Blockstack

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Blockstack is

Authentication

Blockstack can work as an authentication provider for other Blockstack apps or for traditional websites. You can use the local app or the web version to perform the log-in service.

• Blockstack.js source
• HelloBlockstack.com auth example

Using Blockstack

Install

To install yo and the Blockstack generator globally run:

sudo npm i -g yo generator-blockstack

To generate the app structure and install dependencies run (in the project directory):

yo blockstack
npm i

Then you can start the app like so:

npm run start

It will open a window in your browser at http://localhost:5000/

Notes

Manifest File

Blockstack needs access to a manifest.json file for the purposes of obtaining the details of your app, the file must have the following headers set:

• Access-Control-Allow-Origin "*"
• Access-Control-Allow-Methods "GET, POST, PUT, DELETE"
• Access-Control-Allow-Headers "Content-Type"

If your manifest.json file does not have the correct domain/ip of the blockstack site requesting your ip it will complain that the "Access-Control-Allow-Origin" header is not set.
There does appear to be some caching issues with the app making it not work - try restarting the browser.

Login Page

The login page appears to need the header: Access-Control-Allow-Origin "*" set.