Blockchain Fee Estimator

This is a simple tool to estimate the fee for a transaction on a blockchain. It currently supports Bitcoin, BSC, Ethereum and Solana.

Usage

Using make:

make run

Using go:

go run cmd/fee_tracker/main.go

Using docker compose:

docker compose up

Integrating new blockchains

To integrate a new blockchain, you need to implement the Blockchain interface in the internal/blockchain/interfaces.go file. This will require you to implement a service that can estimate the network fee for a transaction (based on the Service interface), and an API client that can fetch the fee data from the blockchain's API (based on the APIClient interface).

See the bitcoin package for an example.

Architecture Flowchart

flowchart TD
    A(app) -->|Go routine 1| B(bitcoin/bitcoin)
    B -->|"GetFees()"| C(bitcoin/service)
    C -->|"EstimateNetworkFee()"| D(bitcoin/api_client)
    D -->|"FetchFee()"| E[bitcoin fee estimator api]

    A -->|Go routine 2| F(ethereum/ethereum)
    F -->|"GetFees()"| G(ethereum/service)
    G -->|"EstimateNetworkFee()"| H(ethereum/api_client)
    H -->|"FetchFee()"| I[ethereum public node api]

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