Implement a startup script which runs once on microservice start.

examples/py_simple.py

@@ -3,6 +3,15 @@ from slingshot_microservice import Microservice
 from typing import Generator
 from sqlalchemy.engine.base import Connection
 
+
+def startup(
+	read_file: ReadFileFn,
+	write_file: WriteFileFn,
+	_connection: Connection,
+) -> Generator[tuple[int, bool | int | str], None, None]:
+	if False:
+		yield (0, True)
+
 def process(
 	request: int,
 	read_file: ReadFileFn,
@@ -16,5 +25,5 @@ def process(
 	yield (request, True)
 
 
-microservice = Microservice("simple-py-microservice", "sys-map.slingshot.cv", process)
+microservice = Microservice("simple-py-microservice", "sys-map.slingshot.cv", startup, process)
 microservice.start()

examples/simple.rs

@@ -18,8 +18,21 @@ fn process(
 	Ok(vec![(request, "case_a".to_string())])
 }
 
+fn startup(
+	_read_file: &ReadFileFn,
+	_write_file: &WriteFileFn,
+	_connection: &mut PgConnection,
+) -> Result<Vec<(u64, String)>, AnyError> {
+	Ok(Vec::new())
+}
+
 fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
-	let microservice = Microservice::new("simple-microservice", "sys-map.slingshot.cv", process);
+	let microservice = Microservice::new(
+		"simple-microservice",
+		"sys-map.slingshot.cv",
+		startup,
+		process,
+	);
 
 	microservice.start()?;
 	Ok(())