# Configuration Here is a list of all configurable environment variables for Asyncher:

Name	Required	Default Value	Description
`pull_url`	✅	❌	Your server endpoint that is used to fetch all data.
`push_url`	✅	❌	Your server endpoint that is used to push all data after sync.
`unique_key`	❌	"unique"	The name you want to use for the field that uniquely identifies the data.
`primary_key`	❌	"id"	The name of the field you are using as the primary key. It only serves to be ignored during the various synchronization steps.
`is_new_key`	❌	"is_new"	The field name you are using to indicate if the data is new. More details here.
`updated_key`	❌	"updated"	The field name you are using to indicate if the data has been edited. More details here.
`deleted_key`	❌	"deleted"	The field name you are using to indicate if the data has been deleted. More details here.
`sorting_key`	❌	❌	If you are using a field that needs to be sorted, use this env var to specify its name. More details here.
`created_at_key`	❌	❌	If you have a field that keeps track of when data is created, use this env var to specify its name. More details here.
`updated_at_key`	❌	❌	If you have a field that keeps track of when data is updated, use this env var to specify its name. More details here.
`deleted_at_key`	❌	❌	If you have a field that keeps track of when data is deleted, use this env var to specify its name. More details here.

--- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://asyncher.convertino.cloud/features/configuration.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.