CODEWITHSUNDEEP
javascriptjson
Sourav Das
Sourav Das

Reputation: 727

How to extract error code from a JSON error message

Error message is showing like below.

"{\"errorCode\":\"2029\",\"errorMessage\":\"Duplicate Entry\"}"

How do I extract errorCode from above in javascript?

Upvotes: 1

Views: 1228

Answers (2)

Supun Sadeepa
Supun Sadeepa

Reputation: 39

This is a JSON encoded object. In order to access the properties of the encoded object, you need to json decode it first. You can use JSON.parse(). Then you can get its properties simply by property name.
Eg:

let encodedString = "{\"errorCode\":\"2029\",\"errorMessage\":\"Duplicate Entry\"}";
let decodedObj = JSON.parse(encodedString);

console.log(decodedObj.errorCode); // prints "2029"

You can use parseInt() to extract the error code as a number rather than a string. Eg:

console.log(parseInt(decodedData.errorCode)); // prints 2029

Upvotes: 0

LeeLenalee
LeeLenalee

Reputation: 31331

You can parse the error message to an object and then select the errorCode:

const errorMessage = "{\"errorCode\":\"2029\",\"errorMessage\":\"Duplicate Entry\"}";
const errorMessageObject = JSON.parse(errorMessage);
const errorCode = errorMessageObject.errorCode;

console.log(errorCode)

Upvotes: 2

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