When running the following code I keep getting a type error of `readable is not async iterable`, I n

When running the following code I keep getting a type error of

readable is not async iterable

readable is not async iterable

readable is not async iterable

readable is not async iterable, I narrowed it down to the

const pdf = await page.pdf();

const pdf = await page.pdf();

const pdf = await page.pdf();

const pdf = await page.pdf(); line but have no clue how I could resolve the issue. Anyone that could help me?

export interface Env {
    MYBROWSER: Fetcher;
}

import puppeteer from '@cloudflare/puppeteer';

export default {
    async fetch(request: Request, env: Env): Promise<Response> {
        const { searchParams } = new URL(request.url);
        let url = searchParams.get('url');

        // skip favicon requests
        if (request.url.includes('/favicon.ico')) return new Response('Not found', { status: 404 });

        if (url) {
            const browser = await puppeteer.launch(env.MYBROWSER);
            const page = await browser.newPage();
            await page.goto(url);

            const pdf = await page.pdf();

            await browser.close();

            if (!pdf) return new Response('No pdf found', { status: 404 });

            return new Response(pdf, {
                headers: {
                    'content-length': pdf.byteLength.toString(),
                    'content-type': 'application/pdf',
                },
            });
        } else {
            return new Response('Please add the ?url=https://example.com/ parameter');
        }
    },
};

export interface Env {
    MYBROWSER: Fetcher;
}

import puppeteer from '@cloudflare/puppeteer';

export default {
    async fetch(request: Request, env: Env): Promise<Response> {
        const { searchParams } = new URL(request.url);
        let url = searchParams.get('url');

        // skip favicon requests
        if (request.url.includes('/favicon.ico')) return new Response('Not found', { status: 404 });

        if (url) {
            const browser = await puppeteer.launch(env.MYBROWSER);
            const page = await browser.newPage();
            await page.goto(url);

            const pdf = await page.pdf();

            await browser.close();

            if (!pdf) return new Response('No pdf found', { status: 404 });

            return new Response(pdf, {
                headers: {
                    'content-length': pdf.byteLength.toString(),
                    'content-type': 'application/pdf',
                },
            });
        } else {
            return new Response('Please add the ?url=https://example.com/ parameter');
        }
    },
};

export interface Env {
    MYBROWSER: Fetcher;
}

import puppeteer from '@cloudflare/puppeteer';

export default {
    async fetch(request: Request, env: Env): Promise<Response> {
        const { searchParams } = new URL(request.url);
        let url = searchParams.get('url');

        // skip favicon requests
        if (request.url.includes('/favicon.ico')) return new Response('Not found', { status: 404 });

        if (url) {
            const browser = await puppeteer.launch(env.MYBROWSER);
            const page = await browser.newPage();
            await page.goto(url);

            const pdf = await page.pdf();

            await browser.close();

            if (!pdf) return new Response('No pdf found', { status: 404 });

            return new Response(pdf, {
                headers: {
                    'content-length': pdf.byteLength.toString(),
                    'content-type': 'application/pdf',
                },
            });
        } else {
            return new Response('Please add the ?url=https://example.com/ parameter');
        }
    },
};

export interface Env {
    MYBROWSER: Fetcher;
}

import puppeteer from '@cloudflare/puppeteer';

export default {
    async fetch(request: Request, env: Env): Promise<Response> {
        const { searchParams } = new URL(request.url);
        let url = searchParams.get('url');

        // skip favicon requests
        if (request.url.includes('/favicon.ico')) return new Response('Not found', { status: 404 });

        if (url) {
            const browser = await puppeteer.launch(env.MYBROWSER);
            const page = await browser.newPage();
            await page.goto(url);

            const pdf = await page.pdf();

            await browser.close();

            if (!pdf) return new Response('No pdf found', { status: 404 });

            return new Response(pdf, {
                headers: {
                    'content-length': pdf.byteLength.toString(),
                    'content-type': 'application/pdf',
                },
            });
        } else {
            return new Response('Please add the ?url=https://example.com/ parameter');
        }
    },
};

Jakob Norlin•9/22/23, 1:50 PM

Since a couple of days my DO keeps throwing this error when running puppeteer.launch(this.env.BROWSER))puppeteer.launch(this.env.BROWSER)).

Unabled to create new browser: code: 429: message: Too many browsers already running

Unabled to create new browser: code: 429: message: Too many browsers already running

I don't seem to be able to reset this. I have tried to force kill the DO with state.blockConcurrencyWhile(() ={ throw new Error("Intentional crash")) }state.blockConcurrencyWhile(() ={ throw new Error("Intentional crash")) } in the constructor, but even that doesn't help.

Is there any way I can take control of the situation and reset the browser state or something?

The browser runs on a 3 minute cron job and has been working flawlessly for several weeks, until it suddenly stopped working a little while back. I don't know exactly when because I don't have good logging set up for this function.

Jakob Norlin•9/22/23, 1:51 PM

Also, UnableUnable is misspelled UnabledUnabled in that error message

Original message was deleted

Jakob Norlin•9/22/23, 5:37 PM

Account ID is 397b462fa783ffd5a2e58c3a8fcd2f0a and worker name is shopping-birdshopping-bird

Vero•9/22/23, 5:45 PM

sure

JJakob Norlin Account ID is 397b462fa783ffd5a2e58c3a8fcd2f0a and worker name is `shopping-bird...

Vero•9/22/23, 5:47 PM

raised

JJakob Norlin Account ID is 397b462fa783ffd5a2e58c3a8fcd2f0a and worker name is `shopping-bird...

Vero•9/22/23, 7:29 PM

Have you opened a support ticket? If not, could you please open it so that they can look into it?

VVero Have you opened a support ticket? If not, could you please open it so that they ...

Jakob Norlin•9/22/23, 7:55 PM

How do I open a proper ticket? When writing it up I'm faced with Customers on our Free plans can only submit tickets for billing, account, and registrar issues.Customers on our Free plans can only submit tickets for billing, account, and registrar issues., even though I'm paying $5 a month for the plan with workers and DO

Vero•9/22/23, 8:59 PM

ok, I'll have to open it for you internally, will give you an update on Monday

Chao•9/23/23, 12:48 AM

can we request for the 2-browser limit to be raised on a per acct basis? if not, will this limit be lifted when you exit beta?

JJakob Norlin How do I open a proper ticket? When writing it up I'm faced with `Customers on o...

Vero•9/25/23, 2:59 PM

DM'd you

nish•9/26/23, 12:08 PM

Hey! I'd love to get access to the browser rendering api. Account: d0128033c48600d1b4c6f7106d4d8e55. Also, is there a tutorial on how to re-use a browser instance by storing it to DO?

Nnish Hey! I'd love to get access to the browser rendering api. Account: d0128033c4860...

Vero•9/27/23, 10:23 AM

enabled

Jürgen B•9/27/23, 1:50 PM

Can you share any plans regarding amount of browser-limitations for free/paid plans when launching?

JJürgen B Can you share any plans regarding amount of browser-limitations for free/paid pl...

tanushree │ Workers PM•9/28/23, 1:47 PM

https://blog.cloudflare.com/running-serverless-puppeteer-workers-durable-objects/

The Cloudflare Blog

Running Serverless Puppeteer with Workers and Durable Objects

We’ve heard from developers that configuring and maintaining their own serverless browser automation systems can be quite painful. The Workers Browser Rendering API solves this

Ttanushree │ Workers PM https://blog.cloudflare.com/running-serverless-puppeteer-workers-durable-objects...

Advany•9/28/23, 2:20 PM

Cool. Saw that my do was used in the post

Ttanushree │ Workers PM https://blog.cloudflare.com/running-serverless-puppeteer-workers-durable-objects...

Unsmart•9/28/23, 2:45 PM

Is the concurrent session pricing based on the peak concurrency during the month or do you have to pre-pay a set concurrency limit (and can you set a concurrency limit if it’s the first option?)

Mackenly•9/28/23, 5:06 PM

And is that $1 each time you spawn a concurrent session or is that per month based on peak?

Mackenly•9/28/23, 6:08 PM

Wouldn't it be more cost effective to just keep a DO with a session alive perpetually? It costs just over $4 to keep a DO alive all month. If you use browser rendering just twice a day you're at $6/m (60*$0.10) in session costs. Setup a queue to process requests handled by that single DO and you never have to worry about having more than one session for an entrire month, correct?

Advany•9/28/23, 6:37 PM

I also dont get the pricing. Would be great to get insights

Hhannes Same question about 10cent session price.. is this per spawned session? How does...

Unsmart•9/28/23, 6:56 PM

The per session would be every time you call puppeteer.launch()puppeteer.launch(). You can reuse the session as explained with DOs in the blogpost which would make it where you can pay per minute with only the initial request warming up the DO costing or anytime the DO gets reset (should mostly code updates / runtime updates)

Advany•9/28/23, 7:07 PM

So then keeping do alive would be cheaper right?

Unsmart•9/28/23, 7:11 PM

depends on your usage levels

DanTheGoodman•9/29/23, 2:13 PM

Does puppeteer stealth work? (ping plz)

Sam•9/29/23, 3:43 PM

Hello. I'd like to get access to the browser rendering api. Account: 1448756027c02d2cb72a056a23538f40

Sam•9/29/23, 3:43 PM

Thank you

Hhannes It's still weird.. does that mean I only pay 10 cents + DO cost for a day (ca. 4...

Mackenly•9/29/23, 5:40 PM

From my understanding it would just be $0.10 every time the DO and browser session is instantiated as long as it's kept alive, so not even every day, as long as the browser instance gets a command at least every 60 seconds. If this is as it seems the pricing really doesn't make sense. Either there's an undocumented time limit on session time or the session pricing should be much lower to incentivize users to create new sessions rather than keep one open. Paying $0.10 once feels like a loophole.

If the best practice is to leave a session open, that should definitely be communicated in the pricing/docs since without considering using a DO, the pricing seems super high (who could justify $0.10 to take a screenshot when you can do the same thing with puppeteer on GCP functions or AWS for much much less).

Unsmart•9/29/23, 8:21 PM

requests != sessions

Unsmart•9/29/23, 8:23 PM

but also 50 sessions would only be $5

captain•9/30/23, 5:09 PM

hey guy's made the request to get into this a while back...i even run a server using pupperteer as part of a workflow process...would love to start playing with this...been developing in workers for 2 years...any updates now that its in beta in getting access to this?

DanTheGoodman•10/6/23, 4:27 PM

How does the concurrent session pricing work? Do I pay $1 to have the ability to run 2 sessions concurrently per month? (se then I can pay $5 for a concurrency of 6) Or is it $1 instead of $0.1 if there is already a session working? The blog post wasn't clear on that.

Aaron Peters•10/9/23, 11:57 AM

The pricing is confusing to me too.
What do I pay if I have one browser instance running all the time and it's constantly doing work (e.g. take screenshot of a page, one after the other .. all the time)
As I read it, that is one browser instance and one (concurrent) session, so the costs are 0 as the Workers paid subscription includes 500 Sessions and 10 Concurrent Sessions. Is this a correct understanding?

phillip•10/14/23, 4:56 PM

Hello, looking for access to the Browser Rendering API. Thanks

Pphillip Hello, looking for access to the Browser Rendering API. Thanks 🙂

zegevlier•10/14/23, 5:41 PM

Post your account ID in here browser-rendering-apiBrowser Rendering API Beta Access

vassbence•10/15/23, 10:10 AM

Hi! Would love start using this API!

4dc10b1f5e6ded482cc85051fbdf49c9

vassbence•10/15/23, 10:11 AM

And so the recommended way to use this service is to keep browsers alive as much as possible with Durable Objects?

Vvassbence Hi! Would love start using this API! 4dc10b1f5e6ded482cc85051fbdf49c9

zegevlier•10/15/23, 10:11 AM

Look one message above yours

vassbence•10/15/23, 10:12 AM

My bad! Posted in the correct thread. My question still stands

vassbence•10/15/23, 10:13 AM

Also, would love to know how one should handle large amounts of traffic, what would be the easiest way to build a queue

Vvassbence And so the recommended way to use this service is to keep browsers alive as much...

zegevlier•10/15/23, 10:14 AM

AFAIK yes, how the pricing works exactly is still a bit unclear, but it seems like there is little harm in keeping sessions open as long as possible to re-use them.

Vvassbence Also, would love to know how one should handle large amounts of traffic, what wo...

zegevlier•10/15/23, 10:14 AM

Probably #queues-beta

vassbence•10/15/23, 10:14 AM

Let's say I'm generating PDF of tickets, and an event goes live, 10k people purchase a ticket. I put each ticketId in the queue which gets consumed by a worker which is calling this API via a DO

vassbence•10/15/23, 10:14 AM

but that means there is literally 1 consumer for the queue running 1 request / sec (or worse if it takes longer)

vassbence•10/15/23, 10:15 AM

Which would be really bad

When running the following code I keep getting a type error of `readable is not async iterable`, I n

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