2023-11-24
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#node#typescript
Aman Mittal
22050
Nov 24, 2023 ⋅ 8 min read

How to set up TypeScript with Node.js and Express

Aman Mittal 👨‍💻 Developer 👉 Node.js, React, React Native | Tech Blogger with 1M+ views on Medium

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38 Replies to "How to set up TypeScript with Node.js and Express"

  1. What’s the best command setup for deploying and running something like this in production? There are now compiled JS files in build/, but other files (e.g., package.json, static HTML, etc.) are all in their original locations. And, we haven’t created a script in package.json to run the built app.

  2. okayy,, then how can i use other plugin to work with my express typescript. am i should install plugin that support in typescript or not ?

  3. Choose any middleware you need, but make sure DefinitelyTyped has the corresponding Typescript @types/* mappings available. Most popular NodeJS middleware packages are supported in the DefinitelyTyped project.

    1. Hey, if you are running localhost, you do not require “https” until you want to intentionally use HTTPS.

    1. In the article above, the “outDir” is referring to the config option. The “./dist” is the value.

      Are you referring to something specific? Can you please point me to that?

    1. The `main` poperty in the `package.json` indicates the entry point and it should point out to Javascript compiled output. So it should be “main”:”dist/index.js” as we are using typescript here, if it was just just Javascript we can just use the index.js.

      1. Thanks. Ok just so everyone is 100% clear. package.json should be changed to:
        “main”: “dist/index.js”,

  4. had to remove “module”: “commonjs” from tsconfig.js as the error “ReferenceError: exports is not defined in ES module scope”

  5. anyone has a sample github repo for this? please include an example repo so we know where to place the files at. im guessing all the files should be in an dist folder?

  6. This is an excellent article that helped me complete what I sought out to do. I have one suggestion, where there is a suggestion to update nodemon.json with this script:
    {
    “watch”: [“src”],
    “ext”: “ts”,
    “exec”: “concurrently \”npx tsc –watch\” \”ts-node src/index.ts\””
    },
    I would have found it helpful to add a comment about installing concurrently. It was suggested earlier in the article but not in the same general vicinity of the nodemon.json change.

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