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Toasts are a simple way to feed back information to the user. They are used within the library e.g. to show error notifications or confirmations, such as copying an address to the clipboard. See the Storybook for a demonstration & documentation of the different toasts.

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Spawning Toasts

Much like modals, toasts are spawned with the toast object’s methods: 
import { toast } from '@kiruse/cosmos-components';

toast.info('This is an info toast');
Unlike other components, but much like modals, there are two ways to replace toasts:
  • Replace the cosmos-toast component with your own custom element, or
  • Replace the properties of the toast object.
Currently, the only special toast is the toast.errorlink toast. It takes & a short message and produces a toast with a link to spawn an error modal with the formatted error details. 
import { toast } from '@kiruse/cosmos-components';

toast.errorlink(new Error('This is an error'), { message: 'An error occurred' });

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Replacing the cosmos-toast component

Currently, the best way to create a uniform toast design is to replace the cosmos-toast component with your own custom element. 
import { CosmosComponents } from '@kiruse/cosmos-components';

class MyToast extends HTMLElement {
  // ... define your custom element
}

CosmosComponents.default()
  .with('cosmos-toast', MyToast)
  .register();
Alternatively, of course, you could simply build your own toasts on top of cosmos-toast and customize them to your liking. Toasts come in 4 variants:
  • info
  • success
  • warning
  • error
And typically have a lifespan.

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Replacing the toast methods

Rather than exporting the Toast methods directly, exporting them under a toast object allows you to replace the methods with your own custom ones. This allows you to integrate the Cosmos Components with your own frontend framework. The info, success, warning, and error methods internally call the toast.show method with the appropriate variant.
toast-shim.ts
import { toast, type ToastAttributes } from '@kiruse/cosmos-components';

toast.show = (content: HTMLElement | string, attributes: ToastAttributes = {}) => {
  myToastFactory.show({ content, attributes });
};

function MyToast({ content, attributes }: { content: HTMLElement | string, attributes: ToastAttributes }) {
  const [container, setContainer] = useState<HTMLDivElement>();

  useEffect(() => {
    if (!container) return;
    container.innerHTML = '';
    container.appendChild(content);
  }, [container]);

  useEffect(() => {
    attributes.lifespan && setTimeout(() => {
      container?.remove();
    }, attributes.lifespan);
  }, []);

  return (
    <div ref={setContainer} className={attributes.variant} />
  );
}
This will allow the Cosmos Components to use your own toast system.
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