I am new to Kotlin and trying to understand how I can read and parse the .json file.
Say, I have a file Test.json with some json array and need to read the array and stored the content in mutable list.
I tried searching the blog but could not find the answer.
Thanks in advance.
It depends, if you know the format of the JSON file maps to one of your Kotlin classes then you could use a library such as Jackson, Gson, Klaxon or Moshi to convert the contents of the file to an instance of this class.
Alternatively you could manually parse the JSON using Java's JSONObjects and work through the nested map of JsonObjects/Values.
I personally use this Klaxon library to parse json file and use in in my android application.
which I think will do your work.
Add dependncy to your gradle.build file
compile 'com.beust:klaxon:0.30'
Related
I am using kotlin embeddable compiler to parse some kotlin files into the KtFile instances.
Is there a way to modify KtFile and generate new kotlin file content? Something like converting KtFile into, e.g. Kotlin Poet classes?
I am implementing protobuf recently in our kotlin project.
I am receiving the binary data and deserialising it to Proto object using the proto file.
But I would like have that converted to data class.
I could not find any supporting information about how to do this.
Is it possible to get data class from binary data or from deserialized proto object??
One solution might be to use pb-and-k which has the kotlin code generator and will generate data classes for you based off of the .proto files
If you have know the structure of the data and can write your data classes upfront, you might want to have a look at kotlinx.serialization. It is an official Kotlin project and supports protobuf out-of-the-box.
I work in tool theos projects and i want convert an object into JSON.
I need a easy to use library with examples for converting NSObjects to JSON and back again
I check a lot of question like this but i can't use them.
I use JSONModel library but i have a lot of errors.
Anybody body have a good tutorial or a sample code to convert NSObject to JSON?
I don't have any idea whether I can created a json or not.
How can I fix this?
Look at my library - https://github.com/DimasSup/BaseMangedObjectModel
With it you can serialize/deserialize any your class. aslo can save it to SQLite database if needed. Also there are NetworkHelper class which help you send/receive your classes from remote server.
Am developing a cocoa application, where I have to invoke java web scripts and fetch the response of the web script object and convert it into Objective C readable objects. I would then need to manipulate the fetched data for import, print, etc.
How to I interact with the web script and convert into cocoa readable objects?
Any pointers on the same, will be appreciated.
Thanks,
Nana
Convert the JSON string into an NSDictionary using tools like yajl, JSONKit or iOS5 JSON
Use https://github.com/elado/jastor to convert this NSDictionary to a real Objective-C class with typed properties, nested properties, arrays etc.
In iOS 5 native JSON parsing is supported (documentation). In addition you can use a number of third party libraries to download and parse JSON (see JSONKit and HTTPRiot or RestKit)
A full reference of awesome libraries can be found here.
How can I parse json from such as twitter etc in vb.net applications.
Use the DataContractJsonSerializer class of the System.Runtime.Serialization.Json namespace. You can use it's ReadObject method to deserialize the JSON stream.
You can use the JSon.Net library. I've never used it from VB.net but I assume it's CLS-compliant and it should work OK.