only urlEndpoint is required parameter

Author: manu4543

src/index.js

@@ -46,7 +46,7 @@ const ImageKit = function(opts) {
 };
 
 function mandatoryParametersAvailable(options) {
-    return options.publicKey && options.urlEndpoint;
+    return options.urlEndpoint;
 }
 
 function privateKeyPassed(options) {

test/initialization.js

@@ -21,4 +21,16 @@ describe("Initialization checks", function () {
         expect(imagekit.url).to.exist.and.to.be.a('function');
         expect(imagekit.upload).to.exist.and.to.be.a('function');
     });
+
+    it('only urlEndpoint is required parameter', function () {
+        let imagekit = new ImageKit({
+            urlEndpoint: initializationParams.urlEndpoint
+        });
+
+        expect(imagekit.options).to.be.an('object');
+        expect(imagekit.options).to.have.property('urlEndpoint').to.be.equal(initializationParams.urlEndpoint);
+        expect(imagekit.url).to.exist.and.to.be.a('function');
+        expect(imagekit.upload).to.exist.and.to.be.a('function');
+
+    });
 });