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# Miscellaneous | ||
*.class | ||
*.log | ||
*.pyc | ||
*.swp | ||
.DS_Store | ||
.atom/ | ||
.buildlog/ | ||
.history | ||
.svn/ | ||
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# IntelliJ related | ||
*.iml | ||
*.ipr | ||
*.iws | ||
.idea/ | ||
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# The .vscode folder contains launch configuration and tasks you configure in | ||
# VS Code which you may wish to be included in version control, so this line | ||
# is commented out by default. | ||
#.vscode/ | ||
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# Flutter/Dart/Pub related | ||
**/doc/api/ | ||
**/ios/Flutter/.last_build_id | ||
.dart_tool/ | ||
.flutter-plugins | ||
.flutter-plugins-dependencies | ||
.packages | ||
.pub-cache/ | ||
.pub/ | ||
/build/ | ||
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# Web related | ||
lib/generated_plugin_registrant.dart | ||
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# Symbolication related | ||
app.*.symbols | ||
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# Obfuscation related | ||
app.*.map.json | ||
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# Android Studio will place build artifacts here | ||
/android/app/debug | ||
/android/app/profile | ||
/android/app/release |
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# This file tracks properties of this Flutter project. | ||
# Used by Flutter tool to assess capabilities and perform upgrades etc. | ||
# | ||
# This file should be version controlled and should not be manually edited. | ||
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version: | ||
revision: 225a43d941ddd1753765fec3682011e9ddffb11d | ||
channel: dev | ||
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project_type: app |
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MIT License | ||
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Copyright (c) 2021 Saurabh Waghmare | ||
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Permission is hereby granted, free of charge, to any person obtaining a copy | ||
of this software and associated documentation files (the "Software"), to deal | ||
in the Software without restriction, including without limitation the rights | ||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
copies of the Software, and to permit persons to whom the Software is | ||
furnished to do so, subject to the following conditions: | ||
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The above copyright notice and this permission notice shall be included in all | ||
copies or substantial portions of the Software. | ||
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
SOFTWARE. |
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# Blockchain-Based-Property-Registration | ||
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<a href="LICENSE"><img src="https://img.shields.io/static/v1?label=license&message=MIT&color=green"></a> | ||
<img src="https://img.shields.io/badge/Ethereum-20232A?style=for-the-badge&logo=ethereum&logoColor=white"> | ||
<img src="https://img.shields.io/badge/Flutter-%2302569B.svg?style=for-the-badge&logo=Flutter&logoColor=white"> | ||
## Land Registration using Blockchain | ||
## Problem it Solves: | ||
1. The elimination of middlemen: The elimination of middlemen or brokers makes the process of land registration less expensive. Brokers who try to defraud uninformed people will be unable to do so any longer. Brokers frequently take a long time to finish procedures, thus our project will help people save time. | ||
3. A distributed tamper-proof ledger that prohibits ownership fraud. | ||
4. IPFS is used to store important property registration papers in a secure manner. | ||
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## Technology Stack: | ||
1. Ethereum Blockchain | ||
2. Polygon/Matic | ||
3. Web3Dart | ||
4. IPFS | ||
5. Flutter | ||
6. Metamask | ||
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## Demo | ||
Our Dapp is demonstrated in this video [here](https://youtu.be/0Coz_ivOaHs) | ||
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## Run Application on deployed website | ||
Check out the deployed website [here](https://landregistry.live/) | ||
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https://landregistry.live/ | ||
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This is for demonstration purposes only. With this key, you can log in as Land Inspector: | ||
<pre><b>6b86cddfedbec68ed2a1c7e14b993840a0848595ba5787aec9e8a38b18f0d96a</b></pre> | ||
For user: <pre><b>3ed4aff1a8ff8e28df3cd307112f9166886edcc85a27136908e3b1687b111f89</b></pre>\ | ||
You can also use your own Ethereum wallet key as a user. | ||
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#### Check new Smart contract At Polygon Testnet: [here](https://mumbai.polygonscan.com/address/0xbc6d9e15255533C19f1589A7e9fbB60440a539e0) | ||
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#### Check Smart contract At (discontinued) Ropsten Ethereum Testnet: [here](https://ropsten.etherscan.io/address/0x702058ba021cd4e4f847b40f32b58aa5be3a4661) | ||
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## To Run Application Locally | ||
1. Clone the github repository and cd to the folder | ||
2. Install the flutter 3.0.2, nodejs | ||
3. Install ganache and truffle as shown below: | ||
``` | ||
npm install -g truffle | ||
``` | ||
4. Open Ganache and keep it running in the Background | ||
5. Install the Metamask chrome extension, choose the local network and import the accounts | ||
6. Compile and run our migrations from the command line as shown below: | ||
``` | ||
truffle compile | ||
truffle migrate | ||
``` | ||
6 .Copy contract address as seen in the image below and paste in variable `contractAddress` located in the file `./lib/constant/constant.dart` | ||
<pre> | ||
2_deploy_migration.js | ||
===================== | ||
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Replacing 'Land' | ||
---------------- | ||
> transaction hash: 0x427b2b402f767ac6a90334ab3c687b086b274de747fe10d6e194743b15057d78 | ||
> Blocks: 0 Seconds: 0 | ||
<b>>contract address: 0xed690C24C60A48F8A9819c9A15AD75B70CFBEa5a</b> | ||
> block number: 3 | ||
> block timestamp: 1650602828 | ||
> account: 0x33e94e4619f0AecDf81e9676Eb82c109FBa53356 | ||
> balance: 99.9154895 | ||
> gas used: 3996227 | ||
> gas price: 20 gwei | ||
> value sent: 0 ETH | ||
> total cost: 0.07992454 ETH | ||
</pre> | ||
7. In `constant.dart` file, change the value of the variable `chainId` to `'1337'` and change the value of the variable `rpcUrl` to `"http://127.0.0.1:7545"` | ||
8. Run the flutter web app | ||
``` | ||
flutter pub get | ||
flutter run -d web-server --web-port 5555 | ||
``` | ||
9. Open the browser and the dapp will be running in http://localhost:5555/ | ||
10. Create mapbox api key from https://www.mapbox.com/ and Replace it with `mapBoxApiKey`in `constant.dart` file | ||
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## Project Flowchart | ||
<img src="screenshots/flowchart.png" height="450"> | ||
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## Screenshots | ||
Home Page | Wallet connect/Login | ||
:---------------------------------: | :------------------------------: | ||
<img src="screenshots/Screenshot1.png" height="225"> |<img src="screenshots/Screenshot7.png" height="225"> | ||
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Contract Owner Dashboard | User Registration | ||
:---------------------------------: | :------------------------------: | ||
<img src="screenshots/Screenshot10.png" height="225"> |<img src="screenshots/Screenshot12.png" height="225"> | ||
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Land Inspector Dashboard | User Verification | ||
:---------------------------------: | :------------------------------: | ||
<img src="screenshots/Screenshot11.png" height="225"> |<img src="screenshots/Screenshot5.png" height="225"> | ||
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User Dashboard | Adding land on Map | ||
:---------------------------------: | :------------------------------: | ||
<img src="screenshots/Screenshot2.png" height="225"> |<img src="screenshots/Screenshot8.png" height="225"> | ||
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Land Gallery | Land Details | ||
:---------------------------------: | :------------------------------: | ||
<img src="screenshots/Screenshot3.png" height="225"> |<img src="screenshots/Screenshot9.png" height="225"> | ||
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Received Request | Make Payment | ||
:---------------------------------: | :------------------------------: | ||
<img src="screenshots/Screenshot6.png" height="225"> |<img src="screenshots/Screenshot4.png" height="225"> | ||
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Transfer ownership,Seller,buyer photo capture | Witness info,photo capture,transfer ownership | ||
:---------------------------------: | :------------------------------: | ||
<img src="screenshots/Screenshot14.png" height="225"> |<img src="screenshots/Screenshot13.png" height="225"> |
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# This file configures the analyzer, which statically analyzes Dart code to | ||
# check for errors, warnings, and lints. | ||
# | ||
# The issues identified by the analyzer are surfaced in the UI of Dart-enabled | ||
# IDEs (https://dart.dev/tools#ides-and-editors). The analyzer can also be | ||
# invoked from the command line by running `flutter analyze`. | ||
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# The following line activates a set of recommended lints for Flutter apps, | ||
# packages, and plugins designed to encourage good coding practices. | ||
include: package:flutter_lints/flutter.yaml | ||
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linter: | ||
# The lint rules applied to this project can be customized in the | ||
# section below to disable rules from the `package:flutter_lints/flutter.yaml` | ||
# included above or to enable additional rules. A list of all available lints | ||
# and their documentation is published at | ||
# https://dart-lang.github.io/linter/lints/index.html. | ||
# | ||
# Instead of disabling a lint rule for the entire project in the | ||
# section below, it can also be suppressed for a single line of code | ||
# or a specific dart file by using the `// ignore: name_of_lint` and | ||
# `// ignore_for_file: name_of_lint` syntax on the line or in the file | ||
# producing the lint. | ||
rules: | ||
# avoid_print: false # Uncomment to disable the `avoid_print` rule | ||
# prefer_single_quotes: true # Uncomment to enable the `prefer_single_quotes` rule | ||
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# Additional information about this file can be found at | ||
# https://dart.dev/guides/language/analysis-options |
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gradle-wrapper.jar | ||
/.gradle | ||
/captures/ | ||
/gradlew | ||
/gradlew.bat | ||
/local.properties | ||
GeneratedPluginRegistrant.java | ||
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# Remember to never publicly share your keystore. | ||
# See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app | ||
key.properties | ||
**/*.keystore | ||
**/*.jks |
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def localProperties = new Properties() | ||
def localPropertiesFile = rootProject.file('local.properties') | ||
if (localPropertiesFile.exists()) { | ||
localPropertiesFile.withReader('UTF-8') { reader -> | ||
localProperties.load(reader) | ||
} | ||
} | ||
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def flutterRoot = localProperties.getProperty('flutter.sdk') | ||
if (flutterRoot == null) { | ||
throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.") | ||
} | ||
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def flutterVersionCode = localProperties.getProperty('flutter.versionCode') | ||
if (flutterVersionCode == null) { | ||
flutterVersionCode = '1' | ||
} | ||
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def flutterVersionName = localProperties.getProperty('flutter.versionName') | ||
if (flutterVersionName == null) { | ||
flutterVersionName = '1.0' | ||
} | ||
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apply plugin: 'com.android.application' | ||
apply plugin: 'kotlin-android' | ||
apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle" | ||
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android { | ||
compileSdkVersion 30 | ||
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compileOptions { | ||
sourceCompatibility JavaVersion.VERSION_1_8 | ||
targetCompatibility JavaVersion.VERSION_1_8 | ||
} | ||
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kotlinOptions { | ||
jvmTarget = '1.8' | ||
} | ||
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sourceSets { | ||
main.java.srcDirs += 'src/main/kotlin' | ||
} | ||
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defaultConfig { | ||
// TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html). | ||
applicationId "com.example.land_registration" | ||
minSdkVersion 16 | ||
targetSdkVersion 30 | ||
versionCode flutterVersionCode.toInteger() | ||
versionName flutterVersionName | ||
} | ||
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buildTypes { | ||
release { | ||
// TODO: Add your own signing config for the release build. | ||
// Signing with the debug keys for now, so `flutter run --release` works. | ||
signingConfig signingConfigs.debug | ||
} | ||
} | ||
} | ||
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flutter { | ||
source '../..' | ||
} | ||
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dependencies { | ||
implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version" | ||
} |
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<manifest xmlns:android="http://schemas.android.com/apk/res/android" | ||
package="com.example.land_registration"> | ||
<!-- Flutter needs it to communicate with the running application | ||
to allow setting breakpoints, to provide hot reload, etc. | ||
--> | ||
<uses-permission android:name="android.permission.INTERNET"/> | ||
</manifest> |
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<manifest xmlns:android="http://schemas.android.com/apk/res/android" | ||
package="com.example.land_registration"> | ||
<application | ||
android:label="land_registration" | ||
android:icon="@mipmap/ic_launcher"> | ||
<activity | ||
android:name=".MainActivity" | ||
android:launchMode="singleTop" | ||
android:theme="@style/LaunchTheme" | ||
android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode" | ||
android:hardwareAccelerated="true" | ||
android:windowSoftInputMode="adjustResize"> | ||
<!-- Specifies an Android theme to apply to this Activity as soon as | ||
the Android process has started. This theme is visible to the user | ||
while the Flutter UI initializes. After that, this theme continues | ||
to determine the Window background behind the Flutter UI. --> | ||
<meta-data | ||
android:name="io.flutter.embedding.android.NormalTheme" | ||
android:resource="@style/NormalTheme" | ||
/> | ||
<intent-filter> | ||
<action android:name="android.intent.action.MAIN"/> | ||
<category android:name="android.intent.category.LAUNCHER"/> | ||
</intent-filter> | ||
</activity> | ||
<!-- Don't delete the meta-data below. | ||
This is used by the Flutter tool to generate GeneratedPluginRegistrant.java --> | ||
<meta-data | ||
android:name="flutterEmbedding" | ||
android:value="2" /> | ||
</application> | ||
</manifest> |
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android/app/src/main/kotlin/com/example/land_registration/MainActivity.kt
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package com.example.land_registration | ||
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import io.flutter.embedding.android.FlutterActivity | ||
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class MainActivity: FlutterActivity() { | ||
} |
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android/app/src/main/res/drawable-v21/launch_background.xml
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<?xml version="1.0" encoding="utf-8"?> | ||
<!-- Modify this file to customize your launch splash screen --> | ||
<layer-list xmlns:android="http://schemas.android.com/apk/res/android"> | ||
<item android:drawable="?android:colorBackground" /> | ||
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<!-- You can insert your own image assets here --> | ||
<!-- <item> | ||
<bitmap | ||
android:gravity="center" | ||
android:src="@mipmap/launch_image" /> | ||
</item> --> | ||
</layer-list> |
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<?xml version="1.0" encoding="utf-8"?> | ||
<!-- Modify this file to customize your launch splash screen --> | ||
<layer-list xmlns:android="http://schemas.android.com/apk/res/android"> | ||
<item android:drawable="@android:color/white" /> | ||
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<!-- You can insert your own image assets here --> | ||
<!-- <item> | ||
<bitmap | ||
android:gravity="center" | ||
android:src="@mipmap/launch_image" /> | ||
</item> --> | ||
</layer-list> |
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<?xml version="1.0" encoding="utf-8"?> | ||
<resources> | ||
<!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is on --> | ||
<style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar"> | ||
<!-- Show a splash screen on the activity. Automatically removed when | ||
Flutter draws its first frame --> | ||
<item name="android:windowBackground">@drawable/launch_background</item> | ||
</style> | ||
<!-- Theme applied to the Android Window as soon as the process has started. | ||
This theme determines the color of the Android Window while your | ||
Flutter UI initializes, as well as behind your Flutter UI while its | ||
running. | ||
This Theme is only used starting with V2 of Flutter's Android embedding. --> | ||
<style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar"> | ||
<item name="android:windowBackground">?android:colorBackground</item> | ||
</style> | ||
</resources> |
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