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Added technical sequence diagram to example docs

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Riaan du Plessis
2022-03-19 21:17:45 +02:00
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@@ -105,3 +105,37 @@ sequenceDiagram
John->>Bob: How about you?
Bob-->>John: Jolly good!
```
## Sequence Diagram: Blogging app service communication
```mermaid-example
sequenceDiagram
participant web as Web Browser
participant blog as Blog Service
participant account as Account Service
participant mail as Mail Service
participant db as Storage
Note over web,db: The user must be logged in to submit blog posts
web->>+account: Logs in using credentials
account->>db: Query stored accounts
db->>account: Respond with query result
alt Credentials not found
account->>web: Invalid credentials
else Credentials found
account->>-web: Successfully logged in
Note over web,db: When the user is authenticated, they can now submit new posts
web->>+blog: Submit new post
blog->>db: Store post data
par Notifications
blog--)mail: Send mail to blog subscribers
blog--)db: Store in-site notifications
and Response
blog-->>-web: Successfully posted
end
end
```