add dev error page

lib/middleware/errorpage.js

@@ -0,0 +1,5 @@
+export default async function(req, res, next) {
+    await next(req, res).catch(error => {
+        res.error(JSON.stringify({ error }))
+    })
+}

lib/plankton.js

@@ -14,6 +14,7 @@ import Cors from './middleware/cors.js'
 import StaticFile from './middleware/staticfile.js'
 import PathBase from './middleware/pathbase.js'
 import Session from './middleware/session.js'
+import ErrorPage from './middleware/errorpage.js'
 
 export class Plankton {
     constructor() {
@@ -147,6 +148,17 @@ export class Plankton {
         return this.use(StaticFile(wwwroot, requestPath))
     }
 
+    /**
+     * Use developer error page to show error info
+     * @returns {Plankton} Plankton app
+     * 
+     * @example
+     * app.useDevErrorPage()
+     */
+    useDevErrorPage() {
+        return this.use(ErrorPage)
+    }
+
     /**
      * Map endpoint
      * @param {string} routePath endpoint path

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@lixinyang123/plankton",
-  "version": "0.2.5",
+  "version": "0.2.6",
   "description": "Fast, Sample, Zero dependenecs Node.js mvc web framework",
   "author": "lllxy",
   "type": "module",