How to Successfully Pass an Array of datetime from Vue.js to an ASP.NET Core API

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The Problem

When sending an array of datetime values to an ASP.NET Core API endpoint, it’s important to ensure that the data format adheres to the expected structure on the server side. In your case, the API is defined to accept a list of publicHolidays as a query parameter.

Your initial API endpoint implementation looks like this:

[[See Video to Reveal this Text or Code Snippet]]

Problematic API Call

The initial API call you were attempting looked like this:

[[See Video to Reveal this Text or Code Snippet]]

The URL constructed from this call was in the format that ASP.NET Core does not recognize:

[[See Video to Reveal this Text or Code Snippet]]

The correct URL formatting that the API expects is:

[[See Video to Reveal this Text or Code Snippet]]

The Solution

Step 1: Modify the API Call

Instead of using JSON.stringify() to serialize the array of publicHolidays, you can directly set the object property in the parameters which Axios will handle correctly. Here's how you can do this:

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Verify the Correct URL Format

After making the change, Axios will generate the URL in the desired format automatically. Check the resulting URL in the network tab of your browser:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

Now, you can seamlessly pass your datetime arrays and focus on building great features for your users. Happy coding!