Slack Command Example Doesn't Work

[jaypeng2015]

Version: 0.20.1

I am trying to create a slack command by following: http://gosparta.io/docs/apigateway/example3/, but there are some things break:

• Should return on error
  There a several if err != nil {...} which send 500 error to the client. However the function doesn't stop after doing that but still executes the rest lines.

• Missing Content Type

  The last step of this function

  w.Write(responseBody)
  

  Send the content as text. Requires w.Header().Set("Content-Type", "application/json") to make it work.

• Custom Event Type
  The whole part doesn't work for me. What I received from API Gateway is already JSON, not a form string, so I created a new struct:

  type slashCommandJSONBody struct {
    Token       string `json:"token"`
    TeamID      string `json:"team_id"`
    TeamDomain  string `json:"team_domain"`
    ChannelID   string `json:"channel_id"`
    ChannelName string `json:"channel_name"`
    UserID      string `json:"user_id"`
    UserName    string `json:"user_name"`
    Command     string `json:"command"`
    Text        string `json:"text"`
    ResponseURL string `json:"response_url"`
  }
  

  And then changed body to Body slashCommandJSONBody json:"body"`` to make it work.

• Integration mapping breaks on empty fields
  If the command has no text, e.g. /weather, the original body will be something like "user_id=U12345&text=&command=/weather", then the api gateway will just return 500 error.
  From the source code I found this ## Ref: https://gist.github.com/ryanray/668022ad2432e38493df, and from that link I can see someone else was having the same issue. As long as I put text in, everything work fine.

[mweagle]

Thanks for the feedback @jaypeng2015 - things have changed quite a bit since the time I initially worked on that example. Fixes in progress. tyvm.

[mweagle]

Hi @jaypeng2015 - I've updated the demo together with the upcoming 0.20.2 release. With the changes things appear to be back functioning.

[jaypeng2015]

Thanks @mweagle , I will test this again after the release.

[mweagle]

Hi @jaypeng2015 - I've released 0.20.2 & updated the sample at https://github.com/mweagle/SpartaSlackbot/blob/master/slack.go. Please LMK if this resolves the issue. Thanks!

[jaypeng2015]

Tested on 0.20.3 and it went well.
Thanks @mweagle, I will close this issue now.