Created
October 29, 2017 08:08
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Script to use Firebase Cloud Functions and Vision API
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| const Vision = require('@google-cloud/vision'); | |
| const vision = Vision(); | |
| const functions = require('firebase-functions'); | |
| const admin = require("firebase-admin"); | |
| admin.initializeApp(functions.config().firebase); | |
| exports.callVision = functions.storage.object().onChange(event => { | |
| const object = event.data; | |
| const fileBucket = object.bucket; | |
| const filePath = object.name; | |
| const gcsPath = `gs://${fileBucket}/${filePath}`; | |
| // Prepare the request object | |
| var req = { | |
| image: {source: {imageUri: gcsPath}}, | |
| features: [{ type: Vision.v1.types.Feature.Type.WEB_DETECTION }, | |
| { type: Vision.v1.types.Feature.Type.SAFE_SEARCH_DETECTION }], | |
| }; | |
| console.log('vision api image ' + gcsPath); | |
| // Call the Vision API's web detection and safe search detection endpoints | |
| return vision.annotateImage(req).then(response => { | |
| let webDetection = response[0].webDetection; | |
| let safeSearch = response[0].safeSearchAnnotation; | |
| return {web: webDetection, safe: safeSearch}; | |
| }).then((visionResp) => { | |
| var db = admin.firestore(); | |
| let imageRef = db.collection('images').doc(filePath.slice(7)); | |
| return imageRef.set(visionResp); | |
| }) | |
| .catch(err => { | |
| console.log('vision api error', err); | |
| }); | |
| }); |
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