DiHola Shaking API for React Native

DiHola Shaking API makes it easy to build fast and reliable ways to communicate between devices, just by shaking them. We provide such a secure and flexible protocol that this technology can be applied in any form of data exchange: Payment processing, file sharing, social networking, verification processes, etc.

Index

1. Installation
2. Usage
3. Methods
4. Error Codes

Installation

$ npm install react-native-dihola-shaking --save

Mostly automatic installation

$ react-native link react-native-dihola-shaking

Note: Manual installation step 4 for both Android and iOS is required.

Manual installation

iOS

1. In XCode, in the project navigator, right click Libraries ➜ Add Files to [your project's name]
2. Go to node_modules ➜ react-native-dihola-shaking and add RNDiHolaShaking.xcodeproj
3. In XCode, in the project navigator, select your project. Add libRNDiHolaShaking.a to your project's Build Phases ➜ Link Binary With Libraries
4. Add NSLocationWhenInUseUsageDescription to Info.plist
5. Run your project (Cmd+R)

Android

1. Open up android/app/src/main/java/[...]/MainActivity.java

• Add import com.diholapp.RNDiHolaShakingPackage; to the imports at the top of the file
• Add new RNDiHolaShakingPackage() to the list returned by the getPackages() method

2. Append the following lines to android/settings.gradle:

   include ':react-native-dihola-shaking'
   project(':react-native-dihola-shaking').projectDir = new File(rootProject.projectDir, 	'../node_modules/react-native-dihola-shaking/android')
   

3. Insert the following lines inside the dependencies block in android/app/build.gradle:

     compile project(':react-native-dihola-shaking')
   

4. If you've defined project-wide properties (recommended) in your root build.gradle, this library will detect the presence of the following properties:

   buildscript {...}
   allprojects {...}
   
   /**
    + Project-wide Gradle configuration properties
    */
   ext {
       compileSdkVersion   = 25
       targetSdkVersion    = 25
       buildToolsVersion   = "25.0.2"
       supportLibVersion   = "25.0.1"
       googlePlayServicesVersion = "11.0.0"
   }
   

   If you do not have project-wide properties defined and have a different play-services version than the one included in this library, use the following instead. But play service version should be 11+ or the library won't work.

   ...
   dependencies {
       ...
       compile(project(':react-native-dihola-shaking')) {
           exclude group: 'com.google.android.gms', module: 'play-services-location'
       }
       compile 'com.google.android.gms:play-services-location:<insert your play service version here>'
   }
   

Usage

import { ShakingAPI } from 'react-native-dihola-shaking';

ShakingAPI.configure({

    API_KEY: "<API_KEY>",
    user: "<USER_ID>",
    
    onShaking: () => {
      console.log("Shaking event detected");
    },
    
    onSuccess: (result) => {
      (result.length > 0)
        ? console.log("You connected with: " + result)
        : console.log("Couldn't find anyone...");
    },
    
    onError: (error) => {
      console.log(error);
    }
    
}).start();

Here you can find an example.

Methods

Summary

• configure
• start
• stop
• simulate
• setSensibility
• setDistanceFilter
• setTimingFilter
• setKeepSearching
• setLocation

Details

configure()

ShakingAPI.configure(options);

• options:

  | Name | Type | Default | Required | Description | | -- | -- | -- | -- | -- | | API_KEY | string | -- | yes | Get one at www.diholapp.com | | user | string | -- | yes |User identifier | | lat | number | Device current value | no | Latitude coordinates | lng | number | Device current value | no | Longitude coordinates | sensibility | number | 25 | no | Shaking sensibility | distanceFilter | number | 100 | no | Maximum distance (in meters) between two devices to be eligible for pairing. | timingFilter | number | 2000 | no | Maximum time difference (in milliseconds) between two shaking events to be eligible for pairing. | keepSearching | boolean | false | no | A positive value would allow to keep searching even though if a user has been found. This could allow to pair with multiple devices. The response time will be affected by the timingFilter value. | vibrate | boolean | true | no | Vibrate on shaking. | onShaking | function | -- | no | Invoked when the shaking event is detected | onSuccess | function | -- | yes | Invoked with a list of paired users | onError | function | -- | yes | Invoked whenever an error is encountered

---

start()

ShakingAPI.start();

Starts listening to shaking events.

---

stop()

ShakingAPI.stop();

Stops listening to shaking events.

---

simulate()

ShakingAPI.simulate();

Simulates the shaking event.

---

setSensibility()

ShakingAPI.setSensibility(sensibility);

Sets the sensibility for the shaking event to be triggered.

Parameters:

Name	Type	Default
sensibility	number	25

---

setDistanceFilter()

ShakingAPI.setDistanceFilter(distanceFilter);

Sets the maximum distance (in meters) between two devices to be eligible for pairing.

Parameters:

Name	Type	Default	Note
distanceFilter	number	100	GPS margin error must be taken into account

---

setTimingFilter()

ShakingAPI.setTimingFilter(timingFilter);

Sets the maximum time difference (in milliseconds) between two shaking events to be eligible for pairing.

Parameters:

Name	Type	Default	Note
timingFilter	number	2000	Value between 100 and 10000

---

setKeepSearching()

ShakingAPI.setKeepSearching(keepSearching);

A positive value would allow to keep searching even though if a user has been found. This could allow to pair with multiple devices. The response time will be affected by the timingFilter value.

Parameters:

Name	Type	Default
keepSearching	boolean	false

---

setLocation()

ShakingAPI.setLocation(latitude, longitude);

Setting the location manually will disable using the device location.

Parameters:

Name	Type	Default
latitude	number	Device current value
longitude	number	Device current value

Error Codes

Name	Description
LOCATION_PERMISSION_ERROR	Location permission has not been accepted
LOCATION_DISABLED	Location is disabled
SENSOR_ERROR	The sensor devices are not available
AUTHENTICATION_ERROR	API key invalid
API_KEY_EXPIRED	API key expired
SERVER_ERROR	Server is not available

Example:

import { ShakingAPI, ShakingCodes } from 'react-native-dihola-shaking';

ShakingAPI.configure({

  ...
      
  onError: (error) => {

    switch(error){
      case ShakingCodes.LOCATION_PERMISSION_ERROR:
        // Do something
        break;
      case ShakingCodes.LOCATION_DISABLED:
        // Do something
        break;
      case ShakingCodes.AUTHENTICATION_ERROR:
        // Do something
        break;
      case ShakingCodes.API_KEY_EXPIRED:
        // Do something
        break;
      case ShakingCodes.SERVER_ERROR:
        // Do something
        break;
      case ShakingCodes.SENSOR_ERROR:
        // Do something
        break;
    }

  }
      
});

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.