Convert Python Dictionary Object to JSON String
| Definition: | dictToJsonString(dictionary: dict) → str
|
| Description: | Converts a Python dictionary object into a JSON string |
| Parameters: | jsonString: The dictionary object which needs to be converted |
| Returns: | A JSON-formatted string created from the input dictionary |
The following script converts an object, <dictionary>, into a JSON-formatted string using the dictToJsonString function. The resulting dictionary is assigned to the <jsonDict> field.
Note: Replace the placeholder values in the script with your own values.
from io.hevo.api import Event
from io.hevo.api import Utils
def transform(event):
eventName = event.getEventName()
properties = event.getProperties()
<dictionary> = {<"key-value1": "key-value2", "key-value3": "key-value4">} # JsonObject from a source table
properties['jsonStr'] = Utils.dictToJsonString(<dictionary>)
return event
Sample Transformation
Consider an object, Billing with the following fields:
-
name- Eric -
location- USA -
exp- 15years
The dictToJsonString function extracts the customer details (name, location, and exp) from the Billing object and converts these in a JSON-formatted string. This JSON string is then assigned to the customer field under properties.
from io.hevo.api import Event
from io.hevo.api import Utils
def transform(event):
eventName = event.getEventName()
properties = event.getProperties()
customer_keys = ['name', 'location', 'exp']
customer = {}
for key in customer_keys:
customer[key] = properties[key]
del properties[key]
customer_str = Utils.dictToJsonString(customer)
properties['customer'] = customer_str
return event
Sample Output
The name, location, and exp fields and their values are displayed in the customer field as a JSON string.
Last updated on Mar 05, 2024