@Marvin how can i create a variable in Prefect Cloud not via UI but through code?

To create a variable in Prefect Cloud through code, you need to set up the Prefect Cloud API URL and API key in your environment. Here's how you can do it:

$ prefect config set PREFECT_API_URL="<https://api.prefect.cloud/api/accounts/[ACCOUNT-ID]/workspaces/[WORKSPACE-ID]>" 
$ prefect config set PREFECT_API_KEY="[API-KEY]"

You can copy the

PREFECT_API_URL

value directly from the page URL when you're in a Prefect Cloud workspace. You can also set

PREFECT_API_URL

and

PREFECT_API_KEY

as you would any other environment variable. For more details, you can refer to the Prefect documentation.

sorry @Marvin you misunderstood me, I want to know how I can create variables with REST API or via code. Through the REST API I can't find the client function that creates variables. could you point me to it?

To create variables via the REST API in Prefect, you can use the

createVariable

mutation. Here is an example of how to do it using Python:

import requests

# Define the API endpoint
url = "<https://api.prefect.io/graphql>"

# Define the headers for the API request
headers = {
    "Authorization": "Bearer YOUR_PREFECT_API_KEY",
    "Content-Type": "application/json"
}

# Define the GraphQL mutation for creating a variable
mutation = """
mutation($input: createVariableInput!) {
  createVariable(input: $input) {
    id
  }
}
"""

# Define the variables for the mutation
variables = {
    "input": {
        "name": "YOUR_VARIABLE_NAME",
        "value": "YOUR_VARIABLE_VALUE"
    }
}

# Make the API request
response = <http://requests.post|requests.post>(
    url,
    headers=headers,
    json={
        "query": mutation,
        "variables": variables
    }
)

# Print the response
print(response.json())

Replace

YOUR_PREFECT_API_KEY

,

YOUR_VARIABLE_NAME

, and

YOUR_VARIABLE_VALUE

with your actual Prefect API key, variable name, and variable value respectively. Please note that you need to have the necessary permissions to create variables in Prefect Cloud. For more details, you can refer to the Prefect REST API documentation.

@Marvin isn't there a prefect.client function that allows me to create variables?

I apologize for the confusion. Currently, Prefect's Python client does not provide a direct function to create variables. Variables can be created and managed via the Prefect UI, REST API, or CLI. Here's how you can access variables in your Python code:

from prefect import variables

# from a synchronous context
answer = variables.get('the_answer')
print(answer)  # 42

# from an asynchronous context
answer = await variables.get('the_answer')
print(answer)  # 42

# without a default value
answer = variables.get('not_the_answer')
print(answer)  # None

# with a default value
answer = variables.get('not_the_answer', default_value='42')
print(answer)  # 42

For creating and managing variables via the REST API or CLI, please refer to the Prefect documentation.