diff --git a/.babelrc b/.babelrc
index b39b1b2..fedea39 100644
--- a/.babelrc
+++ b/.babelrc
@@ -1,7 +1,29 @@
 {
   "presets": [ 
     [ "@babel/preset-env",
-     { "targets": { "node": 12 } } ],
+      {
+        "targets": {
+          "node": 12
+        }
+      }],
     "@babel/preset-flow"],
+   "overrides": [
+    {
+      "test": ["./src/**/*.ts"],
+      "presets": [
+        "@babel/preset-typescript",
+        [
+          "@babel/preset-env",
+          {
+            "targets": {
+              "node": 12,
+            }
+          }
+        ],
+      ]
+    }
+  ],
   "plugins": ["istanbul"]
-}
\ No newline at end of file
+}
+
+
diff --git a/.flowconfig b/.flowconfig
index 68524f6..64e7b2f 100644
--- a/.flowconfig
+++ b/.flowconfig
@@ -3,10 +3,5 @@
 .*/node_modules/.staging/*
 .*/node_modules/npm/*
 
-[include]
-
-[libs]
-
 [options]
-
-[lints]
+module.file_ext=.ts
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index 199da1c..6a06a31 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -575,6 +575,204 @@
         "@babel/types": "^7.4.4"
       }
     },
+    "@babel/helper-create-class-features-plugin": {
+      "version": "7.17.6",
+      "resolved": "https://registry.npmjs.org/@babel/helper-create-class-features-plugin/-/helper-create-class-features-plugin-7.17.6.tgz",
+      "integrity": "sha512-SogLLSxXm2OkBbSsHZMM4tUi8fUzjs63AT/d0YQIzr6GSd8Hxsbk2KYDX0k0DweAzGMj/YWeiCsorIdtdcW8Eg==",
+      "dev": true,
+      "requires": {
+        "@babel/helper-annotate-as-pure": "^7.16.7",
+        "@babel/helper-environment-visitor": "^7.16.7",
+        "@babel/helper-function-name": "^7.16.7",
+        "@babel/helper-member-expression-to-functions": "^7.16.7",
+        "@babel/helper-optimise-call-expression": "^7.16.7",
+        "@babel/helper-replace-supers": "^7.16.7",
+        "@babel/helper-split-export-declaration": "^7.16.7"
+      },
+      "dependencies": {
+        "@babel/code-frame": {
+          "version": "7.16.7",
+          "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.16.7.tgz",
+          "integrity": "sha512-iAXqUn8IIeBTNd72xsFlgaXHkMBMt6y4HJp1tIaK465CWLT/fG1aqB7ykr95gHHmlBdGbFeWWfyB4NJJ0nmeIg==",
+          "dev": true,
+          "requires": {
+            "@babel/highlight": "^7.16.7"
+          }
+        },
+        "@babel/generator": {
+          "version": "7.17.7",
+          "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.17.7.tgz",
+          "integrity": "sha512-oLcVCTeIFadUoArDTwpluncplrYBmTCCZZgXCbgNGvOBBiSDDK3eWO4b/+eOTli5tKv1lg+a5/NAXg+nTcei1w==",
+          "dev": true,
+          "requires": {
+            "@babel/types": "^7.17.0",
+            "jsesc": "^2.5.1",
+            "source-map": "^0.5.0"
+          }
+        },
+        "@babel/helper-annotate-as-pure": {
+          "version": "7.16.7",
+          "resolved": "https://registry.npmjs.org/@babel/helper-annotate-as-pure/-/helper-annotate-as-pure-7.16.7.tgz",
+          "integrity": "sha512-s6t2w/IPQVTAET1HitoowRGXooX8mCgtuP5195wD/QJPV6wYjpujCGF7JuMODVX2ZAJOf1GT6DT9MHEZvLOFSw==",
+          "dev": true,
+          "requires": {
+            "@babel/types": "^7.16.7"
+          }
+        },
+        "@babel/helper-function-name": {
+          "version": "7.16.7",
+          "resolved": "https://registry.npmjs.org/@babel/helper-function-name/-/helper-function-name-7.16.7.tgz",
+          "integrity": "sha512-QfDfEnIUyyBSR3HtrtGECuZ6DAyCkYFp7GHl75vFtTnn6pjKeK0T1DB5lLkFvBea8MdaiUABx3osbgLyInoejA==",
+          "dev": true,
+          "requires": {
+            "@babel/helper-get-function-arity": "^7.16.7",
+            "@babel/template": "^7.16.7",
+            "@babel/types": "^7.16.7"
+          }
+        },
+        "@babel/helper-get-function-arity": {
+          "version": "7.16.7",
+          "resolved": "https://registry.npmjs.org/@babel/helper-get-function-arity/-/helper-get-function-arity-7.16.7.tgz",
+          "integrity": "sha512-flc+RLSOBXzNzVhcLu6ujeHUrD6tANAOU5ojrRx/as+tbzf8+stUCj7+IfRRoAbEZqj/ahXEMsjhOhgeZsrnTw==",
+          "dev": true,
+          "requires": {
+            "@babel/types": "^7.16.7"
+          }
+        },
+        "@babel/helper-hoist-variables": {
+          "version": "7.16.7",
+          "resolved": "https://registry.npmjs.org/@babel/helper-hoist-variables/-/helper-hoist-variables-7.16.7.tgz",
+          "integrity": "sha512-m04d/0Op34H5v7pbZw6pSKP7weA6lsMvfiIAMeIvkY/R4xQtBSMFEigu9QTZ2qB/9l22vsxtM8a+Q8CzD255fg==",
+          "dev": true,
+          "requires": {
+            "@babel/types": "^7.16.7"
+          }
+        },
+        "@babel/helper-member-expression-to-functions": {
+          "version": "7.17.7",
+          "resolved": "https://registry.npmjs.org/@babel/helper-member-expression-to-functions/-/helper-member-expression-to-functions-7.17.7.tgz",
+          "integrity": "sha512-thxXgnQ8qQ11W2wVUObIqDL4p148VMxkt5T/qpN5k2fboRyzFGFmKsTGViquyM5QHKUy48OZoca8kw4ajaDPyw==",
+          "dev": true,
+          "requires": {
+            "@babel/types": "^7.17.0"
+          }
+        },
+        "@babel/helper-optimise-call-expression": {
+          "version": "7.16.7",
+          "resolved": "https://registry.npmjs.org/@babel/helper-optimise-call-expression/-/helper-optimise-call-expression-7.16.7.tgz",
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+          "dev": true,
+          "requires": {
+            "@babel/types": "^7.16.7"
+          }
+        },
+        "@babel/helper-replace-supers": {
+          "version": "7.16.7",
+          "resolved": "https://registry.npmjs.org/@babel/helper-replace-supers/-/helper-replace-supers-7.16.7.tgz",
+          "integrity": "sha512-y9vsWilTNaVnVh6xiJfABzsNpgDPKev9HnAgz6Gb1p6UUwf9NepdlsV7VXGCftJM+jqD5f7JIEubcpLjZj5dBw==",
+          "dev": true,
+          "requires": {
+            "@babel/helper-environment-visitor": "^7.16.7",
+            "@babel/helper-member-expression-to-functions": "^7.16.7",
+            "@babel/helper-optimise-call-expression": "^7.16.7",
+            "@babel/traverse": "^7.16.7",
+            "@babel/types": "^7.16.7"
+          }
+        },
+        "@babel/helper-split-export-declaration": {
+          "version": "7.16.7",
+          "resolved": "https://registry.npmjs.org/@babel/helper-split-export-declaration/-/helper-split-export-declaration-7.16.7.tgz",
+          "integrity": "sha512-xbWoy/PFoxSWazIToT9Sif+jJTlrMcndIsaOKvTA6u7QEo7ilkRZpjew18/W3c7nm8fXdUDXh02VXTbZ0pGDNw==",
+          "dev": true,
+          "requires": {
+            "@babel/types": "^7.16.7"
+          }
+        },
+        "@babel/highlight": {
+          "version": "7.16.10",
+          "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.16.10.tgz",
+          "integrity": "sha512-5FnTQLSLswEj6IkgVw5KusNUUFY9ZGqe/TRFnP/BKYHYgfh7tc+C7mwiy95/yNP7Dh9x580Vv8r7u7ZfTBFxdw==",
+          "dev": true,
+          "requires": {
+            "@babel/helper-validator-identifier": "^7.16.7",
+            "chalk": "^2.0.0",
+            "js-tokens": "^4.0.0"
+          }
+        },
+        "@babel/parser": {
+          "version": "7.17.8",
+          "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.17.8.tgz",
+          "integrity": "sha512-BoHhDJrJXqcg+ZL16Xv39H9n+AqJ4pcDrQBGZN+wHxIysrLZ3/ECwCBUch/1zUNhnsXULcONU3Ei5Hmkfk6kiQ==",
+          "dev": true
+        },
+        "@babel/template": {
+          "version": "7.16.7",
+          "resolved": "https://registry.npmjs.org/@babel/template/-/template-7.16.7.tgz",
+          "integrity": "sha512-I8j/x8kHUrbYRTUxXrrMbfCa7jxkE7tZre39x3kjr9hvI82cK1FfqLygotcWN5kdPGWcLdWMHpSBavse5tWw3w==",
+          "dev": true,
+          "requires": {
+            "@babel/code-frame": "^7.16.7",
+            "@babel/parser": "^7.16.7",
+            "@babel/types": "^7.16.7"
+          }
+        },
+        "@babel/traverse": {
+          "version": "7.17.3",
+          "resolved": "https://registry.npmjs.org/@babel/traverse/-/traverse-7.17.3.tgz",
+          "integrity": "sha512-5irClVky7TxRWIRtxlh2WPUUOLhcPN06AGgaQSB8AEwuyEBgJVuJ5imdHm5zxk8w0QS5T+tDfnDxAlhWjpb7cw==",
+          "dev": true,
+          "requires": {
+            "@babel/code-frame": "^7.16.7",
+            "@babel/generator": "^7.17.3",
+            "@babel/helper-environment-visitor": "^7.16.7",
+            "@babel/helper-function-name": "^7.16.7",
+            "@babel/helper-hoist-variables": "^7.16.7",
+            "@babel/helper-split-export-declaration": "^7.16.7",
+            "@babel/parser": "^7.17.3",
+            "@babel/types": "^7.17.0",
+            "debug": "^4.1.0",
+            "globals": "^11.1.0"
+          }
+        },
+        "@babel/types": {
+          "version": "7.17.0",
+          "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.17.0.tgz",
+          "integrity": "sha512-TmKSNO4D5rzhL5bjWFcVHHLETzfQ/AmbKpKPOSjlP0WoHZ6L911fgoOKY4Alp/emzG4cHJdyN49zpgkbXFEHHw==",
+          "dev": true,
+          "requires": {
+            "@babel/helper-validator-identifier": "^7.16.7",
+            "to-fast-properties": "^2.0.0"
+          }
+        },
+        "debug": {
+          "version": "4.3.4",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.4.tgz",
+          "integrity": "sha512-PRWFHuSU3eDtQJPvnNY7Jcket1j0t5OuOsFzPPzsekD52Zl8qUfFIPEiswXqIvHWGVHOgX+7G/vCNNhehwxfkQ==",
+          "dev": true,
+          "requires": {
+            "ms": "2.1.2"
+          }
+        },
+        "globals": {
+          "version": "11.12.0",
+          "resolved": "https://registry.npmjs.org/globals/-/globals-11.12.0.tgz",
+          "integrity": "sha512-WOBp/EEGUiIsJSp7wcv/y6MO+lV9UoncWqxuFfm8eBwzWNgyfBd6Gz+IeKQ9jCmyhoH99g15M3T+QaVHFjizVA==",
+          "dev": true
+        },
+        "js-tokens": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-4.0.0.tgz",
+          "integrity": "sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ==",
+          "dev": true
+        },
+        "ms": {
+          "version": "2.1.2",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
+          "dev": true
+        }
+      }
+    },
     "@babel/helper-define-map": {
       "version": "7.5.5",
       "resolved": "https://registry.npmjs.org/@babel/helper-define-map/-/helper-define-map-7.5.5.tgz",
@@ -586,6 +784,27 @@
         "lodash": "^4.17.13"
       }
     },
+    "@babel/helper-environment-visitor": {
+      "version": "7.16.7",
+      "resolved": "https://registry.npmjs.org/@babel/helper-environment-visitor/-/helper-environment-visitor-7.16.7.tgz",
+      "integrity": "sha512-SLLb0AAn6PkUeAfKJCCOl9e1R53pQlGAfc4y4XuMRZfqeMYLE0dM1LMhqbGAlGQY0lfw5/ohoYWAe9V1yibRag==",
+      "dev": true,
+      "requires": {
+        "@babel/types": "^7.16.7"
+      },
+      "dependencies": {
+        "@babel/types": {
+          "version": "7.17.0",
+          "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.17.0.tgz",
+          "integrity": "sha512-TmKSNO4D5rzhL5bjWFcVHHLETzfQ/AmbKpKPOSjlP0WoHZ6L911fgoOKY4Alp/emzG4cHJdyN49zpgkbXFEHHw==",
+          "dev": true,
+          "requires": {
+            "@babel/helper-validator-identifier": "^7.16.7",
+            "to-fast-properties": "^2.0.0"
+          }
+        }
+      }
+    },
     "@babel/helper-explode-assignable-expression": {
       "version": "7.1.0",
       "resolved": "https://registry.npmjs.org/@babel/helper-explode-assignable-expression/-/helper-explode-assignable-expression-7.1.0.tgz",
@@ -725,6 +944,18 @@
         "@babel/types": "^7.4.4"
       }
     },
+    "@babel/helper-validator-identifier": {
+      "version": "7.16.7",
+      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.16.7.tgz",
+      "integrity": "sha512-hsEnFemeiW4D08A5gUAZxLBTXpZ39P+a+DGDsHw1yxqyQ/jzFEnxf5uTEGp+3bzAbNOxU1paTgYS4ECU/IgfDw==",
+      "dev": true
+    },
+    "@babel/helper-validator-option": {
+      "version": "7.16.7",
+      "resolved": "https://registry.npmjs.org/@babel/helper-validator-option/-/helper-validator-option-7.16.7.tgz",
+      "integrity": "sha512-TRtenOuRUVo9oIQGPC5G9DgK4743cdxvtOw0weQNpZXaS16SCBi5MNjZF8vba3ETURjZpTbVn7Vvcf2eAwFozQ==",
+      "dev": true
+    },
     "@babel/helper-wrap-function": {
       "version": "7.2.0",
       "resolved": "https://registry.npmjs.org/@babel/helper-wrap-function/-/helper-wrap-function-7.2.0.tgz",
@@ -955,6 +1186,23 @@
         "@babel/helper-plugin-utils": "^7.0.0"
       }
     },
+    "@babel/plugin-syntax-typescript": {
+      "version": "7.16.7",
+      "resolved": "https://registry.npmjs.org/@babel/plugin-syntax-typescript/-/plugin-syntax-typescript-7.16.7.tgz",
+      "integrity": "sha512-YhUIJHHGkqPgEcMYkPCKTyGUdoGKWtopIycQyjJH8OjvRgOYsXsaKehLVPScKJWAULPxMa4N1vCe6szREFlZ7A==",
+      "dev": true,
+      "requires": {
+        "@babel/helper-plugin-utils": "^7.16.7"
+      },
+      "dependencies": {
+        "@babel/helper-plugin-utils": {
+          "version": "7.16.7",
+          "resolved": "https://registry.npmjs.org/@babel/helper-plugin-utils/-/helper-plugin-utils-7.16.7.tgz",
+          "integrity": "sha512-Qg3Nk7ZxpgMrsox6HreY1ZNKdBq7K72tDSliA6dCl5f007jR4ne8iD5UzuNnCJH2xBf2BEEVGr+/OL6Gdp7RxA==",
+          "dev": true
+        }
+      }
+    },
     "@babel/plugin-transform-arrow-functions": {
       "version": "7.2.0",
       "resolved": "https://registry.npmjs.org/@babel/plugin-transform-arrow-functions/-/plugin-transform-arrow-functions-7.2.0.tgz",
@@ -1355,6 +1603,25 @@
         "@babel/helper-plugin-utils": "^7.0.0"
       }
     },
+    "@babel/plugin-transform-typescript": {
+      "version": "7.16.8",
+      "resolved": "https://registry.npmjs.org/@babel/plugin-transform-typescript/-/plugin-transform-typescript-7.16.8.tgz",
+      "integrity": "sha512-bHdQ9k7YpBDO2d0NVfkj51DpQcvwIzIusJ7mEUaMlbZq3Kt/U47j24inXZHQ5MDiYpCs+oZiwnXyKedE8+q7AQ==",
+      "dev": true,
+      "requires": {
+        "@babel/helper-create-class-features-plugin": "^7.16.7",
+        "@babel/helper-plugin-utils": "^7.16.7",
+        "@babel/plugin-syntax-typescript": "^7.16.7"
+      },
+      "dependencies": {
+        "@babel/helper-plugin-utils": {
+          "version": "7.16.7",
+          "resolved": "https://registry.npmjs.org/@babel/helper-plugin-utils/-/helper-plugin-utils-7.16.7.tgz",
+          "integrity": "sha512-Qg3Nk7ZxpgMrsox6HreY1ZNKdBq7K72tDSliA6dCl5f007jR4ne8iD5UzuNnCJH2xBf2BEEVGr+/OL6Gdp7RxA==",
+          "dev": true
+        }
+      }
+    },
     "@babel/plugin-transform-unicode-regex": {
       "version": "7.6.2",
       "resolved": "https://registry.npmjs.org/@babel/plugin-transform-unicode-regex/-/plugin-transform-unicode-regex-7.6.2.tgz",
@@ -1461,15 +1728,28 @@
         "semver": "^5.5.0"
       },
       "dependencies": {
+        "browserslist": {
+          "version": "4.7.0",
+          "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.7.0.tgz",
+          "integrity": "sha512-9rGNDtnj+HaahxiVV38Gn8n8Lr8REKsel68v1sPFfIGEK6uSXTY3h9acgiT1dZVtOOUtifo/Dn8daDQ5dUgVsA==",
+          "dev": true,
+          "requires": {
+            "caniuse-lite": "^1.0.30000989",
+            "electron-to-chromium": "^1.3.247",
+            "node-releases": "^1.1.29"
+          }
+        },
         "caniuse-lite": {
           "version": "1.0.30000999",
           "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30000999.tgz",
-          "integrity": "sha512-1CUyKyecPeksKwXZvYw0tEoaMCo/RwBlXmEtN5vVnabvO0KPd9RQLcaAuR9/1F+KDMv6esmOFWlsXuzDk+8rxg=="
+          "integrity": "sha512-1CUyKyecPeksKwXZvYw0tEoaMCo/RwBlXmEtN5vVnabvO0KPd9RQLcaAuR9/1F+KDMv6esmOFWlsXuzDk+8rxg==",
+          "dev": true
         },
         "electron-to-chromium": {
           "version": "1.3.279",
           "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.279.tgz",
-          "integrity": "sha512-iiBT/LeUWKnhd7d/n4IZsx/NIacs7gjFgAT1q5/i0POiS+5d0rVnbbyCRMmsBW7vaQJOUhWyh4PsyIVZb/Ax5Q=="
+          "integrity": "sha512-iiBT/LeUWKnhd7d/n4IZsx/NIacs7gjFgAT1q5/i0POiS+5d0rVnbbyCRMmsBW7vaQJOUhWyh4PsyIVZb/Ax5Q==",
+          "dev": true
         }
       }
     },
@@ -1483,6 +1763,25 @@
         "@babel/plugin-transform-flow-strip-types": "^7.0.0"
       }
     },
+    "@babel/preset-typescript": {
+      "version": "7.16.7",
+      "resolved": "https://registry.npmjs.org/@babel/preset-typescript/-/preset-typescript-7.16.7.tgz",
+      "integrity": "sha512-WbVEmgXdIyvzB77AQjGBEyYPZx+8tTsO50XtfozQrkW8QB2rLJpH2lgx0TRw5EJrBxOZQ+wCcyPVQvS8tjEHpQ==",
+      "dev": true,
+      "requires": {
+        "@babel/helper-plugin-utils": "^7.16.7",
+        "@babel/helper-validator-option": "^7.16.7",
+        "@babel/plugin-transform-typescript": "^7.16.7"
+      },
+      "dependencies": {
+        "@babel/helper-plugin-utils": {
+          "version": "7.16.7",
+          "resolved": "https://registry.npmjs.org/@babel/helper-plugin-utils/-/helper-plugin-utils-7.16.7.tgz",
+          "integrity": "sha512-Qg3Nk7ZxpgMrsox6HreY1ZNKdBq7K72tDSliA6dCl5f007jR4ne8iD5UzuNnCJH2xBf2BEEVGr+/OL6Gdp7RxA==",
+          "dev": true
+        }
+      }
+    },
     "@babel/register": {
       "version": "7.7.4",
       "resolved": "https://registry.npmjs.org/@babel/register/-/register-7.7.4.tgz",
@@ -2168,9 +2467,9 @@
       }
     },
     "@types/cheerio": {
-      "version": "0.22.23",
-      "resolved": "https://registry.npmjs.org/@types/cheerio/-/cheerio-0.22.23.tgz",
-      "integrity": "sha512-QfHLujVMlGqcS/ePSf3Oe5hK3H8wi/yN2JYuxSB1U10VvW1fO3K8C+mURQesFYS1Hn7lspOsTT75SKq/XtydQg==",
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-          "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
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@@ -5235,8 +5468,7 @@
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@@ -5247,8 +5479,7 @@
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@@ -5258,8 +5489,7 @@
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@@ -5276,8 +5506,7 @@
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-          "integrity": "sha1-0NRoWv1UFRk8jHUFYC0NF81kR00=",
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@@ -5286,14 +5515,12 @@
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@@ -5302,8 +5529,7 @@
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@@ -5314,20 +5540,17 @@
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-          "resolved": false,
-          "integrity": "sha1-CXtgK1NCKlIsGvuHkDGDNpQaAR0=",
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-          "integrity": "sha1-IQmtx5ZYh8/AXLvUQsrIv7s2CGM=",
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-          "resolved": false,
-          "integrity": "sha1-WDsap3WWHUsROsF9nFC6753Xa9E=",
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@@ -5335,20 +5558,17 @@
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-          "resolved": false,
-          "integrity": "sha1-/7xJiDNuDoM94MFox+8VISGqf7M=",
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-          "integrity": "sha1-u+Z0BseaqFxc/sdm/lc0VV36EnQ=",
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@@ -5357,20 +5577,17 @@
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-          "integrity": "sha1-F0uSaHNVNP+8es5r9TpanhtcX18=",
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@@ -5381,16 +5598,14 @@
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-              "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=",
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@@ -5404,8 +5619,7 @@
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@@ -5413,44 +5627,37 @@
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-          "integrity": "sha512-NqVDv9TpANUjFm0N8uM5GxL36UgKi9/atZw+x7YFnQ8ckwFGKrl4xX4yWtrey3UJm5nP1kUbnYgLopqWNSRhWw==",
+          "bundled": true,
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-          "integrity": "sha512-Ya52jSX2u7QKghxeoFGpLwCtGlt7j0oY9DYb5apt9nPlJ42ID+ulTXESnt/qAQcoSERyZ5sl3LDIOw0nAn/5DA==",
+          "bundled": true,
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         "set-blocking": {
           "version": "2.0.0",
-          "resolved": false,
-          "integrity": "sha1-BF+XgtARrppoA93TgrJDkrPYkPc=",
+          "bundled": true,
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         "signal-exit": {
           "version": "3.0.2",
-          "resolved": false,
-          "integrity": "sha1-tf3AjxKH6hF4Yo5BXiUTK3NkbG0=",
+          "bundled": true,
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           "version": "1.0.2",
-          "resolved": false,
-          "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
+          "bundled": true,
           "optional": true,
           "requires": {
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@@ -5460,8 +5667,7 @@
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-          "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
+          "bundled": true,
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@@ -5469,8 +5675,7 @@
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           "version": "3.0.1",
-          "resolved": false,
-          "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
+          "bundled": true,
           "optional": true,
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@@ -5478,14 +5683,12 @@
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           "version": "2.0.1",
-          "resolved": false,
-          "integrity": "sha1-PFMZQukIwml8DsNEhYwobHygpgo=",
+          "bundled": true,
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-          "integrity": "sha512-LzHF64s5chPQQS0IYBn9IN5h3i98c12bo4NCO7e0sGM2llXQ3p2FGC5sdENN4cTW48O915Sh+x+EXx7XW96xYQ==",
+          "bundled": true,
           "optional": true,
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@@ -5499,14 +5702,12 @@
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           "version": "1.0.2",
-          "resolved": false,
-          "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=",
+          "bundled": true,
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-          "integrity": "sha512-QGkOQc8XL6Bt5PwnsExKBPuMKBxnGxWWW3fU55Xt4feHozMUhdUMaBCk290qpm/wG5u/RSKzwdAC4i51YigihA==",
+          "bundled": true,
           "optional": true,
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@@ -5514,14 +5715,12 @@
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-          "resolved": false,
-          "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
+          "bundled": true,
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-          "resolved": false,
-          "integrity": "sha512-S+Zk8DEWE6oKpV+vI3qWkaK+jSbIK86pCwe2IF/xwIpQ8jEuxpw9NyaGjmp9+BoJv5FV2piqCDcoCtStppiq2A==",
+          "bundled": true,
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@@ -6023,7 +6222,7 @@
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       "resolved": "https://registry.npmjs.org/is-buffer/-/is-buffer-1.1.6.tgz",
-      "integrity": "sha1-76ouqdqg16suoTqXsritUf776L4=",
+      "integrity": "sha512-NcdALwpXkTm5Zvvbk7owOUSvVvBKDgKP5/ewfXEznmQFfs4ZRmanOeKBTjRVjka3QFoN6XJ+9F3USqfHqTaU5w==",
       "dev": true,
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     },
@@ -6344,6 +6543,12 @@
       "integrity": "sha1-peZUwuWi3rXyAdls77yoDA7y9RM=",
       "optional": true
     },
+    "jsesc": {
+      "version": "2.5.2",
+      "resolved": "https://registry.npmjs.org/jsesc/-/jsesc-2.5.2.tgz",
+      "integrity": "sha512-OYu7XEzjkCQ3C5Ps3QIZsQfNpqoJyZZA99wd9aWd05NCtC5pWOkShK2mkL6HXQR6/Cy2lbNdPlZBpuQHXE63gA==",
+      "dev": true
+    },
     "json-parse-better-errors": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/json-parse-better-errors/-/json-parse-better-errors-1.0.2.tgz",
@@ -6843,7 +7048,7 @@
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       "resolved": "https://registry.npmjs.org/mime/-/mime-1.4.1.tgz",
-      "integrity": "sha1-Eh+evEnjdm8xGnbh+hyAA8SwOqY="
+      "integrity": "sha512-KI1+qOZu5DcW6wayYHSzR/tXKCDC5Om4s1z2QJjDULzLcmf3DvzS7oluY4HCTrc+9FiKmWUgeNLg7W3uIQvxtQ=="
     },
     "mime-db": {
       "version": "1.35.0",
@@ -7191,6 +7396,23 @@
         "tar": "^4"
       }
     },
+    "node-releases": {
+      "version": "1.1.35",
+      "resolved": "https://registry.npmjs.org/node-releases/-/node-releases-1.1.35.tgz",
+      "integrity": "sha512-JGcM/wndCN/2elJlU0IGdVEJQQnJwsLbgPCFd2pY7V0mxf17bZ0Gb/lgOtL29ZQhvEX5shnVhxQyZz3ex94N8w==",
+      "dev": true,
+      "requires": {
+        "semver": "^6.3.0"
+      },
+      "dependencies": {
+        "semver": {
+          "version": "6.3.0",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz",
+          "integrity": "sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw==",
+          "dev": true
+        }
+      }
+    },
     "nopt": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/nopt/-/nopt-4.0.1.tgz",
@@ -7640,12 +7862,6 @@
       "resolved": "https://registry.npmjs.org/performance-now/-/performance-now-2.1.0.tgz",
       "integrity": "sha1-Ywn04OX6kT7BxpMHrjZLSzd8nns="
     },
-    "picocolors": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/picocolors/-/picocolors-1.0.0.tgz",
-      "integrity": "sha512-1fygroTLlHu66zi26VoTDv8yRgm0Fccecssto+MhsZ0D/DGW2sm8E8AjW7NU5VVTRt5GxbeZ5qBuJr+HyLYkjQ==",
-      "dev": true
-    },
     "pirates": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/pirates/-/pirates-4.0.1.tgz",
@@ -7671,7 +7887,7 @@
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       "resolved": "https://registry.npmjs.org/private/-/private-0.1.8.tgz",
-      "integrity": "sha1-I4Hts2ifelPWUxkAYPz4ItLzaP8=",
+      "integrity": "sha512-VvivMrbvd2nKkiG38qjULzlc+4Vx4wm/whI9pQD35YrARNnhxeiRktSOhSukRLFNlzg6Br/cJPet5J/u19r/mg==",
       "dev": true
     },
     "process-nextick-args": {
@@ -8056,7 +8272,7 @@
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       "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-2.6.2.tgz",
-      "integrity": "sha1-LtgVDSShbqhlHm1u8PR8QVjOejY=",
+      "integrity": "sha512-lreewLK/BlghmxtfH36YYVg1i8IAce4TI7oao75I1g245+6BctqTVQiBP3YUJ9C6DQOXJmkYR9X9fCLtCOJc5w==",
       "requires": {
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@@ -8152,7 +8368,7 @@
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       "resolved": "https://registry.npmjs.org/semver/-/semver-5.5.0.tgz",
-      "integrity": "sha1-3Eu8emyp2Rbe5dQ1FvAJK1j3uKs="
+      "integrity": "sha512-4SJ3dm0WAwWy/NVeioZh5AntkdJoWKxHxcmyP622fOkgHa4z3R0TdBJICINyaSDE6uNwVc8gZr+ZinwZAH4xIA=="
     },
     "send": {
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@@ -8218,7 +8434,7 @@
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       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.1.0.tgz",
-      "integrity": "sha1-0L2FU2iHtv58DYGMuWLZ2RxU5lY="
+      "integrity": "sha512-BvE/TwpZX4FXExxOxZyRGQQv651MSwmWKZGqvmPcRIjDqWub67kTKuIMx43cZZrS/cBBzwBcNDWoFxt2XEFIpQ=="
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     "sha.js": {
       "version": "2.4.11",
@@ -8396,8 +8612,7 @@
       "version": "0.5.7",
       "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.5.7.tgz",
       "integrity": "sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=",
-      "dev": true,
-      "optional": true
+      "dev": true
     },
     "source-map-resolve": {
       "version": "0.5.2",
@@ -8890,6 +9105,12 @@
         "os-tmpdir": "~1.0.2"
       }
     },
+    "to-fast-properties": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/to-fast-properties/-/to-fast-properties-2.0.0.tgz",
+      "integrity": "sha1-3F5pjL0HkmW8c+A3doGk5Og/YW4=",
+      "dev": true
+    },
     "to-object-path": {
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/to-object-path/-/to-object-path-0.3.0.tgz",
@@ -9016,6 +9237,12 @@
       "resolved": "https://registry.npmjs.org/typeforce/-/typeforce-1.12.0.tgz",
       "integrity": "sha512-fvnkvueAOFLhtAqDgIA/wMP21SMwS/NQESFKZuwVrj5m/Ew6eK2S0z0iB++cwtROPWDOhaT6OUfla8UwMw4Adg=="
     },
+    "typescript": {
+      "version": "4.6.2",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.6.2.tgz",
+      "integrity": "sha512-HM/hFigTBHZhLXshn9sN37H085+hQGeJHJ/X7LpBWLID/fbc2acUMfU+lGD98X81sKP+pFa9f0DZmCwB9GnbAg==",
+      "dev": true
+    },
     "uglify-js": {
       "version": "3.7.0",
       "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.7.0.tgz",
diff --git a/package.json b/package.json
index 3313227..4d692df 100644
--- a/package.json
+++ b/package.json
@@ -24,12 +24,16 @@
   "devDependencies": {
     "@babel/cli": "^7.6.3",
     "@babel/core": "^7.6.3",
+    "@babel/plugin-transform-typescript": "^7.16.8",
     "@babel/preset-env": "^7.6.3",
     "@babel/preset-flow": "^7.0.0",
+    "@babel/preset-typescript": "^7.16.7",
     "@babel/register": "^7.7.4",
     "@commitlint/cli": "^12.1.1",
     "@commitlint/config-conventional": "^12.1.1",
     "@istanbuljs/nyc-config-babel": "^2.1.1",
+    "@types/node-fetch": "^2.6.1",
+    "@types/sqlite3": "^3.1.8",
     "babel-eslint": "^10.0.3",
     "babel-plugin-istanbul": "^5.2.0",
     "dotenv": "^8.2.0",
@@ -38,7 +42,8 @@
     "husky": "^6.0.0",
     "nock": "^9.1.6",
     "nyc": "^14.1.1",
-    "tape": "^4.6.3"
+    "tape": "^4.6.3",
+    "typescript": "^4.6.2"
   },
   "bin": {
     "blockstack-subdomain-registrar": "lib/index.js"
@@ -46,7 +51,7 @@
   "scripts": {
     "start": "npm run build && node lib/index.js",
     "start:regtest": "BSK_SUBDOMAIN_CONFIG=config-develop.json BSK_SUBDOMAIN_REGTEST=true npm run start",
-    "build": "babel src -d lib",
+    "build": "tsc && babel src -d lib",
     "flow": "flow",
     "lint": "eslint src",
     "lint:fix": "eslint src --fix",
@@ -102,4 +107,4 @@
       "@semantic-release/git"
     ]
   }
-}
+}
\ No newline at end of file
diff --git a/src/lookups.js b/src/lookups.js
deleted file mode 100644
index e621733..0000000
--- a/src/lookups.js
+++ /dev/null
@@ -1,76 +0,0 @@
-import { config as bskConfig, validateProofs, resolveZoneFileToProfile } from 'blockstack'
-import { validateStacksAddress } from '@stacks/transactions'
-import fetch from 'node-fetch'
-
-import logger from 'winston'
-
-export async function isSubdomainRegistered(fullyQualifiedAddress: String) {
-
-  try {
-    const nameInfoUrl = bskConfig.network.coreApiUrl + '/v1/names/' + fullyQualifiedAddress
-    const nameInfoRequest = await fetch(nameInfoUrl)
-    const { status } = nameInfoRequest
-    const nameInfo = await nameInfoRequest.json()
-    if (status == 200) {
-      return (nameInfo.status === 'registered_subdomain')
-    } else {
-      return false
-    }
-  } catch (err) {
-    if (err.message === 'Name not found') {
-      return false
-    } else if (err.message === 'Bad response status: 500') {
-      return false // currently, the blockstack api returns 500 on subdomain lookup errors.
-    } else {
-      throw err
-    }
-  }
-}
-
-export function validlySignedUpdate() {
-  throw new Error('Not implemented')
-}
-
-export function checkProofs(owner, zonefile) {
-  return resolveZoneFileToProfile(zonefile, owner)
-    .then((profile) => validateProofs(profile, owner))
-    .then((proofs) => proofs.filter(x => x.valid))
-}
-
-export async function isRegistrationValid(
-  subdomainName: String, domainName: String,
-  owner: String, sequenceNumber: Number, checkCore: boolean) {
-  // currently, only support *new* subdomains
-  if (sequenceNumber !== 0) {
-    logger.debug(`seqn: ${sequenceNumber} failed validation`)
-    return false
-  }
-
-  // owner should be a stacks address
-  if (!validateStacksAddress(owner)) {
-    logger.debug(`owner: ${owner} failed validation`)
-    return false
-  }
-
-  // subdomain name should be a legal name
-  const subdomainRegex = /^[a-z0-9\-_+]{1,37}$/
-  if (!subdomainRegex.test(subdomainName)) {
-    logger.debug(`subdomainName: ${subdomainName} failed validation`)
-    return false
-  }
-  if (!checkCore) {
-    return true
-  }
-
-  // shouldn't already exist
-  try {
-    const isRegistered = await isSubdomainRegistered(`${subdomainName}.${domainName}`)
-    if (isRegistered) {
-      logger.warn(`${subdomainName}.${domainName} already exists`)
-    }
-    return !isRegistered
-  } catch (e) {
-    logger.error(e)
-    return false
-  }
-}
diff --git a/src/lookups.ts b/src/lookups.ts
new file mode 100644
index 0000000..5565e35
--- /dev/null
+++ b/src/lookups.ts
@@ -0,0 +1,87 @@
+import {
+  config as bskConfig,
+  validateProofs,
+  resolveZoneFileToProfile,
+} from "blockstack";
+import { validateStacksAddress } from "@stacks/transactions";
+import fetch from "node-fetch";
+import logger from "winston";
+
+export async function isSubdomainRegistered(fullyQualifiedAddress: string) {
+  try {
+    const nameInfoUrl =
+      bskConfig.network.blockstackAPIUrl + "/v1/names/" + fullyQualifiedAddress;
+    const nameInfoRequest = await fetch(nameInfoUrl, {});
+    const { status } = nameInfoRequest;
+    const nameInfo = await nameInfoRequest.json();
+    if (status == 200) {
+      return nameInfo.status === "registered_subdomain";
+    } else {
+      return false;
+    }
+  } catch (err) {
+    if (err.message === "Name not found") {
+      return false;
+    } else if (err.message === "Bad response status: 500") {
+      return false; // currently, the blockstack api returns 500 on subdomain lookup errors.
+    } else {
+      throw err;
+    }
+  }
+}
+
+export function validlySignedUpdate() {
+  throw new Error("Not implemented");
+}
+
+export async function checkProofs(owner: string, zonefile: any) {
+  const profile = await resolveZoneFileToProfile(zonefile, owner);
+  // ts-ignore used below to not modify the code and not add the cheerio module that is in the validate proofs fn type
+  // @ts-ignore
+  const proofs = await validateProofs(profile, owner);
+  return proofs.filter((x) => x.valid);
+}
+
+export async function isRegistrationValid(
+  subdomainName: string,
+  domainName: string,
+  owner: string,
+  sequenceNumber: number,
+  checkCore: boolean
+) {
+  // currently, only support *new* subdomains
+  if (sequenceNumber !== 0) {
+    logger.debug(`seqn: ${sequenceNumber} failed validation`);
+    return false;
+  }
+
+  // owner should be a stacks address
+  if (!validateStacksAddress(owner)) {
+    logger.debug(`owner: ${owner} failed validation`);
+    return false;
+  }
+
+  // subdomain name should be a legal name
+  const subdomainRegex = /^[a-z0-9\-_+]{1,37}$/;
+  if (!subdomainRegex.test(subdomainName)) {
+    logger.debug(`subdomainName: ${subdomainName} failed validation`);
+    return false;
+  }
+  if (!checkCore) {
+    return true;
+  }
+
+  // shouldn't already exist
+  try {
+    const isRegistered = await isSubdomainRegistered(
+      `${subdomainName}.${domainName}`
+    );
+    if (isRegistered) {
+      logger.warn(`${subdomainName}.${domainName} already exists`);
+    }
+    return !isRegistered;
+  } catch (e) {
+    logger.error(e);
+    return false;
+  }
+}
diff --git a/src/types/winston.d.ts b/src/types/winston.d.ts
new file mode 100644
index 0000000..6312ddb
--- /dev/null
+++ b/src/types/winston.d.ts
@@ -0,0 +1 @@
+declare module "winston";
diff --git a/tsconfig.json b/tsconfig.json
new file mode 100644
index 0000000..b331668
--- /dev/null
+++ b/tsconfig.json
@@ -0,0 +1,27 @@
+{
+  "compilerOptions": {
+    "target": "es2020",
+    "module": "commonjs",
+    "moduleResolution": "node",
+    "declaration": false,
+    "strict": true,
+    "sourceMap": true,
+    "esModuleInterop": false,
+    "allowSyntheticDefaultImports": false,
+    "useUnknownInCatchVariables": false,
+    "resolveJsonModule": true,
+    "skipLibCheck": true,
+    "outDir": "lib",
+    "noEmit": true,
+    "baseUrl": ".",
+    "allowJs": true
+  },
+  "include": [
+    "src/lookups.ts",
+    "src/types",
+  ],
+  "exclude": [
+    "lib",
+    "node_modules"
+  ]
+}
\ No newline at end of file