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Showing content from https://github.com/alexpermyakov/simple-react-notifications below:

alexpermiakov/simple-react-notifications: Tiny React.js notification library (1kb gzip).

Tiny library (only 1kb gzip) that allows you to add notifications to your app. We don't want to blow up our bundle size because of notifications, right?

https://alexpermyakov.github.io/simple-react-notifications/

Despite the small size, it supports:

• Rendering success and error default notifications
• Rendering user defined component
• Positioning
• Configuring all in one place
• Animation
• Remove notification items programmatically

$ npm install simple-react-notifications
$ yarn add simple-react-notifications

Notifier has a few built-in components for displaying an error or a successfull operation:

import React from "react";
import notifier from "simple-react-notifications";
import "simple-react-notifications/dist/index.css";

const App = () => (
  <div>
    <button
      onClick={() => {
        notifier.success("Your items have been updated");
        // notifier.error("Something went wrong, try again.");
      }}
    >
      Lets render a default component
    </button>
  </div>
);

The real power comes with rendering our own component. In this case it's not even a notification, just a view with real data:

const RouteInfo = ({ header, onClosePanel }) => (
  <div
    className="route-info"
    onClick={onClosePanel}
    style={{
      height: "200px",
      background: "#54cea7",
      color: "white",
      padding: "8px 16px",
      position: "relative",
      boxShadow: "rgba(0, 0, 0, 1) 0px 0px 14px 2px"
    }}
  >
    <h3 className="subtitle">{header}</h3>
    <p>Bicycle 2.4 km, 8 min.</p>
    <p>Use caution - may involve errors or sections not suited for bicycling</p>
    <button
      className="button"
      style={{ position: "absolute", bottom: "16px", right: "16px" }}
    >
      Use this route
    </button>
  </div>
);

It completely up to us the way we add styles. We can use styled-components or whatever we like. The notify() method will just render it:

const App = () => (
  <div>
    <button
      onClick={() =>
        notifier({
          render: ({ id, onClose }) => (
            <RouteInfo
              key={id}
              onClosePanel={onClose}
              header={"The shortest way to ride home."}
            />
          )
        })
      }
    >
      Notify with just a text message!
    </button>
  </div>
);

As you can see here, render() receives onClose callback, which we have to pass inside our component in order to close the notification when user click on the button.

By default, all items will be positioned in the top right corner. The following values are allowed: top-right, top-center, top-left, bottom-right, bottom-center, bottom-left.

const App = () => (
  <div>
    <button
      onClick={() => {
        // notifier({
        //   position: "top-left"
        // });

        notifier({
          single: true, // display only the latest item
          position: "top-center",
          render: ({ id, onClose }) => (
            <RouteInfo
              key={id}
              onClosePanel={onClose}
              header={"The shortest way to ride home."}
            />
          )
        });
      }}
    >
      Show two of them in different places
    </button>
  </div>
);

Instead of specifing all params again and again for each item, we can put it in one place:

notifier.configure({
  autoClose: 2000,
  position: "top-center",
  delay: 500,
  single: false,
  width: "480px"
});

const App = () => (
  <div>
    <button
      onClick={() => {
        notifier.success("Your items have been updated");
      }}
    >
      Display an item with 500 ms delay. Now it is done in configure()
    </button>
  </div>
);

Params in notifier function will override their default values in configure().

First, define the css-animation somewhere in your .css file:

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeOut {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}

Second, specify it during the notifier() call or in configure():

notifier.configure({
  position: "top-center",
  animation: {
    in: "fadeIn", // try to comment it out
    out: "fadeOut",
    duration: 600 // overriding the default(300ms) value
  }
});

const App = () => (
  <div>
    <button
      onClick={() => {
        notifier.success("Your items have been updated");
      }}
    >
      Show two of them in different places
    </button>
  </div>
);

You can specify only in or out params as well.

import React from "react";
import notifier from "simple-react-notifications";

notifier.configure({
  render: ({ id, onClose }) => (
    <RouteInfo
      key={id}
      onClosePanel={onClose}
      header={"The shortest way to ride home."}
    />
  )
});

class App extends React.Component {
  id = null;

  render() {
    return (
      <div>
        <button onClick={() => (this.id = notifier())}>Notify</button>
        <button onClick={() => notifier.dismiss(this.id)}>Dismiss</button>
        <button onClick={() => notifier.dismiss()}>Dismiss all</button>
      </div>
    );
  }
}

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