CODEWITHSUNDEEP
node.jswebpackbackend
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Reputation: 73

Webpack for backend: the request of a dependency is an expression

Trying to follow this tutorial for using webpack for the backend I have successfully build the bundle, unfortunately on completion it warnsCritical dependency: the request of a dependency is an expression, I used webpack-node-externals module to externalize the whole node_modules directory but I need to dynamically require some modules from node_modules but webpack replaces my require with an error. Apparently there's a way to tell webpack to leave alone those requires that cannot resolve but it warns webpack: Using compiler.parser is deprecated, apparently that way of creating an inline plugin has been deprecated but I'm not able to translate that to the new syntax which should be:

compiler.plugin("compilation", function(compilation, params) {
  params.normalModuleFactory.plugin("parser", function(parser, parserOptions) {
    parser.plugin(/* ... */);
  });
});

According to this. Any help is appreciated.

Upvotes: 1

Views: 298

Answers (1)

EHR
EHR

Reputation: 73

function IgnoreUnresolvedPlugin() { }

IgnoreUnresolvedPlugin.prototype.apply = function (compiler) {
  compiler.plugin("compilation", function (compilation, data) {
    data.normalModuleFactory.plugin("parser", function (parser) {
      parser.plugin('call require', function (params) {
        if (params.arguments.length !== 1) { return; }

        const param = this.evaluateExpression(params.arguments[0]);

        if (!param.isString() && !param.isConditional()) {
          return true;
        }
      });
    });
  });
};

Upvotes: 1

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