[wip] add openapi

src/openApi.json

@@ -0,0 +1,18 @@
+{
+  "openapi": "3.0.2",
+  "info": {
+    "title": "Signal K Charts API",
+    "version": "1.0"
+  },
+  "paths": {
+    "/charts": {
+      "get": {
+        "responses": {
+          "200": {
+            "description": "A list of available charts"
+          }
+        }
+      }
+    }
+  }
+}

src/plugin.js

@@ -5,6 +5,7 @@ const path = require('path')
 const fs = require('fs')
 const Charts = require('./charts')
 const {apiRoutePrefix} = require('./constants')
+const openApi = require('./openApi')
 
 const MIN_ZOOM = 1
 const MAX_ZOOM = 19
@@ -161,7 +162,8 @@ module.exports = function(app) {
       }
     },
     start,
-    stop
+    stop,
+    openApiPaths: () => openApi.paths
   }
 }