| 46 | } |
| 47 | |
| 48 | export function normalizeError(error: unknown): NormalizedError { |
| 49 | if (error instanceof Error) { |
| 50 | const meta = error as Error & { |
| 51 | statusCode?: unknown; |
| 52 | status?: unknown; |
| 53 | code?: unknown; |
| 54 | }; |
| 55 | const status = |
| 56 | typeof meta.statusCode === 'number' |
| 57 | ? meta.statusCode |
| 58 | : typeof meta.status === 'number' |
| 59 | ? meta.status |
| 60 | : 500; |
| 61 | return { |
| 62 | status, |
| 63 | code: typeof meta.code === 'string' ? meta.code : undefined, |
| 64 | message: error.message || 'Internal server error', |
| 65 | errorName: error.name || 'Error', |
| 66 | }; |
| 67 | } |
| 68 | |
| 69 | // Plain object thrown (e.g. `throw { statusCode: 400, message: '...' }`). |
| 70 | if (typeof error === 'object' && error !== null) { |
| 71 | const e = error as Record<string, unknown>; |
| 72 | return { |
| 73 | status: typeof e.statusCode === 'number' ? e.statusCode : 500, |
| 74 | code: typeof e.code === 'string' ? e.code : undefined, |
| 75 | message: |
| 76 | typeof e.message === 'string' ? e.message : 'Internal server error', |
| 77 | errorName: typeof e.name === 'string' ? e.name : 'Error', |
| 78 | }; |
| 79 | } |
| 80 | |
| 81 | if (typeof error === 'string') { |
| 82 | return { status: 500, code: undefined, message: error, errorName: 'Error' }; |
| 83 | } |
| 84 | |
| 85 | // null, undefined, number, boolean, symbol, bigint |
| 86 | return { |
| 87 | status: 500, |
| 88 | code: undefined, |
| 89 | message: 'Internal server error', |
| 90 | errorName: 'Error', |
| 91 | }; |
| 92 | } |