https://github.com/tomwright/mermaid-server

Go implementation of a HTTP server to allow remote generation of mermaid-js diagrams without any pre-requisites installed locally.
https://github.com/tomwright/mermaid-server

diagram diagram-generator http mermaid mermaid-charting-language mermaid-cli mermaid-diagrams mermaidjs

Last synced: 7 days ago
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Go implementation of a HTTP server to allow remote generation of mermaid-js diagrams without any pre-requisites installed locally.

• Host: GitHub
• URL: https://github.com/tomwright/mermaid-server
• Owner: TomWright
• Created: 2020-04-06T22:23:12.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2024-03-28T12:53:30.000Z (9 months ago)
• Last Synced: 2024-12-07T06:41:43.583Z (15 days ago)
• Topics: diagram, diagram-generator, http, mermaid, mermaid-charting-language, mermaid-cli, mermaid-diagrams, mermaidjs
• Language: Go
• Homepage:
• Size: 284 KB
• Stars: 318
• Watchers: 10
• Forks: 44
• Open Issues: 12
• Metadata Files:
  • Readme: README.md

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README

        
# mermaid-server

Use mermaid-js to generate diagrams in a HTTP endpoint.

While this currently serves the diagrams via HTTP, it could easily be manipulated to server diagrams via other means.

## Basic usage

### Docker

Run the container:

```

docker run -d --name mermaid-server -p 80:80 tomwright/mermaid-server:latest

```

### Manually as a go command

Start the HTTP server:

```

go run cmd/app/main.go --mermaid=./mermaidcli/node_modules/.bin/mmdc --in=./in --out=./out

```

### Diagram creation

Use the query param 'type' to change between 'png' and 'svg' defaults to 'svg'.

#### POST

Send a CURL request to generate a diagram via `POST`:

```

curl --location --request POST 'http://localhost:80/generate' \

--header 'Content-Type: text/plain' \

--data-raw 'graph LR

    A-->B

    B-->C

    C-->D

    C-->F

'

```

#### GET

Send a CURL request to generate a diagram via `GET`... send in url encoded data under the `data` query param:

```

curl --location --request GET 'http://localhost:80/generate?data=graph%20LR%0A%0A%20%20%20%20A--%3EB%0A%20%20%20%20B--%3EC%0A%20%20%20%20C--%3ED%0A%20%20%20%20C--%3EF%0A'

```

![Example request in Postman](example.png "Example request in Postman")

### Caching

All generated diagram input and output will be cached for 1 hour. The cache time is reset whenever a cached diagram is accessed.