Metamask: How do I generate a metamask mobile deep link programmatically?

Programmatically Generating Metamask Mobile Deep Links

As a developer, you are probably familiar with the popular MetaMask wallet and its ability to create deep links in your dApps. However, sometimes you may want to generate these links programmatically, rather than relying on manual input from users. In this article, we will explore how to do this programmatically.

Overview

To programmatically generate a Metamask mobile deep link, you can use the “web3” library to create a wallet URL and then replace the placeholders in the resulting string with your own values.

Step 1. Create a new wallet URL

First, create a new wallet URL using the MetaMask Web3 API. You can do this by running the following JavaScript code:

const web3 = require("web3");
const WalletUrlProvider = require("metamask-deeplinks-provider");
// Replace with your MetaMask provider information
const providerAddress = "0xYourWalletAddress";
const providerSecret = "YourWalletSecret";
const walletUrlProvider = new WalletUrlProvider({
provider: {
address: provider address,
secret: providerSecret,
},
});
// Generate a random token for the dApp
const tokenId = Math.floor(Math.random() * 1000).toString();
// Create a new wallet URL with placeholders for your values
const walletUrl = 

Now that you have generated the wallet URL, you need to replace all placeholders (e.g. {walletUrl}) with your values. You can do this by iterating over each placeholder and replacing it with a value.

const walletUrl =
// Replace ${walletUrlProvider.getWalletUrl()} with your provider address
const walletUrl = walletUrl.replace("${walletUrlProvider.getWalletUrl()}", ${providerAddress});
// Replace ${tokenId} with your dApp ID (e.g. "tipme.cash")
const tokenId = "type.cash";
const walletUrl = walletUrl.replace("${tokenId}", token ID);

3. Step 2: Get the URL

After replacing all the containers, you need to retrieve the resulting URL using the MetaMask Web3 API. This can be done by calling the getWalletURL method on the WalletUrlProvider instance:

const walletUrlProvider = new WalletUrlProvider({
provider: {
address: provider address,
secret: providerSecret,
},
});
// Get the resulting URL using WalletUrlProvider.getWalletURL()
const walletUrl = walletUrlProvider.getWalletURL();

Putting it all together

Here is an example of how it all can be put together:

``javascript

const walletUrl =

// Replace ${walletUrlProvider.getWalletUrl()} with your provider address

const walletUrl = walletUrl.replace("${walletUrlProvider.getWalletUrl()}", ${providerAddress});

// Replace ${tokenId} with your dApp ID (e.g. "tipme.cash")

const tokenId = "type.cash";

const walletUrl = walletUrl.replace("${tokenId}", token ID);

// Get the resulting URL using WalletUrlProvider.getWalletURL()

const walletUrl = walletUrlProvider.

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