Dados econômicos e de mercado do Brasil a uma API de distância

# 1 · token
TOKEN=$(curl -s https://datalake.mt2data.cloud/oauth/token \
  -H "Content-Type: application/json" \
  -d '{"grant_type":"client_credentials","client_id":"$ID","client_secret":"$SECRET"}' \
  | jq -r .access_token)

# 2 · what can I read?
curl -s https://datalake.mt2data.cloud/catalog -H "Authorization: Bearer $TOKEN" | jq '.files[:3]'

# 3 · full history as CSV
curl -s https://datalake.mt2data.cloud/download/BcbSelicMensalAnualizada -H "Authorization: Bearer $TOKEN" -o BcbSelicMensalAnualizada.csv

import io, requests, pandas as pd

API = "https://datalake.mt2data.cloud"
token = requests.post(f"{API}/oauth/token", json={
    "grant_type": "client_credentials",
    "client_id": ID, "client_secret": SECRET,
}).json()["access_token"]
auth = {"Authorization": f"Bearer {token}"}

catalog = requests.get(f"{API}/catalog", headers=auth).json()["files"]
csv = requests.get(f"{API}/download/BcbSelicMensalAnualizada", headers=auth).text
df = pd.read_csv(io.StringIO(csv))

library(httr2)

api <- "https://datalake.mt2data.cloud"
token <- request(paste0(api, "/oauth/token")) |>
  req_body_json(list(grant_type = "client_credentials",
                     client_id = id, client_secret = secret)) |>
  req_perform() |> resp_body_json()

auth <- \(req) req_auth_bearer_token(req, token$access_token)
catalog <- request(paste0(api, "/catalog")) |> auth() |> req_perform() |> resp_body_json()
df <- request(paste0(api, "/download/BcbSelicMensalAnualizada")) |> auth() |>
  req_perform() |> resp_body_string() |> read.csv(text = _)

using System.Net.Http.Json;

var api = new HttpClient { BaseAddress = new Uri("https://datalake.mt2data.cloud") };
var tok = await (await api.PostAsJsonAsync("/oauth/token", new {
    grant_type = "client_credentials", client_id = id, client_secret = secret
})).Content.ReadFromJsonAsync<Dictionary<string, object>>();
api.DefaultRequestHeaders.Authorization = new("Bearer", tok!["access_token"].ToString());

var catalog = await api.GetStringAsync("/catalog");
var csv = await api.GetStringAsync("/download/BcbSelicMensalAnualizada");