An example for how to parse a json file

I like using the forum as note book. Here some code that shows how to parse the content of a json file.

//--------------------------------------------------------------
void ofApp::setup(){
//https://github.com/nlohmann/json
   
    string _fixtureBrand = "UKING";
    string _fixtureName = "RGBW";
    
    std::string path = ofToDataPath( "fixtures/"+_fixtureName+".json" );
    
    ofFile file( path );
    if( file.exists() ){
        ofLog() << "found file = "<<path<<", loading";
        ofJson json = ofLoadJson( path );

//        ofLog()<<json.size();
//        ofLog()<<json.back();
        
        string json_string = json.dump();
        ofLog()<<"json_string "<<json_string;

        ofLog << json[_fixtureBrand][_fixtureName]["PAN"];
        
    }else{
        ofLog() << "file not found for state name = "<<path;
    }      
}

My json file looks like this:

Posts: 1

Participants: 1

Read full topic