electron/docs/api/protocol.md

protocol

The protocol module can register a new protocol or intercept an existing protocol, so you can custom the response to the requests for various protocols.

An example of implementing a protocol that has the same effect with the file:// protocol:

var app = require('app'),
    path = require('path');

app.on('will-finish-launching', function() {
    var protocol = require('protocol');
    protocol.registerProtocol('atom', function(request) {
      var url = request.url.substr(7)
      return new protocol.RequestFileJob(path.normalize(__dirname + '/' + url));
    });
});

Note: This module can only be used after the will-finish-launching event was emitted.

protocol.registerProtocol(scheme, handler)

• scheme String
• handler Function

Registers a custom protocol of scheme, the handler would be called with handler(request) when the a request with registered scheme is made.

You need to return a request job in the handler to specify which type of response you would like to send.

protocol.unregisterProtocol(scheme)

• scheme String

Unregisters the custom protocol of scheme.

protocol.isHandledProtocol(scheme)

• scheme String

Returns whether the scheme can be handled already.

protocol.interceptProtocol(scheme, handler)

• scheme String
• handler Function

Intercepts an existing protocol with scheme, returning null or undefined in handler would use the original protocol handler to handle the request.

protocol.uninterceptProtocol(scheme)

• scheme String

Unintercepts a protocol.

Class: protocol.RequestFileJob(path)

• path String

Create a request job which would query a file of path and set corresponding mime types.

Class: protocol.RequestStringJob(options)

• options Object
  • mimeType String - Default is text/plain
  • charset String - Default is UTF-8
  • data String

Create a request job which sends a string as response.