Set custom Authorization Token through generateAuthHeader class method (#34)

* #27 Added method generateAuthHeader to override default token format with a custom one.

Author: fmquaglia

src/model.ts

@@ -86,7 +86,7 @@ export default class Model {
     }
 
     if (this.getJWT()) {
-      options.headers.Authorization = `Token token="${this.getJWT()}"`;
+      options.headers.Authorization = this.generateAuthHeader(this.getJWT());
     }
 
     return options
@@ -183,6 +183,10 @@ export default class Model {
     return deserialize(resource, payload);
   }
 
+  static generateAuthHeader(jwt: string) : string {
+    return `Token token="${jwt}"`;
+  }
+
   constructor(attributes?: Object) {
     this._initializeAttributes();
     this.attributes = attributes;

test/integration/authorization-test.ts

@@ -1,6 +1,6 @@
 import { sinon, expect, fetchMock } from '../test-helper';
 import { Config } from '../../src/index';
-import { configSetup, ApplicationRecord, Author } from '../fixtures';
+import { configSetup, ApplicationRecord, Author, Person } from '../fixtures';
 
 after(function () {
   fetchMock.restore();
@@ -27,6 +27,30 @@ describe('authorization headers', function() {
     });
   });
 
+  describe('when header is set in a custom generateAuthHeader', function() {
+    let originalHeaderFn = Person.generateAuthHeader;
+    beforeEach(function() {
+      ApplicationRecord.jwt = 'cu570m70k3n';
+      Person.generateAuthHeader = function(token) {
+        return `Bearer ${token}`;
+      };
+    });
+
+    afterEach(function() {
+      fetchMock.restore();
+      Person.generateAuthHeader = originalHeaderFn;
+    });
+
+    it("sends the custom Authorization token in the request's headers", function(done) {
+      fetchMock.mock((url, opts) => {
+        expect(opts.headers.Authorization).to.eq('Bearer cu570m70k3n');
+        done();
+        return true;
+      }, 200);
+      Person.find(1);
+    });
+  });
+
   describe('when header is NOT returned in response', function() {
     beforeEach(function() {
       fetchMock.get('http://example.com/api/v1/authors', {