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fix: use axios interceptor instead of inline config injection

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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>
This commit is contained in:
direkturcrypto
2026-03-27 14:36:21 +07:00
co-authored by Claude Opus 4.6
parent ae523c4f27
commit 0886938694
1 changed files with 40 additions and 105 deletions
Download Patch File Download Diff File Expand all files Collapse all files
scripts/patch-clob-client.cjs
+40 -105
View File
@@ -6,11 +6,9 @@
*
* What it does:
* - Adds HttpsProxyAgent import to http-helpers/index.js
* - Injects proxy agent into every axios request to polymarket.com
* - Registers an axios interceptor that injects the proxy agent
* into every request to polymarket.com
* - Reads PROXY_URL from process.env at runtime
*
* Uses regex matching so it works regardless of code formatting
* (minified, prettified, different whitespace, etc.)
*/
const fs = require('fs');
@@ -40,123 +38,60 @@ if (code.includes('getProxyAgent')) {
process.exit(0);
}
// ── Step 1: Inject proxy helper code ────────────────────────────────────────
// ── Inject proxy interceptor after axios import ─────────────────────────────
// Instead of patching individual request configs (which causes circular
// reference errors when the config gets serialized), we register an axios
// request interceptor that injects httpsAgent on the fly.
const PROXY_CODE = `
// Proxy support for Polymarket API (auto-patched by scripts/patch-clob-client.cjs)
const PATCH_CODE = `
// ── Proxy support (auto-patched by scripts/patch-clob-client.cjs) ──────────
const https_proxy_agent_1 = require("https-proxy-agent");
let _cachedProxyAgent = null;
const getProxyAgent = () => {
if (process.env.PROXY_URL) {
return new https_proxy_agent_1.HttpsProxyAgent(process.env.PROXY_URL);
if (!process.env.PROXY_URL) return undefined;
if (!_cachedProxyAgent) {
_cachedProxyAgent = new https_proxy_agent_1.HttpsProxyAgent(process.env.PROXY_URL);
}
return undefined;
return _cachedProxyAgent;
};
// Intercept all axios requests — inject proxy agent for polymarket.com
axios_1.default.interceptors.request.use(function(cfg) {
if (cfg.url && cfg.url.includes('polymarket.com')) {
var agent = getProxyAgent();
if (agent) {
cfg.httpsAgent = agent;
cfg.httpAgent = agent;
cfg.proxy = false;
}
}
return cfg;
});
// ── End proxy patch ────────────────────────────────────────────────────────
`;
// Try multiple insertion points — different versions format differently
const insertionPatterns = [
// Pattern 1: require("browser-or-node") with semicolon
/require\s*\(\s*["']browser-or-node["']\s*\)\s*;/,
// Pattern 2: require("axios") line (fallback)
// Find axios import to inject after — try multiple patterns
const axiosPatterns = [
// tslib __importDefault pattern (compiled TS)
/tslib_1\.__importDefault\s*\(\s*require\s*\(\s*["']axios["']\s*\)\s*\)\s*;/,
// Standard require
/require\s*\(\s*["']axios["']\s*\)\s*;/,
// Pattern 3: any require line near the top (last resort)
/const\s+\w+\s*=\s*require\s*\(\s*["']axios["']\s*\)/,
];
let inserted = false;
for (const pattern of insertionPatterns) {
let injected = false;
for (const pattern of axiosPatterns) {
const match = code.match(pattern);
if (match) {
code = code.replace(match[0], match[0] + PROXY_CODE);
console.log(`[patch] Injected proxy helper after: ${match[0].substring(0, 50)}...`);
inserted = true;
code = code.replace(match[0], match[0] + PATCH_CODE);
console.log(`[patch] Injected proxy interceptor after axios import`);
injected = true;
break;
}
}
if (!inserted) {
console.error('[patch] Could not find insertion point for proxy code — skipping');
process.exit(0);
}
// ── Step 2: Patch the request function to inject proxy agent ────────────────
// The compiled code can have two formats:
//
// Format A (some versions): uses a `config` variable
// const config = { method, url: endpoint, headers, data, params };
// ... axios_1.default(config) ...
//
// Format B (VPS/fresh install): inline object passed to axios
// return yield (0, axios_1.default)({ method, url: endpoint, headers, data, params });
let patched = false;
// ── Try Format A: explicit config variable ──────────────────────────────────
const configRegex = /(?:const|let|var)\s+config\s*=\s*\{\s*method\s*,\s*url\s*:\s*endpoint\s*,\s*headers\s*,\s*data\s*,\s*params\s*\}\s*;/;
const configMatch = code.match(configRegex);
if (configMatch) {
const PROXY_INJECT = `${configMatch[0]}
// Add proxy agent for Polymarket API
if (endpoint && endpoint.includes('polymarket.com')) {
const agent = getProxyAgent();
if (agent) {
config.httpsAgent = agent;
config.proxy = false;
}
}`;
code = code.replace(configMatch[0], PROXY_INJECT);
console.log('[patch] Injected proxy agent into request config (Format A)');
patched = true;
}
// ── Try Format B: inline axios call with object literal ─────────────────────
// Matches: (0, axios_1.default)({ method, url: endpoint, headers, data, params })
// or: axios_1.default({ method, url: endpoint, headers, data, params })
if (!patched) {
const inlineRegex = /(\(0,\s*axios_1\.default\)\s*\(\s*)\{\s*method\s*,\s*url\s*:\s*endpoint\s*,\s*headers\s*,\s*data\s*,\s*params\s*\}/;
const inlineMatch = code.match(inlineRegex);
if (inlineMatch) {
// Replace the inline object with a function that builds + injects proxy
const replacement = `(() => { const _cfg = { method, url: endpoint, headers, data, params }; const _agent = getProxyAgent(); if (_agent && endpoint && endpoint.includes('polymarket.com')) { _cfg.httpsAgent = _agent; _cfg.proxy = false; } return _cfg; })()`;
// Replace just the object literal part: { method, url: endpoint, ... }
// Keep the (0, axios_1.default)( prefix
code = code.replace(inlineMatch[0], inlineMatch[1] + replacement);
console.log('[patch] Injected proxy agent into inline axios call (Format B)');
patched = true;
}
}
// ── Try Format C: any axios call with config object ─────────────────────────
if (!patched) {
const axiosCallRegex = /axios_1\.default\s*\(\s*\{\s*method/;
const axiosMatch = code.match(axiosCallRegex);
if (axiosMatch) {
// Find the full object literal by counting braces
const startIdx = code.indexOf(axiosMatch[0]);
const braceStart = code.indexOf('{', startIdx);
let depth = 0;
let braceEnd = braceStart;
for (let i = braceStart; i < code.length; i++) {
if (code[i] === '{') depth++;
if (code[i] === '}') depth--;
if (depth === 0) { braceEnd = i; break; }
}
const objectLiteral = code.substring(braceStart, braceEnd + 1);
const replacement = `(() => { const _cfg = ${objectLiteral}; const _agent = getProxyAgent(); if (_agent && _cfg.url && _cfg.url.includes('polymarket.com')) { _cfg.httpsAgent = _agent; _cfg.proxy = false; } return _cfg; })()`;
code = code.substring(0, braceStart) + replacement + code.substring(braceEnd + 1);
console.log('[patch] Injected proxy agent via brace-matching (Format C)');
patched = true;
}
}
if (!patched) {
console.error('[patch] Could not find request config or axios call — skipping');
console.error('[patch] File content preview (first 2000 chars):');
console.error(code.substring(0, 2000));
if (!injected) {
console.error('[patch] Could not find axios import — skipping');
console.error('[patch] File content preview (first 1000 chars):');
console.error(code.substring(0, 1000));
process.exit(0);
}