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AxContentProcessingError

Defined in: https://github.com/ax-llm/ax/blob/9a5a7060a48f9eef46efc680b0cdf6b42bff5df2/src/ax/util/apicall.ts#L372

Error thrown when content processing/transformation fails.

This error wraps underlying failures from content processing services like image-to-text, audio transcription, file text extraction, or URL content fetching. It provides context about what type of content was being processed and at which step.

Example

try {
  await axProcessContentForProvider(content, provider, {
    imageToText: imageService.analyze
  });
} catch (error) {
  if (error instanceof AxContentProcessingError) {
    console.log(`Failed processing ${error.contentType} during ${error.processingStep}`);
    console.log('Original error:', error.originalError.message);
  }
}

Extends

Constructors

Constructor

new AxContentProcessingError(
   originalError: Error, 
   contentType: string, 
   processingStep: string): AxContentProcessingError;

Defined in: https://github.com/ax-llm/ax/blob/9a5a7060a48f9eef46efc680b0cdf6b42bff5df2/src/ax/util/apicall.ts#L385

Creates a new content processing error.

Parameters

ParameterTypeDescription
originalErrorErrorThe underlying error that caused the processing failure
contentTypestringThe type of content being processed (e.g., ‘image’, ‘audio’, ‘file’)
processingStepstringThe specific processing step that failed (e.g., ‘vision analysis’, ‘transcription’)

Returns

AxContentProcessingError

Overrides

Error.constructor

Properties

PropertyModifierTypeDescriptionInherited from
cause?publicunknown-Error.cause
contentTypereadonlystringThe type of content being processed (e.g., ‘image’, ‘audio’, ‘file’)-
errorIdreadonlystringUnique identifier for this error instance-
messagepublicstring-Error.message
namepublicstring-Error.name
originalErrorreadonlyErrorThe underlying error that caused the processing failure-
processingStepreadonlystringThe specific processing step that failed (e.g., ‘vision analysis’, ‘transcription’)-
stack?publicstring-Error.stack
timestampreadonlystringISO timestamp when the error occurred-
stackTraceLimitstaticnumberThe Error.stackTraceLimit property specifies the number of stack frames collected by a stack trace (whether generated by new Error().stack or Error.captureStackTrace(obj)). The default value is 10 but may be set to any valid JavaScript number. Changes will affect any stack trace captured after the value has been changed. If set to a non-number value, or set to a negative number, stack traces will not capture any frames.Error.stackTraceLimit

Methods

toString()

toString(): string;

Defined in: https://github.com/ax-llm/ax/blob/9a5a7060a48f9eef46efc680b0cdf6b42bff5df2/src/ax/util/apicall.ts#L398

Returns a string representation of an object.

Returns

string


captureStackTrace()

static captureStackTrace(targetObject: object, constructorOpt?: Function): void;

Defined in: node_modules/@types/node/globals.d.ts:145

Creates a .stack property on targetObject, which when accessed returns a string representing the location in the code at which Error.captureStackTrace() was called.

const myObject = {};
Error.captureStackTrace(myObject);
myObject.stack;  // Similar to `new Error().stack`

The first line of the trace will be prefixed with ${myObject.name}: ${myObject.message}.

The optional constructorOpt argument accepts a function. If given, all frames above constructorOpt, including constructorOpt, will be omitted from the generated stack trace.

The constructorOpt argument is useful for hiding implementation details of error generation from the user. For instance:

function a() {
  b();
}

function b() {
  c();
}

function c() {
  // Create an error without stack trace to avoid calculating the stack trace twice.
  const { stackTraceLimit } = Error;
  Error.stackTraceLimit = 0;
  const error = new Error();
  Error.stackTraceLimit = stackTraceLimit;

  // Capture the stack trace above function b
  Error.captureStackTrace(error, b); // Neither function c, nor b is included in the stack trace
  throw error;
}

a();

Parameters

ParameterType
targetObjectobject
constructorOpt?Function

Returns

void

Inherited from

Error.captureStackTrace

prepareStackTrace()

static prepareStackTrace(err: Error, stackTraces: CallSite[]): any;

Defined in: node_modules/@types/node/globals.d.ts:149

See

https://v8.dev/docs/stack-trace-api#customizing-stack-traces

Parameters

ParameterType
errError
stackTracesCallSite[]

Returns

any

Inherited from

Error.prepareStackTrace