How to Fix the Type Error: findByID is not a function in Node.js

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Understanding the Problem

Code Breakdown

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Implementing the Solution

To fix the error, you need to declare findById as a static method within the Anbieter class. Here’s how you can make the adjustment:

Step 1: Define the Static Method Correctly

You need to ensure findById is defined with the static keyword. Here’s an example of what your code should look like:

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Step 2: Utilize Async Functions for Database Queries

Since database operations are asynchronous, it's advisable to utilize async and await for these functions. Here's how you can structure your controller function properly:

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Key Changes Explained

By using the static keyword, you allow findById to be called without instantiating the class.

Adding async to the getAnbieterById function enables the use of await, which will wait for the database query to complete before sending a response.

Conclusion

If you continue to experience difficulties or have further questions, feel free to reach out or leave a comment below! Happy coding!