Hey guys, I was wondering, what is the best way to handle multi-tenant apps? I have a worker that ea

埃

Hello everyone, I want to write a function that downloads something from one place and sends it to another, but I don't know how to implement such code in worker?
Uploading URLs requires multipart/form-data, but I am concerned that the worker does not have enough memory, so I want to implement it this way.
nodejs

let download = await fetch('http://someurltoDownload');
let formdata = new FormData();
formdata.append('file', download.body);

await fetch('http://someurltoUpload', {
    method: 'POST',
    body: formdata
});

let download = await fetch('http://someurltoDownload');
let formdata = new FormData();
formdata.append('file', download.body);

await fetch('http://someurltoUpload', {
    method: 'POST',
    body: formdata
});

let download = await fetch('http://someurltoDownload');
let formdata = new FormData();
formdata.append('file', download.body);

await fetch('http://someurltoUpload', {
    method: 'POST',
    body: formdata
});

let download = await fetch('http://someurltoDownload');
let formdata = new FormData();
formdata.append('file', download.body);

await fetch('http://someurltoUpload', {
    method: 'POST',
    body: formdata
});

worker

let d = await fetch('test');
if (d.body)
    formData.append('test', d.body);

let d = await fetch('test');
if (d.body)
    formData.append('test', d.body);

let d = await fetch('test');
if (d.body)
    formData.append('test', d.body);

let d = await fetch('test');
if (d.body)
    formData.append('test', d.body);

And the error message is this. Is there a way to achieve the same effect in Node.js?

TS2769: No overload matches this call.
Overload 1 of 2, (name: string, value: string): void, gave the following error.
Argument of type ReadableStream<any> is not assignable to parameter of type string
Overload 2 of 2,
(name: string, value: Blob, filename?: string | undefined): void
, gave the following error.
Argument of type ReadableStream<any> is not assignable to parameter of type Blob
Type ReadableStream<any> is missing the following properties from type Blob: size, type, slice, arrayBuffer, and 3 more.

TS2769: No overload matches this call.
Overload 1 of 2, (name: string, value: string): void, gave the following error.
Argument of type ReadableStream<any> is not assignable to parameter of type string
Overload 2 of 2,
(name: string, value: Blob, filename?: string | undefined): void
, gave the following error.
Argument of type ReadableStream<any> is not assignable to parameter of type Blob
Type ReadableStream<any> is missing the following properties from type Blob: size, type, slice, arrayBuffer, and 3 more.

TS2769: No overload matches this call.
Overload 1 of 2, (name: string, value: string): void, gave the following error.
Argument of type ReadableStream<any> is not assignable to parameter of type string
Overload 2 of 2,
(name: string, value: Blob, filename?: string | undefined): void
, gave the following error.
Argument of type ReadableStream<any> is not assignable to parameter of type Blob
Type ReadableStream<any> is missing the following properties from type Blob: size, type, slice, arrayBuffer, and 3 more.

TS2769: No overload matches this call.
Overload 1 of 2, (name: string, value: string): void, gave the following error.
Argument of type ReadableStream<any> is not assignable to parameter of type string
Overload 2 of 2,
(name: string, value: Blob, filename?: string | undefined): void
, gave the following error.
Argument of type ReadableStream<any> is not assignable to parameter of type Blob
Type ReadableStream<any> is missing the following properties from type Blob: size, type, slice, arrayBuffer, and 3 more.

S

slitherrr•8/20/25, 4:37 PM

i feel like i'm missing an obvious button or filter somewhere, but i can't find any of the logs corresponding to the dashboard "errors by invocation status" graph, when i drill down into the logs for the specific worker all i see are non-exceptional log lines and no filters that seem to correspond to "worker threw error type 1101" etc

S

slitherrr•8/20/25, 5:16 PM

ok found one haha i'm not sure why the one worker didn't have an exceptional invocation in a time period i expected one but i was able to diagnose the specific problem i was trying to diagnose

A

Ashkan•8/20/25, 6:40 PM

Please Help me,

Does Cloudflared support gRPC for tunneling? I mean I have a local gRPC service in local machine and want to tunnel traffics via Cloudflare Tunnel

Does Cloudflared support gRPC for tunneling? I mean I have a local gRPC service in local machine and want to tunnel traffics via Cloudflare Tunnel

Does Cloudflared support gRPC for tunneling? I mean I have a local gRPC service in local machine and want to tunnel traffics via Cloudflare Tunnel

Does Cloudflared support gRPC for tunneling? I mean I have a local gRPC service in local machine and want to tunnel traffics via Cloudflare Tunnel

AAshkan Please Help me, `Does Cloudflared support gRPC for tunneling? I mean I have a lo...

A

Ashkan•8/20/25, 6:50 PM

Cloudflare Tunnel supports gRPC traffic via private subnet routing. Public hostname deployments are not currently supported.

I

iotaspencer•8/20/25, 7:45 PM

so you answered your own question

Ssurgery18 Hey guys, I was wondering, what is the best way to handle multi-tenant apps? I h...

F

flof.fly•8/20/25, 10:09 PM

What have you end-up doing?

Fflof.fly What have you end-up doing?

S

surgery18OP•8/20/25, 10:54 PM

Nothing yet. Trying to see what other people have done or what an official way to handle multi-tenant in cloudflare is.

K

killua99•8/21/25, 9:01 AM

question: the PDF api endpoint support custom fonts ?

A

amanzad•8/21/25, 1:22 PM

What’s the best way of handling auth with Nextjs using D1 as db? I’m gonna host Nextjs web app on vercel but the db api etc with cloudflare

S

sodepr•8/22/25, 5:11 AM

Hello everyone,

I’m a bit unclear about the differences between Cache Rules, caching with fetch, and the Cache API in Workers.

Could someone please explain how they differ?

Thank you in advance!

Ssodepr Hello everyone, I’m a bit unclear about the differences between Cache Rules, ca...

C

Chaika•8/26/25, 8:56 PM

Cache Rules apply to all requests but also Worker subrequests/fetches and can be used to override setting. If your subrequest matches one, it'll apply to it.
Fetch has options to further override cache options, for more specific settings then Cache Rules and such

Cache API is a way to directly talk to cache, insert requests and match, but Cache API Does not supported Tiered Caching unlike normal fetch

K

kcbrewron•8/27/25, 5:27 PM

I'm not sure which group to put this in. I'm building a Svelte kit worker (not on pages) with a durable objects. The documentation makes this seem possible but the details object class is not exported during the build. I feel like I'm resigned to build these as separate pieces and use a binding to connect them. Is that true? Under pages to workers migration docs it looks like I shouldn't have to do this

CChaika Cache Rules apply to all requests but also Worker subrequests/fetches and can be...

S

sodepr•8/28/25, 12:13 PM

I got it, thank you

C

CDW•8/31/25, 8:41 AM

Hi!

C

CDW•8/31/25, 8:42 AM

I need to have a CDN for my project, but, I dont have any proper guide, can anyone tell me? how to do it so? Like i prefer the free plan, without any payment method.

C

CDW•8/31/25, 8:42 AM

Is payment method is compoulsory?

C

CDW•8/31/25, 8:42 AM

CCDW I need to have a CDN for my project, but, I dont have any proper guide, can anyo...

K

krupanjac•8/31/25, 8:58 PM

You have many free CDN on the web. CF CDN is not free.

Kkrupanjac You have many free CDN on the web. CF CDN is not free.

H

Hello, I’m Allie!•9/1/25, 12:22 AM

What?

HHello, I’m Allie!What?

K

krupanjac•9/1/25, 6:47 AM

I didn't clarify why I said it in this manner. Guy is looking to host his stuff somewhere. Maybe images/videos dynamic upload and that stuff.

Or I misunderstood him, anyways to clarify myself CF CDN (caching) is free. Media hosting in CF ain't .

P

Proman4713 🇵🇸•9/1/25, 9:46 AM

Okay this is really frustrating

P

Proman4713 🇵🇸•9/1/25, 9:46 AM

https://developers.cloudflare.com/workers-ai/models/llama-4-scout-17b-16e-instruct/ take a look at this

Cloudflare Docs

llama-4-scout-17b-16e-instruct

Meta's Llama 4 Scout is a 17 billion parameter model with 16 experts that is natively multimodal. These models leverage a mixture-of-experts architecture to offer industry-leading performance in text and image understanding.

P

Proman4713 🇵🇸•9/1/25, 9:46 AM

and tell me, if this matches the required types:

tools: [
    {
        name: "getClassRoster",
        description: "Returns all student objects for that class",
        parameters: {
            type: "object",
            properties: {
                grade: {
                    type: "integer",
                    description: "The grade (e.g. 10) of the needed class. Between 1 and 12, inclusive."
                },
                classLetter: {
                    type: "string",
                    description: "The letter (e.g. A) of the needed class. Between A and Z, inclusive."
                }
            },
            required: ["grade", "classLetter"]
        }
    }
]

tools: [
    {
        name: "getClassRoster",
        description: "Returns all student objects for that class",
        parameters: {
            type: "object",
            properties: {
                grade: {
                    type: "integer",
                    description: "The grade (e.g. 10) of the needed class. Between 1 and 12, inclusive."
                },
                classLetter: {
                    type: "string",
                    description: "The letter (e.g. A) of the needed class. Between A and Z, inclusive."
                }
            },
            required: ["grade", "classLetter"]
        }
    }
]

tools: [
    {
        name: "getClassRoster",
        description: "Returns all student objects for that class",
        parameters: {
            type: "object",
            properties: {
                grade: {
                    type: "integer",
                    description: "The grade (e.g. 10) of the needed class. Between 1 and 12, inclusive."
                },
                classLetter: {
                    type: "string",
                    description: "The letter (e.g. A) of the needed class. Between A and Z, inclusive."
                }
            },
            required: ["grade", "classLetter"]
        }
    }
]

tools: [
    {
        name: "getClassRoster",
        description: "Returns all student objects for that class",
        parameters: {
            type: "object",
            properties: {
                grade: {
                    type: "integer",
                    description: "The grade (e.g. 10) of the needed class. Between 1 and 12, inclusive."
                },
                classLetter: {
                    type: "string",
                    description: "The letter (e.g. A) of the needed class. Between A and Z, inclusive."
                }
            },
            required: ["grade", "classLetter"]
        }
    }
]

P

Proman4713 🇵🇸•9/1/25, 9:47 AM

it does, right? i get an error saying invalid input:

[wrangler-UserWorker:error] AiError: 8001: Invalid input
    at Ai._parseError (cloudflare-internal:ai-api:176:24)
    at async Ai.run (cloudflare-internal:ai-api:154:19)
    at async runWorker (file:///home/proman4713/JavaScript%20Projects/MawjoodAPI/src/index.js:50:20)

[wrangler-UserWorker:error] AiError: 8001: Invalid input
    at Ai._parseError (cloudflare-internal:ai-api:176:24)
    at async Ai.run (cloudflare-internal:ai-api:154:19)
    at async runWorker (file:///home/proman4713/JavaScript%20Projects/MawjoodAPI/src/index.js:50:20)

[wrangler-UserWorker:error] AiError: 8001: Invalid input
    at Ai._parseError (cloudflare-internal:ai-api:176:24)
    at async Ai.run (cloudflare-internal:ai-api:154:19)
    at async runWorker (file:///home/proman4713/JavaScript%20Projects/MawjoodAPI/src/index.js:50:20)

[wrangler-UserWorker:error] AiError: 8001: Invalid input
    at Ai._parseError (cloudflare-internal:ai-api:176:24)
    at async Ai.run (cloudflare-internal:ai-api:154:19)
    at async runWorker (file:///home/proman4713/JavaScript%20Projects/MawjoodAPI/src/index.js:50:20)

P

Proman4713 🇵🇸•9/1/25, 9:47 AM

so i disabled log sanitisation and set log-level to debug from wrangler (the cloudflare CLI)

P

Proman4713 🇵🇸•9/1/25, 9:47 AM

and THIS was the response from the AI request (decoded from base64):

{"httpCode":400,"internalCode":8001,"message":"AiError: AiError: Invalid input (95e650b5-30fd-461e-a800-95d18c5295ef)","name":"AiError","skipSentry":true,"description":"Invalid input"}

{"httpCode":400,"internalCode":8001,"message":"AiError: AiError: Invalid input (95e650b5-30fd-461e-a800-95d18c5295ef)","name":"AiError","skipSentry":true,"description":"Invalid input"}

{"httpCode":400,"internalCode":8001,"message":"AiError: AiError: Invalid input (95e650b5-30fd-461e-a800-95d18c5295ef)","name":"AiError","skipSentry":true,"description":"Invalid input"}

{"httpCode":400,"internalCode":8001,"message":"AiError: AiError: Invalid input (95e650b5-30fd-461e-a800-95d18c5295ef)","name":"AiError","skipSentry":true,"description":"Invalid input"}

P

Proman4713 🇵🇸•9/1/25, 9:47 AM

i literally can't find a person on the internet who encountered either 8001 or 95e650b5-30fd-461e-a800-95d18c5295ef

P

Proman4713 🇵🇸•9/1/25, 9:48 AM

so someone please, please tell me what on earth is actually going on

P

Proman4713 🇵🇸•9/1/25, 9:51 AM

well, apparently some people on this discord server encountered this error

P

Proman4713 🇵🇸•9/1/25, 9:51 AM

but no solutions have been provided

PProman4713 🇵🇸and tell me, if this matches the required types: ```js tools: [ { na...

P

Proman4713 🇵🇸•9/1/25, 10:37 AM

i added type: function here and it still didn't work

Ssurgery18 Hey guys, I was wondering, what is the best way to handle multi-tenant apps? I h...

S

surgery18OP•9/2/25, 11:43 PM

Anyone have any ideas for this? Still wanting to know the best way to handle this. Thanks.

L

Lou.•9/4/25, 8:39 AM

I have a nextjs 15.3.5 project being hosted on cloudflare pages. I am trying to get SSR working correctly... Can someome explain to me why using react-cache is needed to get this working?

import { cache } from "react";

export const getSettings = cache(async (): Promise<Settings | null> => {
  try {
    const response = await fetch(
      "https://cdn.[CENSORED]",
      { 
        cache: "no-store" // Keep this for Next.js 15 compatibility
      }
    );

    if (!response.ok) {
      throw new Error(`Failed to fetch settings: ${response.status}`);
    }

    const settings: Settings = await response.json();
    return settings;
  } catch (err) {
    console.error("Error loading settings:", err);
    return null;
  }
});

import { cache } from "react";

export const getSettings = cache(async (): Promise<Settings | null> => {
  try {
    const response = await fetch(
      "https://cdn.[CENSORED]",
      { 
        cache: "no-store" // Keep this for Next.js 15 compatibility
      }
    );

    if (!response.ok) {
      throw new Error(`Failed to fetch settings: ${response.status}`);
    }

    const settings: Settings = await response.json();
    return settings;
  } catch (err) {
    console.error("Error loading settings:", err);
    return null;
  }
});

import { cache } from "react";

export const getSettings = cache(async (): Promise<Settings | null> => {
  try {
    const response = await fetch(
      "https://cdn.[CENSORED]",
      { 
        cache: "no-store" // Keep this for Next.js 15 compatibility
      }
    );

    if (!response.ok) {
      throw new Error(`Failed to fetch settings: ${response.status}`);
    }

    const settings: Settings = await response.json();
    return settings;
  } catch (err) {
    console.error("Error loading settings:", err);
    return null;
  }
});

import { cache } from "react";

export const getSettings = cache(async (): Promise<Settings | null> => {
  try {
    const response = await fetch(
      "https://cdn.[CENSORED]",
      { 
        cache: "no-store" // Keep this for Next.js 15 compatibility
      }
    );

    if (!response.ok) {
      throw new Error(`Failed to fetch settings: ${response.status}`);
    }

    const settings: Settings = await response.json();
    return settings;
  } catch (err) {
    console.error("Error loading settings:", err);
    return null;
  }
});

S

Steps•9/6/25, 1:25 PM

For this service:
https://github.com/StefanOltmann/cloudflare-oni-user-coordinate-like-service/blob/main/src/jsMain/kotlin/main.kt

Is there a smart way to utilize / instruct the Cloudflare caches to always return from cache and remove it from cache soon as I get a PUT or DELETE request?
Or can't I directly talk to CDN Caches like that?

I know that Cloudfront has some "purge caches" option.

GitHub

cloudflare-oni-user-coordinate-like-service/src/jsMain/kotlin/main....

Cloudflare Worker to manage ONI coordinate likes. Contribute to StefanOltmann/cloudflare-oni-user-coordinate-like-service development by creating an account on GitHub.

K

Kat•9/6/25, 11:32 PM

does anyone know if wrangler potentially creates time synchronization issues

KKat does anyone know if wrangler potentially creates time synchronization issues

H

Hello, I’m Allie!•9/6/25, 11:41 PM

Wrangler shouldn’t touch your timeserver settings, if that is what you mean?

K

Kat•9/6/25, 11:42 PM

ya

K

Kat•9/6/25, 11:43 PM

i have an issue with

google-auth-library

google-auth-library

google-auth-library

google-auth-library (bad request) and im trying to figure out why

standard dev works, but wrangler dev + wrangler deploy do not (json for

google-auth-library

google-auth-library

google-auth-library

google-auth-library are the same, envs loaded)

K

Kat•9/6/25, 11:50 PM

https://community.cloudflare.com/t/validate-google-auth-id-token-on-cf-workers/381293

K

Kat•9/6/25, 11:50 PM

potentially related

KKat i have an issue with `google-auth-library` (bad request) and im trying to figure...

H

Hello, I’m Allie!•9/6/25, 11:53 PM

?crossposting

S

SuperHelpflare•9/6/25, 11:53 PM

Please do not post your question in multiple channels/post it multiple times per the rules at #

welcome-and-rules. It creates confusion for people trying to help you and doesn't get your issue or question solved any faster.

K

Kat•9/6/25, 11:56 PM

guess so

K

Kat•9/6/25, 11:58 PM

i just asked about it generally herre

Iioabhishek I have built this project using next js for frontend and HonoJs for backend. Fro...

I

ioabhishek•9/8/25, 8:36 AM

S

SuperHelpflare•9/8/25, 8:41 AM

Please do not post your question in multiple channels/post it multiple times per the rules at #

welcome-and-rules. It creates confusion for people trying to help you and doesn't get your issue or question solved any faster.

Y

Yuan•9/11/25, 2:23 AM

Hi, is there an example of setting up cache for api response or server action for a NextJs project deployed on worker with opennext? i am trying to figure out how to do it correctly. thx

Ssurgery18 Anyone have any ideas for this? Still wanting to know the best way to handle thi...

V

Viktor•9/13/25, 12:13 PM

My multi tenants products are split at database level having a seperate column „tenant_id“ for top level entities

Rewriting existing code might be pain though, you might consider looking into Cloudflare for Platforms
https://developers.cloudflare.com/cloudflare-for-platforms/

Cloudflare Docs

Cloudflare for Platforms

Cloudflare for Platforms lets you run untrusted code written by your customers, or by AI, in a secure, hosted sandbox, and give each customer their own subdomain or custom domain.

VViktor My multi tenants products are split at database level having a seperate column „...

S

surgery18OP•9/13/25, 12:51 PM

What I ended up doing was having a KV that stores the domains as the key and then the value points to which DB it is located in. Also, I added tenant_id on all my tables. This way a DB can have more than 1 tenant in it. But, I can also shard my tenants across multiple DBs if I wanted to.

I was also told another route I could have taken was just have each domain pointed to a Durable Object that contains its DB. And that would automatically scale. However, I like to have migration files to update my DB and I like having a dashboard for a DB so I can run queries on it. So I didn't go that route for now.

Hey guys, I was wondering, what is the best way to handle multi-tenant apps? I have a worker that ea

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