Function assertDownloadResponseOk

src/app/apiClient.ts:184–230

(
    response: Response,
    fallbackMessage = 'Download failed',
)

 * error envelope on failure.  Call this before reading `response.blob()`.
 */
export async function assertDownloadResponseOk(
    response: Response,
    fallbackMessage = 'Download failed',
): Promise<void> {
    const contentType = response.headers.get('content-type') ?? '';

    if (contentType.includes('application/json')) {
        let body: any;
        try {
            body = await response.json();
        } catch {
            throw new ApiRequestError(
                { code: 'PARSE_ERROR', message: fallbackMessage, retry: false },
                response.status,
            );
        }

        if (body.status === 'error') {
            if (body.error && typeof body.error === 'object' && body.error.code) {
                throw new ApiRequestError(body.error as ApiError, response.status);
            }
            throw new ApiRequestError(
                { code: 'MALFORMED_ERROR', message: fallbackMessage, retry: false },
                response.status,
            );
        }

        if (!response.ok) {
            throw new ApiRequestError(
                { code: 'HTTP_ERROR', message: `HTTP ${response.status}`, retry: false },
                response.status,
            );
        }

        throw new ApiRequestError(
            { code: 'MALFORMED_DOWNLOAD_RESPONSE', message: fallbackMessage, retry: false },
            response.status,
        );
    }

    if (!response.ok) {
        throw new ApiRequestError(
            { code: 'HTTP_ERROR', message: `HTTP ${response.status}`, retry: false },
            response.status,
        );
    }
}

/**
 * Streaming (NDJSON) API request.