Call and await response.buffer() on a Puppeteer HTTPResponse:
const body = await response.buffer();This gives you the response body as a Node.js Buffer in memory. To save it to disk, write that Buffer with Node.js filesystem APIs.
Get a response before reading its body
You need a Puppeteer HTTPResponse object first. For example, page.goto() resolves to the response for the navigation:
const response = await page.goto('https://example.com');
if (!response) {
throw new Error('Navigation did not produce an HTTP response');
}
const body = await response.buffer();Other Puppeteer operations can also provide an HTTPResponse. Once you have the relevant response, call buffer() and await its promise before using the returned value.
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- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
Save the Buffer to a file
buffer() retrieves the body; it does not write a file. Use Node.js node:fs/promises to persist the result. This complete example writes the navigation response body to response.bin:
const response = await page.goto('https://example.com');
if (!response) {
throw new Error('Navigation did not produce an HTTP response');
}
const body = await response.buffer();
await import('node:fs/promises').then(({ writeFile }) =>
writeFile('response.bin', body)
);If your project uses CommonJS, the equivalent filesystem import is const { writeFile } = require('node:fs/promises');; then call await writeFile('response.bin', body). Choose an extension and destination appropriate for the content you expect.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
Check the response separately from reading its body
Obtaining a Buffer does not decide whether the HTTP request succeeded. Puppeteer’s HTTPResponse also provides status() and ok(). Check these when your application needs to reject unsuccessful responses:
const response = await page.goto('https://example.com');
if (!response) {
throw new Error('Navigation did not produce an HTTP response');
}
if (!response.ok()) {
throw new Error(`HTTP ${response.status()}`);
}
const body = await response.buffer();The response object also exposes headers(), request(), and url() for metadata and request context. These checks are separate from reading the body.
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Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Choose the body format you need
| Method | Result | Use it when |
|---|---|---|
buffer() |
Promise<Buffer> |
You need a Node.js Buffer of the response body. |
content() |
Promise<Uint8Array> |
A typed array is suitable for your code. |
text() |
Decoded UTF-8 text | You need a string; it throws if the content is not UTF-8. |
json() |
Parsed JSON value | You need parsed JSON; it throws if the body cannot be parsed by JSON.parse. |
Use buffer() when your next step expects a Buffer, such as writing bytes to a file. Select a text or JSON method only when that decoding or parsing is what you want.
Know what the Buffer does—and does not—guarantee
Puppeteer warns that the browser may re-encode the response body based on HTTP headers or other heuristics. Therefore, do not assume that the Buffer is guaranteed to be the untouched bytes transmitted on the wire. If exact preservation of a particular representation matters, verify that Puppeteer’s browser-provided body is suitable for that use case. See the Puppeteer HTTPResponse.buffer() reference.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Troubleshoot common problems
responseis null: The operation did not provide an HTTP response object. Check how the response is obtained before callingbuffer().- The body is used before it is ready:
buffer()is asynchronous. Await it, or handle its promise before passing the result to another operation. - The file was not created: Retrieving a Buffer does not persist it. Call a filesystem write operation such as
writeFile(), and ensure the destination path is usable by the process. - The response contains an error page: Reading the body does not validate the HTTP status. Check
ok()orstatus()before treating the body as a successful result. - Bytes differ from an expected wire representation: Browser handling can re-encode the body. Puppeteer does not promise the returned Buffer is always untouched wire data.
text()orjson()fails: The body may not be valid UTF-8 text or parseable JSON, respectively. Usebuffer()when you need the body bytes instead.
Or skip the browser setup
If your goal is a website screenshot rather than retrieving an HTTP response body, ScreenshotNeo offers a screenshot API. For example, this cURL request saves a screenshot:
Quick Recap
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webpSee the ScreenshotNeo API documentation for request options. Cookie banners, popups, and chat widgets are removed before capture; bot checks, blank pages, and failed loads are not billed. An MCP server lets AI agents take screenshots, and 1,000 screenshots a month are free with no card; paid plans start at $5 for 3,000. Sign up for ScreenshotNeo.
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