https://github.com/tr1sm0s1n/go-dapp-example

DApp example of deploying and interacting with Solidity smart contract using Go.
https://github.com/tr1sm0s1n/go-dapp-example

api dapp ethereum events gin gin-gonic go go-ethereum golang smart-contracts solidity websocket

Last synced: 3 months ago
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DApp example of deploying and interacting with Solidity smart contract using Go.

• Host: GitHub
• URL: https://github.com/tr1sm0s1n/go-dapp-example
• Owner: tr1sm0s1n
• License: mit
• Created: 2023-07-21T14:30:22.000Z (almost 3 years ago)
• Default Branch: main
• Last Pushed: 2024-05-11T16:58:37.000Z (about 2 years ago)
• Last Synced: 2024-05-12T15:52:17.248Z (about 2 years ago)
• Topics: api, dapp, ethereum, events, gin, gin-gonic, go, go-ethereum, golang, smart-contracts, solidity, websocket
• Language: Go
• Homepage:
• Size: 101 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • Contributing: CONTRIBUTING.md
  • License: LICENSE.md
  • Code of conduct: CODE_OF_CONDUCT.md

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README

          
# Go-DApp-Example

DApp example of deploying and interacting with Solidity smart contract using Go.

## 🛠 Built With

[![Go Badge](https://img.shields.io/badge/Go-00ADD8?logo=go&logoColor=fff&style=for-the-badge)](https://go.dev/)

[![Gin Badge](https://img.shields.io/badge/Gin-008ECF?logo=gin&logoColor=fff&style=for-the-badge)](https://gin-gonic.com/)

[![Geth Badge](https://img.shields.io/badge/Geth-3C3C3D?logo=ethereum&logoColor=fff&style=for-the-badge)](https://geth.ethereum.org/)

[![Solidity Badge](https://img.shields.io/badge/Solidity-363636?logo=solidity&logoColor=fff&style=for-the-badge)](https://soliditylang.org/)

## ⚙️ Run Locally

Clone the project.

```bash

git clone https://github.com/tr1sm0s1n/go-dapp-example.git

cd go-dapp-example

```

Install **abigen**.

```bash

go install github.com/ethereum/go-ethereum/cmd/abigen@latest

```

Generate Go binding for contract.

```bash

abigen --v2 --bin lib/Cert.bin --abi lib/Cert.json --pkg lib --type Cert --out lib/Cert.go

```

Run a blockchain simulation on port **8545** (both http & ws). Copy a valid private key (omit '0x') and export it.

```bash

export PRIVATE_KEY=

```

Deploy the contract.

```bash

go run ./cmd/deploy.go

```

Copy the contract address from the terminal and export it.

```bash

export CONTRACT_ADDRESS=

```

Start the application.

```bash

go run .

```

Start the event listener (new terminal).

```bash

go run ./events/events.go

```

Issue a certificate (new terminal).

```bash

curl -X POST http://localhost:8080/issue -H "Content-Type: application/json" -d '{"id": 626, "name": "Jane", "course": "MBCC", "grade": "A", "date": "04-06-25"}'

```

Fetch a certificate.

```bash

curl http://localhost:8080/fetch/626

```

Get event logs.

```bash

curl http://localhost:8080/events

```

## 📜 License

Click [here](./LICENSE.md).

## 🎗️ Contributing

Click [here](./CONTRIBUTING.md).

## ⚖️ Code of Conduct

Click [here](./CODE_OF_CONDUCT.md).