Hi folks I ve built my first Prefect flow it interacts with

Question

Hi folks I ve built my first Prefect flow it interacts with two banking APIs and I m ready to deploy it to production but I m struggling a bit to wrap my head around all the pieces I now seem to need I figured I d deploy it to Prefect Cloud for simplicity s sake but a my custom block doesn t seem to be working it says it failed validation and b the docs seem to suggest that even though I m running it in Prefect Cloud I still need to bring my own storage e g S3 bucket and infrastructure e g k8s cluster Am I understanding that correctly or is there a simpler way to get a basic flow running in production Regarding a I created a custom block in a local package that just stores client id client secret and has a refresh token function I import it via `from prefect monzo import MonzoCredentials`

redsquare · Answer

Hey Tim yes you do need to bring your own tin in one form or another until prefect have some sort of managed execution not sure if when

redsquare · Answer

Did you get the validation error when attempting to save your custom block

Tim Wisniewski · Answer

< redsquare> By save do you mean register If so no it said Successfully registered 1 block and then I configured it in the UI on Prefect Cloud

Tim Wisniewski · Answer

I d ran `prefect block register file prefect monzo credentials py` the same way I did when I had it working locally

Tim Wisniewski · Answer

Okay seems like there s a big gap between getting it running locally and getting it running in production I ll look around for some tutorials for getting it running in production

redsquare · Answer

You can load the block with validate=False

Tim Wisniewski · Answer

< redsquare> er I suppose I could yeah but doesn t the error message imply I m doing something wrong

redsquare · Answer

< Tim Wisniewski> potentially it was this bring thrown

redsquare · Answer

a versioning thing

Tim Wisniewski · Answer

< redsquare> I m sorry I just took another look at the error and it s not related to my custom block it s related to my SqlAlchemyConnector block ```from prefect sqlalchemy import SqlAlchemyConnector database block = SqlAlchemyConnector load db ``` ```prefect exceptions ScriptError Script at sync py encountered an exception RuntimeError Unable to load db of block type None due to failed validation To load without validation try loading again with `validate=False` ```

redsquare · Answer

does that open in the UI

Tim Wisniewski · Answer

I added the SqlAlchemyConnector block from the UI and named db if that s what you mean

redsquare · Answer

yeah that form looks buggy in the ui depending on what you select

Tim Wisniewski · Answer

Oh I see what you mean looks like it was missing a value but let me save anyway and when I edited the value it dropped the password

redsquare · Answer

I ve raised it with them

Tim Wisniewski · Answer

Seems like it s running now I ve still got to run the agent from my laptop but I got an error message that suggests it s at least running my code properly so that s progress Thanks for your help

Tim Wisniewski · Answer

Just need to work out how to run the agent from prefect cloud rather than my laptop but will dig back into the docs

redsquare · Answer

yeah depends what infra you have available to you