I recently encountered an issue with receiving JSON data from a Node server that contained unnecessary slashes, making it difficult to parse. The JSON data looked like this:
"{\"responseCode\":200,\"headers\":{\"Access-Control-Allow-Origin\":\"*\",\"Content-Type\":\"application/json; charset=utf-8\",\"X-Powered-By\":\"Express\",\"Connection\":\"keep-alive\",\"Date\":\"Thu, 22 Sep 2016 08:12:39 GMT\",\"Content-Length\":\"21\",\"Etag\":\"W/\\"15-HeifZ4bmt+WxpIWDoartGQ\\"\"},\"response\":\"{\\"status\\":\\"UP\\"}\",\"bytesSent\":715779}"
To address this issue, I used a replace function followed by JSON.parse to convert the data back to its original JSON format. Here's a snippet of the code:
.then(function (result) {
var status = "";
var str = JSON.stringify(result);
console.log("str result ", str);
str = str.replace(/\\/g, "");
console.log("result after cleanup ", str);
var obj = JSON.parse(str);
status = obj.response.status;
}
After performing the replacement, the JSON data appeared as:
"{\"responseCode\":200,\"headers\":{\"Access-Control-Allow-Origin\":\"*\",\"Content-Type\":\"application/json; charset=utf-8\",\"X-Powered-By\":\"Express\",\"Connection\":\"keep-alive\",\"Date\":\"Thu, 22 Sep 2016 08:12:39 GMT\",\"Content-Length\":\"21\",\"Etag\":\"W/\"15-HeifZ4bmt+WxpIWDoartGQ\"\"},\"response\":\"{\"status\":\"UPLOADED\"}\",\"bytesSent\":715779}"
However, I encountered an error when trying to parse the data back into a JSON object:
var obj = JSON.parse(str);
It seems that the JSON data is still invalid due to the presence of slashes. This led me to the following questions:
- How can I refine my regex to remove these unnecessary slashes?
- What causes these slashes to be added to the response in the first place?