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7.6 KiB
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Examples
This page contains a collection of examples of diagrams and charts that can be created through mermaid and its myriad applications.
If you wish to learn how to support mermaid on your webpage, read the Beginner's Guide.
If you wish to learn about mermaid's syntax, Read the Diagram Syntax section.
Basic Pie Chart
pie title NETFLIX
"Time spent looking for movie" : 90
"Time spent watching it" : 10
pie title NETFLIX
"Time spent looking for movie" : 90
"Time spent watching it" : 10
pie title What Voldemort doesn't have?
"FRIENDS" : 2
"FAMILY" : 3
"NOSE" : 45
pie title What Voldemort doesn't have?
"FRIENDS" : 2
"FAMILY" : 3
"NOSE" : 45
Basic sequence diagram
sequenceDiagram
Alice ->> Bob: Hello Bob, how are you?
Bob-->>John: How about you John?
Bob--x Alice: I am good thanks!
Bob-x John: I am good thanks!
Note right of John: Bob thinks a long<br/>long time, so long<br/>that the text does<br/>not fit on a row.
Bob-->Alice: Checking with John...
Alice->John: Yes... John, how are you?
sequenceDiagram
Alice ->> Bob: Hello Bob, how are you?
Bob-->>John: How about you John?
Bob--x Alice: I am good thanks!
Bob-x John: I am good thanks!
Note right of John: Bob thinks a long<br/>long time, so long<br/>that the text does<br/>not fit on a row.
Bob-->Alice: Checking with John...
Alice->John: Yes... John, how are you?
Basic flowchart
graph LR
A[Square Rect] -- Link text --> B((Circle))
A --> C(Round Rect)
B --> D{Rhombus}
C --> D
graph LR
A[Square Rect] -- Link text --> B((Circle))
A --> C(Round Rect)
B --> D{Rhombus}
C --> D
Larger flowchart with some styling
graph TB
sq[Square shape] --> ci((Circle shape))
subgraph A
od>Odd shape]-- Two line<br/>edge comment --> ro
di{Diamond with <br/> line break} -.-> ro(Rounded<br>square<br>shape)
di==>ro2(Rounded square shape)
end
%% Notice that no text in shape are added here instead that is appended further down
e --> od3>Really long text with linebreak<br>in an Odd shape]
%% Comments after double percent signs
e((Inner / circle<br>and some odd <br>special characters)) --> f(,.?!+-*ز)
cyr[Cyrillic]-->cyr2((Circle shape Начало));
classDef green fill:#9f6,stroke:#333,stroke-width:2px;
classDef orange fill:#f96,stroke:#333,stroke-width:4px;
class sq,e green
class di orange
graph TB
sq[Square shape] --> ci((Circle shape))
subgraph A
od>Odd shape]-- Two line<br/>edge comment --> ro
di{Diamond with <br/> line break} -.-> ro(Rounded<br>square<br>shape)
di==>ro2(Rounded square shape)
end
%% Notice that no text in shape are added here instead that is appended further down
e --> od3>Really long text with linebreak<br>in an Odd shape]
%% Comments after double percent signs
e((Inner / circle<br>and some odd <br>special characters)) --> f(,.?!+-*ز)
cyr[Cyrillic]-->cyr2((Circle shape Начало));
classDef green fill:#9f6,stroke:#333,stroke-width:2px;
classDef orange fill:#f96,stroke:#333,stroke-width:4px;
class sq,e green
class di orange
SequenceDiagram: Loops, alt and opt
sequenceDiagram
loop Daily query
Alice->>Bob: Hello Bob, how are you?
alt is sick
Bob->>Alice: Not so good :(
else is well
Bob->>Alice: Feeling fresh like a daisy
end
opt Extra response
Bob->>Alice: Thanks for asking
end
end
sequenceDiagram
loop Daily query
Alice->>Bob: Hello Bob, how are you?
alt is sick
Bob->>Alice: Not so good :(
else is well
Bob->>Alice: Feeling fresh like a daisy
end
opt Extra response
Bob->>Alice: Thanks for asking
end
end
SequenceDiagram: Message to self in loop
sequenceDiagram
participant Alice
participant Bob
Alice->>John: Hello John, how are you?
loop HealthCheck
John->>John: Fight against hypochondria
end
Note right of John: Rational thoughts<br/>prevail...
John-->>Alice: Great!
John->>Bob: How about you?
Bob-->>John: Jolly good!
sequenceDiagram
participant Alice
participant Bob
Alice->>John: Hello John, how are you?
loop HealthCheck
John->>John: Fight against hypochondria
end
Note right of John: Rational thoughts<br/>prevail...
John-->>Alice: Great!
John->>Bob: How about you?
Bob-->>John: Jolly good!
Sequence Diagram: Blogging app service communication
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
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
A commit flow diagram.
gitGraph:
commit "Ashish"
branch newbranch
checkout newbranch
commit id:"1111"
commit tag:"test"
checkout main
commit type: HIGHLIGHT
commit
merge newbranch
commit
branch b2
commit
gitGraph:
commit "Ashish"
branch newbranch
checkout newbranch
commit id:"1111"
commit tag:"test"
checkout main
commit type: HIGHLIGHT
commit
merge newbranch
commit
branch b2
commit