X402InvalidConfigError

Defined in: src/x402/errors.ts:73

Thrown when an x402 SDK construction-time configuration is invalid: an unknown asset.kind, a known asset id that kawasekit does not ship a domain for, missing required fields on an unsafeOverride, etc.

Distinct from X402InvalidPayloadError (which describes wire-format problems): config errors are integrator bugs, not adversarial inputs.

Example

import { createX402PaymentSigner, X402InvalidConfigError } from "kawasekit";

try {
  createX402PaymentSigner({
    network: "testnet",
    account,
    // @ts-expect-error — kind: "foo" is not a known kind
    asset: { kind: "foo" },
  });
} catch (error) {
  if (error instanceof X402InvalidConfigError) {
    console.error(`${error.field}: ${error.reason}`);
  }
}

Extends

• Error

Constructors

Constructor

new X402InvalidConfigError(field, reason, options?): X402InvalidConfigError

Defined in: src/x402/errors.ts:79

Parameters

field

string

reason

string

options?

cause?

unknown

Returns

X402InvalidConfigError

Overrides

Error.constructor

Properties

cause?

optional cause?: unknown

Defined in: node_modules/.pnpm/typescript@6.0.3/node_modules/typescript/lib/lib.es2022.error.d.ts:24

Inherited from

Error.cause

---

field

readonly field: string

Defined in: src/x402/errors.ts:75

Logical name of the config field that failed (e.g. "asset").

---

message

message: string

Defined in: node_modules/.pnpm/typescript@6.0.3/node_modules/typescript/lib/lib.es5.d.ts:1075

Inherited from

Error.message

---

name

name: string

Defined in: node_modules/.pnpm/typescript@6.0.3/node_modules/typescript/lib/lib.es5.d.ts:1074

Inherited from

Error.name

---

reason

readonly reason: string

Defined in: src/x402/errors.ts:77

Short machine-readable reason code.

---

stack?

optional stack?: string

Defined in: node_modules/.pnpm/typescript@6.0.3/node_modules/typescript/lib/lib.es5.d.ts:1076

Inherited from

Error.stack

---

stackTraceLimit

static stackTraceLimit: number

Defined in: node_modules/.pnpm/@types+node@22.19.19/node_modules/@types/node/globals.d.ts:68

The 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.

Inherited from

Error.stackTraceLimit

Methods

captureStackTrace()

static captureStackTrace(targetObject, constructorOpt?): void

Defined in: node_modules/.pnpm/@types+node@22.19.19/node_modules/@types/node/globals.d.ts:52

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

targetObject

object

constructorOpt?

Function

Returns

void

Inherited from

Error.captureStackTrace

---

prepareStackTrace()

static prepareStackTrace(err, stackTraces): any

Defined in: node_modules/.pnpm/@types+node@22.19.19/node_modules/@types/node/globals.d.ts:56

Parameters

err

Error

stackTraces

CallSite[]

Returns

any

See

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

Inherited from

Error.prepareStackTrace