46 lines
1.4 KiB
TypeScript
46 lines
1.4 KiB
TypeScript
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interface ValidationIssue {
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loc?: unknown;
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msg?: unknown;
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}
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function validationIssueMessage(issue: ValidationIssue): string | null {
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if (typeof issue.msg !== "string" || !issue.msg) return null;
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if (!Array.isArray(issue.loc)) return issue.msg;
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const path = issue.loc
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.filter((part) => part !== "body")
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.filter((part): part is string | number =>
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["string", "number"].includes(typeof part),
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)
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.join(".");
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return path ? `${path}: ${issue.msg}` : issue.msg;
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}
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export function formatApiError(payload: unknown, fallback: string): string {
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if (!payload || typeof payload !== "object") return fallback;
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const detail = (payload as { detail?: unknown }).detail;
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if (typeof detail === "string" && detail) return detail;
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if (Array.isArray(detail)) {
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const messages = detail
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.map((issue) =>
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issue && typeof issue === "object"
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? validationIssueMessage(issue as ValidationIssue)
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: null,
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)
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.filter((message): message is string => Boolean(message));
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if (messages.length) return messages.join("; ");
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}
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if (detail && typeof detail === "object") {
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const message = validationIssueMessage(detail as ValidationIssue);
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if (message) return message;
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}
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return fallback;
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}
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export async function responseErrorMessage(
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response: Response,
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fallback: string,
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): Promise<string> {
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const payload: unknown = await response.json().catch(() => null);
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return formatApiError(payload, fallback);
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}
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