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This repositor has been archived. Please visit web3modal.com for latest examples.

This is a vanilla JavaScript example how to use Web3modal with different wallet providers.

The purpose of this example is how to connect a cryptocurrency wallet to a website that is build on traditional HTML technologies and does not use any modern JavaScript framework. Uses cases would include: static HTML sites, WordPress, content management systems, tutorials and education.

The example works with

  • In-browser wallets (MetaMask, Opera, Brave),

  • Mobile wallets through QR code scanning (WalletConnect)

  • Account-based wallets (Fortmatic, others)

The code uses simple unprocessed in-browser JavaScript. Dependencies, like the Web3Modal library itself, are loaded over Unpkg CDN. The code is extensively commented and short.

screenshot2

screenshot

What should I do with this

Web3modal) is a vendor-neutral project offering an easy integration of cryptocurrency and decentralised finance for websites. For example, you can use this to start accepting cryptocurrency payments on your site or to start building a decentralised finance application.

Support

Go to Web3modal main Github repository.

Reach to us in Web3modal Discord or open a Github issue.

Web3 wallets and HTTPS hosting limitations

Because of limitations how wallet operate within a web browser and web security, you should not run this example, or any Web3modal code, out of your file system or insecure HTTP protocol (even using localhost).

The APIs of different wallet providers may fail in funny and obscure way. MetaMask does not even show up if you load it over file:// protocol.

The easiest way to get local HTTPS development is to use https-localhost.

Assuming you have a working Node environment set up on a UNIX system you can do:

npm i -g --only=prod https-localhost
sudo serve .

... in the folder of index.html file.

Then you can visit https://localhost to open the example.

Publishing example on Github

To republish the example:

git push origin master:gh-pages

This will push index.html to https://web3modal.github.io/web3modal-vanilla-js-example/