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✨ (Cargo.toml): bump version to 0.1.5 for new release

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✨ (ls_client.rs): add TLCP_VERSION constant for protocol version tracking
♻️ (ls_client.rs): remove commented-out code and unused println for cleaner codebase
♻️ (ls_client.rs): use TLCP_VERSION constant instead of hardcoded protocol string
✨ (ls_client.rs): handle 'reqok' server message for better server communication
♻️ (subscription.rs): change error type to Box<dyn Error> for more generic error handling
🐛 (subscription.rs): fix error message to be more descriptive when items or fields are missing
This commit is contained in:
Daniel López Azaña 2024-04-07 20:24:35 +02:00
parent 2883c5e050
commit 01b70468fc
3 changed files with 11 additions and 7 deletions
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2
Cargo.toml
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@ -1,6 +1,6 @@
[package]
name = "lightstreamer-client"
version = "0.1.4"
version = "0.1.5"
edition = "2021"
authors = ["Daniel López Azaña <daniloaz@gmail.com>"]
description = "A Rust client for Lightstreamer, designed to facilitate real-time communication with Lightstreamer servers."

11
src/ls_client.rs
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@ -123,6 +123,9 @@ impl LightstreamerClient {
/// A constant string representing the version of the library.
pub const LIB_VERSION: &'static str = "0.1.0";
/// A constant string representing the version of the TLCP protocol used by the library.
pub const TLCP_VERSION: &'static str = "TLCP-2.4.0";
/// Static method that can be used to share cookies between connections to the Server (performed by
/// this library) and connections to other sites that are performed by the application. With this
/// method, cookies received by the application can be added (or replaced if already present) to
@ -440,14 +443,12 @@ impl LightstreamerClient {
// Prepare the subscription request.
//
let mut params: Vec<(&str, &str)> = vec![
//("LS_session", session_id),
("LS_reqId", &ls_req_id),
("LS_op", "add"),
("LS_subId", &ls_sub_id),
("LS_mode", &ls_mode),
("LS_group", &ls_group),
("LS_schema", &ls_schema),
("LS_data_adapter", &ls_data_adapter),
("LS_ack", "false"),
];
if ls_snapshot != "" {
@ -476,6 +477,9 @@ impl LightstreamerClient {
"probe" => {
println!("Received probe message from server: '{}'", clean_text);
},
"reqok" => {
println!("Received reqok message from server: '{}'", clean_text);
},
//
// Subscription confirmation from server.
//
@ -506,12 +510,10 @@ impl LightstreamerClient {
},
};
let ls_send_sync = self.connection_options.get_send_sync().to_string();
println!("self.connection_options.get_send_sync(): {:?}", self.connection_options.get_send_sync());
let mut params: Vec<(&str, &str)> = vec![
("LS_adapter_set", &ls_adapter_set),
("LS_cid", "mgQkwtwdysogQz2BJ4Ji kOj2Bg"),
("LS_send_sync", &ls_send_sync),
("LS_protocol", "TLCP-2.4.0"),
];
if let Some(user) = &self.connection_details.get_user() {
params.push(("LS_user", user));
@ -519,6 +521,7 @@ impl LightstreamerClient {
if let Some(password) = &self.connection_details.get_password() {
params.push(("LS_password", password));
}
params.push(("LS_protocol", Self::TLCP_VERSION));
let encoded_params = serde_urlencoded::to_string(&params)?;
write_stream
.send(Message::Text(format!("create_session\r\n{}\n", encoded_params)))

5
src/subscription.rs
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@ -1,5 +1,6 @@
use crate::subscription_listener::SubscriptionListener;
use std::collections::HashMap;
use std::error::Error;
use std::fmt::{self, Debug, Formatter};
/// Enum representing the snapshot delivery preferences to be requested to Lightstreamer Server for the items in the Subscription.
@ -116,9 +117,9 @@ impl Subscription {
mode: SubscriptionMode,
items: Option<Vec<String>>,
fields: Option<Vec<String>>,
) -> Result<Subscription, String> {
) -> Result<Subscription, Box<dyn Error>> {
if items.is_none() || fields.is_none() {
return Err("Items and fields must be provided".to_string());
return Err("Items and fields must be provided".to_string().into());
}
Ok(Subscription {