chitimalli/dapp-examples

harmony-sdk-examples

Install

yarn install

Test with Harmony node

Run harmony's local testnet first

1. Get harmony's node using this branch: demo branch
2. run ./test/debug.sh

Run dApp(WebApp) examples

1. go to project root, build all and start using

yarn start

NOTE: Building require a few minutes, please hold on

When building is over you should able to can see:

Successfully compiled 13 files with Babel.
❌  Server-side HMR Not Supported.
express http is listening on 3000

2. open http://localhost:3000 to access the simple admin portal

   • on the left menu, select contracts
   • you can see lottery in a row, click detail, then deploy button
   • enter your private key, please use 27978f895b11d9c737e1ab1623fde722c04b4f9ccb4ab776bf15932cc72d7c66
   • choose network, if you had the harmony local testnet running, choose localHarmony, if you want to choose EthGanache, please run local ganache-cli first(see below)
   • enter amount or not simply don't enter anything, then click the big button
   • you can see the contract is send then confirmed then deployed
   • In Histories section, click the set contract link on the right, then confirm with clicking the ok button.
   • Now the lottery contract can be accessed by Lottery App

3. (Optional) Run ganache-cli

   open another console, go to project root

yarn run:ganache

4. open http://localhost:3000/lottery to access the Lottery App

• You should be able to see a big login button, click it
• enter 27978f895b11d9c737e1ab1623fde722c04b4f9ccb4ab776bf15932cc72d7c66, press ok
• Then you can deposit some token, click deposit and enter some value, 0.11 is the minimum.
• Then the contract will be called, and you money is deposited to it.
• Now click the home icon on the top right, you should logout to the front page.
• Try login with another key, you can choose either one of these:

        "371cb68abe6a6101ac88603fc847e0c013a834253acee5315884d2c4e387ebca",
        "3f8af52063c6648be37d4b33559f784feb16d8e5ffaccf082b3657ea35b05977",
        "df77927961152e6a080ac299e7af2135fc0fb02eb044d0d7bbb1e8c5ad523809", 
        "fcff43741ad2dd0b232efb159dc47736bbb16f11a79aaeec39b388d06f91116d",  
        "916d3d78b7f413452434e89f9c1f1d136995ef02d7dc8038e84cc9cef4a02b96", 
        "f5967bd87fd2b9dbf51855a2a75ef0a811c84953b3b300ffe90c430a5c856303",  
        "f02f7b3bb5aa03aa97f9e030020dd9ca306b209742fafe018104a3207a70a3c9", 
        "0436864cc15772448f88dd40554592ff6c91a6c1a389d965ad26ee143db1234d",  
        "dea956e530073ab23d9cae704f5d068482b1977c3173c9efd697c48a7fd3ce83", 
        "af539d4ace07a9f601a8d3a6ca6f914d5a9fabe09cfe7d62ebc2348fc95f03a4",  
        "7d24797eeba0cdac9bf943f0d82c4b18eb206108d6e1b7f610471594c0c94306", 
        "4fa2fecce1becfaf7e5fba5394caacb318333b04071462b5ca850ee5a406dcfe",  
        "3c8642f7188e05acc4467d9e2aa7fd539e82aa90a5497257cf0ecbb98ed3b88f", 
        "bf29f6a33b2c24a8b5182ef44cc35ce87534ef827c8dfbc1e6bb536aa52f8563"

• Now you should be able to deposit value to the contract, use the same flow as previous
• Logout and use 27978f895b11d9c737e1ab1623fde722c04b4f9ccb4ab776bf15932cc72d7c66 to login again
• You are the deployer of the contract, you can pick winner. click Pick Winner and press confirm on the pop-up.
• Now the contract is picking the winner, when the waiting is done, the winner will receive money

5. You can access http://localhost:3000/wallet as well, Note: The webwallet is not finished yet, please wait

Use command-line to test

Go to nodejs folder

There are 4 test scripts for testing

1. testWallet.js
2. testSign.js
3. testNode.js
4. testContract.js

open a console, use node test{xxx}.js to run the tests.

for example:

node testWallet.js

Test with other tools

Test with ganache-cli

** ganache-cli runs in js file **,

In this case, we use ganache and ethereum's setting to simulate the result

We don't need harmony's testnode running.

1. open nodejs
2. run node testGanache.js

Tutorial

1. What is it
2. Very Quick Start
3. Get Harmony ready
4. Compiling Job
5. Contract Deployment
6. Contract Call
7. Address to address transaction