CODEWITHSUNDEEP
javascriptjsonangular
Cody Pritchard
Cody Pritchard

Reputation: 897

Convert string with '=' to JSON format

I am trying to convert a string i receive back from an API into a JSON object in Angular.

The issue is that the string is not normalized to be parsed into JSON easily.

This is the string im working with:

"{rootCause=EJBusinessException: This is a sample exception thrown for testing additional info field, description=This is a more detailed description about the incident., stackTrace=com.springboot.streams.infrastructure.web.heartbeat.HeartbeatService.testServiceNow(HeartbeatService.java:200)}"

When trying to do JSON.parse(myStr) it throws an error due to invalid string format.

Is there an easy way to convert the listed string into a more correct JSON format, getting rid of the '=' and replacing them with ':' instead.

There is more to it than just .replace(/['"]+/g, ''), as even with that the string is not ready to be turned into JSON yet.

Hoping someone more versed in Javascript knows a trick i dont.

Upvotes: 1

Views: 606

Answers (2)

DynasticSponge
DynasticSponge

Reputation: 1441

As commenters have posted, unless you control the API or at least have documentation that output will always follow a specific format, then you are limited in what you can do. With your current example, however you can trim off the extraneous bits to get the actual data... (remove braces, split on comma, split on equals) to get your key:value pairs... then build a javascript object from scratch with the data... if you need json string at that point can just JSON.stringify()

var initialString = "{rootCause=EJBusinessException: This is a sample exception thrown for testing additional info field, description=This is a more detailed description about the incident., stackTrace=com.springboot.streams.infrastructure.web.heartbeat.HeartbeatService.testServiceNow(HeartbeatService.java:200)}"

var trimmedString = initialString.substr(1, initialString.length - 2);
var pairArray = trimmedString.split(',');
var objArray = [];
pairArray.forEach(pair => {
  var elementArray = pair.split('=');
  var obj = {
    key: elementArray[0].trim(),
    value: elementArray[1].trim()
  };
  objArray.push(obj);
});
var returnObj = {};
objArray.forEach(element => {
  returnObj[element.key] = element.value;
});
console.log(JSON.stringify(returnObj));

Upvotes: 1

HuntsMan
HuntsMan

Reputation: 792

You just need to manipulate the string before parsing it remove unecessary string that can cause error to the object like "{" and "}" and split it by "," example is in below.

var obj = {}, str = "{rootCause=EJBusinessException: This is a sample exception thrown for testing additional info field, description=This is a more detailed description about the incident., stackTrace=com.springboot.streams.infrastructure.web.heartbeat.HeartbeatService.testServiceNow(HeartbeatService.java:200)}" 

str.split(",").forEach((st, i) => {
 pair = st.split("=") 
 if(pair.length > 1) { 
   obj[pair[0].replace("{",'').replace("}", '').trim()] = pair[1] 
 } else {
  obj[i] = pair
 }
})

console.log(obj)

Upvotes: 2

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