GET/api/slack/conversations/history

Slack channel history (conversations.history)

Slack conversations.history — messages in a channel, including threads and reactions.

Mocks the conversations.history response. Returns messages drawn from the cross-system storyline — payer escalation discussions, KOL meeting summaries, congress reactions, sample ops Q&A. Thread parents include reply_count + reply_users.

Query parameters

Name	Type	Description
`channel`required	string	Channel ID (e.g., C07LAUNCH02 for #launch-war-room). e.g. `C07LAUNCH02`
`limit`	integer	Max messages returned. 1-1000. default: `100`
`oldest`	string	Slack ts to start from (passthrough, not enforced).
`latest`	string	Slack ts to end at (passthrough).

Response schema

Path	Type	Description
`ok`	boolean	Slack envelope.
`messages[]`	array	Most recent first.
`messages[].type`	string	Always 'message'.
`messages[].subtype`	enum \| undefined	bot_message \| channel_join \| thread_broadcast \| etc. Source: Slack message event subtypes
`messages[].user`	string	U-prefixed user ID.
`messages[].bot_id`	string \| undefined	Present on bot_message subtype.
`messages[].text`	string	Markdown fallback text.
`messages[].ts`	string	Unix seconds + microseconds (e.g., '1716840123.001900'). Also serves as message ID. Source: Slack ts convention
`messages[].team`	string	T-prefixed workspace ID.
`messages[].blocks[]`	array	Block Kit rich_text blocks. Source: Slack rich_text block
`messages[].thread_ts`	string \| undefined	Parent ts when message is part of a thread.
`messages[].parent_user_id`	string \| undefined	Author of the thread parent (on replies only).
`messages[].reply_count`	integer \| undefined	On thread parents.
`messages[].reply_users / reply_users_count / latest_reply`	mixed	Thread parent metadata.
`messages[].reactions[]`	array \| undefined	{ name, users, count } emoji reactions.
`has_more`	boolean	Slack pagination flag.

Behaviour notes

·Thread parents include reply_count, reply_users, latest_reply per Slack convention.
·Messages sorted most recent first.
·ts format: 10 digits seconds + dot + 6 digits microseconds.

Examples

Launch war room

curl 'http://localhost:3000/api/slack/conversations/history?channel=C07LAUNCH02&limit=10'

Market access payers

curl 'http://localhost:3000/api/slack/conversations/history?channel=C07MARKT03'

Payer escalations

curl 'http://localhost:3000/api/slack/conversations/history?channel=C07ESCAL04'

Sources

Slack conversations.historyhttps://docs.slack.dev/reference/methods/conversations.history
Slack conversations.replieshttps://docs.slack.dev/reference/methods/conversations.replies
Slack rich_text blockhttps://docs.slack.dev/reference/block-kit/blocks/rich-text-block
Slack message event subtypeshttps://docs.slack.dev/reference/events/message

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