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Operations and Execution

Securities Lending

sd-securities-lending · bian-operations

A BIAN service domain in Operations and Execution. It applies the Fulfill functional pattern to the Securities Loan, with the Securities Loan Fulfillment Arrangement as its control record — one independent Spring Boot microservice on the platform's Cilium eBPF mesh.

View repository ↗The 162-domain platform ↗

Business DomainSecurities
Functional PatternFulfill
Asset TypeSecurities Loan
Control RecordSecurities Loan Fulfillment Arrangement

USEWhat it is used for

Representative use cases for the Securities Lending service domain within a BIAN-aligned core-banking landscape.

APIBIAN semantic API

The control record (Securities Loan Fulfillment Arrangement) is exposed through uniform BIAN action terms. Java 21 · Spring Boot 3, OpenAPI at /swagger-ui.html, health at /actuator/health.

MethodPathBIAN action
GET/v1/service-domainService metadata
POST/v1/securities-loan-fulfillment-arrangement/initiateInitiate
GET/v1/securities-loan-fulfillment-arrangement/{crId}/retrieveRetrieve
PUT/v1/securities-loan-fulfillment-arrangement/{crId}/updateUpdate
PUT/v1/securities-loan-fulfillment-arrangement/{crId}/controlControl (suspend / resume / terminate)

INTBackend integrations

The systems and standards a real deployment of Securities Lending would transact with.

RUNRun it yourself

Each service domain is its own standalone Spring Boot repository — clone and run in seconds, or deploy onto Kubernetes with the bundled Helm chart behind the Cilium mesh.

# run this service domain standalone
git clone https://github.com/Sreenivas-Sadhu-Prabhakara/sd-securities-lending
mvn -f sd-securities-lending spring-boot:run
curl localhost:8080/v1/service-domain

# or deploy onto Kubernetes (Cilium eBPF mesh)
helm upgrade --install sd-securities-lending ./helm -n bian-operations

FAQQuestions

What is the BIAN “Fulfill” functional pattern?
A Fulfill service domain runs the full lifecycle of a product or service arrangement — origination, servicing and closure. Securities Lending applies it to the Securities Loan.
What is a BIAN service domain?
BIAN (the Banking Industry Architecture Network) decomposes a bank into independent service domains, each owning exactly one business capability. Securities Lending is the service domain for Securities; it manages the Securities Loan Fulfillment Arrangement and exposes it through standard BIAN action terms.
What business area does Securities Lending belong to?
Securities Lending sits in the Operations and Execution business area — the operational core that executes payments, positions, settlements and transactions. It runs in the bian-operations namespace as one independent Spring Boot microservice.
Is Securities Lending production-ready?
It is an educational reference implementation: a real BIAN REST API over an in-memory store, ready to be filled with domain logic. It is not a live bank and is not affiliated with BIAN.

SEEIn the landscape

Securities Lending is one of 162 BIAN service domains on the platform. Explore the rest:

▚ Platform overview The Master Catalog (162 domains) This repository ↗