On 28 Jul 2015, at 22:13, Aaron Meriwether <me_at_ameriwether.com> wrote:

> libcurl does not provide methods for manipulating JSON. You will need to compose your JSON document via some other mechanism, then pass the finished document to libcurl.
> The simplest way to compose a JSON document in C is probably to use sprintf to interpolate your data into a JSON skeleton.

Or (better, particularly if your document has strange characters in that need escaping, like quotes), a JSON library, e.g. cjson.
  http://sourceforge.net/projects/cjson/

-- 
Alex Bligh
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