41 lines
1.1 KiB
Markdown
41 lines
1.1 KiB
Markdown
## System
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The customer and the merchant must have a supporting infrastructure to make and accept payments using a bolt card.
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### Interaction
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```mermaid
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flowchart TB
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BoltCard(bolt card)-. NFC .-PointOfSale(point of sale)
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MerchantServer(merchant server)-. LNURLw .-BoltCardServer(bolt card server)
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LightningNodeA(lightning node)-. lightning network .-LightningNodeB(lightning node)
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subgraph merchant
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PointOfSale<-->MerchantServer
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LightningNodeB-->MerchantServer
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end
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subgraph customer
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BoltCardServer-->LightningNodeA
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end
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```
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### Sequencing
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```mermaid
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sequenceDiagram
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participant p1 as customer bolt card
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participant p2 as merchant point of sale
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participant p3 as merchant server
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participant p4 as customer bolt card server
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participant p5 as customer lightining node
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participant p6 as merchant lightning node
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p1->>p2: NFC read
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p2->>p3: API call
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p3->>p4: LNURLw request
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p4->>p3: LNURLw response
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p3->>p4: LNURLw callback
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p4->>p3: LNURLw response
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p4->>p5: API call
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p5-->>p6: lightning network payment
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p6->>p3: payment notification
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p3->>p2: user notification
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```
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