From module to a class, which accepts API Key and Secret

lib/core/authorization.js

@@ -1,49 +1,70 @@
 import * as Utils from '../helpers/utils'
 import * as Security from '../helpers/security'
 
-const getApiKey = () => {
-  return '00000-00000-00000';
-}
+export default class Authorization {
+  constructor(key,secret){
+    this.key = key;
+    this.secret = secret
+  }
+
+  getApiKey () {
+    return this.key;
+  }
+
+  getAPISecret () {
+    return this.secret;
+  }
+
+  getEpoch () {
+    return Utils.epoch();
+  }
 
-// PRIVATE
-const options = (url, authHeaderValue) => ({
-  headers: {
-    Authorization: `hmac ${authHeaderValue}`,
-    'Content-Type': 'application/json',
-  },
-  url,
-});
-
-const getEpoch = () => Utils.epoch();
-
-const getNonce = () => Utils.randomString(32);
-
-const getHmacInputText = input => Utils.concat(input, '');
-
-export function inputForHmac (apiKeyValue, endpoint, bodyHash) {
-  const httpMethod = endpoint.method;
-  const action = endpoint.path;
-  const epoch = getEpoch();
-  const nonce = getNonce();
-  const concatenated = getHmacInputText([apiKeyValue, httpMethod, action, epoch, nonce, bodyHash]);
-  return {
-    text: concatenated,
-    epoch,
-    nonce,
+  getNonce () {
+    return Utils.randomString(32);
+  }
+
+  getHmacInputText (input){
+    return Utils.concat(input, '');
+  }
+
+  options (url, authHeaderValue) {
+    return {
+      headers: {
+        Authorization: `hmac ${authHeaderValue}`,
+        'Content-Type': 'application/json',
+      },
+      url,
+    }
   };
-};
-
-function authorizationHeaderValue (apiKeyValue, endpoint) {
-  const bodyHash = ''; // empty, no body request at the moment
-  const hmacParams = inputForHmac(apiKeyValue, endpoint, bodyHash);
-  const generatedHmac = Security.hmacify(hmacParams.text, hmacParams.nonce);
-
-  // https://api.combell.com/v2/documentation#section/Authentication/Sending-an-authorized-request
-  // > your_api_key:generated_hmac:nonce:unix_timestamp
-  return Utils.concat([apiKeyValue, generatedHmac, hmacParams.nonce, hmacParams.epoch], ':');
-};
-
-export function headers (endpoint) {
-  const val = authorizationHeaderValue(getApiKey(), endpoint);
-  return options(endpoint.url, val);
-};
+
+  inputForHmac (apiKeyValue, endpoint, bodyHash) {
+    const httpMethod = endpoint.method;
+    const action = encodeURIComponent(endpoint.path);
+    const epoch = this.getEpoch();
+    const nonce = this.getNonce();
+    const secret = this.getAPISecret();
+
+    const concatenated = this.getHmacInputText([apiKeyValue, httpMethod, action, epoch, nonce, bodyHash]);
+    return {
+      text: concatenated,
+      epoch,
+      nonce,
+      secret
+    };
+  };
+
+  authorizationHeaderValue (apiKeyValue, endpoint) {
+    const bodyHash = null; // no body request at the moment, must be null
+    const hmacParams = this.inputForHmac(apiKeyValue, endpoint, bodyHash);
+    const generatedHmac = Security.hmacify(hmacParams.text, hmacParams.secret);
+
+    // https://api.combell.com/v2/documentation#section/Authentication/Sending-an-authorized-request
+    // > your_api_key:generated_hmac:nonce:unix_timestamp
+    return Utils.concat([apiKeyValue, generatedHmac, hmacParams.nonce, hmacParams.epoch], ':');
+  };
+
+  headers (endpoint) {
+    const val = this.authorizationHeaderValue(this.getApiKey(), endpoint);
+    return this.options(endpoint.url, val);
+  };
+}