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Official #CBK scnnr client library for JavaScript.

Installation

NPM

npm install --save scnnr

Yarn

yarn add scnnr

Configuration

You can pass configuration options as an object on creating a client instance.

import scnnr from 'scnnr'
const client = scnnr({
  apiKey: 'YOUR API KEY',
  version: 'v1',
  timeout: 0, // sec
})

Operations through the client basically return Promise instance and the promises will be resolved with a Recognition instance.

Examples

Basic usage

Request image recognition by an image URL.

const url = 'https://example.com/dummy.jpg'
let promisedRecognition = client.recognizeURL(url)

// Or, you can override timeout option.
promisedRecognition = client.recognizeURL(url, { timeout: 10 })

Request image recognition by a binary image.

promisedRecognition = client.recognizeImage(image) // image is an ArrayBuffer

Recognition class represents the image recognition result from API. If the recognition processing is completed, the promise is resolved with Recognition with finished state.

promisedRecognition
  .filter(recognition => console.log(recognition.state === 'finished')) // => true

promisedRecognition
  .filter(recognition => console.log(JSON.stringify(recognition, null, 2)))
/*
=> {
  "id": "20171207/27c6e071-c8f0-426e-806b-4a8b4390aef7",
  "objects": [
    {
      "category": "bottoms",
      "boundingBox": {
        "bottom": 1,
        "left": 0.3233167,
        "right": 0.7062677,
        "top": 0.46807754
      },
      "labels": [
        {
          "name": "パンツ",
          "score": 0.9952112
        },
        {
          "name": "スキニー",
          "score": 0.9802289
        },
        {
          "name": "ブラック",
          "score": 0.81389445
        },
        {
          "name": "デニム",
          "score": 0.8030528
        },
        {
          "name": "ジーンズ",
          "score": 0.7185342
        }
      ]
    },
    {
      "category": "tops_1",
      "boundingBox": {
        "bottom": 0.5370441,
        "left": 0.2191737,
        "right": 0.7182835,
        "top": 0.06979297
      },
      "labels": [
        {
          "name": "カーキ",
          "score": 0.98178136
        },
        {
          "name": "Tシャツ",
          "score": 0.95349556
        },
        {
          "name": "無地",
          "score": 0.90042996
        },
        {
          "name": "Vネック",
          "score": 0.8733328
        },
        {
          "name": "カットソー",
          "score": 0.7097928
        },
        {
          "name": "プルオーバー",
          "score": 0.51508075
        }
      ]
    }
  ],
  "state": "finished"
}
 */

If the timeout value is zero or null, the promise is resolved with Recognition with queued state.

Then you can fetch the recognition result using client.fetch.

promisedRecognition.then(recognition => console.log(recognition.state === 'queued')) // => true

promisedRecognition.then(recognition => console.log(JSON.stringify(recognition)))
// => {"id":"20171207/27c6e071-c8f0-426e-806b-4a8b4390aef7","state":"queued"}

promisedRecognition.then(recognition => client.fetch(recognition.id))
  .then(recognition => console.log(recognition.state === 'finished')) // => true

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