or missing required fields.

Supported message types

type field	Parsed into
"user"	Message::User
"assistant"	Message::Assistant
"system"	Message::System
"result"	Message::Result
"stream_event"	Message::StreamEvent

Example

use claude_code::{parse_message, Message};
use serde_json::json;

let raw = json!({
    "type": "system",
    "subtype": "initialized"
});

let parsed = parse_message(&raw).unwrap();
assert!(matches!(parsed, Some(Message::System(_))));