What are the types of nodes in Hyperledger Fabric?

In Hyperledger Fabric, the architecture revolves around specific roles that nodes can take within the blockchain network. The types of nodes are crucial for understanding how Fabric operates to maintain a secure and efficient distributed ledger system.

Endorsing nodes are responsible for validating transactions and can endorse them based on the endorsement policy set for the network. This means that they play a vital role in ensuring that the transactions adhere to the rules defined by the chaincode. These nodes are the ones that execute the smart contracts and generate transaction proposals that are sent out for endorsement.

Ordering nodes, on the other hand, manage the ordering of transactions. They are responsible for packaging endorsed transactions into blocks and ensuring that all transactions are sequenced correctly before they are committed to the ledger. This function is essential in preventing issues such as double-spending and ensuring that the ledger remains consistent across all peers.

Peer nodes are involved in maintaining the ledger and the state of the blockchain. They store a copy of the blockchain and can also act as endorsing nodes, depending on how the network is set up. Peers help to disseminate the blocks of transactions and state updates to other nodes in the network.

Understanding these types of nodes is key to grasping how Hyperledger Fabric ensures transaction integrity, consensus