curl, Postman и код

import requests
from urllib.parse import quote

BASE = "https://server/base/hs/odata/v4/"
session = requests.Session()
session.auth = ("user", "password")          # или session.headers["X-OData4-Token"] = "o4_…"
session.headers["Prefer"] = "odata.maxpagesize=5000"

SAFE = ",()/='"

def odata_query(**options):
    # quote кодирует пробел как %20, а не +
    return "&".join(f"${k}={quote(v, safe=SAFE)}" for k, v in options.items())

url = BASE + "Document_РеализацияТоваровУслуг?" + odata_query(
    select="Ref_Key,Number,Date,СуммаДокумента",
    filter="Date ge 2026-01-01T00:00:00Z and Posted eq true",
)

rows = []
while url:
    page = session.get(url, timeout=300)
    page.raise_for_status()
    data = page.json()
    rows.extend(data["value"])
    url = data.get("@odata.nextLink")

print(len(rows))

const BASE = "https://server/base-svc/hs/odatat/v4/";
const headers = { "X-OData4-Token": "o4_…", Prefer: "odata.maxpagesize=5000" };

const q = (options) =>
  Object.entries(options)
    .map(([k, v]) => `$${k}=${encodeURIComponent(v)}`) // пробел — %20
    .join("&");

let url = `${BASE}Catalog_Контрагенты?${q({ select: "Ref_Key,Description,ИНН", filter: "DeletionMark eq false" })}`;
const rows = [];
while (url) {
  const res = await fetch(url, { headers });
  if (!res.ok) throw new Error(`${res.status}: ${await res.text()}`);
  const data = await res.json();
  rows.push(...data.value);
  url = data["@odata.nextLink"];
}
console.log(rows.length);

curl -u "user:password" -X POST "https://server/base/hs/odata/v4/Catalog_Номенклатура" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: 7d0f3c2e-5b1a-4c8e-9f4d-2a6b8e1c0d33" \
  -d '{
    "Description": "Бумага А4",
    "[email protected]": "Catalog_Номенклатура(guid'\''a1b2c3d4-0000-0000-0000-000000000001'\'')"
  }'

r = session.post(
    BASE + "Catalog_Номенклатура",
    json={"Description": "Бумага А4", "Parent_Key": "a1b2c3d4-0000-0000-0000-000000000001"},
    headers={"Idempotency-Key": "7d0f3c2e-5b1a-4c8e-9f4d-2a6b8e1c0d33"},
)
r.raise_for_status()
created = r.json()
print(created["Ref_Key"], r.headers["Location"])