feat: implement manual methods for objectLocalization and productSear…

…ch on v1p3beta1 (#128)

packages/google-cloud-vision/src/helpers.js

@@ -828,5 +828,122 @@ module.exports = apiVersion => {
     _createSingleFeatureMethod(features.WEB_DETECTION)
   );
 
+  /**
+   * Annotate a single image with the result from Product Search.
+   *
+   * @see v1p3beta1.ImageAnnotatorClient#batchAnnotateImages
+   * @see google.cloud.vision.v1p3beta1.AnnotateImageRequest
+   *
+   * @method v1p3beta1.ImageAnnotatorClient#productSearch
+   * @param {object|string|Buffer} request A representation of the request
+   *     being sent to the Vision API. This is an
+   *     {@link google.cloud.vision.v1p3beta1.AnnotateImageRequest AnnotateImageRequest}.
+   *     For simple cases, you may also send a string (the URL or filename of
+   *     the image) or a buffer (the image itself).
+   * @param {object} request.image A dictionary-like object representing the
+   *     image. This should have a single key (`source`, `content`).
+   *
+   *     If the key is `source`, the value should be another object containing
+   *     `imageUri` or `filename` as a key and a string as a value.
+   *
+   *     If the key is `content`, the value should be a Buffer.
+   * @param {object} [callOptions] Optional parameters. You can override the
+   *     default settings for this call, e.g, timeout, retries, paginations,
+   * @param {function(?Error, ?object)} [callback] The function which will be
+   *     called with the result of the API call.
+   *
+   *     The second parameter to the callback is an object representing
+   *     [BatchAnnotateImagesResponse]{@link BatchAnnotateImagesResponse}.
+   * @returns {Promise} The promise which resolves to an array. The first
+   *     element of the array is an object representing
+   *     [BatchAnnotateImagesResponse]{@link BatchAnnotateImagesResponse}.
+   *     The promise has a method named "cancel" which cancels the ongoing API
+   *     call.
+   *
+   * @example
+   * const vision = require('@google-cloud/vision').v1p3beta1;
+   * const client = new vision.ImageAnnotatorClient();
+   *
+   * const request = {
+   *   image: {
+   *     source: {imageUri: 'gs://path/to/image.jpg'}
+   *   }
+   * };
+   *
+   * client
+   *   .webDetection(request)
+   *   .then(response => {
+   *     // doThingsWith(response);
+   *   })
+   *   .catch(err => {
+   *     console.error(err);
+   *   });
+   */
+  if (features.PRODUCT_SEARCH !== undefined) {
+    methods.productSearch = promisify(
+      _createSingleFeatureMethod(features.PRODUCT_SEARCH)
+    );
+  }
+
+  /**
+   * Annotate a single image with localization vectors.
+   *
+   * @see v1p3beta1.ImageAnnotatorClient#batchAnnotateImages
+   * @see google.cloud.vision.v1p3beta1.AnnotateImageRequest
+   *
+   * @method v1p3beta1.ImageAnnotatorClient#objectLocalization
+   * @param {object|string|Buffer} request A representation of the request
+   *     being sent to the Vision API. This is an
+   *     {@link google.cloud.vision.v1.AnnotateImageRequest AnnotateImageRequest}.
+   *     For simple cases, you may also send a string (the URL or filename of
+   *     the image) or a buffer (the image itself).
+   * @param {object} request.image A dictionary-like object representing the
+   *     image. This should have a single key (`source`, `content`).
+   *
+   *     If the key is `source`, the value should be another object containing
+   *     `imageUri` or `filename` as a key and a string as a value.
+   *
+   *     If the key is `content`, the value should be a Buffer.
+   * @param {object} [callOptions] Optional parameters. You can override the
+   *     default settings for this call, e.g, timeout, retries, paginations,
+   *     etc. See [gax.CallOptions]{@link https://googleapis.github.io/gax-nodejs/global.html#CallOptions}
+   *     for the details.
+   * @param {function(?Error, ?object)} [callback] The function which will be
+   *     called with the result of the API call.
+   *
+   *     The second parameter to the callback is an object representing
+   *     [BatchAnnotateImagesResponse]{@link BatchAnnotateImagesResponse}.
+   * @returns {Promise} The promise which resolves to an array. The first
+   *     element of the array is an object representing
+   *     [BatchAnnotateImagesResponse]{@link BatchAnnotateImagesResponse}.
+   *     The promise has a method named "cancel" which cancels the ongoing API
+   *     call.
+   *
+   * @example
+   * // Object localization is only available in v1p3beta1.
+   * const vision = require('@google-cloud/vision').v1p3beta1;
+   * const client = new vision.ImageAnnotatorClient();
+   *
+   * const request = {
+   *   image: {
+   *     source: {imageUri: 'gs://path/to/image.jpg'}
+   *   }
+   * };
+   *
+   * client
+   *   .objectLocalization(request)
+   *   .then(response => {
+   *     // doThingsWith(response);
+   *   })
+   *   .catch(err => {
+   *     console.error(err);
+   *   });
+   */
+  if (features.OBJECT_LOCALIZATION !== undefined) {
+    methods.objectLocalization = promisify(
+      _createSingleFeatureMethod(features.OBJECT_LOCALIZATION)
+    );
+  }
+
   return methods;
 };

packages/google-cloud-vision/test/helpers.test.js

@@ -478,5 +478,48 @@ describe('Vision helper methods', () => {
           assert(ex.message.indexOf('Setting explicit') > -1);
         });
     });
+
+    it('creates and promisify methods that are available in certain versions', () => {
+      const client = new vision.v1p3beta1.ImageAnnotatorClient();
+      let request = {
+        image: {
+          source: {
+            imageUri: 'https://cloud.google.com/vision/docs/images/bicycle.jpg',
+          },
+        },
+      };
+      let batchAnnotate = sandbox.stub(client, 'batchAnnotateImages');
+      batchAnnotate.callsArgWith(2, undefined, {
+        responses: [
+          {
+            localizedObjectAnnotations: [{dummy: 'response'}],
+          },
+        ],
+      });
+
+      client
+        .productSearch(request)
+        .then(r => {
+          let response = r[0];
+
+          assert.deepEqual(response, {
+            localizedObjectAnnotations: [{dummy: 'response'}],
+          });
+
+          assert(batchAnnotate.callCount === 1);
+          assert(batchAnnotate.calledWith({requests: [request]}));
+        })
+        .catch(assert.ifError);
+    });
+
+    it('throws an error if trying to invoke a method not available in current version', () => {
+      // Use v1 version of client.
+      const client = new vision.v1.ImageAnnotatorClient(CREDENTIALS);
+
+      assert.throws(() => {
+        // Object localization is only available for v1p3beta1.
+        client.objectLocalization({});
+      }, 'TypeError: client.objectLocalization is not a function');
+    });
   });
 });