docs(samples): modernize the samples (#838)

Author: JustinBeckwith

vision/samples/.eslintrc.yml

@@ -1,3 +1,4 @@
 ---
 rules:
   no-console: off
+  node/no-unsupported-features/node-builtins: off

vision/samples/async-batch-annotate-images.js

@@ -80,4 +80,9 @@ function main(
   // [END vision_async_batch_annotate_images]
 }
 
+process.on('unhandledRejection', err => {
+  console.error(err.message);
+  process.exitCode = 1;
+});
+
 main(...process.argv.slice(2));

vision/samples/batch-annotate-files-gcs.js

@@ -100,4 +100,9 @@ function main(
   // [END vision_batch_annotate_files_gcs]
 }
 
+process.on('unhandledRejection', err => {
+  console.error(err.message);
+  process.exitCode = 1;
+});
+
 main(...process.argv.slice(2));

vision/samples/batch-annotate-files.js

@@ -23,9 +23,7 @@ function main(fileName = 'path/to/your/file.pdf') {
 
   // Imports the Google Cloud client libraries
   const {ImageAnnotatorClient} = require('@google-cloud/vision').v1;
-  const fs = require('fs');
-  const {promisify} = require('util');
-  const readFileAsync = promisify(fs.readFile);
+  const fs = require('fs').promises;
 
   // Instantiates a client
   const client = new ImageAnnotatorClient();
@@ -38,7 +36,7 @@ function main(fileName = 'path/to/your/file.pdf') {
     // https://cloud.google.com/vision/docs/reference/rpc/google.cloud.vision.v1#inputconfig
     const inputConfig = {
       mimeType: 'application/pdf',
-      content: await readFileAsync(fileName),
+      content: await fs.readFile(fileName),
     };
 
     // Set the type of annotation you want to perform on the file
@@ -99,4 +97,9 @@ function main(fileName = 'path/to/your/file.pdf') {
   // [END vision_batch_annotate_files]
 }
 
+process.on('unhandledRejection', err => {
+  console.error(err.message);
+  process.exitCode = 1;
+});
+
 main(...process.argv.slice(2));

vision/samples/detect.v1p3beta1.js

@@ -12,8 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-/* eslint-disable */
-
 'use strict';
 
 async function detectHandwritingOCR(fileName) {
@@ -74,40 +72,40 @@ async function detectHandwritingGCS(uri) {
   // [END vision_handwritten_ocr_gcs_beta]
 }
 
-require(`yargs`)
+require('yargs')
   .demand(1)
   .command(
-    `detectHandwriting`,
-    `Detects handwriting in a local image file.`,
+    'detectHandwriting',
+    'Detects handwriting in a local image file.',
     {},
     opts => detectHandwritingOCR(opts.handwritingSample)
   )
   .command(
-    `detectHandwritingGCS`,
-    `Detects handwriting from Google Cloud Storage Bucket.`,
+    'detectHandwritingGCS',
+    'Detects handwriting from Google Cloud Storage Bucket.',
     {},
     opts => detectHandwritingGCS(opts.handwritingSample)
   )
   .options({
     handwritingSample: {
       alias: 'h',
-      default: `./resources/handwritten.jpg`,
+      default: './resources/handwritten.jpg',
       global: true,
       requiresArg: true,
       type: 'string',
     },
     handwritingGcsUri: {
       alias: 'u',
-      default: `gs://cloud-samples-data/vision/handwritten.jpg`,
+      default: 'gs://cloud-samples-data/vision/handwritten.jpg',
       global: true,
       requiresArg: true,
       type: 'string',
     },
   })
-  .example(`node $0 detectHandwriting ./resources/handwritten.jpg`)
-  .example(`node $0 detectHandwritingGCS gs://my-bucket/image.jpg`)
+  .example('node $0 detectHandwriting ./resources/handwritten.jpg')
+  .example('node $0 detectHandwritingGCS gs://my-bucket/image.jpg')
   .wrap(120)
   .recommendCommands()
-  .epilogue(`For more information, see https://cloud.google.com/vision/docs`)
+  .epilogue('For more information, see https://cloud.google.com/vision/docs')
   .help()
   .strict().argv;

vision/samples/package.json

@@ -2,9 +2,9 @@
   "name": "nodejs-docs-samples-vision",
   "private": true,
   "license": "Apache-2.0",
-  "author": "Google Inc.",
+  "author": "Google LLC",
   "engines": {
-    "node": ">=8"
+    "node": ">=10.17.0"
   },
   "files": [
     "*.js"
@@ -14,7 +14,6 @@
   },
   "dependencies": {
     "@google-cloud/vision": "^2.1.2",
-    "mathjs": "^7.0.0",
     "natural": "^2.0.0",
     "pureimage": "^0.2.1",
     "redis": "^3.0.0",

vision/samples/productSearch/addProductToProductSet.js

@@ -16,11 +16,10 @@
 
 function main(projectId, location, productId, productSetId) {
   // [START vision_product_search_add_product_to_product_set]
-  async function addProductToProductSet() {
-    const vision = require('@google-cloud/vision');
-
-    const client = new vision.ProductSearchClient();
+  const vision = require('@google-cloud/vision');
+  const client = new vision.ProductSearchClient();
 
+  async function addProductToProductSet() {
     /**
      * TODO(developer): Uncomment the following line before running the sample.
      */
@@ -44,7 +43,13 @@ function main(projectId, location, productId, productSetId) {
     await client.addProductToProductSet(request);
     console.log('Product added to product set.');
   }
-  // [END vision_product_search_add_product_to_product_set]
   addProductToProductSet();
+  // [END vision_product_search_add_product_to_product_set]
 }
+
+process.on('unhandledRejection', err => {
+  console.error(err.message);
+  process.exitCode = 1;
+});
+
 main(...process.argv.slice(2));

vision/samples/productSearch/createProduct.js

@@ -22,13 +22,12 @@ function main(
   productCategory
 ) {
   // [START vision_product_search_create_product]
-  async function createProduct() {
-    // Imports the Google Cloud client library
-    const vision = require('@google-cloud/vision');
-
-    // Creates a client
-    const client = new vision.ProductSearchClient();
+  // Imports the Google Cloud client library
+  const vision = require('@google-cloud/vision');
 
+  // Creates a client
+  const client = new vision.ProductSearchClient();
+  async function createProduct() {
     /**
      * TODO(developer): Uncomment the following line before running the sample.
      */
@@ -55,7 +54,12 @@ function main(
     const [createdProduct] = await client.createProduct(request);
     console.log(`Product name: ${createdProduct.name}`);
   }
-  // [END vision_product_search_create_product]
   createProduct();
+  // [END vision_product_search_create_product]
 }
+process.on('unhandledRejection', err => {
+  console.error(err.message);
+  process.exitCode = 1;
+});
+
 main(...process.argv.slice(2));

vision/samples/productSearch/createProductSet.js

@@ -16,13 +16,13 @@
 
 function main(projectId, location, productSetId, productSetDisplayName) {
   // [START vision_product_search_create_product_set]
-  async function createProductSet() {
-    // Imports the Google Cloud client library
-    const vision = require('@google-cloud/vision');
+  // Imports the Google Cloud client library
+  const vision = require('@google-cloud/vision');
 
-    // Creates a client
-    const client = new vision.ProductSearchClient();
+  // Creates a client
+  const client = new vision.ProductSearchClient();
 
+  async function createProductSet() {
     /**
      * TODO(developer): Uncomment the following line before running the sample.
      */
@@ -47,7 +47,13 @@ function main(projectId, location, productSetId, productSetDisplayName) {
     const [createdProductSet] = await client.createProductSet(request);
     console.log(`Product Set name: ${createdProductSet.name}`);
   }
-  // [END vision_product_search_create_product_set]
   createProductSet();
+  // [END vision_product_search_create_product_set]
 }
+
+process.on('unhandledRejection', err => {
+  console.error(err.message);
+  process.exitCode = 1;
+});
+
 main(...process.argv.slice(2));

vision/samples/productSearch/createReferenceImage.js

@@ -16,11 +16,11 @@
 
 function main(projectId, location, productId, referenceImageId, gcsUri) {
   // [START vision_product_search_create_reference_image]
-  async function createReferenceImage() {
-    const vision = require('@google-cloud/vision');
+  const vision = require('@google-cloud/vision');
 
-    const client = new vision.ProductSearchClient();
+  const client = new vision.ProductSearchClient();
 
+  async function createReferenceImage() {
     /**
      * TODO(developer): Uncomment the following line before running the sample.
      */
@@ -46,7 +46,13 @@ function main(projectId, location, productId, referenceImageId, gcsUri) {
     console.log(`response.name: ${response.name}`);
     console.log(`response.uri: ${response.uri}`);
   }
-  // [END vision_product_search_create_reference_image]
   createReferenceImage();
+  // [END vision_product_search_create_reference_image]
 }
+
+process.on('unhandledRejection', err => {
+  console.error(err.message);
+  process.exitCode = 1;
+});
+
 main(...process.argv.slice(2));