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A step-by-step guide on passing hidden input values through Axios when developing with Vue.js and Laravel. Learn the effective methods to bind hidden inputs without using v-model.
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How to Pass Hidden Input in Vue.js to Axios for Laravel Integration

When building web applications using Vue.js and Laravel, there often arises a need to send data to your backend. One common challenge developers face is how to send hidden input values to the server when using Axios for HTTP requests. In this post, we'll explore how you can effectively pass hidden input values in a Vue.js form to a Laravel backend, without relying on v-model, especially when the values come from a loop.

The Problem at Hand

You may have encountered a situation where you need to pass an ID or a unique identifier from your Vue.js application to your Laravel backend without displaying it on the interface. Consider the following form structure where there's a hidden input for a contractor_user_id:

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While the above structure looks correct, the challenge arises from the fact that v-model does not work with hidden inputs. This is where we need to make some adjustments to ensure that the hidden value is included in our Axios POST request.

Solution Overview

We can tackle this challenge by modifying our form submission method in Vue.js to directly pass the hidden input value when the form is submitted. Here’s a step-by-step guide to implementing the solution.

Step 1: Modify Your Form

We’ll modify the @ submit.prevent event to accept a parameter, which will be the user_id from your data source. Change your form’s submit handler to the following:

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Step 2: Update the Vue Method

Now, let’s update the acceptBudget method in your Vue component to accept this parameter. You’ll set the user_id in the budget_form object right before making the Axios request. Here’s the updated method:

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Step 3: Update the Data Structure

Importantly, ensure your budget_form structure includes the user_id as follows:

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This organized structure will allow you to send the necessary data to your Laravel backend.

Conclusion

In summary, passing hidden input values from a Vue component to a Laravel backend using Axios does require some workarounds, particularly if you are dealing with values derived from loops. By following these steps, you ensure that your hidden input values are sent seamlessly along with other form data. Remember, modifying your form submission to accommodate these values is crucial, and updating your data structure accordingly will make your life easier when managing form submissions.

If you encounter any other issues while integrating Vue.js with Laravel, don't hesitate to reach out!