zod validator

packages/server/src/middleware/zod-validator.ts

@@ -0,0 +1,33 @@
+import { AnyZodObject } from "zod"
+import { Ctx } from "@budibase/types"
+
+function validate(schema: AnyZodObject, property: "body" | "params") {
+  // Return a Koa middleware function
+  return (ctx: Ctx, next: any) => {
+    if (!schema) {
+      return next()
+    }
+    let params = null
+    if (ctx[property] != null) {
+      params = ctx[property]
+    } else if (property === "body" && ctx.request[property] != null) {
+      params = ctx.request[property]
+    } else if (ctx.request.get(property) != null) {
+      params = ctx.request.get(property)
+    }
+
+    const { error } = schema.safeParse(params)
+    if (error) {
+      ctx.throw(400, `Invalid ${property} - ${error.message}`)
+    }
+    return next()
+  }
+}
+
+export function validateBody(schema: AnyZodObject) {
+  return validate(schema, "body")
+}
+
+// export function validateParams(schema: Joi.Schema) {
+//   return validate(schema, "params")
+// }