I work at the posts office

terminally.online

@horsefacts.eth, I'm trying to test a USDC approval tx on Base Sepolia, and I get:

[Error] provider request error – Provider.UnsupportedMethodError: Farcaster Wallet does not support the requested method: eth_estimateGas

Any ideas? What Am I doing wrong? (Using ethers)

Dad, geek, conversation liquidity provider. vrypan.net | @l--o--l | $lemon3 | @wdimapp

we don't expose access to read methods from the provider, you need to use your own RPC to call these. 

Viem makes a distinction between "public" and "wallet" clients, but Ethers doesn't. we only support the "wallet" methods (unfortunately otherwise there is too much abuse of our "free" RPCs). 

if you're using Ethers, you probably need another Provider, or perhaps to configure your existing Provider to fall back to a public RPC.

Thank you. I'm once again lost in the living hell called miniapps+wagmi+viem+all_the_shit_that_comes_with_them_and_their_versions :-(

I remember there used to be some sample miniapps, but I can't find any links. Are they still somewhere? Are they up to date?

The "vanilla" example here is up to date: https://github.com/farcasterxyz/miniapps/blob/main/examples/vanilla/frame/index.ts

@jc4p is the main person I know who does not use the viem/wagmi stack for mini apps. you might look at his repos for more examples.

pure vanilla js (i also use vite) docs for doing this: https://github.com/jc4p/frames-llm-docs/blob/main/LLM_INSTRUCTIONS_vanilla_js.md#onchain-events

checkout the calling a custom function and drop the ABI args for it into the ethProvider, then call the Transfer one above it. no viem no wagmi no nothing.

to be super clear:

- anything you want to do that isn't switch chain, sign tx, send tx, or get accounts needs to happen with a diff ethProvider than the mini app supplied one
- wagmi etc abstract this out for you, if you do it by hand you need to ensure any calls you need to make happen via another provider (your own custom JSON-RPC, viem with mainnet, wagmi with mainnet, anything you want)