Hyperledger Fabric Trading Process

First of all, a simple look at the above transaction flow chart, the following is a detailed diagram of the entire fabric of the whole business process:

1. The block chain client sends the transaction request to all endorsed nodes (endorsing peer) that have been agreed before. Here is a description of the choice of endorsing peer is a certain range, not in all the endorsing peer arbitrary choice, is the transaction is the Chaincode and the Chaincode defined endorsement policy joint decision.

2. Endorsement node received the above information, first with the client's public key to verify its signature, endorsement node implementation of Intelligent contract (is simulated transactions, will not be written into the ledger), the results of the implementation feedback to the client.

3. The client collects "enough" endorsement of the results of the node, it shows that the transaction through the endorsement phase. It is then packaged and sent to the consensus node (orderers). The number of "sufficient" is how much, depending on the endorsement strategy endorsement policy is provided, on the contrary, if the client does not collect enough information, the transaction will be abolished. The client may choose to initiate the transaction again.

4. Although the consensus phase has different algorithms, the goal is to add effective transactions to the newly generated blocks and notify all nodes to keep their books in line. The consensus node broadcasts the results to all nodes (peer). Each node then updates its own ledger.