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Flows that were started with a client id would hang because it would retrieve the existing flow's future and wait for it to finish. But, because the flow has failed its flow init and not saved its initial checkpoint, it is relying on `startFlow` to start the flow again (by redelivering the start flow external event). `FlowWithClientIdStatus` now holds the flow id that it is related to. This is then checked in `startFlow`. If a matching client id is found for a flow start, it then checks the flow id as well. If the flow id matches, then it lets the `startFlow` call continue, allowing it to actually start the flow again (how a flow without a client id would retry in this situation).
Corda
Corda is an open source blockchain project, designed for business from the start. Only Corda allows you to build interoperable blockchain networks that transact in strict privacy. Corda's smart contract technology allows businesses to transact directly, with value.
Features
- Smart contracts that can be written in Java and other JVM languages
- Flow framework to manage communication and negotiation between participants
- Peer-to-peer network of nodes
- "Notary" infrastructure to validate uniqueness and sequencing of transactions without global broadcast
- Enables the development and deployment of distributed apps called CorDapps
- Written in Kotlin, targeting the JVM
Getting started
- Read the Getting Started documentation
- Run the Example CorDapp
- Read about Corda's Key Concepts
- Follow the Hello, World! tutorial
Useful links
- Project Website
- Mailing List
- Documentation
- Stack Overflow Tag
- Slack Channel
- Meetups
- Training Courses
Contributing
Corda is an open-source project and contributions are welcome!
To find out how to contribute, please see our contributing docs.
License
Acknowledgements
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