It's April 2019, what's a good tutorial on how to link a web dapp to scatter or some other mobile wallet?

Question

There have been a few tutorials on how to link scatter to a dapp which is just html/js, but those could be outdated due to the speed that eos has developed. What is the latest tutorial on how to link scatter or a mobile wallet to a dapp as of April 2019? What I'm interested in is how does one use their html/js application to communicate with the scatter desktop wallet and mobile wallets like Lynx/Meet.one --- How does clicking on the "login" button on the static html/js page make these wallets popup to prompt you to authorize a login?

Answer 1

Probably the best tutorial is to take a look at the Universal Authenticator Library - UAL and how it works.

Here are some helpful links:

• Medium Article about the UAL
• UAL Authenticator Walkthrough
• UAL Github-Repository

There are are several different UAL-Repositories + Usage-Examples for use with the different available Wallets.

• Scattter UAL
• Lynx UAL
• Ledger UAL
• Token-Pocket UAL
• Meet.One UAL

Answer 2

Scatter's documentation is pretty good, it has some decent examples and is what I used along with eosjs.

https://get-scatter.com/docs/getting-started

https://github.com/GetScatter/scatter-js

I assume you've already looked at those, but they're definitely the best starting points :)