Daniel Van Der Maden

Software Engineer @PalantirTech. Computer Science @UCBerkeley.

[patrickogrady.xyz @_patrickogrady]

This article from @harmonyprotocol does a GREAT job of explaining "Why Rosetta", highlighting a few tools that help during implementation, and covering how Rosetta can be used for all sorts of complex transactions. Check out this 🧵for my favorite points:

[Harmony @harmonyprotocol]

1/ Today we’re announcing our successful integration with @coinbase #rosetta API. Read details here and also a thread for those that only read tweets and ignore anything greater than 280 characters

A thread...

https://t.co/4maZ03Joju

[Daniel Van Der Maden @DanielVDMaden]

@EdgarArout 🧐

[Daniel Van Der Maden @DanielVDMaden]

@stse @ProBit_Exchange @BinanceUS @cryptocoley @TheSandboxGame #pow38
Rosetta Transaction Construction

✅ConstructionDerive: Acc derivation
✅ConstructionPreprocess: Verify operations for tx
✅ConstructionMetadata: Chain data for tx
✅ConstructionPayloads: Sig payload for tx

https://t.co/Tgdesqj4Yo
♥️ expressiveness of @coinbase rosetta

[Daniel Van Der Maden @DanielVDMaden]

@stse @binance @Tokocrypto @BinanceUS @ConnextNetwork @DeFi_Dad @CamiRusso @DefiantNews #pow37

📋 Multichain outline and technical design doc: https://t.co/qLEAJY6AcP
🛠️ Rosetta node API undelegation & redelegation accounting with non-archival node support https://t.co/83qGQb7GGO
🚧 Resumed work on Rosetta construction (tx signing) API.

[Daniel Van Der Maden @DanielVDMaden]

@stse @BinanceUS @chainlink August #pow

🚧 Foundations for native Rosetta API support on all Harmony nodes.
🚀 Rosetta Data API's Network & Blocks endpoints finished with extensive tests.
🤓 Port @CurveFinance contract on to Harmony during #DeFi Hackathon.

https://t.co/zWOui63OEA

[Daniel Van Der Maden @DanielVDMaden]

@stse @harmonyprotocol @binance @RupiahTokenIDRT July #pow

🛠️ RPC refactor: remove code duplication, add error returns & expose RPC pkg
📋 New integration test for each PR - 66% faster covering 2x num of RPCs - made easy to use with docker
🔖 Plan for Node API Overhaul & #Rosetta implementation: https://t.co/zWOui63OEA

[Daniel Van Der Maden @DanielVDMaden]

@stse @jelly_swap @InsightFellows @WazirXIndia @CoinDCX @CamiRusso #pow29

📋 Finished Node API testing infra & RPC test suite. 5k+ LOC in python, 84 detailed tests, fully parallelized & extensible — all to be run on EVERY PR
🚀 Revamped PR testing, each PR check now takes 7-8 min, 1/3 of what it is now & covers ALL RPCs https://t.co/CvhOh2gQp3

[Daniel Van Der Maden @DanielVDMaden]

@stse @MessariCrypto @binance @HuobiGlobal @TheRealRipt #pow28

📢 Published Node API overhaul design doc here: https://t.co/zWOui63OEA. It's open for feedback!
⚙️ Started stage 1 of Node API overhaul: Testcases to preserve node API/RPCs behavior.
📋 Overhauling the main repo testing pipeline to be 1 docker run command.

[Daniel Van Der Maden @DanielVDMaden]

Hope to make life easier for developers, exchanges, and partners building on @harmonyprotocol by overhauling the Node API.

Check out the design doc, it's open for feedback & discussion!
https://t.co/zWOui63OEA

[Daniel Van Der Maden @DanielVDMaden]

@stse @Cobo_Wallet @michaelotis @RepublicCrypto #PoW27
🔭 Explored options for RPC/API layer overhaul for Node
⚙️ Created design doc for Node API overhaul, will post design doc for review by the community! First draft here: https://t.co/1Jj60Qz5Cn
🔖 Reviewed issues found when creating demo dApp, hope to improve dev experience

[Daniel Van Der Maden @DanielVDMaden]

@stse @cz_binance @HuobiGlobal @AtomicWallet June #PoW

🖥️ DB snapshotting + rclone infra with full automation & self-serving jobs + docs.
🚀 AutoNode for mainnet with focus on safe UX for validators.
⚙️ Develop crowdfunding dapp on @harmonyprotocol , gained lots of insights on how we can make developing on harmony better!

[Daniel Van Der Maden @DanielVDMaden]

@stse @harmonyprotocol @HuobiGlobal @StakingRewards @synthetix @idexio @VitalikButerin @DirSchmidt #pow25

🚀 AutoNode close to release for open seats coming next week. Check out the documentation here: https://t.co/3dA4FpYM1g
📓 Started research on RPC layer revamp. Keen on following @coinbase #rosetta spec and extending it for Harmony.

[Daniel Van Der Maden @DanielVDMaden]

@stse @binance @Frontierwallet @cz_binance @VBieberin #pow24

🗜️Finished snapshot DevOps automation. All things related to snapshotting a DB (creating, recovering, publishing) is now self-serving on Jenkins.
🔨 Resumed work on AutoNode to get it ready for Mainnet! Lots of progress: https://t.co/o60uXeO9cI

[Daniel Van Der Maden @DanielVDMaden]

@stse @binance @AtomicWallet @EdgeWallet My #PoW

⚙️ Finished recovery tool that automates restoring a network (or a set of nodes) to a saved DB. Useful for quick iteration & mainnet crash recovery.
💸 Created a script for the Harmony CLI that allows one to send transactions from a CSV file. https://t.co/zYSIT1ECn0

[stephen tse @stse]

BREAKING: @binance USD (BUSD) will launch on @harmonyprotocol mainnet!

just in time for our #binance launchpad anniversary 🎉

@cz_binance keeps urging us for utility & adoption – #BUSD (NYDFS approved, fully audited, $170M cap) on #harmony makes #crossfi cross-border finance 💪

[Daniel Van Der Maden @DanielVDMaden]

@stse @Cobo_Wallet @CoinDCX @polkadotnetwork @binance May #PoW

🚀 Prelaunch Ops: P3 OSTN, Adhoc testnet deploy, mainnet node prep, mainnet fire drill.
⚙️ Dev: Remove error sink msg duplication, speedup sending bulk Txs with CLI, fix stuck tx edge-case bug.
💻 Launch LRTN.
💾 Create and deploy an automatic DB snapshotting script.

[Daniel Van Der Maden @DanielVDMaden]

@stse @binance @BitMax_Official #pow

🚀 Terminate testnets and launch our Long-Running testnet (LRTN). Endpoint: is https://t.co/192E1CYgDV.
⚙️ Improve transaction processing (incl errored tx) on nodes. PR: https://t.co/g4Ky9Uuuck
💸 Improve CLI to send bulk transactions more quickly using pool nonce.

[Daniel Van Der Maden @DanielVDMaden]

@stse #pow20
🚀#OpenStaking Launch!!

🚒 Network recovery fire drill, feeling confident!
🏗️ Deploy network for view change test w/ @gupadhyaya
⚙️ Consolidate internal node daemon for better Mainnet stability
🔍 The final round of integration testing & help onboard @JackyTheCoder

[Daniel Van Der Maden @DanielVDMaden]

@stse @ethereum @cosmos @polkadotnetwork @EdgarArout @ReadyLayerOne my #PoW

💪Last-mile push!

⚙️ Fix error sink msg duplication https://t.co/mEWrOEUuZM
💻 Fix pending transaction fetch https://t.co/PkLDygvljT
🏗️ Prep mainnet for #OpenStaking launch
🚀 Help launch dry-run network with @leochen for mainnet upgrade testing