How to Resolve TypeError [ERR_UNKNOWN_FILE_EXTENSION] in BitGo-Express with TypeScript

Learn how to fix the `TypeError [ERR_UNKNOWN_FILE_EXTENSION]` in BitGo-Express while using TypeScript and avoid common pitfalls during the setup.
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Understanding the Error

First, let's break down the error message:

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Prerequisites

Ensure you have the following:

TypeScript installed globally or in your project

BitGo-Express and ts-node installed

If you don’t have these, install them using NPM:

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Step-by-Step Solution

Use ts-node for Execution

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Adjust TypeScript Compiler Options

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Import Statements

Use correct import statements in your TypeScript files. Sometimes, incorrect or mixed import/export can cause this issue.

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Handling Other Modules

Sometimes, third-party packages might not be transpiled. Ensure you include or transpile these as required.

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Conclusion

By using ts-node to run your application, ensuring correct TypeScript configurations, and maintaining proper module imports, you can resolve the TypeError [ERR_UNKNOWN_FILE_EXTENSION] efficiently. This improves your development workflow in integrating BitGo-Express within your TypeScript project.

Dealing with configuration issues can sometimes be tedious, but understanding the root cause and applying correct solutions ensures a smoother development experience.