Merge branch '210-add-api_key' into 'dev'

fix api-key header (remove underscore)

Closes #210

See merge request ergo/rosen-bridge/watcher!241

src/api/authentication.ts

@@ -4,15 +4,15 @@ import { getConfig } from '../config/config';
 import { uint8ArrayToHex } from '../utils/utils';
 
 const authenticateKey = (req: Request, res: Response, next: NextFunction) => {
-  const api_key: string = req.header('API_KEY')!;
+  const api_key: string = req.header('Api-Key')!;
   if (
     api_key &&
     uint8ArrayToHex(blake2b(api_key, undefined, 32)) ==
       getConfig().general.apiKeyHash
   ) {
     next();
   } else {
-    res.status(403).send({ message: "API_KEY doesn't exist or it is wrong" });
+    res.status(403).send({ message: "Api-Key doesn't exist or it is wrong" });
   }
 };