Is_PupperCoin_Orbiting

Crowd-selling PupperCoin to Discover Interesting Facts on our best friends

Overview

Crowd-selling PupperCoin coded on Solidity to fund generic trailing project on pups. Two contracts are written and deployed on Remix.

• The ENVIRONMENT on Remix is set to INJECTED WEB3

• MetaMask is tuned in KOVAN Test Network.

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CrowdSale

Transaction on EtherScan for Puppercoin Contract Deployment

Crowdsale Contract Deployment on Remix

Step 1. Deploy PupperCoinsSale Deployer Contract

i) Enter the following information at DEPLOY:

NAME: PupperCoin
SYMBOL: PUP
WALLET: 0x5DBaBe19DD1fedba1B20047059DCd755D8221BF7
GOAL: 10000

ii) Click on transact button.

iii) Confirm on MetaMask pop-up window.

Step 2. Deploy PupperCoinsSale Contract

i) View addresses by clicking on blue buttons

• pupper_token_address
• token_address

ii) Scroll CONTRACT to PupperCoinSale

at pupper_token_address circled below:

Step 3. Deploy PupperCoins Contract

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PupperCoin

Transaction on EtherScan for Puppercoin buyTokens

Puppercoin Contract Deployment on Remix

at token_address

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Features

A. Buy Tokens under PupperCoinSale on Remix

Looks like it is a sucess!

Here is another buyTokens transaction for 3000 wei PupperCoin

B. Approve Spending PUP

Click on `approve` under PUPPERCOIN contract

C. Check Balance

Check balance by clicking on `balanceOf` under deployed `PupperCoinSale` Contract

D. Add Tokens

Add Tokens by entering wallet Address, symbol `PUP` and 18 for decimals

E. Transfer Tokens

Click on `transfer` under `PUPPERCOIN` function

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View Tokens on MyCrypto Wallet

Access wallet on MyCrypto via the PRIVATE KEY in Ganache.

Press Scan for Tokens button on the bottom right corner:

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The above processes can be done on Rinkeby and Ropsten Testnets by adjusting the network on MetaMask.

On Rinkeby

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More Love for Pups

For getting testcoins, both Kovan and Ropsten faucets could do the job!

Kovan Testcoins

Ropsten Testcoins

Tweet for Rinkeby Testcoins

Step 1: Go to Rinkeby Faucet

Step 2: Tweet the message with designated wallet address

Step 3: Copy link on posted message on Twitter

Step 4: Verify tweet

Step 5: Check balance on MetaMask

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Files

PupperCoin

CrowdSale

Kovan Transactions

Rinkeby Transactions

Images Folder

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References

• Columbia University Fintech Bootcamp Repository
• http://remix.ethereum.org/
• https://faucet.ropsten.be/
• https://kovan.etherscan.io/
• https://solidity.readthedocs.io/
• https://medium.com/coinmonks/create-token-contract-and-time-limited-crowdsale-contract-with-whitelisting-in-solidity-1eb979d206f6
• https://ethereum.stackexchange.com/questions/51757/basic-crowdsale-contract
• https://ethereum.stackexchange.com/questions/51757/basic-crowdsale-contract
• https://github.com/raineorshine/solidity-by-example
• https://github.com/bkrem/awesome-solidity
• https://solidity.readthedocs.io/en/v0.5.3/solidity-by-example.html#simple-open-auction