Relational Datastore to build Modern Apps

Easy to integrate on your mobile and web app!

Store and query relational data through GraphQL, REST, or Parse SDKs. Add business logic using cloud functions.

mutation {
createCharacter(input: {
    fields: {
      name: "Luke Skywalker"
      birthYear: "19BBY"
      homeworld: {
        createAndLink: {
          name: "Tatooine"
          population: 200000
        }
      }
    }
}) {
    character {
      id
      homeworld {
        id
      }
    }
}
}

GraphQL | Documentation

# Create Tatooine

curl -X POST \
-H "X-Parse-Application-Id: YOUR_APPLICATION_ID" \
-H "X-Parse-REST-API-Key: YOUR_REST_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"name": "Tatooine",
"population": 200000
}' \
https://parseapi.back4app.com/classes/Planet

# Create Luke Skywalker

curl -X POST \
-H "X-Parse-Application-Id: YOUR_APPLICATION_ID" \
-H "X-Parse-REST-API-Key: YOUR_REST_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"name": "Luke Skywalker",
"birthYear": "19BBY",
"homeworld": {
    "__type": "Pointer",
    "className": "Planet",
    "objectId": "TATOOINE_OBJECT_ID"
}
}' \
https://parseapi.back4app.com/classes/Character

// Create Tatooine

const Planet = Parse.Object.extend('Planet');
const tatooine = new Planet();
tatooine.set('name', 'Tatooine');
tatooine.set('population', 200000);
await tatooine.save();

// Create Luke Skywalker

const Character = Parse.Object.extend('Character');
const lukeSkywalker = new Character();
lukeSkywalker.set('name', 'Luke Skywalker');
lukeSkywalker.set('birthYear', "19BBY");
lukeSkywalker.set('homeworld', tatooine);
await lukeSkywalker.save();

Javascript | Documentation

// Create Tatooine

let tatooine = PFObject(className: "Planet")
tatooine["name"] = "Tatooine"
tatooine["population"] = 200000
try! tatooine.save()

// Create Luke Skywalker

let lukeSkywalker = PFObject(className: "Character")
lukeSkywalker["name"] = "Luke Skywalker"
lukeSkywalker["birthYear"] = "19BBY"
lukeSkywalker["homeworld"] = tatooine
lukeSkywalker.saveInBackground()

iOS | Documentation

PFObject *gameScore = [PFObject objectWithClassName:@"GameScore"];
gameScore[@"score"] = @1337;
gameScore[@"playerName"] = @"Sean Plott";
gameScore[@"cheatMode"] = @NO;
[gameScore saveInBackgroundWithBlock:^(BOOL succeeded, NSError *error) {
if (succeeded) {
// The object has been saved.
} else {
// There was a problem, check error.description
}
}];

Objective-C | Documentation

// Create Tatooine

ParseObject tatooine = new ParseObject("Planet");
tatooine.put("name", "Tatooine");
tatooine.put("population", 200000);
tatooine.save();

// Create Luke Skywalker

ParseObject lukeSkywalker = new ParseObject("Character");
lukeSkywalker.put("name", "Luke Skywalker");
lukeSkywalker.put("birthYear", "19BBY");
lukeSkywalker.put("homeworld", tatooine);
lukeSkywalker.saveInBackground();

Android | Documentation

// Create Tatooine

final tatooine = ParseObject('Planet')
..set('name', 'Tatooine')
..set('population', 200000);
await tatooine.save();

// Create Luke Skywalker

final lukeSkywalker = ParseObject('Character')
..set('name', 'Luke Skywalker')
..set('birthYear', '19BBY')
..set('homeworld', tatooine);
await lukeSkywalker.save();

// Create Tatooine

ParseObject tatooine = new ParseObject("Planet");
tatooine["name"] = "Tatooine";
tatooine["population"] = 200000;
await tatooine.SaveAsync();

// Create Luke Skywalker

ParseObject lukeSkywalker = new ParseObject("Character");
lukeSkywalker["name"] = "Luke Skywalker";
lukeSkywalker["birthYear"] = "19BBY";
lukeSkywalker["homeworld"] = tatooine;
await lukeSkywalker.SaveAsync();

query {
characters(where: {
    homeworld: {
      have: {
        population: {
          greaterThan: 100000
        }
      }
    }
}) {
    edges {
      node {
        name
        birthYear
        homeworld {
          name
          population
        }
      }
    }
}
}

GraphQL | Documentation

// Create Subquery

const Planet = Parse.Object.extend('Planet');
const planetQuery = new Parse.Query(Planet);
planetQuery.greaterThan('population', 100000);

// Create Main Query

const Character = Parse.Object.extend('Character');
const characterQuery = new Parse.Query(Character);
characterQuery.matchesQuery('homeworld', planetQuery);
characterQuery.include('homeworld');

const characters = await characterQuery.find();

Javascript | Documentation

// Create Subquery

let planetQuery = PFQuery(className: "Planet")
planetQuery.whereKey("population", greaterThan: 100000)

// Create Main Query

let characterQuery = PFQuery(className: "Character")
characterQuery.whereKey("homeworld", matchesQuery: planetQuery)
characterQuery.includeKey("homeworld")

let characters = try! characterQuery.findObjects()

iOS | Documentation

PFQuery *query = [PFQuery queryWithClassName:@"GameScore"];
[query getObjectInBackgroundWithId:@"xWMyZ4YEGZ" block:^(PFObject
*gameScore, NSError *error) {
   // Do something with the returned PFObject in the gameScore variable.
}];
// The InBackground methods are asynchronous, so any code after this will run
// immediately. Any code that depends on the query result should be moved
// inside the completion block above.

var query = PFQuery(className:"GameScore")
query.getObjectInBackgroundWithId("xWMyZEGZ") {
   (gameScore: PFObject?, error: NSError?) -> Void in
   if error == nil && gameScore != nil {
     print(gameScore)
   } else {
     print(error)
   }
}

Objective-C | Documentation

// Create Subquery

ParseQuery<ParseObject> planetQuery = ParseQuery.getQuery("Planet");
planetQuery.whereGreaterThan("population", 100000);

// Create Main Query

ParseQuery<ParseObject> characterQuery = ParseQuery.getQuery("Character");
characterQuery.whereMatchesQuery("homeworld", planetQuery);
characterQuery.include("homeworld");

List<ParseObject> characters = characterQuery.find();

Android | Documentation

// Create Subquery

final planetQuery = QueryBuilder<ParseObject>(ParseObject('Planet'))
..whereGreaterThan('population', 100000);

// Create Main Query

final characterQuery = QueryBuilder<ParseObject>(ParseObject('Character'))
..whereMatchesQuery('homeworld', planetQuery)
..includeObject(['homeworld']);

final characters = (await characterQuery.query()).results;

// Create Subquery

ParseQuery<ParseObject> planetQuery = ParseObject.GetQuery("Planet");
planetQuery.WhereGreaterThan("population", 100000);

// Create Main Query

ParseQuery<ParseObject> characterQuery = ParseObject.GetQuery("Character");
characterQuery.WhereMatchesQuery("homeworld", planetQuery);
characterQuery.Include("homeworld");

IEnumerable<ParseObject> characters = await characterQuery.FindAsync();

curl -X GET \
-H "X-Parse-Application-Id: YOUR_APPLICATION_ID" \
-H "X-Parse-REST-API-Key: YOUR_REST_API_KEY" \
-G \
--data-urlencode 'where={
"homeworld": {
    "$inQuery": {
      "className": "Planet",
      "where": {
        "population": {
          "$gt": 100000
        }
      }
    }
}
}' \
--data-urlencode 'include=homeworld' \
https://parseapi.back4app.com/classes/Character

Parse.User.logIn(infoUser.usernameLogin, infoUser.passwordLogin, {
success: function(user) {
    console.log(user);
   },
     }else{
     error: function(user, error) {
     console.log("Error: " + error + "\nUser info: " + user);
   }
});

Javascript | Documentation

PFUser.logInWithUsername(inBackground: signInUsernameField.text!, password: signInPasswordField.text!) { (user, error) in

   UIViewController.removeSpinner(spinner: sv)
   if user != nil {
     self.loadHomeScreen()
   }else{
     if let descrip = error?.localizedDescription{
    ;   self.displayErrorMessage(message: (descrip))
     }
   }
}

iOS | Documentation

PFUser *user = [PFUser user];
   user.username = signUpUserNameTextField.text;
   user.password = signUpPasswordTextField.text;
   [activityIndicatorView startAnimating];
   [user signUpInBackgroundWithBlock:^(BOOL succeeded, NSError *error) {
     [self->activityIndicatorView stopAnimating];
     if (!error) {
       [self goToMainPage];{
     } else {
       [self displayMessageToUser:error.localizedDescription];
     }
   }];
}

Objective-C | Documentation

   public void done(ParseUser parseUser, ParseException e) {
     if (parseUser != null) {
       alertDisplayer("Sucessful Login","Welcome back" + + "!");
     } else {
       ParseUser.logOut();
       Toast.makeText(LoginActivity.this, e.getMessage(), Toast.LENGTH_LONG).show();
     }
   } });

Android | Documentation

try{
   await ParseUser.LogInAsync("myname", "mypass");

   // Login was successfull.
}
catch (Exception e){
   // The login failed. Check the error to see why.
}

Parse.Push.send({
channels: [ "Newsletter", "contactForm" ],
   data: {
     alert: "We have new promotions in our Curtains section."
   }
}, {
   success: function() {
     // Push was successful
   },
   error: function(error) {
     // Handle error
   }
});

Javascript | Documentation

PFCloud.callFunctionInBackground("averageRatings", withParameters: ["value":"$15.99"]) {
   (response: AnyObject?, error: NSError?) -> Void in
   let ratings = response as? Float
   // return Products
}

iOS | Documentation

PFPush *push = [[PFPush alloc] init];

// Be sure to use the plural 'setChannels'.
[push setChannels:channels];
[push setMessage:@"We have new promotions in our Curtains section."];
[push sendPushInBackground];

Objective-C | Documentation

channels.add("Newsletter");
channels.add("contactForm");
ParsePush push = new ParsePush();
push.setChannels(channels); // Notice we use setChannels not setChannel
push.setMessage("We have new promotions in our Curtains section.");
push.sendInBackground();

Android | Documentation

var push = new ParsePush();var push = new ParsePush();

{ "value", "$15.99" }
};
'ParseCloud.CallFunctionAsync>("getPrice", params).ContinueWith(t => {
push.Alert = "We have new promotions in our Curtains section.";

query {
planetsStats {
averagePopulation
averageCharacters
}
}

GraphQL | Documentation

const result = await Parse.Cloud.run('getPlanetsStats');
const { averagePopulation, averageCharacters } = result;

Javascript | Documentation

let result = try! PFCloud.callFunction("getPlanetsStats", withParameters: nil) as! [String: Float]
let averagePopulation = result["averagePopulation"]
let averageCharacters = result["averageCharacters"]

iOS | Documentation

   withParameters:@{@"movie": @"The Matrix"}
   block:^(NSNumber *ratings, NSError *error) {
   if (!error) {
     // ratings is 4.5
   }
}];

Objective-C | Documentation

HashMap<String, Object> params = new HashMap<String, Object>();
HashMap<String, Number> result = ParseCloud.callFunction("getPlanetsStats", params);
Number averagePopulation = result.get("averagePopulation");
Number averageCharacters = result.get("averageCharacters");

Android | Documentation

final cloudFunction = ParseCloudFunction('getPlanetsStats');
final result = (await cloudFunction.execute()).result;
final averagePopulation = result['averagePopulation'];
final averageCharacters = result['averageCharacters'];

IDictionary<string, object> functionParams = new Dictionary<string, object>();

IDictionary<string, float> result = await ParseCloud.CallFunctionAsync<IDictionary<string, float>>("getPlanetsStats", functionParams);

float averagePopulation = result["averagePopulation"];
float averageCharacters = result["averageCharacters"];

curl -X POST \
-H "X-Parse-Application-Id: YOUR_APPLICATION_ID" \
-H "X-Parse-REST-API-Key: YOUR_REST_API_KEY" \
-H "Content-Type: application/json" \
https://parseapi.back4app.com/functions/getPlanetsStats

$ratings = ParseCloud::run("averageRatings", ["movie" => "The Matrix"]);
// $ratings is 4.5

Command Line Interface

// main.js

Parse.Cloud.define('getPlanetsStats', async () => {
// Total Population

const Planet = Parse.Object.extend('Planet');
const planetQuery = new Parse.Query(Planet);
planetQuery.select('population');
const planets = await planetQuery.find();

let totalPopulation = 0;
for (let i = 0; i < planets.length; i++) {
    totalPopulation += planets[i].get('population');
}

// Total Characters

const Character = Parse.Object.extend('Character');
const characterQuery = new Parse.Query(Character);
const totalCharacters = await characterQuery.count();

return {
    averagePopulation: totalPopulation / planets.length,
    averageCharacters: totalCharacters / planets.length
}
});

˜
˜
˜
:wq
$ b4a deploy

Cloud Functions | Documentation

Command Line Interface

# schema.graphql

type PlanetsStats {
averagePopulation: Float!
averageCharacters: Float!
}

extend type Query {
planetsStats: PlanetsStats! @resolve(to: "getPlanetsStats")
}

˜
˜
˜
:wq
$ b4a deploy

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Make apps faster without managing infrastructure. Build relational data models in minutes, and perform complex relational queries in a truly serverless platform.

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Relational Datastore to build Modern Apps

Easy to integrate on your mobile and web app!

Powering development efficiency for thousands of companies worldwide

Joren Winge

Omer Gurel

Nicolas Boulch

Simon Berry

David Liu

Create apps at a global scale

Bring your Parse App to Back4App

Predictable Pricing

Predictable Pricing

Custom Plans

Focus on creating engaging apps, and let everything else with us!

Sign up! It's FREE

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Internal Server Error!

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Relational Datastore to build Modern Apps

Sign up and build your App in minutes

Easy to integrate on your mobile and web app!

Powering development efficiency for thousands of companies worldwide

Joren Winge

Omer Gurel

Nicolas Boulch

Simon Berry

David Liu

Create apps at a global scale

Bring your Parse App to Back4App

Predictable Pricing

Predictable Pricing

Custom Plans

Focus on creating engaging apps, and let everything else with us!

Sign up! It's FREE