curl "https://api.alura.io/v1/research/products/4524717183/history" \
  -H "Authorization: Bearer $ALURA_API_KEY"

const res = await fetch('https://api.alura.io/v1/research/products/4524717183/history', {
  headers: {
    Authorization: `Bearer ${process.env.ALURA_API_KEY}`,
  },
});
console.log(await res.json());

import json
import os
import urllib.request

request = urllib.request.Request(
    "https://api.alura.io/v1/research/products/4524717183/history",
    headers={
        "Authorization": f"Bearer {os.environ['ALURA_API_KEY']}",
    },
)
with urllib.request.urlopen(request) as response:
    print(json.load(response))

{
  "object": "research.history",
  "resource": {
    "object": "research.product",
    "id": "4524717183"
  },
  "granularity": "month",
  "history_through": "2026-09",
  "methodology_version": "2026-10",
  "methodology_url": "https://docs.alura.io/methodology/sales-estimates",
  "data": [
    {
      "month": "2026-06",
      "est_sales": 198,
      "est_revenue_usd": 5366,
      "reviews": 17
    },
    {
      "month": "2026-07",
      "est_sales": 214,
      "est_revenue_usd": 5799,
      "reviews": 19
    },
    {
      "month": "2026-08",
      "est_sales": null,
      "est_revenue_usd": null,
      "reviews": null
    },
    {
      "month": "2026-09",
      "est_sales": 236,
      "est_revenue_usd": 6396,
      "reviews": 21
    }
  ],
  "as_of": "2026-10-13T09:30:00Z"
}

{
  "type": "https://docs.alura.io/errors/invalid_request",
  "title": "Invalid request",
  "status": 400,
  "code": "invalid_request",
  "detail": "Invalid request",
  "suggestion": "Fix the request as the detail says, then send it again.",
  "retryable": false,
  "request_id": "req_01JQ5W3H8M2N4P6R8T0V2X4Z6B"
}

{
  "type": "https://docs.alura.io/errors/unauthorized",
  "title": "Unauthorized",
  "status": 401,
  "code": "unauthorized",
  "detail": "Unauthorized",
  "suggestion": "Send a valid API key as `Authorization: Bearer alura_sk_...`.",
  "retryable": false,
  "request_id": "req_01JQ5W3H8M2N4P6R8T0V2X4Z6B"
}

{
  "type": "https://docs.alura.io/errors/credits_exhausted",
  "title": "API credits exhausted",
  "status": 402,
  "code": "credits_exhausted",
  "detail": "API credits exhausted",
  "suggestion": "Upgrade the plan or wait for the monthly reset.",
  "retryable": false,
  "request_id": "req_01JQ5W3H8M2N4P6R8T0V2X4Z6B"
}

{
  "type": "https://docs.alura.io/errors/plan_required",
  "title": "Plan required",
  "status": 403,
  "code": "plan_required",
  "detail": "Plan required",
  "suggestion": "Upgrade the workspace plan to use this operation.",
  "retryable": false,
  "request_id": "req_01JQ5W3H8M2N4P6R8T0V2X4Z6B"
}

{
  "type": "https://docs.alura.io/errors/not_found",
  "title": "Not found",
  "status": 404,
  "code": "not_found",
  "detail": "Not found",
  "suggestion": "Check the ID, or search for it first.",
  "retryable": false,
  "request_id": "req_01JQ5W3H8M2N4P6R8T0V2X4Z6B"
}

{
  "type": "https://docs.alura.io/errors/method_not_allowed",
  "title": "Method not allowed",
  "status": 405,
  "code": "method_not_allowed",
  "detail": "Method not allowed",
  "suggestion": "Use one of the methods in the Allow header.",
  "retryable": false,
  "request_id": "req_01JQ5W3H8M2N4P6R8T0V2X4Z6B"
}

{
  "type": "https://docs.alura.io/errors/rate_limited",
  "title": "Rate limited",
  "status": 429,
  "code": "rate_limited",
  "detail": "Rate limited",
  "suggestion": "Wait for Retry-After, then retry.",
  "retryable": true,
  "request_id": "req_01JQ5W3H8M2N4P6R8T0V2X4Z6B"
}

{
  "type": "https://docs.alura.io/errors/internal_error",
  "title": "Internal error",
  "status": 500,
  "code": "internal_error",
  "detail": "Internal error",
  "suggestion": "Retry; if it keeps failing, report the request_id.",
  "retryable": true,
  "request_id": "req_01JQ5W3H8M2N4P6R8T0V2X4Z6B"
}

{
  "type": "https://docs.alura.io/errors/credits_unavailable",
  "title": "API credits unavailable",
  "status": 503,
  "code": "credits_unavailable",
  "detail": "API credits unavailable",
  "suggestion": "Retry shortly.",
  "retryable": true,
  "request_id": "req_01JQ5W3H8M2N4P6R8T0V2X4Z6B"
}