1 files changed, 39 insertions, 0 deletions

diff --git a/server/middlewares/error.ts b/server/middlewares/error.ts
new file mode 100644
index 000000000..e3eb1c8f5
--- /dev/null
+++ b/server/middlewares/error.ts
@@ -0,0 +1,39 @@
+import * as express from 'express'
+import { ProblemDocument, ProblemDocumentExtension } from 'http-problem-details'
+import { HttpStatusCode } from '@shared/core-utils'
+
+function apiFailMiddleware (req: express.Request, res: express.Response, next: express.NextFunction) {
+  res.fail = options => {
+    const { status = HttpStatusCode.BAD_REQUEST_400, message, title, type, data, instance } = options
+
+    const extension = new ProblemDocumentExtension({
+      ...data,
+
+      docs: res.locals.docUrl,
+      code: type,
+
+      // For <= 3.2 compatibility
+      error: message
+    })
+
+    res.status(status)
+    res.setHeader('Content-Type', 'application/problem+json')
+    res.json(new ProblemDocument({
+      status,
+      title,
+      instance,
+
+      detail: message,
+
+      type: type
+        ? `https://docs.joinpeertube.org/api-rest-reference.html#section/Errors/${type}`
+        : undefined
+    }, extension))
+  }
+
+  if (next) next()
+}
+
+export {
+  apiFailMiddleware
+}