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<h1><a href="../../../../index.html">All files</a> / <a href="index.html">src/utils/internal/error-handler</a> mappings.ts</h1>
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<span class="strong">98.62% </span>
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<span class="strong">88.88% </span>
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<span class="strong">98.62% </span>
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">/**
* @fileoverview Shared error classification constants used by the error handler.
* Enhanced with regex caching for performance and provider-specific error patterns.
* @module src/utils/internal/error-handler/mappings
*/
import { JsonRpcErrorCode } from '@/types-global/errors.js';
import type { BaseErrorMapping } from './types.js';
/**
* Compiled regex cache for performance optimization.
* Prevents repeated regex compilation on every error classification.
* @private
*/
const COMPILED_PATTERN_CACHE = new Map<string, RegExp>();
/**
* Compiles and caches regex patterns at first use for faster matching.
* Automatically adds case-insensitive flag and removes global flag for safety.
* @param pattern - Pattern to compile (string or RegExp)
* @returns Compiled and cached RegExp instance
*/
export function getCompiledPattern(pattern: string | RegExp): RegExp {
// Create a stable cache key
const cacheKey =
pattern instanceof RegExp ? pattern.source + pattern.flags : pattern;
// Return cached pattern if available
if (COMPILED_PATTERN_CACHE.has(cacheKey)) <span class="branch-0 cbranch-no" title="branch not covered" >{</span>
<span class="cstat-no" title="statement not covered" > return COMPILED_PATTERN_CACHE.get(cacheKey)!;</span>
<span class="cstat-no" title="statement not covered" > }</span>
// Compile new pattern
let compiled: RegExp;
if (pattern instanceof RegExp) {
// Remove global flag, ensure case-insensitive
let flags = pattern.flags.replace('g', '');
if (!flags.includes('i')) {
flags += 'i';
}
compiled = new RegExp(pattern.source, flags);
} else {
compiled = new RegExp(pattern, 'i');
}
// Cache for future use
COMPILED_PATTERN_CACHE.set(cacheKey, compiled);
return compiled;
}
/**
* Extended error mapping interface that includes pre-compiled regex pattern.
* @private
*/
interface CompiledErrorMapping extends BaseErrorMapping {
/** Pre-compiled regex pattern for efficient matching */
compiledPattern: RegExp;
}
/**
* Maps standard JavaScript error constructor names to `JsonRpcErrorCode` values.
*/
export const ERROR_TYPE_MAPPINGS: Readonly<Record<string, JsonRpcErrorCode>> = {
SyntaxError: JsonRpcErrorCode.ValidationError,
TypeError: JsonRpcErrorCode.ValidationError,
ReferenceError: JsonRpcErrorCode.InternalError,
RangeError: JsonRpcErrorCode.ValidationError,
URIError: JsonRpcErrorCode.ValidationError,
EvalError: JsonRpcErrorCode.InternalError,
AggregateError: JsonRpcErrorCode.InternalError,
};
/**
* Array of `BaseErrorMapping` rules to classify errors by message/name patterns.
* Order matters: more specific patterns should precede generic ones.
*/
export const COMMON_ERROR_PATTERNS: ReadonlyArray<Readonly<BaseErrorMapping>> =
[
{
pattern:
/auth|unauthorized|unauthenticated|not.*logged.*in|invalid.*token|expired.*token/i,
errorCode: JsonRpcErrorCode.Unauthorized,
},
{
pattern: /permission|forbidden|access.*denied|not.*allowed/i,
errorCode: JsonRpcErrorCode.Forbidden,
},
{
pattern: /not found|missing|no such|doesn't exist|couldn't find/i,
errorCode: JsonRpcErrorCode.NotFound,
},
{
pattern:
/invalid|validation|malformed|bad request|wrong format|missing required/i,
errorCode: JsonRpcErrorCode.ValidationError,
},
{
pattern: /conflict|already exists|duplicate|unique constraint/i,
errorCode: JsonRpcErrorCode.Conflict,
},
{
pattern: /rate limit|too many requests|throttled/i,
errorCode: JsonRpcErrorCode.RateLimited,
},
{
pattern: /timeout|timed out|deadline exceeded/i,
errorCode: JsonRpcErrorCode.Timeout,
},
{
pattern: /abort(ed)?|cancell?ed/i,
errorCode: JsonRpcErrorCode.Timeout,
},
{
pattern:
/service unavailable|bad gateway|gateway timeout|upstream error/i,
errorCode: JsonRpcErrorCode.ServiceUnavailable,
},
{
pattern: /zod|zoderror|schema validation/i,
errorCode: JsonRpcErrorCode.ValidationError,
},
];
/**
* Pre-compiled error patterns for performance optimization.
* These patterns are compiled once at module initialization for faster matching.
* Use these in performance-critical paths instead of COMMON_ERROR_PATTERNS.
*/
export const COMPILED_ERROR_PATTERNS: ReadonlyArray<
Readonly<CompiledErrorMapping>
> = COMMON_ERROR_PATTERNS.map((mapping) => ({
...mapping,
compiledPattern: getCompiledPattern(mapping.pattern),
}));
/**
* Provider-specific error patterns for external service integration.
* Covers common error formats from AWS, HTTP status codes, databases, and LLM providers.
*/
export const PROVIDER_ERROR_PATTERNS: ReadonlyArray<
Readonly<BaseErrorMapping>
> = [
// AWS Service Errors
{
pattern: /ThrottlingException|TooManyRequestsException/i,
errorCode: JsonRpcErrorCode.RateLimited,
},
{
pattern: /AccessDenied|UnauthorizedOperation/i,
errorCode: JsonRpcErrorCode.Forbidden,
},
{
pattern: /ResourceNotFoundException/i,
errorCode: JsonRpcErrorCode.NotFound,
},
// HTTP Status-based errors
{ pattern: /status code 401/i, errorCode: JsonRpcErrorCode.Unauthorized },
{ pattern: /status code 403/i, errorCode: JsonRpcErrorCode.Forbidden },
{ pattern: /status code 404/i, errorCode: JsonRpcErrorCode.NotFound },
{ pattern: /status code 409/i, errorCode: JsonRpcErrorCode.Conflict },
{ pattern: /status code 429/i, errorCode: JsonRpcErrorCode.RateLimited },
{
pattern: /status code 5\d\d/i,
errorCode: JsonRpcErrorCode.ServiceUnavailable,
},
// Database connection and constraint errors
{
pattern: /ECONNREFUSED|connection refused/i,
errorCode: JsonRpcErrorCode.ServiceUnavailable,
},
{
pattern: /ETIMEDOUT|connection timeout/i,
errorCode: JsonRpcErrorCode.Timeout,
},
{
pattern: /unique constraint|duplicate key/i,
errorCode: JsonRpcErrorCode.Conflict,
},
{
pattern: /foreign key constraint/i,
errorCode: JsonRpcErrorCode.ValidationError,
},
// Supabase-specific errors
{ pattern: /JWT expired/i, errorCode: JsonRpcErrorCode.Unauthorized },
{
pattern: /row level security/i,
errorCode: JsonRpcErrorCode.Forbidden,
},
// OpenRouter/LLM provider errors
{
pattern: /insufficient_quota|quota exceeded/i,
errorCode: JsonRpcErrorCode.RateLimited,
},
{ pattern: /model_not_found/i, errorCode: JsonRpcErrorCode.NotFound },
{
pattern: /context_length_exceeded/i,
errorCode: JsonRpcErrorCode.ValidationError,
},
// Network errors
{ pattern: /ENOTFOUND|DNS/i, errorCode: JsonRpcErrorCode.ServiceUnavailable },
{
pattern: /ECONNRESET|connection reset/i,
errorCode: JsonRpcErrorCode.ServiceUnavailable,
},
];
/**
* Pre-compiled provider error patterns for performance.
*/
export const COMPILED_PROVIDER_PATTERNS: ReadonlyArray<
Readonly<CompiledErrorMapping>
> = PROVIDER_ERROR_PATTERNS.map((mapping) => ({
...mapping,
compiledPattern: getCompiledPattern(mapping.pattern),
}));
</pre></td></tr></table></pre>
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