@boursorama/typed-json v1.0.1

TypedJSON

🚚 A safe and elegant way to deal with Json data in TypeScript inspired by SwiftyJSON

What is it?

Safely interact with Json data by requiring the user to specify what type of data they want to extract.

let json = Json.fromString(jsonString)

// Gets the data under `someKey`, if a string returns it otherwise return undefined
json.get('someKey').string()
// Same but provides default empty string if `someKey` does not exists or is not a string
json.get('someKey').stringValue()

// Same exists for all json types
json.get('someKey').boolean()
json.get('someKey').booleanValue() // Will try to coerce the data to bool and returns false if couldn't
json.get('someKey').float()
json.get('someKey').floatValue() // Will try to coerce the data to double and returns 0 if couldn't
json.get('someKey').integer()
json.get('someKey').integerValue() // Will try to coerce the data to int and returns 0 if couldn't

// List items and Map values are wrapped in Json instances, which enables chaining acces to them
json.get('alist').array()
json.get('amap').object()

// If any path element does not exist or is not subscriptable, it'll return undefined
json.get(['you', 'can', 'chain', 'them']).string()

// If you want the unaltered data you can get it with `rawValue`
json.get('some').rawValue

// If you want list and map with unaltered values
json.get('list').arrayRaw()
json.get('map').objectRaw()

// If you get undefined, you can check if its the result of an illegal access
if (json.get('idontexists').exception !== undefined) {
  console.log('something went wrong')
}