Function create

src/fetch.ts:102–143

()

        const fetch = inputFetch ?? window.fetch;
        const onopen = inputOnOpen ?? defaultOnOpen;
        async function create() {
            curRequestController = new AbortController();
            try {
                const response = await fetch(input, {
                    ...rest,
                    headers,
                    signal: curRequestController.signal,
                });

                await onopen(response);
                
                await getBytes(response.body, getLines(getMessages(id => {
                    if (id) {
                        // store the id and send it back on the next retry:
                        headers[LastEventId] = id;
                    } else {
                        // don't send the last-event-id header anymore:
                        delete headers[LastEventId];
                    }
                }, retry => {
                    retryInterval = retry;
                }, onmessage)));

                onclose?.();
                dispose();
                resolve();
            } catch (err) {
                if (!curRequestController.signal.aborted) {
                    // if we haven't aborted the request ourselves:
                    try {
                        // check if we need to retry:
                        const interval: any = onerror?.(err) ?? retryInterval;
                        window.clearTimeout(retryTimer);
                        retryTimer = window.setTimeout(create, interval);
                    } catch (innerErr) {
                        // we should not retry anymore:
                        dispose();
                        reject(innerErr);
                    }
                }
            }
        }

        create();
    });