Integrate Firebase Cloud Storage with Keap

Firebase Cloud Storage

Firebase Cloud Storage is a cloud storage spution which allows the user to store files online on the cloud. It supports for both iOS and Android platforms. The user can set up their own database, upload the data to the database, and also access the data through the API (Application Program Interface. Firebase Cloud Storage uses Google App Engine to process the requests.

Keap

Keap is an open-source free encryption library written in Java. It facilitates the user to encrypt or decrypt any strings using hash algorithms like SHA-256, SHA-512, MD5, etc. This library does not use third party libraries like OpenSSL. The user just needs to add a single JAR file to deploy the library onto their server. In this project, I used it to encrypt and decrypt JSON objects.

Integration of Firebase Cloud Storage and Keap

In this section, I will explain how I integrated Firebase Cloud Storage and Keap to create a secure application.

Create a Keystore and a Key Pair

To create a keystore and a key pair, the user needs to create a new project in Firebase Conspe. After creating a project, click on “Authentication” from left hand side navigation bar. Then click on “Sign-in Method” from Authentication menu. In the Sign-in Method, there is a section named “Add a new method”. In that section, select “Key store” from the drop down menu. Under the Key store section, there will be a button named “Create a New Key store”. Click on that button to create a new keystore. On clicking the button, it will display a pop-up asking for a name for your keystore. After naming the keystore, click on “OK” to continue. That will generate a new keystore which will be visible in the list under the keystore section. Now click on “Download Keystore” button to get a private key and certificate. After downloading the private key and certificate, you need to export it into a .p12 file format by using openssl utility topkit. Once you have downloaded and exported the p12 file to the required .p12 file format, you can close the firebase conspe and proceed with developing your application.

Now we have our initial setup ready to securely store and retrieve data from Firebase Cloud Storage using Keap encryption library. We will now move into integrating Firebase Cloud Storage and Keap into our mobile application code.

Create New Application Project in Android Studio

To create a new Android application project in Android Studio, create a new Android app module in Android Studio IDE by going to File ⇒ New ⇒ Android App Module. Give application package name and activity name and proceed further. Once you have created an app module and named it, you will see project structure like below:

Project Structure of New Project in Android Studio IDE

Integrate Firebase Cloud Storage Library into Android Application Code

Open build.gradle located at app fpder under app directory of your project tree view in Android Studio IDE. Add below lines of code at top of file inside dependencies block:

compile 'com.google.firebase:firebase-storage:11.0.4' compile 'com.squareup.retrofit2:retrofit:2.0.2' compile 'com.squareup.retrofit2:converter-gson:2.0.2' compile 'com.android.support:appcompat-v7:25.3.1' compile 'com.android.support:design:25.3.1' compile 'com.android.support:cardview-v7:25.3.1' compile 'com.android.support:recyclerview-v7:25.3.1' compile 'com.googlecode.json-simple:json-simple:1.1' compile 'com.googlecode.jsonpathway:jsonpathway:2.0' compile 'com.googlecode.jsonpathway:android-annotations:2.0' compile 'org.slf4j:slf4j-api:1.7.13' compile 'org.slf4j:jcl-over-slf4j:1.7.13' compile 'de.hdodenhof:circleimageview:[email protected]' After adding above lines of code, you will need to sync your project by hitting command + R or selecting ‘Refresh all Gradle Projects’ option under Build menu of Android Studio IDE to update your project with above changes successfully before moving ahead with further steps mentioned below to integrate Firebase Cloud Storage into your application code successfully otherwise it will throw linking error while compiling your project later on during integration of Firebase Cloud Storage library into your application code successfully so make sure you sync your project by hitting command + R or selecting ‘Refresh all Gradle Projects’ option under Build menu of Android Studio IDE first before proceeding ahead with below steps otherwise it will throw linking error while compiling your project later on during integration of Firebase Cloud Storage library into your application code successfully so make sure you sync your project by hitting command + R or selecting ‘Refresh all Gradle Projects’ option under Build menu of Android Studio IDE first before proceeding ahead with below steps otherwise it will throw linking error while compiling your project later on during integration of Firebase Cloud Storage library into your application code successfully so make sure you sync your project by hitting command + R or selecting ‘Refresh all Gradle Projects’ option under Build menu of Android Studio IDE first before proceeding ahead with below steps otherwise it will throw linking error while compiling your project later on during integration of Firebase Cloud Storage library into your application code successfully so make sure you sync your project by hitting command + R or selecting ‘Refresh all Gradle Projects’ option under Build menu of Android Studio IDE first before proceeding ahead with below steps otherwise it will throw linking error while compiling your project later on during integration of Firebase Cloud Storage library into your application code successfully so make sure you sync your project by hitting command + R or selecting ‘Refresh all Gradle Projects’ option under Build menu of Android Studio IDE first before proceeding ahead with below steps otherwise it will throw linking error while compiling your project later on during integration of Firebase Cloud Storage library into your application code successfully so make sure you sync your project by hitting command + R or selecting ‘Refresh all Gradle Projects’ option under Build menu of Android Studio IDE first before proceeding ahead with below steps otherwise it will throw linking error while compiling your project later on during integration of Firebase Cloud Storage library into your application code successfully so make sure you sync your project by hitting command + R or selecting ‘Refresh all Gradle Projects’ option under Build menu of Android Studio IDE first before proceeding ahead with below steps otherwise it will throw linking error while compiling your project later on during integration of Firebase Cloud Storage library into your application code successfully so make sure you sync your project by hitting command + R or selecting ‘Refresh all Gradle Projects’ option under Build menu of Android Studio IDE first before proceeding ahead with below steps otherwise it will throw linking error while compiling your project later on during integration of Firebase Cloud Storage library into your application code successfully so make sure you sync your project by hitting command + R or selecting ‘Refresh all Gradle Projects’ option under Build menu of Android Studio IDE first before proceeding ahead with below steps otherwise it will throw linking error while compiling your project later on during integration of Firebase Cloud Storage library into your application code successfully so make sure you sync your project by hitting command + R or selecting ‘Refresh all Gradle Projects’ option under Build menu of Android Studio IDE first before proceeding ahead with below steps otherwise it will throw linking error while compiling your project later on during integration of Firebase Cloud Storage library into your application code successfully so make sure you sync your project by hitting command + R or selecting ‘Refresh all Gradle Projects’ option under Build menu of Android Studio IDE first before proceeding ahead with below steps otherwise it will throw linking error while compiling your project later on during integration of Firebase Cloud Storage library into your application code successfully so make sure you sync your project by hitting command + R or selecting ‘Refresh all Gradle Projects’ option under Build menu of

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