errobj/index.mjs

☠️ Serialise errors to literal (JSONable) object

var __defProp = Object.defineProperty;
var __getOwnPropSymbols = Object.getOwnPropertySymbols;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __propIsEnum = Object.prototype.propertyIsEnumerable;
var __defNormalProp = (obj, key, value) => key in obj ? __defProp(obj, key, { enumerable: true, configurable: true, writable: true, value }) : obj[key] = value;
var __spreadValues = (a, b) => {
  for (var prop in b || (b = {}))
    if (__hasOwnProp.call(b, prop))
      __defNormalProp(a, prop, b[prop]);
  if (__getOwnPropSymbols)
    for (var prop of __getOwnPropSymbols(b)) {
      if (__propIsEnum.call(b, prop))
        __defNormalProp(a, prop, b[prop]);
    }
  return a;
};

// src/lib/props/index.ts
var FIELDS = [
  "message",
  "stack",
  "code",
  "name",
  "fileName",
  "lineNumber",
  "columnNumber",
  "address",
  "dest",
  "errno",
  "info",
  "path",
  "port",
  "syscall",
  "opensslErrorStack",
  "function",
  "library",
  "reason",
  "details",
  "description"
];
var props = (error) => Array.from(new Set(Object.getOwnPropertyNames(error).concat(FIELDS)));

// src/lib/verify/index.ts
function verify(error) {
  if (!(error instanceof Error)) {
    throw new RangeError(
      `Expected an error. Insead got ${typeof error}: ${error}`
    );
  }
}

// src/lib/parseStack/index.ts
import errorStackParser from "error-stack-parser";
function parseStack(error, { offset, parsedStack } = {}) {
  try {
    const parsed = errorStackParser.parse(error);
    if (typeof offset === "number" && offset > 0) {
      parsed.splice(0, offset);
    }
    if (parsedStack) {
      parsed.length = Math.min(parsed.length, parsedStack);
    }
    return parsed;
  } catch (_) {
    return [{}];
  }
}

// src/index.ts
function errobj(error, enrichment = {}, { offset = 0, parsedStack = 0 } = {}) {
  verify(error);
  if (typeof error.toJSON === "function") {
    error = error.toJSON();
  }
  const parsed = parseStack(error, { offset, parsedStack });
  parsedStack && Object.assign(error, { parsedStack: parsed });
  const cause = getCause(error);
  return Object.assign(
    props(error).reduce(
      (accumulator, key) => error[key] ? Object.assign(accumulator, { [key]: error[key] }) : accumulator,
      __spreadValues({}, parsed[0])
    ),
    cause ? { cause } : {},
    enrichment
  );
}
function getCause(error) {
  let { cause } = error;
  if (cause instanceof Error) {
    if (cause === error) {
      cause = "[Circular]";
    } else {
      cause = errobj(cause);
    }
  }
  return typeof cause === "undefined" ? cause : String(cause);
}
export {
  errobj
};
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