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The Button component includes built-in loading state functionality for async operations.

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Component Location

services/frontend/src/components/ui/button/
├── Button.vue      # Enhanced button component with loading states
└── index.ts        # Button variants and exports

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Features

  • Automatic spinner with Loader2 icon from lucide-vue-next
  • Auto-disable during loading to prevent double submissions
  • Optional loading text to display custom messages
  • Size-aware spinner that scales with button size
  • Works with all variants (default, destructive, outline, etc.)

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Props

PropTypeDefaultDescription
loadingbooleanfalseShows spinner and disables button
loadingTextstringundefinedOptional text during loading
disabledbooleanfalseDisable independent of loading
variantstring'default'Button style variant
sizestring'default'Button size (sm, default, lg, icon)

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Usage Example

<script setup lang="ts">
import { ref } from 'vue'
import { Button } from '@/components/ui/button'
import { toast } from 'vue-sonner'

const isSubmitting = ref(false)

const handleSubmit = async () => {
  isSubmitting.value = true
  try {
    await saveData()
    toast.success('Saved successfully')
  } catch (error) {
    toast.error('Save failed', { description: error.message })
  } finally {
    isSubmitting.value = false
  }
}
</script>

<template>
  <Button 
    :loading="isSubmitting"
    loading-text="Saving..."
    @click="handleSubmit"
  >
    Save Changes
  </Button>
</template>

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Implementation Details

The component automatically:
  • Displays a spinning Loader2 icon when loading is true
  • Hides the original slot content during loading
  • Shows loadingText alongside the spinner (if provided)
  • Disables the button to prevent multiple clicks
  • Adjusts spinner size based on button size prop
For implementation details, see the source code at services/frontend/src/components/ui/button/Button.vue.