API Cursor Pagination Performance : conversations.list

The behavior characteristics and performance of iterating the cursor through conversations.list is truly awful when it is being used to resolve a channel name to a channel id.

For example, if I create a new channel in an org that's been around for a while, with limit=200, that channel is returned on page 135, and the pagination sequence takes 7m38.503s to resolve with 20 calls per minute (tier 2 rate limit).
When inspecting the responses, it can be seen that the channels returned never reach the limit count, and progressively diminish, eventually returning no results across cursors, sometimes 2, sometimes 10, etc., until finally resolving.

Please, either create a new class of methods that support resolving user or channel names directly to their IDs, or optimize the data that feeds the pagination to enable the methods to return valuable data earlier in the pagination sequence.

This is related to the last bullet under Just The Facts:

It's possible to receive fewer results than your specified limit, even when there are additional results to retrieve.

Note
This started when looking at chat.update and seeing that it required a channel id rather than a channel name (I tested it and it's not just a docs issue...). Rather than fixing the above situation, if you can align the chat.postMessage and chat.update methods to both accept a channel name, then that would satisfy my original problem. Though, the above deficiency will still exist. I've made a separate issue for this here.

Category (place an x in each of the [ ])

• [X ] slack_sdk.web.WebClient (sync/async) (Web API client)
• slack_sdk.webhook.WebhookClient (sync/async) (Incoming Webhook, response_url sender)
• slack_sdk.models (UI component builders)
• slack_sdk.oauth (OAuth Flow Utilities)
• slack_sdk.socket_mode (Socket Mode client)
• slack_sdk.audit_logs (Audit Logs API client)
• slack_sdk.scim (SCIM API client)
• slack_sdk.rtm (RTM client)
• slack_sdk.signature (Request Signature Verifier)

Start with the slack_sdk.web.WebClient entry points for conversations.list, chat.update, and chat.postMessage, then inspect how cursor pagination and channel-name handling are exposed. The issue presents multiple possible solutions, so done requires choosing and specifying whether the SDK should resolve names directly, optimize pagination, or align message methods, with tests covering the selected behavior.