# ca-tango-db-cache-mgr

## Installation

### Dependencies

#### hiredis

Either install from package manager or

> git clone https://github.com/redis/hiredis.git

> cd hiredis

> mkdir build && cd build

> cmake .. -DCMAKE_INSTALL_PREFIX=/usr/local/hiredis

> make -j9 && sudo make install

#### redis-plus-plus

> git clone https://github.com/sewenew/redis-plus-plus

> cd redis-plus-plus

> mkdir build && cd build

If redis has been manually installed in /usr/local/hiredis, then execute

> cmake .. -DCMAKE_INSTALL_PREFIX=/opt/redis-plus-plus -DCMAKE_PREFIX_PATH=/opt/hiredis -DHIREDIS_HEADER=/opt/redis-plus-plus/include

otherwise the options -DCMAKE_PREFIX_PATH and HIREDIS_HEADER is not necessary.
We experienced that CMAKE_PREFIX_PATH is not enough to let redis plus plus include hiredis files
correctly, and we need to add also -DHIREDIS_HEADER. 

> make -j9 

> sudo make install 

### service Installation

Assuming the paths mentioned above were used to install hiredis and redis-plus-plus:

> git clone https://gitlab.elettra.eu/puma/server/ca-tango-db-cache-mgr

Adjust PKG_CONFIG_PATH according to the caserver-lib, hiredis, redis-plus-plus, cumbia-libs
installation paths. For example:

> export PKG_CONFIG_PATH=/opt/caserver-lib/lib/pkgconfig:/opt/hiredis/lib/pkgconfig:/opt/redis-plus-plus/lib/pkgconfig:$PKG_CONFIG_PATH

*nlohmann-json* dependency is also required. You can place a copy in the *subprojects* directory if the
package is not installed system-wide



### request syntax

> curl -v http://woody.elettra.eu:9296 -d $'{"srcs":[{"src":"test/device/1/double_scalar"}]}'