direkturcrypto
0886938694
The IIFE approach that injected httpsAgent into the request config caused "Converting circular structure to JSON" when the CLOB client serialized the config object (HttpsProxyAgent has circular refs). New approach: register an axios request interceptor after the axios import. This is simpler (no need to find request config patterns), works with any code format, and avoids serialization issues since axios handles httpsAgent internally after interceptors run. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
100 lines
3.2 KiB
JavaScript
100 lines
3.2 KiB
JavaScript
/**
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* patch-clob-client.cjs
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*
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* Patches @polymarket/clob-client to inject proxy support.
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* Runs automatically via `npm install` (postinstall hook).
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*
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* What it does:
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* - Adds HttpsProxyAgent import to http-helpers/index.js
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* - Registers an axios interceptor that injects the proxy agent
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* into every request to polymarket.com
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* - Reads PROXY_URL from process.env at runtime
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*/
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const fs = require('fs');
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const path = require('path');
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const TARGET = path.join(
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__dirname,
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'..',
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'node_modules',
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'@polymarket',
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'clob-client',
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'dist',
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'http-helpers',
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'index.js',
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);
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if (!fs.existsSync(TARGET)) {
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console.log('[patch] @polymarket/clob-client not found — skipping');
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process.exit(0);
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}
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let code = fs.readFileSync(TARGET, 'utf8');
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// Check if already patched
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if (code.includes('getProxyAgent')) {
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console.log('[patch] @polymarket/clob-client already patched — skipping');
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process.exit(0);
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}
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// ── Inject proxy interceptor after axios import ─────────────────────────────
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// Instead of patching individual request configs (which causes circular
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// reference errors when the config gets serialized), we register an axios
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// request interceptor that injects httpsAgent on the fly.
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const PATCH_CODE = `
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// ── Proxy support (auto-patched by scripts/patch-clob-client.cjs) ──────────
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const https_proxy_agent_1 = require("https-proxy-agent");
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let _cachedProxyAgent = null;
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const getProxyAgent = () => {
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if (!process.env.PROXY_URL) return undefined;
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if (!_cachedProxyAgent) {
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_cachedProxyAgent = new https_proxy_agent_1.HttpsProxyAgent(process.env.PROXY_URL);
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}
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return _cachedProxyAgent;
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};
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// Intercept all axios requests — inject proxy agent for polymarket.com
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axios_1.default.interceptors.request.use(function(cfg) {
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if (cfg.url && cfg.url.includes('polymarket.com')) {
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var agent = getProxyAgent();
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if (agent) {
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cfg.httpsAgent = agent;
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cfg.httpAgent = agent;
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cfg.proxy = false;
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}
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}
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return cfg;
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});
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// ── End proxy patch ────────────────────────────────────────────────────────
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`;
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// Find axios import to inject after — try multiple patterns
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const axiosPatterns = [
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// tslib __importDefault pattern (compiled TS)
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/tslib_1\.__importDefault\s*\(\s*require\s*\(\s*["']axios["']\s*\)\s*\)\s*;/,
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// Standard require
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/require\s*\(\s*["']axios["']\s*\)\s*;/,
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];
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let injected = false;
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for (const pattern of axiosPatterns) {
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const match = code.match(pattern);
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if (match) {
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code = code.replace(match[0], match[0] + PATCH_CODE);
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console.log(`[patch] Injected proxy interceptor after axios import`);
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injected = true;
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break;
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}
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}
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if (!injected) {
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console.error('[patch] Could not find axios import — skipping');
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console.error('[patch] File content preview (first 1000 chars):');
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console.error(code.substring(0, 1000));
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process.exit(0);
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}
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fs.writeFileSync(TARGET, code, 'utf8');
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console.log('[patch] @polymarket/clob-client patched with proxy support ✅');
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