Feature/wkt support (#86)

* Add WKT Support

HitConverter recognizes geometries in WKT format and changes them to GeoJSON.

* Update CHANGELOG.md

CHANGELOG.md

@@ -2,6 +2,10 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
+## Unreleased
+### Fixed
+* Geometries stored as WKT will now work correctly
+
 ## [3.7.0] - 03-27-2024
 ### Added
 * Support for OpenSearch indexes

package.json

@@ -9,7 +9,7 @@
     "test": "standard && tape test/*.js | tap-spec"
   },
   "keywords": [
-    "koop"
+    "koop", "elasticsearch"
   ],
   "author": "Danny Hatcher",
   "license": "Apache-2.0",
@@ -22,11 +22,12 @@
     "@mapbox/tilebelt": "^1.0.2",
     "flat": "^5.0.0",
     "h3-js": "^3.7.2",
-    "moment": "2.20.1",
+    "moment": "2.29.4",
     "ngeohash": "^0.6.3",
     "polygon-splitter": "0.0.8",
     "proj4": "2.4.4",
-    "sqlite-parser": "1.0.1"
+    "sqlite-parser": "1.0.1",
+    "@terraformer/wkt": "^2.2.1"
   },
   "repository": {
     "type": "git",

src/utils/hitConverter.js

@@ -5,6 +5,7 @@ const logger = new Logger(config);
 const geohash = require('ngeohash');
 const flatten = require('flat');
 const unflatten = require('flat').unflatten;
+const Terraformer = require('@terraformer/wkt');
 
 class HitConverter{
 
@@ -100,9 +101,9 @@ class HitConverter{
             if(feature.geometry.type === "polygon") {
                 // Koop expects a capital P and ES has lowercase
                 feature.geometry.type = "Polygon";
-            } else if(feature.geometry.type === "multipolygon"){
+            } else if(feature.geometry.type === "multipolygon") {
                 feature.geometry.type = "Multipolygon";
-            } else if (undefined === feature.geometry.type){
+            }  else if (undefined === feature.geometry.type){
                 // point
                 var coords = undefined;
 
@@ -133,6 +134,15 @@ class HitConverter{
                             coords = feature.geometry;
                         }
                     }
+                } else if(typeof feature.geometry === 'string'){
+                    // could be WKT
+                    try {
+                        feature.geometry = Terraformer.wktToGeoJSON(feature.geometry);
+                        pointType = feature.geometry.type;
+                        coords = feature.geometry.coordinates;
+                    } catch (e) {
+                        logger.warn(e.message);
+                    }
                 } else {
                     pointType = "Point";
                     if(feature.geometry.hasOwnProperty('lon')){