JSON RPC Changes in Casper 2.0
Introduction
This article is intended for developers consuming the Casper 2.0 (AKA Condor) JSON RPC, such as dApp developers, SDK developers, or others relying on the JSON-RPC API. In this article we examine the JSON-RPC and break down the differences between v1.5.6 and v2.0.0.
Since the network's inception, the Casper node has exposed an API over HTTP, using JSON, which is known as the JSON-RPC. This API allows client software such as dApps and SDKs to communicate and interact with the node, giving access to query node state, chain state, balance details and other information, as well as to write information to the chain by submitting transactions.