Update socket.io to the latest version 🚀

[greenkeeper[bot]]

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Version 2.1.0 of socket.io was just published.

Dependency	socket.io
Current Version	2.0.4
Type	dependency

The version 2.1.0 is not covered by your current version range.

If you don’t accept this pull request, your project will work just like it did before. However, you might be missing out on a bunch of new features, fixes and/or performance improvements from the dependency update.

It might be worth looking into these changes and trying to get this project onto the latest version of socket.io.

If you have a solid test suite and good coverage, a passing build is a strong indicator that you can take advantage of these changes directly by merging the proposed change into your project. If the build fails or you don’t have such unconditional trust in your tests, this branch is a great starting point for you to work on the update.

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Release Notes

2.1.0

Features

• add a 'binary' flag (#3185)

// by default, the object is recursively scanned to check whether it contains some binary data
// in the following example, the check is skipped in order to improve performance
socket.binary(false).emit('plain-object', object);

// it also works at the namespace level
io.binary(false).emit('plain-object', object);

• add support for dynamic namespaces (#3195)

io.of(/^\/dynamic-\d+$/).on('connect', (socket) => {
  // socket.nsp.name = '/dynamic-101'
});

// client-side
const client = require('socket.io-client')('/dynamic-101');

Bug fixes

• properly emit 'connect' when using a custom namespace (#3197)
• include the protocol in the origins check (#3198)

Important note ⚠️ from Engine.IO 3.2.0 release

There are two non-breaking changes that are somehow quite important:

• ws was reverted as the default wsEngine (socketio/engine.io#550), as there was several blocking issues with uws. You can still use uws by running npm install uws --save in your project and using the wsEngine option:

var engine = require('engine.io');
var server = engine.listen(3000, {
  wsEngine: 'uws'
});

• pingTimeout now defaults to 5 seconds (instead of 60 seconds): socketio/engine.io#551

Milestone: 2.1.0
Diff: 2.0.4...2.1.0
Engine.IO version: 3.2.x

Commits

The new version differs by 14 commits.

• db831a3 [chore] Release 2.1.0
• ac945d1 [feat] Add support for dynamic namespaces (#3195)
• ad0c052 [docs] Add note in docs for origins(fn) about error needing to be a string. (#2895)
• 1f1d64b [fix] Include the protocol in the origins check (#3198)
• f4fc517 [fix] Properly emit 'connect' when using a custom namespace (#3197)
• be61ba0 [docs] Add link to a Dart client implementation (#2940)
• c0c79f0 [feat] Add support for dynamic namespaces (#3187)
• dea5214 [chore] Bump superagent and supertest versions (#3186)
• b1941d5 [chore] Bump engine.io to version 3.2.0
• a23007a [docs] Update license year (#3153)
• f48a06c [feat] Add a 'binary' flag (#3185)
• 0539a2c [test] Update travis configuration
• c06ac07 [docs] Fix typo (#3157)
• 52b0960 [chore] Bump debug to version 3.1.0

See the full diff

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