Construindo pipelines CAPTCHA de cliente com CaptchaAI

Quando você gerencia scraping ou automação para vários clientes, cada projeto eventualmente atinge CAPTCHAs. Em vez de escrever um código de solução único por projeto, crie um pipeline reutilizável. Este guia percorre a arquitetura.

Arquitetura de pipeline

┌──────────────┐    ┌───────────────┐    ┌──────────────┐
│  Client A    │──▶ │               │    │              │
│  Client B    │──▶ │  Task Queue   │──▶ │  CaptchaAI   │
│  Client C    │──▶ │               │    │  API         │
└──────────────┘    └───────────────┘    └──────────────┘
                           │                    │
                           ▼                    ▼
                    ┌───────────────┐    ┌──────────────┐
                    │  Result Store │◀── │  Polling      │
                    │  (Redis/DB)   │    │  Workers      │
                    └───────────────┘    └──────────────┘

Componentes:

1. Ingestão de tarefas — recebe solicitações de resolução de scrapers de clientes
2. Fila — armazena tarefas em buffer e impõe limites de simultaneidade por cliente
3. Trabalhadores do Solver — envie para CaptchaAI e pesquise os resultados
4. Loja de resultados — contém tokens resolvidos para recuperação do consumidor

Pipeline Python

Classe de solucionador principal

import requests
import time
from dataclasses import dataclass
from typing import Optional
from collections import deque
from threading import Lock

SUBMIT_URL = "https://ocr.captchaai.com/in.php"
RESULT_URL = "https://ocr.captchaai.com/res.php"

@dataclass
class SolveRequest:
    client_id: str
    method: str
    params: dict
    callback: Optional[callable] = None

@dataclass
class SolveResult:
    client_id: str
    task_id: str
    token: Optional[str] = None
    error: Optional[str] = None


class CaptchaPipeline:
    def __init__(self, api_key: str, max_concurrent: int = 10):
        self.api_key = api_key
        self.max_concurrent = max_concurrent
        self.queue = deque()
        self.active = {}
        self.lock = Lock()

    def enqueue(self, request: SolveRequest):
        with self.lock:
            self.queue.append(request)

    def submit_task(self, request: SolveRequest) -> Optional[str]:
        data = {
            "key": self.api_key,
            "method": request.method,
            "json": 1,
            **request.params
        }

        try:
            resp = requests.post(SUBMIT_URL, data=data, timeout=15)
            result = resp.json()

            if result.get("status") == 1:
                return result["request"]
            else:
                print(f"[{request.client_id}] Submit error: {result.get('error_text', result.get('request'))}")
                return None
        except requests.RequestException as e:
            print(f"[{request.client_id}] Network error: {e}")
            return None

    def poll_result(self, task_id: str, max_wait: int = 120) -> Optional[str]:
        elapsed = 0
        interval = 5
        while elapsed < max_wait:
            time.sleep(interval)
            elapsed += interval

            try:
                resp = requests.get(RESULT_URL, params={
                    "key": self.api_key,
                    "action": "get",
                    "id": task_id,
                    "json": 1
                }, timeout=10)
                result = resp.json()

                if result.get("status") == 1:
                    return result["request"]
                elif result.get("request") == "CAPCHA_NOT_READY":
                    continue
                else:
                    print(f"Poll error for {task_id}: {result.get('error_text', result.get('request'))}")
                    return None
            except requests.RequestException:
                continue

        return None

    def process_queue(self):
        while self.queue or self.active:
            # Fill active slots
            with self.lock:
                while self.queue and len(self.active) < self.max_concurrent:
                    request = self.queue.popleft()
                    task_id = self.submit_task(request)
                    if task_id:
                        self.active[task_id] = request

            # Poll active tasks
            completed = []
            for task_id, request in list(self.active.items()):
                token = self.poll_result(task_id, max_wait=10)
                if token:
                    result = SolveResult(
                        client_id=request.client_id,
                        task_id=task_id,
                        token=token
                    )
                    if request.callback:
                        request.callback(result)
                    completed.append(task_id)

            with self.lock:
                for task_id in completed:
                    del self.active[task_id]

Uso multicliente

pipeline = CaptchaPipeline(api_key="YOUR_API_KEY", max_concurrent=15)

# Client A — reCAPTCHA v2
pipeline.enqueue(SolveRequest(
    client_id="client_a",
    method="userrecaptcha",
    params={
        "googlekey": "6Le-SITEKEY-A",
        "pageurl": "https://client-a-staging.example.com/qa-form"
    },
    callback=lambda r: print(f"[{r.client_id}] Solved: {r.token[:40]}...")
))

# Client B — Turnstile
pipeline.enqueue(SolveRequest(
    client_id="client_b",
    method="turnstile",
    params={
        "sitekey": "0x4AAAA-SITEKEY-B",
        "pageurl": "https://client-b-target.com/login"
    },
    callback=lambda r: print(f"[{r.client_id}] Solved: {r.token[:40]}...")
))

pipeline.process_queue()

Pipeline Node.js.

const axios = require("axios");

const SUBMIT_URL = "https://ocr.captchaai.com/in.php";
const RESULT_URL = "https://ocr.captchaai.com/res.php";

class CaptchaPipeline {
  constructor(apiKey, maxConcurrent = 10) {
    this.apiKey = apiKey;
    this.maxConcurrent = maxConcurrent;
    this.queue = [];
    this.activeCount = 0;
  }

  enqueue(clientId, method, params) {
    return new Promise((resolve, reject) => {
      this.queue.push({ clientId, method, params, resolve, reject });
      this._processNext();
    });
  }

  async _processNext() {
    if (this.activeCount >= this.maxConcurrent || this.queue.length === 0) return;

    this.activeCount++;
    const task = this.queue.shift();

    try {
      const token = await this._solve(task);
      task.resolve({ clientId: task.clientId, token });
    } catch (err) {
      task.reject(err);
    } finally {
      this.activeCount--;
      this._processNext();
    }
  }

  async _solve(task) {
    const submitResp = await axios.post(SUBMIT_URL, null, {
      params: {
        key: this.apiKey,
        method: task.method,
        json: 1,
        ...task.params,
      },
      timeout: 15000,
    });

    if (submitResp.data.status !== 1) {
      throw new Error(submitResp.data.error_text || submitResp.data.request);
    }

    const taskId = submitResp.data.request;
    return this._poll(taskId);
  }

  async _poll(taskId, maxWait = 120000) {
    const interval = 5000;
    let elapsed = 0;

    while (elapsed < maxWait) {
      await new Promise((r) => setTimeout(r, interval));
      elapsed += interval;

      try {
        const resp = await axios.get(RESULT_URL, {
          params: {
            key: this.apiKey,
            action: "get",
            id: taskId,
            json: 1,
          },
          timeout: 10000,
        });

        if (resp.data.status === 1) return resp.data.request;
        if (resp.data.request !== "CAPCHA_NOT_READY") {
          throw new Error(resp.data.error_text || resp.data.request);
        }
      } catch (err) {
        if (err.response) throw err;
      }
    }

    throw new Error(`Timeout waiting for task ${taskId}`);
  }
}

// Usage
(async () => {
  const pipeline = new CaptchaPipeline("YOUR_API_KEY", 15);

  const results = await Promise.allSettled([
    pipeline.enqueue("client_a", "userrecaptcha", {
      googlekey: "6Le-SITEKEY-A",
      pageurl: "https://client-a-staging.example.com/qa-form",
    }),
    pipeline.enqueue("client_b", "turnstile", {
      sitekey: "0x4AAAA-SITEKEY-B",
      pageurl: "https://client-b-target.com/login",
    }),
  ]);

  results.forEach((r) => {
    if (r.status === "fulfilled") {
      console.log(`[${r.value.clientId}] Token: ${r.value.token.slice(0, 40)}...`);
    } else {
      console.error(`Failed: ${r.reason.message}`);
    }
  });
})();

Configuração por cliente

Rastreie configurações por cliente, como proxy, preferência do solucionador e limites de taxa:

CLIENT_CONFIG = {
    "client_a": {
        "proxy": "host:port:user:pass",
        "proxytype": "HTTP",
        "max_concurrent": 5,
        "default_method": "userrecaptcha"
    },
    "client_b": {
        "proxy": None,
        "proxytype": None,
        "max_concurrent": 10,
        "default_method": "turnstile"
    }
}

def build_params(client_id, params):
    config = CLIENT_CONFIG.get(client_id, {})
    if config.get("proxy"):
        params["proxy"] = config["proxy"]
        params["proxytype"] = config["proxytype"]
    return params

Estratégia de tratamento de erros

Solução de problemas

Perguntas frequentes

Quantas tarefas simultâneas devo executar por cliente?

Comece com 5 a 10. Monitore os tempos de resolução e as taxas de erro e depois ajuste. CaptchaAI suporta alta simultaneidade, mas seu pool de proxy pode ser o gargalo.

Devo usar uma chave de API separada por cliente?

Isso simplifica o faturamento. Use o parâmetro CaptchaAI soft_id se precisar de rastreamento em uma chave.

Como lidar com filas noturnas?

Persista a fila (Redis ou banco de dados). Ao reiniciar, recarregue as tarefas pendentes e retome o processamento.

Construa seu pipeline CAPTCHA com CaptchaAI

Comece a construir pipelines de clientes emcaptchaai.com.

Guias relacionados

• Resolução paralela de CAPTCHA
• Implementando Lógica de Nova Tentativa
• Processamento distribuído de fila Redis
• Script de monitoramento de verificação de integridade