For reference https://www.youtube.com/watch?v=slS4RBV0SBk

D

Diogo FerreiraOP•10/24/24, 4:50 PM

Part 2: https://www.youtube.com/watch?v=-HtTgvBi6eQ

Cloudflare Workflows: Batching and Monitoring Your Durable Execution

Workflows, Cloudflare's Durable Execution framework, automatically handles queueing and batch execution of your work. This leads to powerful reusable solutions that you can use across your application.

Create an account on Cloudflare today for free: https://dash.cloudflare.com/sign-up

Tools mentioned:
https://developers.cloudflare.com
https:/...

S

Seekerdasbatatas•10/24/24, 4:54 PM

great stuff from @Craig

SSeekerdasbatatas great stuff from @Craig 🚀

F

fry69•10/24/24, 4:58 PM

Punderful!

S

sdr•10/24/24, 5:08 PM

Am I missing something with running the template locally with

wrangler dev

wrangler dev

?

⎔ Starting local server...
✘ [ERROR] Worker "workflows:workflows-starter"'s binding "USER_WORKFLOW" refers to a service "core:user:workflows-starter", but no such service is defined.

⎔ Starting local server...
✘ [ERROR] Worker "workflows:workflows-starter"'s binding "USER_WORKFLOW" refers to a service "core:user:workflows-starter", but no such service is defined.

⎔ Starting local server...
✘ [ERROR] Worker "workflows:workflows-starter"'s binding "USER_WORKFLOW" refers to a service "core:user:workflows-starter", but no such service is defined.

⎔ Starting local server...
✘ [ERROR] Worker "workflows:workflows-starter"'s binding "USER_WORKFLOW" refers to a service "core:user:workflows-starter", but no such service is defined.

The defaults are present in the wrangler.toml

[[workflows]]
# name of your workflow
name = "workflows-starter"
# binding name env.MYWORKFLOW
binding = "MY_WORKFLOW"
# this is class that extends the Workflow class in src/index.ts
class_name = "MyWorkflow"
# script_name is required during the Workflows beta.
# Must match the "name" of your Worker at the top of wrangler.toml
script_name = "workflows-starter"

[[workflows]]
# name of your workflow
name = "workflows-starter"
# binding name env.MYWORKFLOW
binding = "MY_WORKFLOW"
# this is class that extends the Workflow class in src/index.ts
class_name = "MyWorkflow"
# script_name is required during the Workflows beta.
# Must match the "name" of your Worker at the top of wrangler.toml
script_name = "workflows-starter"

[[workflows]]
# name of your workflow
name = "workflows-starter"
# binding name env.MYWORKFLOW
binding = "MY_WORKFLOW"
# this is class that extends the Workflow class in src/index.ts
class_name = "MyWorkflow"
# script_name is required during the Workflows beta.
# Must match the "name" of your Worker at the top of wrangler.toml
script_name = "workflows-starter"

[[workflows]]
# name of your workflow
name = "workflows-starter"
# binding name env.MYWORKFLOW
binding = "MY_WORKFLOW"
# this is class that extends the Workflow class in src/index.ts
class_name = "MyWorkflow"
# script_name is required during the Workflows beta.
# Must match the "name" of your Worker at the top of wrangler.toml
script_name = "workflows-starter"

Am i missing some step / command to create the service? I thought wrangler was taking care of all that for me

S

sdr•10/24/24, 5:11 PM

Hmm I think the template has a typo, if I rename the name to worfklows-starter I think it works

S

Seekerdasbatatas•10/24/24, 5:11 PM

did you create it using create-cloudflare?

S

sdr•10/24/24, 5:12 PM

The docs are right but the template might be wrong

S

sdr•10/24/24, 5:12 PM

Yeah created using the cli

S

Seekerdasbatatas•10/24/24, 5:12 PM

yeah create-cloudflare changes the

name

name

of the worker but not the references to itself

this is a bug thanks

S

sdr•10/24/24, 5:12 PM

Ok cool!

S

sdr•10/24/24, 5:30 PM

I get an error when I try to use the

wrangler workflows delete ...

wrangler workflows delete ...

wrangler workflows delete ...

wrangler workflows delete ... command

✘ [ERROR] A request to the Cloudflare API (/accounts/{ACCOUNT_ID}/workflows/workflows-starter) failed.
workflows.api.error.not_found [code: 10000]

I see that the delete endpoint isnt in the api docs, does this command not work yet?

Ssdr I get an error when I try to use the `wrangler workflows delete ...` command ✘ ...

D

Diogo FerreiraOP•10/24/24, 5:34 PM

Yes, unfortunately deleting a Workflow is not possible for the moment.

SSeekerdasbatatas yeah create-cloudflare changes the `name` of the worker but not the references t...

M

Matt Silverlock•10/24/24, 5:39 PM

Removed the fixed

script_name

script_name

script_name

script_name references in the config.

S

sdr•10/24/24, 5:48 PM

Using wrangler how do I get the json output of the workflow instance? I see theres a prod api endpoint to describe it but the wrangler command prints out a formatted list

wrangler workflows instances describe workflows-starter something

wrangler workflows instances describe workflows-starter something

wrangler workflows instances describe workflows-starter something

wrangler workflows instances describe workflows-starter something

MMatt Silverlock Removed the fixed `script_name` references in the config.

M

Matt Silverlock•10/24/24, 5:48 PM

PR for how you can use it to bind to a Workflow in a different script: https://github.com/cloudflare/cloudflare-docs/pull/17770

D

DiamondDragon•10/24/24, 6:04 PM

how do we test the workflow using

wrangler dev

wrangler dev

?

✔ script to run › dev

> workflows-starter@0.0.1 dev /Users/am/Coding/2024/workflows-starter
> wrangler dev


 ⛅️ wrangler 3.83.0
-------------------

Your worker has access to the following bindings:
- Workflows:
  - MY_WORKFLOW: MyWorkflow
⎔ Starting local server...
[wrangler:inf] Ready on http://localhost:8787

✔ script to run › dev

> workflows-starter@0.0.1 dev /Users/am/Coding/2024/workflows-starter
> wrangler dev


 ⛅️ wrangler 3.83.0
-------------------

Your worker has access to the following bindings:
- Workflows:
  - MY_WORKFLOW: MyWorkflow
⎔ Starting local server...
[wrangler:inf] Ready on http://localhost:8787

✔ script to run › dev

> workflows-starter@0.0.1 dev /Users/am/Coding/2024/workflows-starter
> wrangler dev


 ⛅️ wrangler 3.83.0
-------------------

Your worker has access to the following bindings:
- Workflows:
  - MY_WORKFLOW: MyWorkflow
⎔ Starting local server...
[wrangler:inf] Ready on http://localhost:8787

✔ script to run › dev

> workflows-starter@0.0.1 dev /Users/am/Coding/2024/workflows-starter
> wrangler dev


 ⛅️ wrangler 3.83.0
-------------------

Your worker has access to the following bindings:
- Workflows:
  - MY_WORKFLOW: MyWorkflow
⎔ Starting local server...
[wrangler:inf] Ready on http://localhost:8787

A

Advany•10/24/24, 6:11 PM

would workflows work for workers for platforms? Use case would be generating dispatch workers with custom workflows based on user input... Would I be able to add the workflows to the same dispatch workers and create the binding to it?

L

LordSilver•10/24/24, 8:52 PM

mmm k, lemme see

L

LordSilver•10/24/24, 8:52 PM

mmm, nice tutorial indeed

L

LordSilver•10/24/24, 8:54 PM

my ADHD has issues processing the wall of text of the blog post, maybe with some pagination i could have tricked my brain to swallow the bullet

F

fry69•10/24/24, 8:54 PM

See the guide -> https://developers.cloudflare.com/workflows/get-started/guide/

S

sdr•10/24/24, 9:56 PM

Will we be able to set a workflow binding within a pages app sometime soon?

M

makrdev•10/24/24, 10:05 PM

Congratulations on the beta release! What are your thoughts on the future of Workflows? How do you plan to evolve it? Is it going to be a fully developed workflow system like Inngest or Trigger, or is it just the foundation?

D

Dmitry•10/24/24, 10:48 PM

Been waiting to try out Workflows for sooooo long! So glad it's finally here

Was playing around with it a bit ... so cool and easy to use!

LLordSilver mmm k, lemme see

M

Matt Silverlock•10/24/24, 10:48 PM

Getting this link fixed.

Mmakrdev Congratulations on the beta release! What are your thoughts on the future of Wor...

M

Matt Silverlock•10/24/24, 10:48 PM

This is just early days: it's a beta

D

Dmitry•10/24/24, 10:48 PM

I might be able to even swap out Temporal for Cloudflare Workflows

D

Dmitry•10/24/24, 10:52 PM

I'm sure this has already been reported.. but seeing some weird flashing in terms to statuses?

D

Dmitry•10/24/24, 10:52 PM

Like it flashes from Completed to Errored?

D

Dmitry•10/24/24, 10:53 PM

Look's like it flashes when it's "Updating" ?

D

Dmitry•10/24/24, 10:56 PM

F

fry69•10/24/24, 10:57 PM

There might be some rough edges indeed -> workflows

D

Dmitry•10/24/24, 10:59 PM

Hmm interesting

Feel like that would have been something someone would have noticed with months of testing

D

Dmitry•10/24/24, 10:59 PM

Will keep reporting the bugs as I see them

D

Dmitry•10/24/24, 11:06 PM

Even though my wall time says 5s 123ms (at the top).. I'm only getting charged the 2 wall times for when my function ran correct (26ms and 24ms respectively)? Shouldn't the "Wall Time" at the top right there say 26ms+24ms instead of 5s 123ms?

D

Dmitry•10/24/24, 11:06 PM

Cause wall time is what we're being charged correct?

D

Dmitry•10/24/24, 11:06 PM

I'm not being charged for 5s 123ms of wall time here?

DDmitry I'm not being charged for 5s 123ms of wall time here?

F

fry69•10/24/24, 11:07 PM

As far as I know Cloudflare never charges for wall time, only for CPU time

DDmitry Cause wall time is what we're being charged correct?

M

Matt Silverlock•10/24/24, 11:26 PM

CPU time only. Covered in the docs and the blog post:

Cloudflare Docs

Pricing | Cloudflare Workflows docs

Workflows pricing is identical to Workers Standard pricing and are billed on two dimensions:

The Cloudflare Blog

Build durable applications on Cloudflare Workers: you write the Wor...

Cloudflare Workflows is now in open beta! Workflows allows you to build reliable, repeatable, long-lived multi-step applications that can automatically retry, persist state, and scale out. Read on to learn how Workflows works, how we built it on top of Durable Objects, and how you can deploy your first Workflows application.

MMatt Silverlock CPU time only. Covered in the docs and the blog post: * https://developers.cloud...

D

Dmitry•10/24/24, 11:27 PM

Gotcha I thought Wall Time = CPU Time

D

Dmitry•10/24/24, 11:27 PM

Makes more sense now thanks!

D

dave•10/25/24, 1:16 AM

Any technical downside to using custom IDs instead of the randomly generated ones?

E

Elliot Hesp•10/25/24, 6:29 AM

What are the memory constraints inside of a workflow? E.g download a big file, then do some processing in the next step

EElliot Hesp What are the memory constraints inside of a workflow? E.g download a big file, t...

F

fry69•10/25/24, 6:32 AM

-> https://developers.cloudflare.com/workflows/reference/limits/

D

dragonli•10/25/24, 6:46 AM

What is the maximum size of a workflow request body?

Ddragonli What is the maximum size of a workflow request body?

S

Seekerdasbatatas•10/25/24, 7:03 AM

If you mean the workflow instance payload ~1MiB

SSeekerdasbatatas If you mean the workflow instance payload ~1MiB

A

Advany•10/25/24, 7:41 AM

A way around that would be to save it to r2/kv and then use in the next step?

AAdvany A way around that would be to save it to r2/kv and then use in the next step?

S

Seekerdasbatatas•10/25/24, 8:11 AM

Exactly, I had an idea to make an abstraction on top of workflows to save every step to R2 and lazily load steps as you actually need them, we don't do it by default because it kind of defeats the purpose of the free tier

Cool side project for someone

as I don't have that much time to do it haahhaha

SSeekerdasbatatas If you mean the workflow instance payload ~1MiB

D

dragonli•10/25/24, 8:36 AM

ok

For reference https://www.youtube.com/watch?v=slS4RBV0SBk

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