Added Typescript definitions

index.d.ts

@@ -0,0 +1,45 @@
+import * as express from "express";
+import { DefaultMetricsCollectorConfiguration } from "prom-client";
+
+type NormalizePathRegexs = [string, string];
+
+interface Labels {
+  [key: string]: string | number;
+}
+
+interface Opts {
+  autoregister?: boolean;
+  buckets?: [number];
+
+  includeStatusCode?: boolean;
+  includeMethod?: boolean;
+  includePath?: boolean;
+  includeUp?: boolean;
+
+  metricType?: "summary" | "histogram";
+  metricsPath?: string;
+  promClient?: DefaultMetricsCollectorConfiguration;
+  normalizePath?: NormalizePathRegexs;
+  formatStatusCode?: (res: express.Response) => number | string;
+
+  transformLabels: (
+    labels: Labels,
+    req: express.Request,
+    res: express.Response
+  ) => Labels;
+
+  // https://github.com/disjunction/url-value-parser#options
+  urlValueParser?: {
+    minHexLength?: number;
+    minBase64Length?: number;
+    replaceMasks?: string[];
+    extraMasks?: string[];
+  };
+}
+
+export function normalizePath(
+  req: express.Request,
+  opts?: { normalizePath?: NormalizePathRegexs }
+);
+
+export default function(opts: Opts): express.RequestHandler;

package.json

@@ -10,6 +10,10 @@
     "path",
     "method"
   ],
+  "files": [
+    "src",
+    "index.d.ts"
+  ],
   "scripts": {
     "test": "node_modules/jasme/run.js",
     "coverage": "make coverage"