Graphviz as a service

• Created to visualize the intermediate results of an algorithm
• HTTP and GET for easy use (embed in webpages with CORS)
• Golang because I am learning/liking it

• Install graphviz
• Run the program go run main.go
  • This will start the http server at port 9292
• Use the endpoint
  • curl -G -v "http://localhost:9292/dot/to/svg" --data-urlencode "digraph{a->{1,2,3}}"
  • curl -G -v "http://localhost:9292/dot/to/svg" --data-urlencode "@examples/service.dot"
  • curl -G -v "http://localhost:9292/dot/to/png" --data-urlencode "@examples/by-two.dot"

$ GOOS=linux go build
$ GRAPH_VERSION=1
$ docker build -t graph:${GRAPH_VERSION} .

$ docker run --rm -it -p 9292:9292 graph:${GRAPH_VERSION}