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Minor updates to the Rust client quickstart #2318

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Merged
gefjon merged 2 commits into from
Mar 3, 2025
Merged

Minor updates to the Rust client quickstart #2318

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fcfdcca
Fix warnings in `quickstart-chat` sdk example
gefjon Feb 27, 2025
c09e213
Also add comments to `connect_to_db`
gefjon Feb 27, 2025
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12 changes: 10 additions & 2 deletions crates/sdk/examples/quickstart-chat/main.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,6 @@
mod module_bindings;
use module_bindings::*;

use spacetimedb_client_api_messages::websocket::Compression;
use spacetimedb_sdk::{credentials, DbContext, Error, Event, Identity, Status, Table, TableWithPrimaryKey};

// ## Define the main function
Expand Down Expand Up @@ -36,12 +35,21 @@ const DB_NAME: &str = "quickstart-chat";
/// Load credentials from a file and connect to the database.
fn connect_to_db() -> DbConnection {
DbConnection::builder()
// Register our `on_connect` callback, which will save our auth token.
.on_connect(on_connected)
// Register our `on_connect_error` callback, which will print a message, then exit the process.
.on_connect_error(on_connect_error)
// Our `on_disconnect` callback, which will print a message, then exit the process.
.on_disconnect(on_disconnected)
// If the user has previously connected, we'll have saved a token in the `on_connect` callback.
// In that case, we'll load it and pass it to `with_token`,
// so we can re-authenticate as the same `Identity`.
.with_token(creds_store().load().expect("Error loading credentials"))
// Set the database name we chose when we called `spacetime publish`.
.with_module_name(DB_NAME)
// Set the URI of the SpacetimeDB host that's running our database.
.with_uri(HOST)
// Finalize configuration and connect!
.build()
.expect("Failed to connect")
}
Expand Down Expand Up @@ -197,7 +205,7 @@ fn on_sub_applied(ctx: &SubscriptionEventContext) {

/// Or `on_error` callback:
/// print the error, then exit the process.
fn on_sub_error(ctx: &ErrorContext, err: Error) {
fn on_sub_error(_ctx: &ErrorContext, err: Error) {
eprintln!("Subscription failed: {}", err);
std::process::exit(1);
}
Expand Down
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