Function ensureUpstreamOk

shared/error.ts:68–84

(
    response: Response,
    requestUrl: string | URL,
)

}

export async function ensureUpstreamOk(
    response: Response,
    requestUrl: string | URL,
): Promise<Response> {
    if (response.ok) return response;
    const responseBody = await response.text();
    const rawMessage =
        extractUpstreamMessage(responseBody) ||
        getDefaultErrorMessage(response.status);
    throw new UpstreamError(remapUpstreamStatus(response.status), {
        message: truncateString(rawMessage, MAX_ERROR_MESSAGE_LENGTH) ?? "",
        requestUrl:
            typeof requestUrl === "string" ? new URL(requestUrl) : requestUrl,
        upstreamStatus: response.status,
        responseBody,
    });
}

function extractUpstreamMessage(body: string): string {
    try {