# Component: Project creation macros¶

Project creation build upon macros. You should thus be familiar with macros. For more information, please see Component: Macros

Please see Creating projects through macros for details on why you would use project creation macros.

To start creating a project creation macro, we recommend that you use the plugin developer tools (see the tutorial for an introduction). In the Definition tab, click on “Add Python macro”, and enter the identifier for your new macro. You’ll see a new folder python-runnables and will have to edit the runnable.py and runnable.json files

A project macro is essentially a macro that will run non-impersonated, which allows it to have full control over DSS. It receives the identity of the end-user request Python function, thus allowing to perform logic based on this identity.

The project creation macro is responsible for actually creating the project, and setting up permissions.

In order to perform privileged operations, the project creation macro must obtain a privileged API key as shown in the example below.

## Example: Create project with a default code env¶

The runnable.json file looks like:

{
"meta": {
"label": "New project with code env",
"description": "Blabla",
"icon": "icon-puzzle-piece"
},

"impersonate": false,

"params": [
{
"name": "projectName",
"label": "Project name",
"type": "STRING",
"mandatory": true
},
{
"name": "pyCodeEnvName",
"label": "Python Code env name",
"type": "STRING",
"defaultValue": "python3"
}
],

"resultType": "JSON_OBJECT",

"macroRoles": [
{"type": "PROJECT_CREATOR"}
]
}


The two important parts here are:

• The macroRoles field defines this as a project creation macro
• The impersonate field makes the macro privileged

The “meta” and “params” fields are similar to all other kinds of DSS components.

The associated Python code is:

from dataiku.runnables import Runnable
from dataiku.runnables import utils
import json

class MyRunnable(Runnable):

def __init__(self, unused, config, plugin_config):
# Note that, as all macros, it receives a first argument
# which is normally the project key, but which is irrelevant for project creation macros
self.config = config

def get_progress_target(self):
return None

def run(self, progress_callback):
# Get the identity of the end DSS user
user_client = dataiku.api_client()
user_auth_info = user_client.get_auth_info()

# Automatically create a privileged API key and obtain a privileged API client

# The project creation macro must create the project. Therefore, it must first assign
# a unique project key. This helper makes this easy

# The macro must first perform the actua project creation.
# We pass the end-user identity as the owner of the newly-created project
print("Creating project")
# A project creation macro must return a JSON object containing a projectKey field with the newly-created