Post to thread

[ky4k0b]

I needed some stuff to be posted into thread for my logging purposes on production, so I came up with the following:

1. add a new function for parsing response:

function get_thread_ts() {
    local response=$1
    echo "$(echo "$response" | jq -r .message.ts)"
}

2. in function send_message() add to json
   "thread_ts": "$thread_ts",
   (var $thread_ts can be empty, slack will ignore it)

3. in function send_message() execute get_thread_ts in else part:

if [[ $(get_ok_in_response "$post_result") != "true" ]]; then
    write_to_stderr "$post_result"
    exit_code=1
else
    get_thread_ts "$post_result"
fi

4. in main() add thread_ts for uploading files:
   upload_result="$(curl -F file=@"$filename" -F token="$token" $channels_param -F thread_ts="$thread_ts" https://slack.com/api/files.upload 2> /dev/null)"
5. add reading $thread_ts with -r key in parse_args()

And now I can do stuff like this:

thread_ts=$(echo anything|slacktee -q)
echo something|slacktee -r $thread_ts

[Chikashi-Kato]

Supporting thread is a cool idea and I appreciate your implementation proposal.
Let me consider about the idea!

[aairey]

I am willing to contribute this.
Will see if I find some time ...

Or @ky4k0b if you still have the code somewhere you can propose a PR 😄