Split SMTP API JSON into lines under 1000 chars

[XurdeFdez]

According with section Requirements and Limitations from http://sendgrid.com/docs/API_Reference/SMTP_API/ the JSON need to be splitted into lines under 1000 characters.
When ActionMailer detect white spaces wraps it automatically.

[chebyte]

hi @XurdeFdez first, thanks for the pr, could you update the specs? cause travis is failing

by the way is not better to do something like this(is just a pseudo code)?

 if @data.length < 1000
@data.to_json
else
JSON.generate(@data, {:indent => " ", :space => "", :space_before => "", :object_nl => "", :array_nl => ""})
end

and question, the space goes in indent? cause it generates a json like this

 "{ \"to\":[ \"email@email.com\"]}"

thanks

[XurdeFdez]

Hi @chebyte,
Now the specs are updated.
According to docs "Headers must be wrapped to keep the line length under 72", 1000 it's the hard limit in RFC 821.
The indetation is because "ActionMailer actually will handle folding and encoding the lines for you if you give it the proper spacing to do so"
Regards.

[DavidAllison]

@chebyte@XurdeFdez Any word on getting this merged? I didn't review the code but this is a useful feature since it's a requirement

[kylejginavan]

I can merge if someone resolves the merge conflict.