Wallet Transfer Service: idempotent, double-entry, concurrency-safe (Feroz Khatri) - #101

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ferozyk wants to merge 12 commits into

Robustrade:mainfrom

ferozyk:solution/feroz-khatri

Commits on Jun 26, 2026

feat(domain): establish domain model, service ports, and schema
ferozyk
committed
fdebb17
feat(repository): PostgreSQL adapters with row-level locking
ferozyk
committed
20c5ebb
feat(service): transfer orchestration with idempotency and locking
ferozyk
committed
1fe90d7
feat(handler): chi HTTP transport for transfers and balances
ferozyk
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82650f5
feat(server): add walletd entrypoint with migrations and graceful shutdown
ferozyk
committed
90836b5
fix(concurrency): prevent deadlock and keep idempotency claim tx-safe
ferozyk
committed
3fa67e6
test(integration): end-to-end concurrency and idempotency suite
ferozyk
committed
bd0aeb5
chore(lint): adopt US spelling and goimports grouping
ferozyk
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185a8f6
build: add Dockerfile, compose stack, Makefile, and linter config
ferozyk
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3f5757e
docs: add solution README, design notes, AI disclosure, and PR description
ferozyk
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52890f7
refactor: rename module path to github.com/ferozyk/wallet-transfer-assignment
ferozyk
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5c8adc7

Commits on Jun 27, 2026

fix(service): address review feedback on hashing, docs, and a typo
ferozyk
committed
baf6be5