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It also pays to use nestat if you are using a linux based operating system to see if you have blocked ports. Fox

Hello Zaaphod, Unique roles are added in the user menu. When creating a new user we add the user name to the "Roles (permission groups)" setting. This creates a new user role in the system. We then assign that role to the read / set settings on the data points and dashboards as needed. [image: 0II0kdE.png] I hope this is what you were looking for. Cheers Brian

@zaaphod said in JSON RETRIEVER: Error 400: {"slot":0,"io":{"di":[ {"diIndex":0,"diMode":0,"diStatus":0}, {"diIndex":1,"diMode":0,"diStatus":0}, {"diIndex":2,"diMode":0,"diStatus":0}, {"diIndex":3,"diMode":0,"diStatus":0} ]}} You're already 90% of the way there. I'd argue your code will be something like this since there is no "result" property in your incoming data. var data = JSON.parse(content); data = data.io.di; //lets get the info we want. However, you still need to be able to have a means to link what diIndex is what point. If you have the points configured with a specific XID or naming convention, we can use that to map it all together. Fox

@zaaphod Mango has jetty embedded into it and will configure it when Mango starts. I'm not sure what you are implying here. If you start mango via it's startup script you should see Mango on port 8080 by default.