khala-fabric-sdk-node

fabric-sdk-node integrated utils

Component module list

• khala-fabric-admin
• @davidkhala/fabric-gateway
• khala-fabric-formatter

Windows Extra prerequisite

• global setup: require admin shell
  • npm install --global windows-build-tools if you see Error "Could+not+install+Visual+Studio+Build+Tools"
    try to run installer in C:\Users\<username>\.windows-build-tools\vs_BuildTools and follow the wizard
  • npm install --global grpc

Test

- intergration test and e2e test locates in [delphi-fabric](https://github.com/davidkhala/delphi-fabric)

Notes

• node-gyp rebuild require make and g++
• Block data emitted in block event has a structure documented in types.js
• Now User and Client is separated. Client is less useful for most actions.
• configtxlator handler (for both CLI or server based) in binManager.js
• [gPRC] waitForReady will response back positive response with non-TLS protocol
  • With grpcs://domain.org setup, we could get pong response from grpc://domain.org
• proposal response .responses.map(({connection})=>connection) could label each response with Endorser detail
• configtxlator Rest server is deprecated but kept in BinManger const binManager = new BinManager(); await binManager.configtxlatorRESTServer('down|start');
• collection-level-endorsement-policies
  • If a collection-level endorsement policy is set, transactions that write to a private data collection key will require that the specified organization peers have endorsed the transaction.
  • The collection-level endorsement policy may be less restrictive or more restrictive than the chaincode-level endorsement policy and the collection’s private data distribution policy.

TODO

• idemix for sdk-node: https://lists.hyperledger.org/g/fabric/message/6625

Fabric weakness

• Does not support multiple stream managed in single EventService even with multiple targets configured
  • Only single eventService._current_eventer take effect
  • _current_eventer is set from either one workable target