FlowDiagram
Middleware & enterprise integrationMermaid

API-led connectivity (three layers) template

The system, process and experience API layering used by MuleSoft and most API programmes to decouple channels from back-ends. This integration diagram template contains 16 labelled components.

Open in the editor →
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  • Fully editable shapes and connectors, not a screenshot
  • Export PNG, SVG or PDF, or share it as a link
  • Private: the diagram never leaves your browser

Components in this integration diagram

  • Web
  • Experience API: web
  • Mobile
  • Experience API: mobile
  • Partners
  • Experience API: partner
  • Process API: customer 360
  • Process API: order fulfilment
  • System API: SAP
  • System API: Salesforce
  • System API: WMS
  • System API: payments
  • SAP S/4HANA
  • Salesforce
  • Warehouse system
  • API gateway: security & policies

How to use this integration diagram template

  1. Click Open in the editor. The integration diagram opens on a new page in FlowDiagram — nothing is uploaded and there is no sign-up.
  2. Rename, add or delete shapes and drag them where you want; connectors stay attached as things move.
  3. Drop in vendor logos from the library — 1,160 of them, including every AWS, Azure and Google Cloud service icon — or restyle it with the colour and theme controls.
  4. Prefer text? Edit the Mermaid source below and paste it in through ☰ → Import diagram (see the Mermaid editor); it imports as an editable diagram.
  5. Export to PNG, SVG or PDF, or press Ctrl+L for a link that carries the whole diagram.

Mermaid source

The whole template is the text below. Paste it into FlowDiagram, keep it in Git next to the code it describes, or hand it to an AI assistant to extend.

flowchart TB
  WEB((Web)) --> E1[Experience API: web]
  MOB((Mobile)) --> E2[Experience API: mobile]
  PART((Partners)) --> E3[Experience API: partner]
  E1 --> P1[Process API: customer 360]
  E2 --> P1
  E2 --> P2[Process API: order fulfilment]
  E3 --> P2
  P1 --> S1[System API: SAP]
  P1 --> S2[System API: Salesforce]
  P2 --> S1
  P2 --> S3[System API: WMS]
  P2 --> S4[System API: payments]
  S1 --> SAP[(SAP S/4HANA)]
  S2 --> SF[(Salesforce)]
  S3 --> WMS[(Warehouse system)]
  GW[API gateway: security & policies] --> E1
  GW --> E2
  GW --> E3

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