Running GData Applications

## Running GData Applications Running GData Applications — running and debugging GData applications |

## Running and Debugging GData Applications

### Environment variables

libgdata makes use of a few environment variables which affect how it runs, mainly with respect to debugging.

`LIBGDATA_FORCE_HTTP`. If this environment variable is defined, libgdata will force the use of HTTP for requests which would otherwise normally use HTTPS. This allows the network traffic to be debugged more easily.

`LIBGDATA_DEBUG`. If this environment variable is set to one of the following values, libgdata will give debug output (at various levels). If it's unset, no debug output will be produced.

0 | Output no debug messages or network logs.
1 | Output debug messages, but not network logs.
2 | Output debug messages and network traffic headers.
3 | Output debug messages and full network traffic logs.