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https://github.com/poboisvert/blockchainthegraphindexing
[Python/thegraph/web3/solidity] This project explore thegraph, ERC20 token, web3 & node front end
https://github.com/poboisvert/blockchainthegraphindexing
dapp react solidity solidity-contracts
Last synced: 27 days ago
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[Python/thegraph/web3/solidity] This project explore thegraph, ERC20 token, web3 & node front end
- Host: GitHub
- URL: https://github.com/poboisvert/blockchainthegraphindexing
- Owner: poboisvert
- Created: 2021-12-16T01:38:28.000Z (about 3 years ago)
- Default Branch: main
- Last Pushed: 2022-01-09T02:43:54.000Z (about 3 years ago)
- Last Synced: 2024-11-10T11:08:01.917Z (3 months ago)
- Topics: dapp, react, solidity, solidity-contracts
- Language: Shell
- Homepage: https://github.com/poboisvert/thegraphWeb3/raw/main/TheGraph_logo.png
- Size: 17.9 MB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: readme.md
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README
# Thegraph & Web3 - Payments Decentralization
Subgraph deployed: https://thegraph.com/hosted-service/subgraph/poboisvert/bhood
## Why this project
### Cell Phones in Africa: Communication Lifeline vs land line
- https://www.pewresearch.org/global/2015/04/15/cell-phones-in-africa-communication-lifeline/
- https://www.cnn.com/2012/10/04/tech/mobile/africa-mobile-opinion/index.html
## ABI.json
- **https://ethereum.stackexchange.com/questions/88199/how-to-get-events-from-transaction-receipt-in-web3js-solidity**
- https://rinkeby.etherscan.io/address/0x869498c3Bb540BF94861EaB9A82122BFB1EF0fe7#code
- https://ethereum.stackexchange.com/questions/71060/sending-the-bool-to-function-payable-in-another-contract
## Step 1: Contract Compilation & deploy
- truffle init (not nessary)
- sudo truffle compile (install required compiler will need sudo)
- truffle migrate
## Step 2: Setup thegraph
### Ganache CLI
Install the IDE app OR below
- npm install -g ganache-cli
- ganache-cli -h 0.0.0.0
# Will install the lastest compiler from the config
- Truffle contract address: FlipContract: 0x21be520c5c73Be7F24D136d838FA9B655fd0AEbD
- Console address: 0x21be520c5c73Be7F24D136d838FA9B655fd0AEbD
- Link Account: 0xF80D8E0939b7D6FE7a76632A830D6F4693BC684c
- Path: src/contracts/truffle_abis/FlipContract.json
### Step 3: Local thegraph
- https://github.com/graphprotocol/graph-node/blob/master/docker/docker-compose.yml
Read more: https://medium.com/blockrocket/dapp-development-with-a-local-subgraph-ganache-setup-566a4d4cbb
#### Run Docker
- docker-compose up
- sh run-graph-node.sh
You will see in Ganache eth_getBlockByNumber
## Step 4: Subnet local
- graph init
- ABI is in src/truffle_abis
- Contract ID
- graph init --contract-name FlipContract \ --index-events --studio \ --from-contract CONTRACT_ID
- cd subname
- Clean && npm run codegen
- npm run create-local
- npm run deploy-local
## See if it works - Console
- truffle console
- const truffleTutorial = await TruffleTutorial.deployed()
- const address = await truffleTutorial.address
- address
> '0xA91C04AEe928bF04f7457970f99bd8925Ec46B6f'
- const FlipContract = await FlipContract.deployed()
- const address_flip = await FlipContract.address
- address_flip
- const message = await truffleTutorial.message()
- message
> 'Hello World!'
- FlipContract.flip(0)
### Schema.graphql
```
type ExampleEntity @entity {
id: ID!
side: Int!
win: Boolean!
bet: BigInt!
}
```
### src/mapping
```
export function handlebet(event: bet): void {
let entity = ExampleEntity.load(event.transaction.from.toHex());
if (entity == null) {
entity = new ExampleEntity(event.transaction.from.toHex());
}
entity.bet = event.params.bet;
entity.win = event.params.win;
entity.side = event.params.side;
entity.save();
}
export function handlefunded(event: funded): void {}
```
## Funding Manual with console
- cd local_contract
- FlipContract = await FlipContract.deployed()
- FlipContract.fundContract({ value: 100000000000000000 });
# Issues
- https://ethereum.stackexchange.com/questions/99409/failed-to-deploy-to-graph-node-ethereum-network-not-supported-by-registrar-mai