DiData - Conding challenge Laravel

Presentation of the challenge

In this challenge, we'll create a Rest API Laravel.

• Part one: generate endpoints to create the graphs, their nodes, and relations between nodes.

• Part two: generate the artisan commands.

Developement

Models :

• Graph :

  • Each graph has an id, a unique name, description, created_at and updated_at;

  • Each graph can have a set of nodes;

• Node :

  • Each node has an id;

  • Node has only one graph;

  • Nodes can be linked with relation;

• Relation :

  • Each relation has parent node and child node;

  • relation has only one graph;

EndPoints :

Method	Routes	Actions
POST	api/empty_graph	CreateEmptyGraph()
POST	api/graph	CreateGraph(...)
PUT	api//graph/{id}	EditGraph(...)
DELETE	api/graph/{id}	destroy(...)
GET	api/graphs	AllGraph_meta_data()
GET	api/graphs/{id	singleGraph(...)
POST	api/node	AddNode(...)
DELETE	api/node/{id}	destroy(...)
POST	api/relation	AddRelation(...)

Artisan Commands :

• php artisan graph:gen {nbNode}

  • This command should create a random graph with {nbNode} nodes and random relations.

• php artisan graph:clear

  • This command should delete all empty graphs.

• php artisan graph:stats {id}

  • This command display graphs stats (display the graph meta data, number of nodes, number of relations) by graph id.

Data Base :

• MySql