Dove Support

lib/services/combine.js

@@ -1,8 +1,40 @@
 
-const { processHooks } = require('@feathersjs/commons').hooks;
-
 module.exports = function (...serviceHooks) {
+  const isHookObject = function (hookObject) {
+    return typeof hookObject === 'object' &&
+    typeof hookObject.method === 'string' &&
+    typeof hookObject.type === 'string';
+  };
+
   return function (context) {
-    return processHooks.call(this, serviceHooks, context);
+    let hookObject = context;
+
+    const updateCurrentHook = (current) => {
+      // Either use the returned hook object or the current
+      // hook object from the chain if the hook returned undefined
+      if (current) {
+        if (!isHookObject(current)) {
+          throw new Error(`${hookObject.type} hook for '${hookObject.method}' method returned invalid hook object`);
+        }
+
+        hookObject = current;
+      }
+
+      return hookObject;
+    };
+    // Go through all hooks and chain them into our promise
+    const promise = serviceHooks.reduce((current, fn) => {
+      // @ts-ignore
+      const hook = fn.bind(this);
+
+      // Use the returned hook object or the old one
+      return current.then((currentHook) => hook(currentHook)).then(updateCurrentHook);
+    }, Promise.resolve(hookObject));
+
+    return promise.then(() => hookObject).catch(error => {
+      // Add the hook information to any errors
+      error.hook = hookObject;
+      throw error;
+    });
   };
 };