How to use handlebars in es4x?

[guydeschepper]

I'm trying to use handlebars in es4x, but it's throwing the following error:

Failed in deploying verticle caused by TypeError: Access to host class io.vertx.ext.web.handler.APIKeyHandler is not allowed or does not exist.

This can be reproduced with the following code:

/// <reference types="@vertx/core" />
// @ts-check
import { Router, TemplateHandler } from '@vertx/web';
import * as hb from '@vertx/web-templ-handlebars';

const engine = hb.HandlebarsTemplateEngine.create(vertx);
console.log('started');

The same code (equivalent) works fine in Vert.x java

[pmlopes]

That's odd, it sounds like the jars in your classpath are corrupted because it misses that class. Can you try to remove you node_modules and try again? if it still fails, can you show the listing of node_modules/.libs ? I'd like to see if for some reason the wrong version of modules is getting picked by npm.

[guydeschepper]

You were right, some jars were missing from the .lib folder.

this is the listing before removing node_modules:

$  ls -lFa node_modules/.lib/
total 47096
drwxrwxr-x 2 guy guy     4096 Nov 23 14:10 ./
drwxrwxr-x 7 guy guy     4096 Nov 23 16:54 ../
-rw-rw-r-- 1 guy guy  1064498 Nov 23 14:10 chromeinspector-22.3.0.jar
-rw-rw-r-- 1 guy guy    90271 Nov 23 14:10 es4x-0.19.1.jar
-rw-rw-r-- 1 guy guy 13963762 Nov 23 14:10 icu4j-71.1.jar
-rw-rw-r-- 1 guy guy   374895 Nov 23 14:10 jackson-core-2.13.4.jar
-rw-rw-r-- 1 guy guy 23528151 Nov 23 14:10 js-22.3.0.jar
-rw-rw-r-- 1 guy guy   304664 Nov 23 14:10 netty-buffer-4.1.82.Final.jar
-rw-rw-r-- 1 guy guy   339155 Nov 23 14:10 netty-codec-4.1.82.Final.jar
-rw-rw-r-- 1 guy guy    65442 Nov 23 14:10 netty-codec-dns-4.1.82.Final.jar
-rw-rw-r-- 1 guy guy   645606 Nov 23 14:10 netty-codec-http-4.1.82.Final.jar
-rw-rw-r-- 1 guy guy   474785 Nov 23 14:10 netty-codec-http2-4.1.82.Final.jar
-rw-rw-r-- 1 guy guy   119071 Nov 23 14:10 netty-codec-socks-4.1.82.Final.jar
-rw-rw-r-- 1 guy guy   653880 Nov 23 14:10 netty-common-4.1.82.Final.jar
-rw-rw-r-- 1 guy guy   538569 Nov 23 14:10 netty-handler-4.1.82.Final.jar
-rw-rw-r-- 1 guy guy    23958 Nov 23 14:10 netty-handler-proxy-4.1.82.Final.jar
-rw-rw-r-- 1 guy guy    37776 Nov 23 14:10 netty-resolver-4.1.82.Final.jar
-rw-rw-r-- 1 guy guy   156868 Nov 23 14:10 netty-resolver-dns-4.1.82.Final.jar
-rw-rw-r-- 1 guy guy   485752 Nov 23 14:10 netty-transport-4.1.82.Final.jar
-rw-rw-r-- 1 guy guy    43684 Nov 23 14:10 netty-transport-native-unix-common-4.1.82.Final.jar
-rw-rw-r-- 1 guy guy   643438 Nov 23 14:10 profiler-22.3.0.jar
-rw-rw-r-- 1 guy guy  3118855 Nov 23 14:10 regex-22.3.0.jar
-rw-rw-r-- 1 guy guy  1500743 Nov 23 14:10 vertx-core-4.3.4.jar

and this is the listing after a clean npm install:

$  ls -lF node_modules/.lib/
total 48696
-rw-rw-r-- 1 guy guy  1064498 Nov 23 19:16 chromeinspector-22.3.0.jar
-rw-rw-r-- 1 guy guy    90271 Nov 23 19:16 es4x-0.19.1.jar
-rw-rw-r-- 1 guy guy   950443 Nov 23 19:16 handlebars-4.3.0.jar
-rw-rw-r-- 1 guy guy 13963762 Nov 23 19:16 icu4j-71.1.jar
-rw-rw-r-- 1 guy guy   374895 Nov 23 19:16 jackson-core-2.13.4.jar
-rw-rw-r-- 1 guy guy 23528151 Nov 23 19:16 js-22.3.0.jar
-rw-rw-r-- 1 guy guy   304664 Nov 23 19:16 netty-buffer-4.1.82.Final.jar
-rw-rw-r-- 1 guy guy   339155 Nov 23 19:16 netty-codec-4.1.82.Final.jar
-rw-rw-r-- 1 guy guy    65442 Nov 23 19:16 netty-codec-dns-4.1.82.Final.jar
-rw-rw-r-- 1 guy guy   645606 Nov 23 19:16 netty-codec-http-4.1.82.Final.jar
-rw-rw-r-- 1 guy guy   474785 Nov 23 19:16 netty-codec-http2-4.1.82.Final.jar
-rw-rw-r-- 1 guy guy   119071 Nov 23 19:16 netty-codec-socks-4.1.82.Final.jar
-rw-rw-r-- 1 guy guy   653880 Nov 23 19:16 netty-common-4.1.82.Final.jar
-rw-rw-r-- 1 guy guy   538569 Nov 23 19:16 netty-handler-4.1.82.Final.jar
-rw-rw-r-- 1 guy guy    23958 Nov 23 19:16 netty-handler-proxy-4.1.82.Final.jar
-rw-rw-r-- 1 guy guy    37776 Nov 23 19:16 netty-resolver-4.1.82.Final.jar
-rw-rw-r-- 1 guy guy   156868 Nov 23 19:16 netty-resolver-dns-4.1.82.Final.jar
-rw-rw-r-- 1 guy guy   485752 Nov 23 19:16 netty-transport-4.1.82.Final.jar
-rw-rw-r-- 1 guy guy    43684 Nov 23 19:16 netty-transport-native-unix-common-4.1.82.Final.jar
-rw-rw-r-- 1 guy guy   643438 Nov 23 19:16 profiler-22.3.0.jar
-rw-rw-r-- 1 guy guy  3118855 Nov 23 19:16 regex-22.3.0.jar
-rw-rw-r-- 1 guy guy    41071 Nov 23 19:16 slf4j-api-1.7.21.jar
-rw-rw-r-- 1 guy guy   134156 Nov 23 19:16 vertx-auth-common-4.3.4.jar
-rw-rw-r-- 1 guy guy    11089 Nov 23 19:16 vertx-bridge-common-4.3.4.jar
-rw-rw-r-- 1 guy guy  1500743 Nov 23 19:16 vertx-core-4.3.4.jar
-rw-rw-r-- 1 guy guy    99431 Nov 23 19:16 vertx-unit-4.3.4.jar
-rw-rw-r-- 1 guy guy   359965 Nov 23 19:16 vertx-web-4.3.4.jar
-rw-rw-r-- 1 guy guy    23953 Nov 23 19:16 vertx-web-common-4.3.4.jar
-rw-rw-r-- 1 guy guy    11447 Nov 23 19:16 vertx-web-templ-handlebars-4.3.4.jar

So it seems that npm install <library> doesn't add the necessary jars to the .lib folder

(edited to fix the formatting of the listings)