Hi everyone! How can I create a variable (<this> o...
# ask-communityg
Giacomo Chiarella
05/23/2023, 1:08 PMHi everyone! How can I create a variable (this one) using python package prefect 2.10.10?
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flapili
05/23/2023, 1:09 PMyou probably can use client
flapili
05/23/2023, 1:09 PMfrom prefect import get_clientflapili
05/23/2023, 1:10 PMIIRC
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Giacomo Chiarella
05/23/2023, 1:10 PMah right, totally forgot, thanks!
Giacomo Chiarella
05/23/2023, 1:14 PM@flapili unfortunately there is no api to create a variable using the client
Giacomo Chiarella
05/23/2023, 1:14 PMthere are only read methods
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flapili
05/23/2023, 1:15 PMthen grab httpx session from client and do a http requests
flapili
05/23/2023, 1:15 PMit's a little ugly but it should work
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Giacomo Chiarella
05/23/2023, 1:16 PMnever done that, do you have a snippet of code as example?
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flapili
05/23/2023, 1:16 PMflapili
05/23/2023, 1:17 PMinstead client will come from an attribut of the prefect client
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Giacomo Chiarella
05/23/2023, 1:17 PMshould I use async from inside a task?
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flapili
05/23/2023, 1:18 PMprobably
flapili
05/23/2023, 1:18 PMI believe prefect client use a httpx async session
flapili
05/23/2023, 1:18 PMaren't you sure you won't need block instead ?
flapili
05/23/2023, 1:19 PMvariable is for var templating of projects primary if I understood correctly
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Giacomo Chiarella
05/23/2023, 1:20 PMyes, I just want to save a flow parameter (like start date), to be able to make the flow extracting data from the value stores in the variable
Giacomo Chiarella
05/23/2023, 1:20 PMor maybe a json with a couple of parameters
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flapili
05/23/2023, 1:20 PMthen use a json block ?
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Giacomo Chiarella
05/23/2023, 1:21 PMlol I didn’t know the existence of that, maybe that is better
Giacomo Chiarella
05/23/2023, 1:21 PMthe conversion would be free
Giacomo Chiarella
05/23/2023, 1:21 PMthen what are variables for?
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flapili
05/23/2023, 1:25 PMto me (but I maybe missunderstood) it's usefull to bootstrap prefets's projects
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Giacomo Chiarella
05/23/2023, 1:26 PMgenerally speaking then I would use variable to save global configuration, I mean a parameter that should have the same value for every flow