Convert to typescript (#26)

Author: nickpeihl

.eslintignore

@@ -0,0 +1 @@
+/target

.eslintrc

@@ -0,0 +1,16 @@
+{
+  "parser": "@typescript-eslint/parser",
+  "plugins": ["@typescript-eslint"],
+  "extends": [
+    "plugin:@typescript-eslint/recommended"
+  ],
+  "rules": {
+    "@typescript-eslint/member-ordering": 2,
+    "@typescript-eslint/camelcase": 0,
+    "@typescript-eslint/no-explicit-any": 0,
+    "@typescript-eslint/no-inferrable-types": 0,
+    "@typescript-eslint/explicit-function-return-type": 0,
+    "@typescript-eslint/no-non-null-assertion": 0,
+    "@typescript-eslint/interface-name-prefix": 0
+  }
+}

babel.config.js

@@ -10,7 +10,7 @@ module.exports = {
             corejs: 3,
           },
         ],
-      ]
+      ],
     },
     node: {
       presets: [
@@ -22,23 +22,21 @@ module.exports = {
             },
           },
         ],
-      ]
+      ],
     },
     test: {
       presets: [
         [
           '@babel/preset-env',
           {
             targets: {
-              node: 'current'
-            }
-          }
-        ]
-      ]
-    }
+              node: 'current',
+            },
+          },
+        ],
+      ],
+    },
   },
-
-  plugins: [
-    '@babel/plugin-proposal-class-properties'
-  ]
+  presets: ['@babel/preset-typescript'],
+  plugins: ['@babel/plugin-proposal-class-properties'],
 };

jest.config.js

@@ -0,0 +1,4 @@
+module.exports = {
+  preset: 'ts-jest',
+  testEnvironment: 'node',
+};

package-lock.json

@@ -4,11 +4,14 @@
   "description": "JavaScript client library for the Elastic Maps Service",
   "main": "target/node/index.js",
   "browser": "target/web/index.js",
+  "types": "target/index.d.ts",
   "scripts": {
-    "test": "jest",
-    "build": "yarn build-web && yarn build-node",
-    "build-web": "BABEL_ENV=web babel src --config-file=./babel.config.js --out-dir=target/web --delete-dir-on-start",
-    "build-node": "BABEL_ENV=node babel src --config-file=./babel.config.js --out-dir=target/node --delete-dir-on-start"
+    "lint": "tsc --noEmit && yarn lint-es",
+    "lint-es": "eslint --ext .ts,.tsx",
+    "test": "yarn lint && jest",
+    "build": "tsc --emitDeclarationOnly && yarn build-web && yarn build-node",
+    "build-web": "BABEL_ENV=web babel src --extensions \".ts,.tsx\" --config-file=./babel.config.js --out-dir=target/web --delete-dir-on-start",
+    "build-node": "BABEL_ENV=node babel src --extensions \".ts,.tsx\" --config-file=./babel.config.js --out-dir=target/node --delete-dir-on-start"
   },
   "repository": {
     "type": "git",
@@ -30,12 +33,24 @@
     "semver": "^6.3.0"
   },
   "devDependencies": {
-    "node-fetch": "^1.7.3",
     "@babel/cli": "^7.6.4",
     "@babel/core": "^7.5.5",
     "@babel/plugin-proposal-class-properties": "^7.5.5",
     "@babel/preset-env": "^7.5.5",
+    "@babel/preset-typescript": "^7.9.0",
+    "@types/jest": "^25.2.1",
+    "@types/lodash": "^4.14.150",
+    "@types/mapbox-gl": "^1.9.1",
+    "@types/node": "^13.13.5",
+    "@types/node-fetch": "^2.5.7",
+    "@types/semver": "^7.1.0",
+    "@typescript-eslint/eslint-plugin": "^2.33.0",
+    "@typescript-eslint/parser": "^2.33.0",
     "babel-jest": "^24.9.0",
-    "jest": "^24.9.0"
+    "eslint": "^7.0.0",
+    "jest": "^25.5.4",
+    "node-fetch": "^1.7.3",
+    "ts-jest": "^25.5.1",
+    "typescript": "^3.9.2"
   }
 }