fix(package): add linting for typescript files

EME-5329

Co-authored-by: Gabor Nemeth <gabor.nemeth@emarsys.com>

.eslintrc

@@ -4,7 +4,12 @@
     "mocha": true,
     "es6": true
   },
-  "parser": "babel-eslint",
+  "parser": "@typescript-eslint/parser",
+  "parserOptions": {
+    "ecmaFeatures": {
+      "impliedStrict": true
+    }
+  },
   "globals": {
     "expect": true
   },

package.json

@@ -3,7 +3,7 @@
   "description": "Requests with Escher authentication",
   "scripts": {
     "test": "mocha --require ts-node/register ./src --recursive",
-    "lint": "eslint ./src",
+    "lint": "eslint ./src/**/*.{ts,js}",
     "build": "rm -rf dist && tsc --project ./tsconfig.json",
     "semantic-release": "CI=true semantic-release"
   },
@@ -34,7 +34,7 @@
   },
   "devDependencies": {
     "@types/node": "18.7.8",
-    "babel-eslint": "10.1.0",
+    "@typescript-eslint/parser": "5.35.1",
     "chai": "4.3.6",
     "chai-subset": "1.6.0",
     "eslint": "7.21.0",

src/escher-auth.d.ts

@@ -1,6 +1,4 @@
 declare module 'escher-auth' {
-  export type KeyDB = (key: string) => string;
-
   export type EscherRequest = {
     method: string;
     host: string;
@@ -23,12 +21,17 @@ declare module 'escher-auth' {
   } & Record<string, unknown>;
 
   export default class Escher {
-    constructor(configToMerge?: Config);
+    // eslint-disable-next-line no-unused-vars
+    constructor(configToMerge: Config);
+    // eslint-disable-next-line no-unused-vars
     static create(configToMerge?: Config): Escher;
-    public preSignUrl(url: string, expirationInSec: number): string;
-    public signRequest(requestOptions: ExtendedRequestOption, body?: string | Buffer, headersToSign?: string[]): EscherRequest;
-    public authenticate(request: EscherRequest, keyDb: KeyDB, mandatorySignedHeaders?: string[]): string;
-    public validateRequest(request: EscherRequest, body?: string | Buffer): void;
-    public validateMandatorySignedHeaders(mandatorySignedHeaders?: string[]): void;
+    public signRequest(
+      // eslint-disable-next-line no-unused-vars,no-undef
+      requestOptions: ExtendedRequestOption,
+      // eslint-disable-next-line no-unused-vars
+      body?: string | Buffer,
+      // eslint-disable-next-line no-unused-vars
+      headersToSign?: string[]
+    ): EscherRequest;
   }
 }

src/request.ts

@@ -5,7 +5,6 @@ import { EscherRequestOption } from './requestOption';
 export { EscherRequestOption } from './requestOption';
 import { RequestWrapper, ExtendedRequestOption, TransformedResponse } from './wrapper';
 export { TransformedResponse } from './wrapper';
-import { EscherRequestError } from './requestError';
 export { EscherRequestError } from './requestError';
 import { createLogger } from '@emartech/json-logger';
 const logger = createLogger('suiterequest');