Merge pull request #13 from VariableVasasMT/feature/issues/9

Configure `qs`

README.md

@@ -148,6 +148,11 @@ query parameter with the [`qs`](https://www.npmjs.com/package/qs) module.
 ###### `.query(params)`
 - shortcut for the previous method with a hash of key/value.
 
+###### `.configQs(config)`
+
+- add config supported by qs.stringify https://www.npmjs.com/package/qs version ^6.5.1
+
+
 ###### `.toString()`, `.valueOf()`, `toJSON()`
 - **returns** a *string* of the current state of the `UrlAssembler` instance. Path parameters not yet replaced will appear as `:param_name`.
 

lib/url-assembler-factory.js

@@ -11,6 +11,10 @@ module.exports = function (request) {
     }
 
     var query = {};
+    //For future to keep other configs
+    this._config = {
+      qsConfig: {}
+    };
     this._query = addQueryParamTo(query);
     this._prefix = '';
     this.pathname = '';
@@ -41,6 +45,7 @@ module.exports = function (request) {
   function initWithInstance (self, instance) {
     extend(self, selectUrlFields(instance));
     self._prefix = instance._prefix;
+    self._config = instance._config;
     self._query(instance.getParsedQuery());
     self._requestModule = instance._requestModule;
   }
@@ -57,6 +62,13 @@ module.exports = function (request) {
     return chainable;
   };
 
+  //To config QS
+  methods.configQs = function(config) {
+    var chainable = this._chain();
+    extend(chainable._config.qsConfig, config);
+    return chainable;
+  };
+
   methods.segment = function (segment) {
     var chainable = this._chain();
     chainable.pathname = this.pathname + encodeURI(segment);
@@ -111,7 +123,7 @@ module.exports = function (request) {
       } else {
         addOneParameter(key, value)
       }
-      this.search = qs.stringify(query);
+      this.search = qs.stringify(query, this._config.qsConfig);
     }
 
     function addManyParameters (hash) {

test/110-instance-with-baseurl.js

@@ -65,6 +65,23 @@ describe('an instance with a baseUrl', function () {
 
   });
 
+  describe("when baseUrl has a repeated query param with config", function() {
+    beforeEach(function() {
+      myUrl = UrlAssembler("http://domain.com/coucou?hello=world");
+    });
+
+    it("should keep accept qs config options", function() {
+      expect(
+        myUrl
+          .configQs({
+            arrayFormat: "repeat"
+          })
+          .query("a", ["b", "c"])
+          .toString()
+      ).to.equal("http://domain.com/coucou?hello=world&a=b&a=c");
+    });
+  });
+
   describe('when used with special characters', function() {
 
     it('should encode them in the final URL (with template)', function() {