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DevDay: Node Analytics with Python, Chainhaus
This document introduces PyCorda, an open source Python library for interacting with Corda nodes. It summarizes key features of PyCorda like running a Hello World CorDapp that issues an obligation, reading node info and vault states, and using DataFrames for filtering, selecting, joining and charting data from Corda nodes. The document also provides information about the speaker like their background in blockchain education and products, and outlines next steps for PyCorda like log analysis and deserializing states from the database into Python objects.
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DevDay: Node Analytics with Python, Chainhaus
- 1. Node Analytics withPython jamiel@chainhaus.com http://jamiel.io
- 2. Quick bio • Details:http://Jamiel.io • CEO, Chainhaus • Education • Advanced Corda Classes (Tokens, Oracles, RPC, Complex Flows / States) • Dev • Events • Two products based on Corda – FloLedger & DesignedAssets • Teach graduate blockchain, AI & machine learning • Columbia Business School • NYU
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- 6. Key blockchain trajectory •Interop • Data
- 7. Predictive Analytics • I’veissued a Letter of Credit to party X, how long will it take for them to sign? • At what price should I price this asset given what I know about the buyer? • Can I detect anomalies in partner transactions that may indicate fraud?
- 8. What tools? • Tableau? •Hadoop? • Spark?
- 9. What do datascientists use? • Java • Kotlin • Scala
- 10. What data scientistsuse • R • Python
- 14. Introducing PyCorda • Opensource • Python • PyCorda.com
- 15. Hello World- ObligationCorDapp • PartyA • Set H2 port to 55555
- 16. Read NodeInfos import pycordaas pyc partyA = pyc.Node(url, username, password) partyA.get_node_infos()
- 19. Linear States • Viewlinear states table • Issue an obligation • View linear states table
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- 30. Node REST APIcalls
- 31. Flexibility of DataFrames •Can • Filter • Select • Join • Clean • Append • Concat • Bulk modify • Chart • Etc.
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- 37. Installation – RequiresPython 64-bit
- 38. Next version • Loganalysis • Reg ex filters • Support QueryableStates • Deserializing states from DB into Python objects • Database clean up (Transaction message table)
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