Add kompression types (#41289)

types/kompression/index.d.ts

@@ -0,0 +1,17 @@
+// Type definitions for kompression 1.0
+// Project: https://github.com/tuananh/kompression
+// Definitions by: Aankhen <https://github.com/Aankhen>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+import koa = require("koa");
+
+export = kompression;
+
+declare function kompression(options?: Kompression.Options): koa.Middleware;
+
+declare namespace Kompression {
+    interface Options {
+        filter?: (contentType: string) => boolean;
+        threshold?: number;
+    }
+}

types/kompression/kompression-tests.ts

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+import Koa = require("koa");
+import compress = require("kompression");
+
+const app = new Koa();
+
+app.use(
+    compress()
+);
+
+app.use(
+    compress({})
+);
+
+// based on README
+app.use(
+    compress({
+        filter(contentType) {
+            return /text/i.test(contentType);
+        },
+        threshold: 2048,
+    })
+);

types/kompression/tsconfig.json

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+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictFunctionTypes": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "kompression-tests.ts"
+    ]
+}

types/kompression/tslint.json

@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }