CODEWITHSUNDEEP
javascriptjsonpostman
sansSpoon
sansSpoon

Reputation: 2185

String replace with with unescaped curly brace in JSON

I'm trying to replace a value in a string with a double curly (used by postman for variable substitution), but every time I try to quote or escape the braces, I always get additional escaped quotes or double escaped braces, all of which break the substitution:

Original String:

"header": [{"key": "x-device-auth","value": "\"token\""}]

OriginalString.replace('token','{{token}}')

Result:

"header":[{"key":"x-device-auth","value":"\"{{token}}\""}]

If I search for .replace('\"token\"','{{token}}'), I don't get a match. The final string needs to be:

"header": [{"key": "x-device-auth","value": "{{token}}"}]

Upvotes: 1

Views: 1510

Answers (2)

Christoph Herold
Christoph Herold

Reputation: 1809

You should be looking for token with the escaped wrapping double quotes, since you also want to replace those.

var originalString = '"header": [{"key": "x-device-auth","value": "\\"token\\""}]';
console.log(originalString);
console.log(originalString.replace('\\"token\\"','{{token}}'));

originalString = '"header": [{"key": "x-device-auth","value": "\"token\""}]';
console.log(originalString);
console.log(originalString.replace('"token"','{{token}}'));

I have added two cases, one with the original string actually containing backslashes (first originalstring definition). The second without. Choose the one, that best matches your actual input :-)

Upvotes: 2

Tukaram Bhosale
Tukaram Bhosale

Reputation: 368

I dont see the input string is having proper escape characters applied. As you posted question in javascript tag, I tried below with javascript and its giving required results.

var str = "\"header\": [[{\"key\": \"x-device-auth\",\"value\": \"token\"}]";
  var res = str.replace('token','{{token}}');

Upvotes: 0

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