slackhar2csv

Turns a HAR file saved from Developer Tools' "Network" tab — after scrolling history in a Slack channel — to a CSV of timestamped channel messages.

Dependencies

Requires jq.

Usage

./slackhar2csv.sh <JSON_INPUT_FILE> <CSV_OUTPUT_FILE>

Longer blather on how to create the HAR file:

• Be in a browser (Chromium ones work best for this) tab with a target Slack channel and at the most recent channel history
• Open "Developer Tools"
• Reload the tab
• Scroll back as far as you want to collect message history
• From the "Network" tab in Developer Tools, save all as HAR

Limitations

No attempt is made to expand Slack handle identifiers to the bot or human they represent