Question 1

How do I send a transaction using ethrpc in Go?

Accepted Answer

Use the EthSendTransaction method with a transaction struct, as shown in the README example. You need to specify parameters like From, To, and Value, but handle signing externally if using raw transactions.

Question 2

Ethrpc vs go-ethereum ethclient: which is better for Go projects?

Accepted Answer

Ethrpc is a lightweight wrapper focused on JSON-RPC calls, ideal for simple interactions. Go-ethereum's ethclient offers more features like contract bindings and is part of the Geth suite, better for full Ethereum integration.

Question 3

Does ethrpc support real-time event monitoring?

Accepted Answer

Ethrpc supports filter-based logging via methods like eth_newFilter and eth_getFilterChanges, but it uses polling over HTTP. For real-time WebSocket subscriptions, you'll need to implement additional logic or use another library.

Question 4

How to estimate gas costs with ethrpc?

Accepted Answer

Call the EthEstimateGas method with transaction parameters to get an estimated gas limit. This helps avoid overpaying, but ensure your node supports this RPC method, as it's commonly available.

Question 5

Is ethrpc compatible with node providers like Infura?

Accepted Answer

Yes, ethrpc works with any Ethereum node exposing JSON-RPC over HTTP, including Infura or Alchemy. Just pass the provider's endpoint URL when initializing the client.

Question 6

What error handling should I use with ethrpc?

Accepted Answer

Always check the error returned by ethrpc methods, as in the README example. Common issues include network timeouts or invalid inputs; implement retries or logging based on your app's reliability needs.

ethrpc

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