KStitch

A KotlinJS Toolkit for the MongoDB Stitch API. This tool kit will also support an ODM (Object Document Mapper) in the future, watch this space!

Heavily inspired by KMongo: https://github.com/Litote/kmongo

Getting Started

Development

You can explore the source code either by browsing this repo or downloading KStitch from GitHub:

git clone https://github.com/fortytwoapps/kstitch.git

Installing

To setup KStitch and start using it in your project, add these lines to build.gradle:

repositories {
    maven { url = "https://dl.bintray.com/robert-cronin/fortytwoapps" }
}

dependencies {
    implementation "fortytwoapps:kstitch:4.9.0"
}

Usage

To start using KStitch in your project, simply import like this:

import com.fortytwoapps.kstitch.*

If you are familiar with the MongoDB Stitch JavaScript API, you can still use the Kotlin in much the same way:

Initializing and logging in:

import com.fortytwoapps.kstitch.browser.*

fun main(args: Array<String>){
    // Initialize default app client
    Stitch.initializeDefaultAppClient('<your-client-app-id>')
    
    // Login anonymously
    val client = Stitch.initializeDefaultAppClient('<your-client-app-id>')
    client.auth.loginWithCredential(AnonymousCredential())
        .then {user -> 
            console.log("Logged in as anonymous user with id ${user.id}")
        }
}

Calling a function:

client.callFunction("echoArg", ["Hello world!"])
    .then { echoedResult ->
        console.log("Echoed result: $echoedResult")
    }

Note: this requires a function called echoArg to be defined in the Stitch UI that looks like this:

exports = function(arg) {
  return {arg: arg};
};

BSON and Extended JSON

KStitch now comes with BSON support:

import com.fortytwoapps.kstitch.bson.ObjectID

val newId = ObjectID()

ODM Functionaltiy

Define a Kotlin class and use it in Stitch!

class User(
        var _id: ObjectID = "",
        var adminUser: Boolean = false,
        var email: String = "",
        var fullName: String = "",
        var age: Int = 18,
        var customFunction: Code = Code("console.log('Hello World')")
)

val mongoClient = client.getRemoteServiceClient("<your-service-name>")
val userDatabase = mongoClient.db("user")
val userDataCollection = userDatabase.collection<User>("userData")

val specificUser: User = userDataCollection.find(UserData::_id eq ObjectID("5e13f16fb3de4f44ccb386e8")).await().firstOrNull()

val adminUserList: List<User> = userDataCollection.find(UserData::adminUser eq true).await()

Built With

• stitch-js-sdk - The underlying JavaScript library used
• Travis CI - Continuous Integration
• Gradle - Dependency Management

Contributing

Feel free to contribute if you feel this toolkit is lacking for your application. Contributions are open.

Authors

• Robert Cronin - Initial work - robert-cronin

License

This project is licensed under the Apache 2.0 License - see the LICENSE.md file for details

Acknowledgments

• Hat tip goes to developers at MongoDB for developing the JavaScript Stitch API
• Template for this readme came from PurpleBooth