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Today I came across a dilemma. I wanted to somehow stub or fake Azure's Service Bus. There's no official way to do it. So, I came up with an idea to overwrite its implementation with my own, by mapping @azure/service-bus to my own class in tsconfig.json, no luck, because the framework that I use is using Webpack under the hood, so I would need to create a plugin, rule, whatever, to make it work, but I didn't want to write a specific configuration just for Webpack. Instead, I had another idea: to import @azure/service-bus dynamically, using ES dynamic `import`, in place of static imports. But, since I'm using Node.JS, I have to set the package.json type to module, so I can use top-level `await`, with dynamic `import` to import, with the help of a ternary, the correct implementation on the fly. I had a extremely bad experience trying to convert a CommonJS project to use ES Modules before. So I did not go through with the plan. Finally, after spending some time trying to not use CommonJS I gave up, and in place of dynamic import I used the "good" ol' `require()`, ending up with something like this: const { ServiceBus } = (isDev ? require('./my-service-bus') : require('@azure/service-bus')) as import('@azure/service-bus');
.And that was that. Project maintainers have to make ES Modules practical before it's pretty. |