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Copy-to-clipboard button with Stimulus

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                  <div data-controller="clipboard" data-clipboard-text-value="<%= invite_url(@invite) %>">
  <button type="button" data-action="clipboard#copy" class="rounded bg-gray-100 px-3 py-1">
    Copy invite link
  </button>
</div>

                  import { Controller } from "@hotwired/stimulus"

export default class extends Controller {
  static values = { text: String }

  async copy(event) {
    const btn = event.currentTarget
    const previous = btn.textContent

    try {
      await navigator.clipboard.writeText(this.textValue)
      btn.textContent = "Copied"
    } catch {
      // fallback: create a temporary input
      const input = document.createElement("input")
      input.value = this.textValue
      document.body.appendChild(input)
      input.select()
      document.execCommand("copy")
      input.remove()
      btn.textContent = "Copied"
    }

    setTimeout(() => (btn.textContent = previous), 1200)
  }
}

Copy buttons are everywhere (invite links, API keys, CLI commands). With Stimulus, I keep it tiny and resilient: use navigator.clipboard.writeText when available, and fall back to selecting a hidden input for older browsers. I also provide immediate feedback by swapping the button label to “Copied” for a second. This is a perfect example of where Hotwire shines: the baseline is simple server-rendered HTML, and a small controller adds polish without turning the page into a JS app. When I’m copying sensitive content, I keep it out of the DOM when possible and fetch it just-in-time, but for normal URLs this approach is straightforward.

Henry Kim

More from Henry Kim

Copy-to-clipboard button with Stimulus

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More from Henry Kim