flutter-klippa-identity-verification-sdk

Dart version Build Status

SDK usage

Please be aware you need to have a Klippa Identity Verification OCR API key to use this SDK. If you would like to use our Identity Verification SDK, please contact us here

Getting started

Android

Edit the file android/key.properties, if it doesn't exist yet, create it. Add the SDK credentials:

klippa.identity_verification.sdk.username={your-username}
klippa.identity_verification.sdk.password={your-password}

Replace the {your-username} and {your-password} values with the ones provided by Klippa.

iOS

Edit the file ios/Podfile, add the Klippa CocoaPod:

// Add this to the top of your file:
// Edit the platform to a minimum of 13.0, our SDK doesn't support earlier iOS versions.
platform :ios, '13.0'
ENV['KLIPPA_IDENTITY_VERIFICATION_SDK_USERNAME'] = '{your-username}'
ENV['KLIPPA_IDENTITY_VERIFICATION_SDK_PASSWORD'] = '{your-password}'

// Edit the Runner config to add the pod:
target 'Runner' do
  // ... other instructions

  // Add this below flutter_install_all_ios_pods
  if "#{ENV['KLIPPA_IDENTITY_VERIFICATION_SDK_URL']}" == ""
    ENV['KLIPPA_IDENTITY_VERIFICATION_SDK_URL'] = File.read(File.join(File.dirname(File.realpath(__FILE__)), '.symlinks', 'plugins', 'klippa_identity_verification_sdk', 'ios', 'sdk_repo')).strip
  end

  if "#{ENV['KLIPPA_IDENTITY_VERIFICATION_SDK_VERSION']}" == ""
    ENV['KLIPPA_IDENTITY_VERIFICATION_SDK_VERSION'] = File.read(File.join(File.dirname(File.realpath(__FILE__)), '.symlinks', 'plugins', 'klippa_identity_verification_sdk', 'ios', 'sdk_version')).strip
  end

  pod 'Klippa-Identity-Verification', podspec: "#{ENV['KLIPPA_IDENTITY_VERIFICATION_SDK_URL']}/#{ENV['KLIPPA_IDENTITY_VERIFICATION_SDK_USERNAME']}/#{ENV['KLIPPA_IDENTITY_VERIFICATION_SDK_PASSWORD']}/KlippaIdentityVerification/#{ENV['KLIPPA_IDENTITY_VERIFICATION_SDK_VERSION']}.podspec"
end

Replace the {your-username} and {your-password} values with the ones provided by Klippa.

Edit the file ios/{project-name}/Info.plist and add the NSCameraUsageDescription value:

...
<key>NSCameraUsageDescription</key>
<string>Access to your camera is needed to photograph documents.</string>
<key>NSPhotoLibraryAddUsageDescription</key>
<string>Access to your photo library is used to save the images of documents.</string>
...

Flutter

Add klippa_identity_verification_sdk as a dependency in your pubspec.yaml file.

Usage

import 'package:klippa_identity_verification_sdk/klippa_identity_verification_sdk.dart';

var identityBuilder = IdentityBuilder();
try {
  // @todo: get a session token from the API through your backend here.
  var sessionResult = await KlippaIdentityVerificationSdk.startSession(identityBuilder, '{insert-session-token-here}');
} on PlatformException catch (e) {
  print('Failed to start session: ' + e.toString());
}

After returning from the SDK you can use the API to validate the session in your backend.

The reject reason object has a code and a message, the used codes are:

  • E_ACTIVITY_DOES_NOT_EXIST (Android only)
  • E_FAILED_TO_SHOW_SESSION (Android only)
  • E_MISSING_SESSION_TOKEN
  • E_CANCELED
  • E_UNKNOWN_ERROR
  • E_CONTACT_SUPPORT_PRESSED

How to use a specific version of the SDK?

Android

Edit the file android/build.gradle, add the following:

allprojects {
  // ... other definitions
  project.ext {
      klippaIdentityVerificationVersion = "{version}"
  }
}

Replace the {version} value with the version you want to use.

If you want to change the repository:

Edit the file android/key.properties, add the SDK repository URL:

klippa.identity_verification.sdk.url={repository-url}

Replace {repository-url} with the URL that you want to use.

iOS

Edit the file ios/Podfile, add the following line below the username/password if you want to change the version:

ENV['KLIPPA_IDENTITY_VERIFICATION_SDK_VERSION'] = '{version}'

Replace {version} with the version that you want to use.

If you want to change the repository:

Edit the file ios/Podfile, add the following line below the username/password if you want to change the URL:

ENV['KLIPPA_IDENTITY_VERIFICATION_SDK_URL'] = '{repository-url}'

Replace {repository-url} with the URL that you want to use.

How to change the setup of the SDK:

Debug

To display extra debug info, add the following to the builder:

identityBuilder.isDebug = true;

Enable Auto Capture

To configure if the camera should automatically take a photo if the conditions are right.

identityBuilder.enableAutoCapture = true;

Intro/Success screens

To configure whether to show intro/success screens, add the following to the builder:

identityBuilder.hasIntroScreen = true;
identityBuilder.hasSuccessScreen = true;

Retry Threshold

To configure how often a user can attempt a task before the contact support button is shown to the user.

identityBuilder.retryThreshold = 1;

Language

Add the following to the builder:

// We support English, Dutch, Spanish, German and French.
identityBuilder.language = KIVLanguage.Dutch;

When no language is given we try to detect the language of the device and use that if we support it.

Include & Exclude lists

You can edit the include list: The extracted data keys that will be shown to the user after document pictures are processed. Or the exclude list: The extracted data keys that will be hidden for the user after document pictures are processed.

identityBuilder.verifyIncludeList = [
     "DateOfBirth",
     "DateOfIssue",
     "DateOfExpiry",
     "DocumentNumber",
     "DocumentSubtype",
     "DocumentType",
     "Face",
     "Gender",
     "GivenNames",
     "Height",
     "IssuingCountry",
     "IssuingInstitution",
     "Nationality",
     "PersonalNumber",
     "PlaceOfBirth",
     "Residency",
     "Signature",
     "Surname"
];

identityBuilder.verifyExcludeList = [];

Validation Include & Exclude lists

You can edit the validation include list: the failed validations that are shown to the user Or the validation exclude list: the failed validations that are hidden from the user. For more information regarding validations check out the API documentation.

identityBuilder.validationIncludeList = [
    "DetectFace",
    "CompareFace",
    "DetectSignature",
    "CompareSignature",
    "CheckRequiredField",
    "MatchSidesFront",
    "MatchSidesBack",
    "FieldValidation",
    "MatchVizMrz",
    "MrzChecksum"
]

identityBuilder.validationExcludeList = []

How to change the colors of the SDK?

Android

Add or edit the file android/app/src/main/res/values/colors.xml, add the following:

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="kiv_text_color">#808080</color>
    <color name="kiv_background_color">#FFFFFF</color>
    <color name="kiv_button_success_color">#00CC00</color>
    <color name="kiv_button_error_color">#FF0000</color>
    <color name="kiv_button_other_color">#333333</color>
    <color name="kiv_progress_bar_background_color">#EBEFEF</color>
    <color name="kiv_progress_bar_foreground_color">#00CC00</color>
</resources>

You can also replace the fonts by adding the files:

  • android/app/src/main/res/font/kiv_font.ttf
  • android/app/src/main/res/font/kiv_font_bold.ttf

iOS

Use the following properties in the builder:

// Colors:
identityBuilder.colors.textColor = Color.fromARGB(255, 128, 128, 128);
identityBuilder.colors.backgroundColor = Color.fromARGB(255, 255, 255, 255);
identityBuilder.colors.buttonSuccessColor = Color.fromARGB(255, 0, 204, 0);
identityBuilder.colors.buttonErrorColor = Color.fromARGB(255, 255, 0, 0);
identityBuilder.colors.buttonOtherColor = Color.fromARGB(255, 51, 51, 51);
identityBuilder.colors.progressBarBackground = Color.fromARGB(255, 235, 239, 239);
identityBuilder.colors.progressBarForeground = Color.fromARGB(255, 0, 204, 0);

// Fonts:
identityBuilder.fonts.fontName = 'Avenir Next';
identityBuilder.fonts.boldFontName = 'Avenir Next';

Important iOS notes

Older iOS versions do not ship the Swift libraries. To make sure the SDK works on older iOS versions, you can configure the build to embed the Swift libraries using the build setting EMBEDDED_CONTENT_CONTAINS_SWIFT = YES.

We use XCFrameworks, you need CocoaPod version 1.9.0 or higher to be able to use it.

About Klippa

Klippa is a scale-up from Groningen, The Netherlands and was founded in 2015 by six Dutch IT specialists with the goal to digitize paper processes with modern technologies.

We help clients enhance the effectiveness of their organization by using machine learning and OCR. Since 2015 more than a 1000 happy clients have been served with a variety of the software solutions that Klippa offers. Our passion is to help our clients to digitize paper processes by using smart apps, accounts payable software and data extraction by using OCR.

License

The MIT License (MIT)

Libraries

klippa_identity_verification_sdk