Call the Cloud Vision API with Cloud Functions for Firebase

I leave it as a note.
I made it move with copy and paste.

It is premised that you pre-configure GCP and Firebase settings.

First package.jsonof all dependencies, copy below.

"dependencies": {
    "@google-cloud/storage": "^3.0.3",
    "@google-cloud/vision": "^1.1.3",
    "firebase-admin": "^7.0.0",
    "firebase-functions": "^3.2.0",
  },

After copying, execute the following command

npm install

Then index.jsedit. It should move with copy and paste.
The following implementation is triggered by the file being uploaded to Firebase Storage. In case of another trigger, please change accordingly.

import * as functions from "firebase-functions";
import * as admin from "firebase-admin";
admin.initializeApp(functions.config().firebase);
const vision = require("@google-cloud/vision").v1p1beta1;
const client = new vision.ImageAnnotatorClient();

// resize process image 
export  const  DetectImage  =  functions . Storage 
  . Object () 
  . OnFinalize ( async  object  =>  { 
    // file path acquired 
    const  filePath  =  `gs: // $ { object . Bucket } / $ { object . name } ` ; 
    // Get ContentType 
    const  contentType  =  object . contentType ; 

    if  ( filePath  ==  null)  Return  Null ; 
    If  ( ContentType  ==  Null )  Return  Null ; 

    // not When was other than the image nothing 
    If  ( ! ContentType . StartsWith ( " Image / " ))  { 
      Console . Log ( " This is not a image " ) ; 
      return ; 
    } 

    an if  ( typeof  filePath  ===  " undefined " )  { 
      console . log ( "filePath undefined");
      return;
    }

    return (async () => {
      const data = await client.labelDetection(filePath);
      console.log(data[0].labelAnnotations);
    })()
      .then(() => console.log("success"))
      .catch(err => console. Log ( " An error has occurred "  Tasu  Err )); 
  });

reference

GoogleCloudPlatform/nodejs-docs-samples