How to read a local Json file using CEP

[defaultulc6m798pmaa]

my json content : { "name": "JA"}

var path = "my Json path";
var result = window.cep.fs.readFile(path);
 
cs.evalScript('alert(' + result.data + ')');  // object
cs.evalScript('alert(' + result.data.name + ')');   // undefined
cs.evalScript('alert(' + JSON.stringify(result.data)+  ')');  // { "name": "JA"}
cs.evalScript('alert(' + JSON.stringify(result.data).name+  ')');  // undefined

How can i get the "name" info : JA.

Thanks for your help !

[Mathias Moehl · Accepted solution]

JSON.stringify(result.data)

produces a string and hence

JSON.stringify(result.data).name

tries to access a property "name" of that string, which does not exist.

You probably want this (where the stringify effectively puts quotes around the name and adds any necessary escapes)

cs.evalScript('alert(' + JSON.stringify(result.data.name)+  ')');

[Justin Taylor-Hyper Brew · Accepted solution]

You want to parse the data, not stringify. It's already a string when you read it.

const cs = new CSInterface();
const dataStr = cep.fs.readFile('C:/path/to/file.json').data;
const dataObj = JSON.parse(dataStr);
const name = dataObj.name;
cs.evalScript('alert("' + name + '")');