Integrating Solace Node.js API with Webpack

I am currently working on an Angular2 TypeScript web application that has been built using webpack. My goal is to integrate solclientjs into the project, but I keep encountering the error displayed below:

solclientjs-exports.js:34 Uncaught Error: Cannot find module "."
at webpackMissingModule (solclientjs-exports.js:34)
at load (solclientjs-exports.js:34)
at loadProduction (solclientjs-exports.js:44)
at new loader (solclientjs-exports.js:47)
at Object. (solclientjs-exports.js:72)
at webpack_require (bootstrap 79a17da…:52)
at Object. (home.component.ts:8)
at webpack_require (bootstrap 79a17da…:52)
at Object. (app.ts:17)
at webpack_require (bootstrap 79a17da…:52)

Any advice on how to resolve this issue would be greatly appreciated.

typescriptwebpack-2solace

Answer №1

Utilizing the exports-loader tool will allow you to bundle the library using Webpack.

Below is a snippet of a webpack.config.js file after implementing the exports-loader:

const path = require('path');

const solclientjs = path.resolve(__dirname, 'path/to/solclientjs-10.0.0/lib/solclient.js');

module.exports = {
  resolve: {
    alias: {
      solclientjs$: solclientjs
    }
  },
  module: {
    rules: [
      {
        test: require.resolve(solclientjs),
        use: 'exports-loader?window.solace'
      }
    ]
  }
}

A few key points to consider:

  1. It is essential to use the browser version instead of the node version for Webpack. Attempting to package the Node version of the library for browser use is not supported and will not function properly.

    • The Node version of the library relies on a Node-specific WebSocket library that is not compatible with browsers.
    • The Node version lacks the full array of HTTP transports available in the browser version, which includes support for fallback to HTTP Comet transports.
    • The browser version includes specific platform code for optimal performance on various browsers, a feature absent in the Node version.

  2. For seamless compatibility, the browser version of the library is distributed to be directly included using a <script> tag in a file. It is highly recommended to load the library this way for browser use. Examples can be found here.

Answer №2

An issue has been identified on line 44 within the file solclientjs-exports.js

var loadProduction = function() {
    return load("production", "./solclientjs.js");
};

The function load() operates as follows:

var load = function(type, file) {
    if (loaded[type]) return loaded[type];

    loaded[type] = require(file);
    return loaded[type];
};

It appears that the file ./solclientjs.js cannot be located. Please ensure that solclientjs.js exists and is placed in the correct directory.

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