fix: raise request body limit to 1GB

config.example.json

@@ -8,7 +8,7 @@
   "upstream_auth_file": "",
   "upstream_auth_json_path": "",
   "upstream_auth_json_key": "OPENAI_API_KEY",
-  "request_body_limit_bytes": 10485760,
+  "request_body_limit_bytes": 1073741824,
   "request_history_limit": 200,
   "endpoints": ["/responses", "/chat/completions", "/v1/responses", "/v1/chat/completions"],
   "reasoning_equals": [516],

gateway.mjs

@@ -38,7 +38,7 @@ const DEFAULT_CONFIG = {
   upstream_auth_file: "",
   upstream_auth_json_path: "",
   upstream_auth_json_key: "OPENAI_API_KEY",
-  request_body_limit_bytes: 10 * 1024 * 1024,
+  request_body_limit_bytes: 1024 * 1024 * 1024,
   request_history_limit: 0,
   model_remap: "",
   endpoints: ["/responses", "/chat/completions", "/v1/responses", "/v1/chat/completions"],

scripts/admin-lib.mjs

@@ -7,6 +7,8 @@ import os from "node:os";
 import path from "node:path";
 
 export const DEFAULT_STATE_ROOT = path.join(os.homedir(), ".codex-retry-gateway");
+const DEFAULT_REQUEST_BODY_LIMIT_BYTES = 1024 * 1024 * 1024;
+const LEGACY_DEFAULT_REQUEST_BODY_LIMIT_BYTES = 10 * 1024 * 1024;
 export const DEFAULT_CODEX_CONFIG_PATH = path.join(os.homedir(), ".codex", "config.toml");
 export const DEFAULT_LISTEN_HOST = "127.0.0.1";
 export const DEFAULT_LISTEN_PORT = 4610;
@@ -421,8 +423,12 @@ export async function installForCurrentProvider({
     upstream_base_url: originalBaseUrl,
     request_body_limit_bytes:
       existingGatewayConfig?.request_body_limit_bytes === undefined || existingGatewayConfig?.request_body_limit_bytes === null
-        ? 10485760
+        ? DEFAULT_REQUEST_BODY_LIMIT_BYTES
-        : Number.parseInt(`${existingGatewayConfig.request_body_limit_bytes}`, 10),
+        : (
+            Number.parseInt(`${existingGatewayConfig.request_body_limit_bytes}`, 10) === LEGACY_DEFAULT_REQUEST_BODY_LIMIT_BYTES
+              ? DEFAULT_REQUEST_BODY_LIMIT_BYTES
+              : Number.parseInt(`${existingGatewayConfig.request_body_limit_bytes}`, 10)
+          ),
     endpoints: mergedEndpoints,
     reasoning_equals: normalizeIntArray(existingGatewayConfig?.reasoning_equals, [516]),
     retryable_status_codes: normalizeIntArray(existingGatewayConfig?.retryable_status_codes, [429, 503]),

scripts/install-for-current-provider.ps1

@@ -58,7 +58,9 @@ $gatewayConfig = [ordered]@{
   listen_host = $ListenHost
   listen_port = $ListenPort
   upstream_base_url = $originalBaseUrl
-  request_body_limit_bytes = if ($existingGatewayConfig -and $null -ne $existingGatewayConfig.request_body_limit_bytes) { [int]$existingGatewayConfig.request_body_limit_bytes } else { 10485760 }
+  request_body_limit_bytes = if ($existingGatewayConfig -and $null -ne $existingGatewayConfig.request_body_limit_bytes) {
+    if ([int]$existingGatewayConfig.request_body_limit_bytes -eq 10485760) { 1073741824 } else { [int]$existingGatewayConfig.request_body_limit_bytes }
+  } else { 1073741824 }
   endpoints = @($mergedEndpoints)
   reasoning_equals = Normalize-IntArray -Values $(if ($existingGatewayConfig) { $existingGatewayConfig.reasoning_equals } else { $null }) -Default @(516)
   non_stream_status_code = if ($existingGatewayConfig -and $null -ne $existingGatewayConfig.non_stream_status_code) { [int]$existingGatewayConfig.non_stream_status_code } else { 502 }

scripts/run-profile.mjs

@@ -28,6 +28,8 @@ import {
 } from "./admin-lib.mjs";
 
 const DEFAULT_PROFILES_DIR = path.join(os.homedir(), ".config", "codex-retry-gateway", "profiles");
+const DEFAULT_REQUEST_BODY_LIMIT_BYTES = 1024 * 1024 * 1024;
+const LEGACY_DEFAULT_REQUEST_BODY_LIMIT_BYTES = 10 * 1024 * 1024;
 
 function parseEnvFile(content) {
   const parsed = {};
@@ -91,6 +93,17 @@ function boolFromEnv(value, fallback = false) {
   return ["1", "true", "yes", "on"].includes(`${value}`.trim().toLowerCase());
 }
 
+function normalizeRequestBodyLimitBytes(value) {
+  const parsed = Number.parseInt(`${value ?? ""}`, 10);
+  if (!Number.isFinite(parsed) || parsed <= 0) {
+    return DEFAULT_REQUEST_BODY_LIMIT_BYTES;
+  }
+  if (parsed === LEGACY_DEFAULT_REQUEST_BODY_LIMIT_BYTES) {
+    return DEFAULT_REQUEST_BODY_LIMIT_BYTES;
+  }
+  return parsed;
+}
+
 function normalizeAuthMode(value) {
   const mode = `${value || "passthrough"}`.trim().toLowerCase();
   if (["passthrough", "fixed_bearer", "manual_bearer", "auth_json"].includes(mode)) {
@@ -180,8 +193,8 @@ function buildProfileConfig({ profileName, profileEnv, existingGatewayConfig, pr
     upstream_base_url: upstreamBaseUrl,
     ...profileAuthConfig,
     request_body_limit_bytes: profileEnv.CODEX_RETRY_GATEWAY_REQUEST_BODY_LIMIT_BYTES
-      ? Number.parseInt(`${profileEnv.CODEX_RETRY_GATEWAY_REQUEST_BODY_LIMIT_BYTES}`, 10)
+      ? normalizeRequestBodyLimitBytes(profileEnv.CODEX_RETRY_GATEWAY_REQUEST_BODY_LIMIT_BYTES)
-      : Number.parseInt(`${existingGatewayConfig?.request_body_limit_bytes || 10485760}`, 10),
+      : normalizeRequestBodyLimitBytes(existingGatewayConfig?.request_body_limit_bytes),
     request_history_limit: profileEnv.CODEX_RETRY_GATEWAY_REQUEST_HISTORY_LIMIT
       ? Number.parseInt(`${profileEnv.CODEX_RETRY_GATEWAY_REQUEST_HISTORY_LIMIT}`, 10)
       : Number.parseInt(`${existingGatewayConfig?.request_history_limit || 200}`, 10),

scripts/test-gateway-e2e.mjs

@@ -384,7 +384,7 @@ async function run() {
     listen_host: "127.0.0.1",
     listen_port: gatewayPort,
     upstream_base_url: `http://127.0.0.1:${upstreamPort}`,
-    request_body_limit_bytes: 10 * 1024 * 1024,
+    request_body_limit_bytes: 1024 * 1024 * 1024,
     endpoints: ["/responses", "/chat/completions", "/v1/responses", "/v1/chat/completions"],
     reasoning_equals: [516],
     retryable_status_codes: [429, 503],