To get started with GraphJS, you need to include graph.js file to your project. Then you can initiate it with GraphJS.init function.
Simply, add this code into your HTML, just before the end of body tag. Don't forget to replace your public ID, theme, color and language options. Your public ID should be a string which can be provided by GraphJS after Setup process. Theme option should be a string, and it has to be either 'light' or 'dark'. Color option should be a string representing any color of your preference in HEX format. Also, please note, as of the time of this writing, the only languages supported by GraphJS are French and English. If the language option is left blank, the tags will display in English. For most updated languages, you may check GraphJS Github Repository