Hubot dies when reply a huge message

[jtomaszon]

Hey @ALL.
I don't know if this is a bug, but I'm trying to use hubot to reply a simple message with code: url:.
At the moment I just create a big array on the brain with:
[{code: "foo", url: "https://foo.bar"}, ...1000 more objects...]
We I called from the Slack, the first 17-20 items shows, and hubot exists with this output:

[Sat Dec 27 2014 21:21:37 GMT+0000 (UTC)] ERROR Received error [object Object]
[Sat Dec 27 2014 21:21:37 GMT+0000 (UTC)] ERROR undefined
[Sat Dec 27 2014 21:21:37 GMT+0000 (UTC)] ERROR Exiting in 1 second
[Sat Dec 27 2014 21:21:37 GMT+0000 (UTC)] ERROR Received error [object Object]
[Sat Dec 27 2014 21:21:37 GMT+0000 (UTC)] ERROR undefined
[Sat Dec 27 2014 21:21:37 GMT+0000 (UTC)] ERROR Exiting in 1 second
[Sat Dec 27 2014 21:21:37 GMT+0000 (UTC)] ERROR Received error [object Object]
[Sat Dec 27 2014 21:21:37 GMT+0000 (UTC)] ERROR undefined
[Sat Dec 27 2014 21:21:37 GMT+0000 (UTC)] ERROR Exiting in 1 second
[Sat Dec 27 2014 21:21:37 GMT+0000 (UTC)] ERROR Received error [object Object]
[Sat Dec 27 2014 21:21:37 GMT+0000 (UTC)] ERROR undefined
[Sat Dec 27 2014 21:21:37 GMT+0000 (UTC)] ERROR Exiting in 1 second
[Sat Dec 27 2014 21:21:37 GMT+0000 (UTC)] ERROR Received error [object Object]
[Sat Dec 27 2014 21:21:37 GMT+0000 (UTC)] ERROR undefined
[Sat Dec 27 2014 21:21:37 GMT+0000 (UTC)] ERROR Exiting in 1 second
[Sat Dec 27 2014 21:21:37 GMT+0000 (UTC)] ERROR Received error [object Object]
[Sat Dec 27 2014 21:21:37 GMT+0000 (UTC)] ERROR undefined
[Sat Dec 27 2014 21:21:37 GMT+0000 (UTC)] ERROR Exiting in 1 second
[Sat Dec 27 2014 21:21:37 GMT+0000 (UTC)] INFO Slack client closed

Even DEBUG mode doesn't show anything..
How could I help you to understand the error and fix it?

Thanks!

[jtomaszon]

I don't know if this is the best option to send an array with 50-100 objects to Slack..
If not, how is the best way to do?

  robot.respond /customers/, (r) ->
    for h, i in customers
      r.send "#{i + 1} - *#{h.code}* #{h.url}"

[jtomaszon]

This helps me this time :)

  robot.respond /customers/, (r) ->
    message = ""
    for h, i in customers
      message += "#{i + 1} - *#{h.code}* #{h.url}\n"
    r.send message

[evansolomon]

You're trying to send a non-string, which I suspect doesn't work that well, and the error message you're getting matches what happens when you try to stringify data with non-primitive types.

> [{code: "foo", url: "https://foo.bar"}].toString()
'[object Object]'

I bet if you do something like msg.send JSON.stringify(someGiantArray) you'll get a better result. Note: your message may end up getting split into multiple parts because of a limit in Slack's API for message size.