Method #parseFetchOptions

impit-node/index.wrapper.js:217–260

(resource, init)

    }

    async #parseFetchOptions(resource, init) {
        let url;
        let options = { ...init };

        if (resource instanceof Request) {
            url = resource.url;
            options = {
                method: resource.method,
                headers: resource.headers,
                body: resource.body,
                ...init,
            };
            if (!('redirect' in options) && resource.redirect !== 'follow') {
                options.redirect = resource.redirect;
            }
        } else if (resource.toString) {
            url = resource.toString();
        } else {
            url = resource;
        }

        options.headers = canonicalizeHeaders(options?.headers);

        if (options?.body) {
            const { body: requestBody, type } = await this.#serializeBody(options.body);
            options.body = requestBody;
            if (type && !options.headers.some(([key]) => key.toLowerCase() === 'content-type')) {
                options.headers.push(['Content-Type', type]);
            }
        } else {
            delete options.body;
        }

        return {
            url: url,
            method: options.method,
            headers: options.headers,
            body: options.body,
            timeout: options.timeout,
            forceHttp3: options.forceHttp3,
            signal: options.signal,
            redirect: options.redirect,
        };
    }

    async fetch(resource, init) {
        const { url: initialUrl, signal, redirect, ...options } = await this.#parseFetchOptions(resource, init);