json to std::string in c++ from an URL

Question

I want to implement something where I will get an URL which will be a link to JSON db, now I need to get the json from this URL and convert it to std:string in a c++ file. Is there any easy way to do this.

Please specify a platform. Windows comes with a built-in HTTP library (WinInet), on *nix there's libcurl and many others... — Seva Alekseyev
– Seva Alekseyev, Commented Mar 12, 2010 at 20:51

greyfade · Accepted Answer · 2010-03-12 16:48:50Z

1

Use a library such as cURL (or one of many others available) to fetch the URL, and then store the result in an std::string.

answered Mar 12, 2010 at 16:48

greyfade

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2 Comments

rkb Over a year ago

I will appreciate if you can demonstrate some code as I havent used cURL before.

greyfade Over a year ago

cURL is quite well documented. Look for the "easy" API.

Konrad · Accepted Answer · 2010-03-12 17:46:03Z

0

If you are on Windows then there is no need to use cURL library - try the api call URLOpenBlockingStream. It is not hard to use and will download the JSON response from the server. JSON can be thought of as XML - it is structurally similar although there are noticeable syntactical differences. That said, it shouldn't be too hard to write a simple parser.

answered Mar 12, 2010 at 17:46

Konrad

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