Question 1

How do I set up authentication for Kane with Google Cloud?

Accepted Answer

You need to configure the Goth library with your GCP JSON credentials, then fetch a token and pass it to Kane. The README shows using Goth.fetch to get a token and include it in the Kane struct for operations.

Question 2

Kane vs Google's official Pub/Sub client for Elixir: which is better?

Accepted Answer

Kane offers a more idiomatic Elixir API and simpler setup for basic operations, but Google's official client might have more features and better support for advanced Pub/Sub capabilities. Choose Kane for simplicity or the official client for completeness.

Question 3

How to handle errors when processing messages with Kane?

Accepted Answer

Kane doesn't have built-in retry mechanisms; you must implement error handling manually, such as not acknowledging failed messages to rely on Pub/Sub's redelivery or setting up dead-letter topics in GCP.

Question 4

Does Kane support streaming or asynchronous message consumption?

Accepted Answer

No, Kane only supports synchronous pull operations. For streaming, you'd need to implement a custom loop or consider other libraries that support asynchronous consumption, as it's not covered in the README.

Question 5

Can I use Kane to create topics and subscriptions programmatically?

Accepted Answer

No, Kane requires topics and subscriptions to be pre-existing in GCP. You must create them manually using the GCP console, CLI, or another library before using Kane for messaging.

Question 6

What are the performance implications of using Kane for high-volume messaging?

Accepted Answer

Kane's bulk acknowledgement helps with efficiency, but since it uses synchronous pulls, it may not scale well for very high throughput compared to streaming approaches. You might need to optimize batch sizes or consider alternative clients.

kane

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