Merge pull request #29485 from overleaf/mfb-from-joi-to-zod-clsi-cache-revert

Reapply "migrate from joi to zod CLSI-CACHE service"

GitOrigin-RevId: 638b9e21b8cf18c1733f8a01375dab4099fe5d73

libraries/validation-tools/handleValidationError.js

@@ -0,0 +1,17 @@
+const { isZodErrorLike, fromError } = require('zod-validation-error')
+/**
+ * @typedef {import('express').ErrorRequestHandler} ErrorRequestHandler
+ */
+
+const handleValidationError = [
+  /** @type {ErrorRequestHandler} */
+  (err, req, res, next) => {
+    if (!isZodErrorLike(err)) {
+      return next(err)
+    }
+
+    res.status(400).json({ ...fromError(err), statusCode: 400 })
+  },
+]
+
+module.exports = { handleValidationError }

libraries/validation-tools/index.js

@@ -2,10 +2,12 @@ const { ParamsError } = require('./Errors')
 const { z } = require('zod')
 const { zz } = require('./zodHelpers')
 const { validateReq } = require('./validateReq')
+const { handleValidationError } = require('./handleValidationError')
 
 module.exports = {
   z,
   zz,
   validateReq,
+  handleValidationError,
   ParamsError,
 }

libraries/validation-tools/package.json

@@ -22,7 +22,8 @@
   "dependencies": {
     "@overleaf/o-error": "*",
     "mongodb": "^6.12.0",
-    "zod": "^4.1.8"
+    "zod": "^4.1.8",
+    "zod-validation-error": "^4.0.1"
   },
   "devDependencies": {
     "typescript": "^5.0.4",