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-rw-r--r--rust/src/server.rs81
1 files changed, 81 insertions, 0 deletions
diff --git a/rust/src/server.rs b/rust/src/server.rs
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+//! API endpoint handlers
+
+use crate::auth::*;
+use crate::errors::*;
+use chrono;
+use diesel;
+use diesel::pg::PgConnection;
+use diesel::r2d2::ConnectionManager;
+use dotenv::dotenv;
+use rand::Rng;
+use std::process::Command;
+use std::{env, thread, time};
+
+#[cfg(feature = "postgres")]
+embed_migrations!("../migrations/");
+
+pub type ConnectionPool = diesel::r2d2::Pool<ConnectionManager<diesel::pg::PgConnection>>;
+
+pub type DbConn =
+ diesel::r2d2::PooledConnection<diesel::r2d2::ConnectionManager<diesel::PgConnection>>;
+
+/// Instantiate a new API server with a pooled database connection
+pub fn database_worker_pool() -> Result<ConnectionPool> {
+ dotenv().ok();
+ let database_url = env::var("DATABASE_URL").expect("DATABASE_URL must be set");
+ let manager = ConnectionManager::<PgConnection>::new(database_url);
+ let pool = diesel::r2d2::Pool::builder()
+ .build(manager)
+ .expect("Failed to create database pool.");
+ Ok(pool)
+}
+
+#[derive(Clone)]
+pub struct Server {
+ pub db_pool: ConnectionPool,
+ pub auth_confectionary: AuthConfectionary,
+}
+
+/// Instantiate a new API server with a pooled database connection
+pub fn create_server() -> Result<Server> {
+ dotenv().ok();
+ let database_url = env::var("DATABASE_URL").expect("DATABASE_URL must be set");
+ let manager = ConnectionManager::<PgConnection>::new(database_url);
+ let pool = diesel::r2d2::Pool::builder()
+ .build(manager)
+ .expect("Failed to create database pool.");
+ let confectionary = env_confectionary()?;
+ Ok(Server {
+ db_pool: pool,
+ auth_confectionary: confectionary,
+ })
+}
+
+/// Generates a server for testing. Calls an external bash script to generate a random postgres
+/// database, which will be unique to this process but common across threads and connections. The
+/// database will automagically get cleaned up (deleted) after 60 seconds.
+/// Currently, start times are staggered by up to 200ms to prevent internal postgres concurrency
+/// errors; if this fails run the tests serially (one at a time), which is slower but more robust.
+/// CI should run tests serially.
+pub fn create_test_server() -> Result<Server> {
+ dotenv().ok();
+ // sleep a bit so we don't have thundering herd collisions, resuliting in
+ // "pg_extension_name_index" or "pg_proc_proname_args_nsp_index" or "pg_type_typname_nsp_index"
+ // duplicate key violations.
+ thread::sleep(time::Duration::from_millis(
+ rand::thread_rng().gen_range(0, 200),
+ ));
+ let pg_tmp = Command::new("./tests/pg_tmp.sh")
+ .output()
+ .expect("run ./tests/pg_tmp.sh to get temporary postgres DB");
+ let database_url = String::from_utf8_lossy(&pg_tmp.stdout).to_string();
+ env::set_var("DATABASE_URL", database_url);
+
+ let mut server = create_server()?;
+ server.auth_confectionary = AuthConfectionary::new_dummy();
+ let conn = server.db_pool.get().expect("db_pool error");
+
+ // run migrations; this is a fresh/bare database
+ diesel_migrations::run_pending_migrations(&conn).unwrap();
+ Ok(server)
+}