1. Is there any API available for get list of all orders in a date range?
2. Is there any API available for get all line item in a date range without passing order id?
For 1, yes that is possible. Please see https://docs.clover.com/clover-platform/docs/applying-filters for information on how to filter along with our REST API reference here https://docs.clover.com/clover-platform/reference#merchants-1. For 2 I believe you have to have an order id to retrieve line items.
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