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Echo is incompatible with BROADCAST_CONNECTION=ably

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
48/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
typescript
Domain
frontend

Research direction

Start with Echo's PusherConnector and compare its Ably subscription channel with the Laravel broadcasting documentation linked in the issue. Reproduce the setup with BROADCAST_CONNECTION=ably and inspect the browser and Ably console logs. Done means Echo subscribes to the same channel format Laravel uses and receives the broadcast event.

Written by the indexing model from the issue text.

Description

needs more info
Echo Version

2.2.0

Laravel Version

12.25.0

PHP Version

8.4.11

NPM Version

PNPM 10.15.0

Database Driver & Version

No response

Description

I tried setting up broadcasting with Ably according to the docs: https://laravel.com/docs/12.x/broadcasting.#client-ably. After following all steps and debugging, I concluded that Laravel ably driver is incompatible with Echo.

The problem is:

  • Laravel ably driver broadcasts to private:broadcast (colon).
  • laravel-echo library subscribes to private-broadcast (hyphen).

In order to fix this, Echo should use colons when subscribing to Ably. For the purpose of confirming that this approach would work, I edited PusherConnector in Echo source locally. I replaced colons to hyphens and Echo started working as expected.

Steps To Reproduce
  1. Follow Laravel docs to setup broadcasting with Ably.
  2. Setup basic front-end for testing.
  3. Run the queue using sail artisan queue:work or similar.
  4. Set Pusher.logToConsole = true;.
  5. Test using the front-end. You will see that Ably does not return anything.
  6. Check front-end logs in the console. The subscribed endpoint uses a hyphen.
  7. Check Ably dev console using their web client. Laravel uses a colon to broadcast with BROADCAST_CONNECTION=ably.
Dominant language
TypeScript
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Forks
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Avg merge
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Merged PRs (30d)
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Getting set up

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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