Summary

Here, we conclude our tour on application development in Hyperledger Fabric. Let's recap a few of our key learning points:

• We started the chapter by examining the three fundamental operations an application can perform:
  • Query a ledger
  • Submit a new transaction
  • Listen for ledger notifications
• We discussed how the primary rationale of the fabric-network SDK package was to make these three operations simple for application programmers by abstracting the often-complex network topology found in a Hyperledger Fabric network.
• We explored in closer detail the process of querying, transaction submission, and ledger notification. We examined the interactions required between Hyperledger Fabric components to make these capabilities available to application programmers.
• We examined how applications embody these operations in code, looking at the main SDK abstractions that are used to simplify network interactions...