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Automatic abi fetch
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-42
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8 files changed

+599
-42
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‎app/api/web3/fetch-abi/route.ts‎

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import { ethers } from "ethers";
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import { NextResponse } from "next/server";
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import { auth } from "@/lib/auth";
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const ETHERSCAN_API_KEY = process.env.ETHERSCAN_API_KEY || "";
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/**
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* Get Etherscan API URL and chainid based on network (using v2 API)
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* V2 uses a single base URL with chainid parameter instead of network-specific subdomains
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*/
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function getEtherscanApiConfig(network: string): {
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baseUrl: string;
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chainid: string;
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} {
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const configs: Record<string, { baseUrl: string; chainid: string }> = {
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mainnet: {
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baseUrl: "https://api.etherscan.io/v2/api",
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chainid: "1",
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},
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sepolia: {
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baseUrl: "https://api.etherscan.io/v2/api",
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chainid: "11155111",
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},
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};
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const config = configs[network];
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if (!config) {
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throw new Error(`Unsupported network: ${network}`);
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}
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return config;
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}
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/**
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* Parse Etherscan error message into user-friendly message
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*/
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function parseEtherscanError(
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data: { status: string; message: string; result: string },
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contractAddress: string,
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network: string
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): string {
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const errorMessage =
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data.result || data.message || "Failed to fetch ABI from Etherscan";
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const lowerMessage = errorMessage.toLowerCase();
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// Log the full response for debugging
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console.error("[Etherscan] API error response:", {
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status: data.status,
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message: data.message,
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result: data.result,
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contractAddress,
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network,
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});
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// Provide user-friendly error messages for common cases
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if (
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lowerMessage.includes("not verified") ||
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lowerMessage.includes("source code not verified")
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) {
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return "Contract source code not verified on Etherscan. Please provide ABI manually.";
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}
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if (
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lowerMessage.includes("invalid api key") ||
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lowerMessage.includes("api key")
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) {
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return "Etherscan API key is invalid or not configured. Please contact support.";
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}
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if (
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lowerMessage.includes("rate limit") ||
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lowerMessage.includes("max rate limit")
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) {
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return "Etherscan API rate limit exceeded. Please try again in a few moments.";
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}
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// Handle deprecated V1 endpoint error
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if (
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lowerMessage.includes("deprecated") ||
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lowerMessage.includes("v1 endpoint") ||
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lowerMessage.includes("v2-migration")
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) {
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return "Etherscan API endpoint needs to be updated. Please contact support.";
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}
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// For "NOTOK" generic errors, provide a more helpful message
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if (errorMessage === "NOTOK" || data.message === "NOTOK") {
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return "Unable to fetch ABI from Etherscan. The contract may not be verified, or there may be an API issue. Please try providing the ABI manually.";
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}
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// For other errors, use the result message if available
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return errorMessage;
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}
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/**
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* Fetch ABI from Etherscan API
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*/
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async function fetchAbiFromEtherscan(
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contractAddress: string,
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network: string
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): Promise<string> {
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console.log("[Etherscan] fetchAbiFromEtherscan called with:", {
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contractAddress,
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network,
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});
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if (!ETHERSCAN_API_KEY) {
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console.error("[Etherscan] API key not configured");
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throw new Error("Etherscan API key not configured");
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}
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console.log("[Etherscan] API key present:", ETHERSCAN_API_KEY ? "Yes" : "No");
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// Validate contract address
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if (!ethers.isAddress(contractAddress)) {
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console.error("[Etherscan] Invalid contract address:", contractAddress);
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throw new Error(`Invalid contract address: ${contractAddress}`);
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}
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console.log("[Etherscan] Contract address validated");
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const { baseUrl, chainid } = getEtherscanApiConfig(network);
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console.log("[Etherscan] Base URL:", baseUrl);
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console.log("[Etherscan] Chain ID:", chainid);
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const url = new URL(baseUrl);
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url.searchParams.set("chainid", chainid);
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url.searchParams.set("module", "contract");
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url.searchParams.set("action", "getabi");
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url.searchParams.set("address", contractAddress);
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url.searchParams.set("apikey", ETHERSCAN_API_KEY);
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const requestUrl = url.toString();
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console.log(
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"[Etherscan] Full request URL:",
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requestUrl.replace(ETHERSCAN_API_KEY, "***")
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);
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console.log("[Etherscan] Making fetch request...");
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const response = await fetch(requestUrl);
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console.log(
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"[Etherscan] Response status:",
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response.status,
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response.statusText
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);
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console.log("[Etherscan] Response ok:", response.ok);
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if (!response.ok) {
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console.error("[Etherscan] HTTP error response:", {
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status: response.status,
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statusText: response.statusText,
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});
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throw new Error(
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`Etherscan API error: ${response.status} ${response.statusText}`
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);
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}
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console.log("[Etherscan] Parsing JSON response...");
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const data = (await response.json()) as {
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status: string;
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message: string;
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result: string;
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};
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console.log("[Etherscan] Response data:", {
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status: data.status,
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message: data.message,
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resultLength: data.result ? data.result.length : 0,
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});
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if (data.status === "0") {
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// Etherscan returns status "0" for errors
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console.error("[Etherscan] Etherscan API returned error status");
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const errorMessage = parseEtherscanError(data, contractAddress, network);
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throw new Error(errorMessage);
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}
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if (!data.result || data.result === "Contract source code not verified") {
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console.error("[Etherscan] Contract not verified or no result");
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throw new Error(
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"Contract source code not verified on Etherscan. Please provide ABI manually."
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);
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}
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// Validate that result is valid JSON
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try {
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console.log("[Etherscan] Validating ABI JSON...");
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const abi = JSON.parse(data.result);
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if (!Array.isArray(abi)) {
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console.error("[Etherscan] ABI is not an array");
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throw new Error("Invalid ABI format: expected array");
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}
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console.log(
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"[Etherscan] ABI validated successfully, item count:",
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abi.length
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);
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return data.result;
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} catch (error) {
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console.error("[Etherscan] Failed to parse ABI:", error);
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throw new Error(
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`Invalid ABI format from Etherscan: ${
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error instanceof Error ? error.message : "Unknown error"
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}`
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);
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}
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}
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export async function POST(request: Request) {
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try {
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console.log("[Etherscan] POST request received");
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// Authenticate user
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const session = await auth.api.getSession({
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headers: request.headers,
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});
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if (!session?.user) {
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console.log("[Etherscan] Unauthorized - no session");
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return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
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}
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console.log("[Etherscan] User authenticated:", session.user.id);
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// Parse request body
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const body = (await request.json().catch(() => ({}))) as {
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contractAddress?: string;
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network?: string;
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};
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console.log("[Etherscan] Request body:", body);
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const { contractAddress, network } = body;
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if (!contractAddress) {
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console.log("[Etherscan] Missing contract address");
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return NextResponse.json(
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{ error: "Contract address is required" },
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{ status: 400 }
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);
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}
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if (!network) {
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console.log("[Etherscan] Missing network");
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return NextResponse.json(
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{ error: "Network is required" },
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{ status: 400 }
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);
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}
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console.log("[Etherscan] Fetching ABI for:", { contractAddress, network });
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// Fetch ABI from Etherscan
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const abi = await fetchAbiFromEtherscan(contractAddress, network);
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console.log("[Etherscan] Successfully fetched ABI, length:", abi.length);
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return NextResponse.json({
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success: true,
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abi,
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});
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} catch (error) {
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console.error("[Etherscan] Failed to fetch ABI:", error);
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console.error(
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"[Etherscan] Error stack:",
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error instanceof Error ? error.stack : "No stack"
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);
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return NextResponse.json(
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{
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error:
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error instanceof Error
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? error.message
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: "Failed to fetch ABI from Etherscan",
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},
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{ status: 500 }
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);
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}
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}

‎components/ui/checkbox.tsx‎

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"use client"
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import * as React from "react"
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import * as CheckboxPrimitive from "@radix-ui/react-checkbox"
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import { CheckIcon } from "lucide-react"
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import { cn } from "@/lib/utils"
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function Checkbox({
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className,
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...props
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}: React.ComponentProps<typeof CheckboxPrimitive.Root>) {
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return (
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<CheckboxPrimitive.Root
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data-slot="checkbox"
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className={cn(
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"peer border-input dark:bg-input/30 data-[state=checked]:bg-primary data-[state=checked]:text-primary-foreground dark:data-[state=checked]:bg-primary data-[state=checked]:border-primary focus-visible:border-ring focus-visible:ring-ring/50 aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive size-4 shrink-0 rounded-[4px] border shadow-xs transition-shadow outline-none focus-visible:ring-[3px] disabled:cursor-not-allowed disabled:opacity-50",
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className
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)}
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{...props}
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>
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<CheckboxPrimitive.Indicator
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data-slot="checkbox-indicator"
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className="grid place-content-center text-current transition-none"
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>
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<CheckIcon className="size-3.5" />
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</CheckboxPrimitive.Indicator>
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</CheckboxPrimitive.Root>
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)
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}
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export { Checkbox }

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