pikturr

Why?

swagger is great tool to describe your restful api in a clear and structured way. But as the spec gets longer and longer it could be sometimes useful to zoom out and look at your api from 10,000 feet.

pikturr is a very simple tool to transform your swagger api spec into a simple uml class diagram.

What?

I'm new to the javascript and node party. So please be patient and do not expect the ultra efficient javascript ninja code. I find a visual representation of an api spec useful and I want to learn js and node...so I wrote this tool. It's as simple as that.

How?

Because pikturr makes use of node-plantuml, which in turn makes use of...ehhh...plantuml, you have to fulfill some preconditions:

• you need to have the java executable in your path
• you must have graphviz installed
• the GRAPHVIZ_DOT environment variable must point the dot executable of graphviz (which is 'dot')
• (e.g. in Windows, 'GRAPHVIZ_DOT=C:\Program Files (x86)\Graphviz2.38\bin\dot.exe' )

That's it for now.

Just get the code, look inside and you'll find out.

From the command line:

cd pikturr
npm install
// supply the url of the swagger as an argument
node index.js 'http://petstore.swagger.io/v2/swagger.yaml'

Pikturr supports a few command line arguments:
node index.js [-o|--output outputFilePath] [-u|--uml] url-or-filePath

E.g.

• node index.js -o someDir/petstore-swagger.plantuml --uml http://petstore.swagger.io/v2/swagger.json
  Download the spec at: http://petstore.swagger.io/v2/swagger.json
  and output uml script in a file named: someDir/petstore-swagger.plantuml

• node index.js test/my-app-swagger.yaml
  Read spec from local file at: test/my-app-swagger.yaml
  and output png diagram in a file named: swagger.png

If the -o or --output flag is not passed, the output file will be created in the working directory, and will be named from the last token in the input reference.

If the -u or --uml flag is passed a plantuml script will be generated,
else a png diagram will be generated.

As a module:

const pikturr = require(pikturr)
pikturr.generate('http://petstore.swagger.io/v2/swagger.yaml')

Running Unit Tests

To run the test suite issue the following command:
npm test

Feel free to extend the tests suite.

What next?

• re-structure code to meet nodejs project structure standards
• add some tests
• provide a rest api
• provide a simple web frontend
• provide some configurable options