added payload to execution

* execution now contains payload for sending a body in POST/PUT calls
    * renamed data from execution to formData
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- [x] <a href='#crh-comment-General Comment'></a> <img src='http://www.codereviewhub.com/site/github-completed.png' height=16 width=60>&nbsp;<b><a href='https://github.com/EnoF/con-rest/pull/17#issuecomment-64163959'>General Comment</a></b>
- <a href='https://github.com/TheBay0r'><img border=0 src='https://avatars.githubusercontent.com/u/8627051?v=3' height=16 width=16'></a> :shipit:
- <a href='https://github.com/TheBay0r'><img border=0 src='https://avatars.githubusercontent.com/u/8627051?v=3' height=16 width=16'></a> We really need some documentation how proper API calls / workflows should look like with all possible parameters etc.
But the executions itself looks nice so far
- <a href='https://github.com/EnoF'><img border=0 src='https://avatars.githubusercontent.com/u/1508400?v=3' height=16 width=16'></a> We don't need to differentiate between these two in the db. Just during the execution of the call, right?
- <a href='https://github.com/dominikkukacka'><img border=0 src='https://avatars.githubusercontent.com/u/243319?v=3' height=16 width=16'></a> i would differentiate, because you could send both at the same time, right?
- <a href='https://github.com/dominikkukacka'><img border=0 src='https://avatars.githubusercontent.com/u/243319?v=3' height=16 width=16'></a> actually, you are right :)
i will rewrite it to an execution type thing, so one mongo object for data, and one field for execution type (payload, formData)
- <a href='https://github.com/EnoF'><img border=0 src='https://avatars.githubusercontent.com/u/1508400?v=3' height=16 width=16'></a> Awesome! Thanks!
Sent from my HTC
----- Reply message -----
From: "Dominik Kukacka" <notifications@github.com>
To: "EnoF/con-rest" <con-rest@noreply.github.com>
Cc: "Andy Tang" <andyt@live.nl>
Subject: [con-rest] added payload to execution (#17)
Date: Mon, Nov 24, 2014 11:05
actually, you are right :)
i will rewrite it to an execution type thing, so one mongo object for data, and one field for execution type (payload, formData)
---
Reply to this email directly or view it on GitHub:
https://github.com/EnoF/con-rest/pull/17#issuecomment-64172592
- <a href='https://github.com/EnoF'><img border=0 src='https://avatars.githubusercontent.com/u/1508400?v=3' height=16 width=16'></a> :shipit::gun:
- <a href='https://github.com/dominikkukacka'><img border=0 src='https://avatars.githubusercontent.com/u/243319?v=3' height=16 width=16'></a> i just completed the feature, it now takes two additional fields:
* type (can be formData or payload)
* data (can contain either a json object [payload/formData] or a string [payload])
- <a href='https://github.com/EnoF'><img border=0 src='https://avatars.githubusercontent.com/u/1508400?v=3' height=16 width=16'></a> dude, this is awesome :+1:


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could we extract these to a constants? And also I'd suggest the string to be all uppercase to make more clear that this is actually a constants :)