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Implement MCP Server #5489

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14 changes: 9 additions & 5 deletions crates/client-api/src/routes/database.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -95,7 +95,7 @@ pub struct CallParams {
pub const NO_SUCH_DATABASE: (StatusCode, &str) = (StatusCode::NOT_FOUND, "No such database.");
const MISDIRECTED: (StatusCode, &str) = (StatusCode::NOT_FOUND, "Database is not scheduled on this host");

fn map_reducer_error(e: ReducerCallError, reducer: &str) -> (StatusCode, String) {
pub(crate) fn map_reducer_error(e: ReducerCallError, reducer: &str) -> (StatusCode, String) {
let status_code = match e {
ReducerCallError::Args(_) => {
log::debug!("Attempt to call reducer {reducer} with invalid arguments");
Expand Down Expand Up @@ -438,7 +438,7 @@ fn reducer_outcome_response(
}
}

fn client_connected_error_to_response(err: ClientConnectedError) -> ErrorResponse {
pub(crate) fn client_connected_error_to_response(err: ClientConnectedError) -> ErrorResponse {
match err {
// If `call_identity_connected` returns `Err(Rejected)`, then the `client_connected` reducer errored,
// meaning the connection was refused. Return 403 forbidden.
Expand Down Expand Up @@ -466,11 +466,11 @@ fn client_connected_error_to_response(err: ClientConnectedError) -> ErrorRespons
///
/// Note that `call_identity_disconnected` swallows errors from the `client_disconnected` reducer.
/// Slap a 500 on it and pray.
fn client_disconnected_error_to_response(err: ReducerCallError) -> ErrorResponse {
pub(crate) fn client_disconnected_error_to_response(err: ReducerCallError) -> ErrorResponse {
(StatusCode::INTERNAL_SERVER_ERROR, format!("{:#}", anyhow::anyhow!(err))).into()
}

async fn find_leader_and_database<S: ControlStateDelegate + NodeDelegate>(
pub(crate) async fn find_leader_and_database<S: ControlStateDelegate + NodeDelegate>(
worker_ctx: &S,
name_or_identity: NameOrIdentity,
) -> axum::response::Result<(Host, Database)> {
Expand All @@ -487,7 +487,7 @@ async fn find_leader_and_database<S: ControlStateDelegate + NodeDelegate>(
Ok((leader, database))
}

async fn find_module_and_database<S: ControlStateDelegate + NodeDelegate>(
pub(crate) async fn find_module_and_database<S: ControlStateDelegate + NodeDelegate>(
worker_ctx: &S,
name_or_identity: NameOrIdentity,
) -> axum::response::Result<(ModuleHost, Database)> {
Expand Down Expand Up @@ -1549,6 +1549,8 @@ pub struct DatabaseRoutes<S> {
pub logs_get: MethodRouter<S>,
/// POST: /database/:name_or_identity/sql
pub sql_post: MethodRouter<S>,
/// POST: /database/:name_or_identity/mcp
pub mcp_post: MethodRouter<S>,
/// POST: /database/:name_or_identity/pre-publish
pub pre_publish: MethodRouter<S>,
/// PUT: /database/:name_or_identity/reset
Expand Down Expand Up @@ -1587,6 +1589,7 @@ where
schema_get: get(schema::<S>),
logs_get: get(logs::<S>),
sql_post: post(sql::<S>),
mcp_post: post(crate::routes::mcp::mcp::<S>),
pre_publish: post(pre_publish::<S>),
db_reset: put(reset::<S>),
timestamp_get: get(get_timestamp::<S>),
Expand Down Expand Up @@ -1617,6 +1620,7 @@ where
.route("/schema", self.schema_get)
.route("/logs", self.logs_get)
.route("/sql", self.sql_post)
.route("/mcp", self.mcp_post)
.route("/unstable/timestamp", self.timestamp_get)
.route("/pre_publish", self.pre_publish)
.route("/reset", self.db_reset)
Expand Down
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