# 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.