File size: 1,800 Bytes
f0634fb | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 | import { isRecord } from './utils';
const DIRECT_ERROR_KEYS = ['error_description', 'message', 'detail'] as const;
const NESTED_ERROR_KEYS = ['message', 'error_description', 'detail', 'code', 'type'] as const;
export function extractApiErrorMessage(value: unknown): string | undefined {
if (Array.isArray(value)) {
for (const item of value) {
const message = extractApiErrorMessage(item);
if (message !== undefined) return message;
}
return undefined;
}
if (!isRecord(value)) return undefined;
for (const key of DIRECT_ERROR_KEYS) {
const message = stringField(value, key);
if (message !== undefined) return message;
}
const error = value['error'];
const errorString = nonEmptyString(error);
if (errorString !== undefined) return errorString;
if (isRecord(error)) {
for (const key of NESTED_ERROR_KEYS) {
const message = stringField(error, key);
if (message !== undefined) return message;
}
}
const errors = value['errors'];
if (Array.isArray(errors)) {
for (const item of errors) {
const message = extractApiErrorMessage(item);
if (message !== undefined) return message;
}
}
return undefined;
}
export async function readApiErrorMessage(
response: Response,
fallback: string,
): Promise<string> {
let parsed: unknown;
try {
parsed = await response.json();
} catch {
return fallback;
}
return extractApiErrorMessage(parsed) ?? fallback;
}
function stringField(record: Record<string, unknown>, key: string): string | undefined {
return nonEmptyString(record[key]);
}
function nonEmptyString(value: unknown): string | undefined {
if (typeof value !== 'string') return undefined;
const trimmed = value.trim();
return trimmed.length > 0 ? trimmed : undefined;
}
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