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architecture.mdx

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title Architecture Overview
description System architecture of the Bridgelet platform

Architecture Overview

System Flow

graph LR
  FE[bridgelet<br/>Next.js frontend]
  SDK[bridgelet-sdk<br/>NestJS backend]
  CORE[bridgelet-core<br/>Soroban contracts]
  STELLAR[Stellar Network]

  FE -->|POST /send| SDK
  FE -->|POST /claims/redeem| SDK
  SDK -->|invoke contract| CORE
  CORE -->|on-chain tx| STELLAR
  SDK -->|horizon API| STELLAR
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Components

bridgelet (frontend)

Next.js app serving the sender send-flow and recipient claim flow.

bridgelet-sdk

NestJS service managing ephemeral account lifecycle, claim authentication, and webhook delivery.

bridgelet-core

Soroban smart contracts enforcing on-chain restrictions: funding source, amount cap, expiry, and sweep.

Stellar Network

The bridgelet-core contracts run on Stellar's Soroban environment (testnet and mainnet).