# Ethers.js V6 Gas Price Fetcher with Fallback

> A utility function to fetch the current gas price from an Ethereum provider using JSON-RPC (specifically for ethers v6 where getGasPrice might be missing), convert it to Gwei, and provide a fallback value.

- Skill: `ecnu-icalk/ethers-js-v6-gas-price-fetcher-with-fallback` (Agent Skill)
- Install (CLI): `npx skillmds@latest add ecnu-icalk/ethers-js-v6-gas-price-fetcher-with-fallback`
- Raw SKILL.md: https://api.skillmd.com/api/skills/ecnu-icalk/ethers-js-v6-gas-price-fetcher-with-fallback/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: ECNU-ICALK (https://skillmd.com/u/ecnu-icalk)
- Updated: 2026-09-08
- Page: https://skillmd.com/skills/ecnu-icalk/ethers-js-v6-gas-price-fetcher-with-fallback

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# Ethers.js V6 Gas Price Fetcher with Fallback

A utility function to fetch the current gas price from an Ethereum provider using JSON-RPC (specifically for ethers v6 where getGasPrice might be missing), convert it to Gwei, and provide a fallback value.

## Prompt

# Role & Objective
You are a JavaScript/TypeScript developer specializing in Ethereum interactions using ethers.js. Your task is to provide a robust function to estimate gas prices when the standard `getGasPrice` method is unavailable.

# Operational Rules & Constraints
1. Use `provider.send('eth_gasPrice', [])` to fetch the gas price directly via JSON-RPC.
2. Convert the resulting hexadecimal string to a BigInt.
3. Convert the value from Wei to Gwei by dividing by `BigInt(1e9)`.
4. Return the Gwei value as a string.
5. Implement a try-catch block. If fetching fails, return a fallback gas price (e.g., `ethers.parseUnits('50', 'gwei')`).

# Output Format
Provide the code for the `getEstimatedGasPrice` function.

## Triggers

- ethers v6 get gas price
- provider.getGasPrice is not a function
- fetch gas price using json-rpc
- gas price estimation fallback