You'll need your app_name which is the name of the Application you created on your DSP. Make sure to set these variables in sdk-init.js:
//replace this dsp_url with yours ( leave the /rest/api_docs part ) var dsp_url = "https://_your_dsp_hostname_here_/rest/api_docs"; //replace this app_name with yours var app_name = "your_app_name_here_";
Check your API Documentation in the Admin app of your DSP for more info on APIs in the SDK(required params, status codes, etc)
Click Here for a primer on using APIs defined for Swagger.