AmznSelectObjectTask

Object-selection is a common Amazon captcha. The user must select every tile matching the question topic from a 3x3 image grid.

1. Create task

Request

POST https://api.omocaptcha.com/v2/createTask

Parameter	Type	Required	Description
`clientKey`	`String`	✅	Client account key
`task.type`	`String`	✅	Captcha service class name. Value: `AmznSelectObjectTask`
`task.imageBase64`	`String`	✅	Base64-encoded 3x3 grid image
`task.other`	`String`	✅	Captcha question text (e.g. `the bags`)

curl -X POST https://api.omocaptcha.com/v2/createTask \
  -H "Content-Type: application/json" \
  -d '{
    "clientKey": "OMO_API_KEY",
    "task": {
      "type": "AmznSelectObjectTask",
      "imageBase64": "BASE64_BODY_HERE",
      "other": "the bags"
    }
  }'

const axios = require('axios');

const { data } = await axios.post('https://api.omocaptcha.com/v2/createTask', {
  clientKey: 'OMO_API_KEY',
  task: {
    type: 'AmznSelectObjectTask',
    imageBase64: 'BASE64_BODY_HERE',
    other: 'the bags'
  }
});

console.log(data);

import requests

res = requests.post('https://api.omocaptcha.com/v2/createTask', json={
    'clientKey': 'OMO_API_KEY',
    'task': {
        'type': 'AmznSelectObjectTask',
        'imageBase64': 'BASE64_BODY_HERE',
        'other': 'the bags'
    }
})

print(res.json())

<?php
$ch = curl_init('https://api.omocaptcha.com/v2/createTask');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode([
    'clientKey' => 'OMO_API_KEY',
    'task' => [
        'type' => 'AmznSelectObjectTask',
        'imageBase64' => 'BASE64_BODY_HERE',
        'other' => 'the bags'
    ]
]));

$response = curl_exec($ch);
curl_close($ch);
echo $response;

Response Success:

{
  "errorId": 0,
  "taskId": "49f9f60a-c809-4af0-93c0-0409b72e67e0"
}

The server returns errorId = 0 and a taskId on success. Failure:

{
  "errorId": 1,
  "errorCode": "",
  "errorDescription": ""
}

The server returns errorId = 1 together with the corresponding errorCode.

2. Get task result

Request

POST https://api.omocaptcha.com/v2/getTaskResult

{
  "clientKey": "OMO_API_KEY",
  "taskId": "49f9f60a-c809-4af0-93c0-0409b72e67e0"
}

Response Success:

{
  "errorId": 0,
  "status": "ready",
  "solution": {
    "objects": [0, 1, 2, 3]
  }
}

The server returns errorId = 0 and status = ready. Read the result from solution.

The objects array contains the indices of the tiles to click in the 3x3 grid, numbered 0 to 8, from left to right, top to bottom:

| 1 | 2
| 4 | 5
| 7 | 8

After clicking the matching tiles, press the Confirm button to submit.

Processing:

{
  "status": "processing",
  "errorId": 0,
  "errorCode": "",
  "errorDescription": ""
}

The server returns errorId = 0 and status = processing. Wait 2 seconds and try again. Failure:

{
  "errorId": 1,
  "errorCode": "ERROR_JOB_STATUS",
  "errorDescription": "Job failed",
  "status": "fail",
  "solution": {}
}

The server returns errorId = 1 when the job fails.

API Reference

Guides

AmznSelectObjectTask

1. Create task

2. Get task result

​1. Create task

​2. Get task result

1. Create task

2. Get task result