Refactor makeRequest

lib/makeRequest.js

@@ -9,39 +9,23 @@ function getRequestOpts(self, requestArgs, spec, overrideData) {
   const urlParams = spec.urlParams || [];
   const encode = spec.encode || ((data) => data);
   const host = spec.host;
+  const path = self.createResourcePathWithSymbols(spec.path);
 
   // Don't mutate args externally.
   const args = [].slice.call(requestArgs);
 
   // Generate and validate url params.
-  const urlData = {};
-  for (let i = 0, l = urlParams.length; i < l; ++i) {
-    var path;
-
-    // Note that we shift the args array after every iteration so this just
-    // grabs the "next" argument for use as a URL parameter.
-    const arg = args[0];
-
-    const param = urlParams[i];
-
-    if (param == 'id' && typeof arg !== 'string') {
-      path = self.createResourcePathWithSymbols(spec.path);
-      throw new Error(
-        `Stripe: "id" must be a string, but got: ${typeof arg} (on API request to \`${requestMethod} ${path}\`)`
-      );
-    }
-
-    if (!arg) {
-      path = self.createResourcePathWithSymbols(spec.path);
+  const urlData = urlParams.reduce((urlData, param) => {
+    const arg = args.shift();
+    if (typeof arg !== 'string') {
       throw new Error(
-        `Stripe: Argument "${
-          urlParams[i]
-        }" required, but got: ${arg} (on API request to \`${requestMethod} ${path}\`)`
+        `Stripe: Argument "${param}" must be a string, but got: ${arg} (on API request to \`${requestMethod} ${path}\`)`
       );
     }
 
-    urlData[param] = args.shift();
-  }
+    urlData[param] = arg;
+    return urlData;
+  }, {});
 
   // Pull request data and options (headers, auth) from args.
   const dataFromArgs = utils.getDataFromArgs(args);
@@ -50,7 +34,6 @@ function getRequestOpts(self, requestArgs, spec, overrideData) {
 
   // Validate that there are no more args.
   if (args.length) {
-    path = self.createResourcePathWithSymbols(spec.path);
     throw new Error(
       `Stripe: Unknown arguments (${args}). Did you mean to pass an options object? See https://github.com/stripe/stripe-node/wiki/Passing-Options. (on API request to ${requestMethod} \`${path}\`)`
     );