Use async/await in controllers

2 files changed, 17 insertions, 0 deletions

diff --git a/server/middlewares/async.ts b/server/middlewares/async.ts
new file mode 100644
index 000000000..29ebd169d
--- /dev/null
+++ b/server/middlewares/async.ts
@@ -0,0 +1,16 @@
+import { Request, Response, NextFunction } from 'express'
+
+// Syntactic sugar to avoid try/catch in express controllers
+// Thanks: https://medium.com/@Abazhenov/using-async-await-in-express-with-node-8-b8af872c0016
+function asyncMiddleware (fn: (req: Request, res: Response, next: NextFunction) => Promise<any>) {
+  return (req: Request, res: Response, next: NextFunction) => {
+    return Promise.resolve(fn(req, res, next))
+      .catch(next)
+  }
+}
+
+// ---------------------------------------------------------------------------
+
+export {
+  asyncMiddleware
+}
diff --git a/server/middlewares/index.ts b/server/middlewares/index.ts
index d71dd2452..0e2c850e1 100644
--- a/server/middlewares/index.ts
+++ b/server/middlewares/index.ts
@@ -1,5 +1,6 @@
 export * from './validators'
 export * from './admin'
+export * from './async'
 export * from './oauth'
 export * from './pagination'
 export * from './pods'