Limits (sym limits) 📏

What it Does

Shows volume trading limits for a symbol and the latest quote:

• Minimum lot (min)
• Lot step (step)
• Maximum lot (max)
• Quote: Bid / Ask / Time

Best‑effort ensures the symbol is visible before requests.

---

Method Signatures

public Task EnsureSymbolVisibleAsync(
    string symbol,
    TimeSpan? maxWait = null,
    TimeSpan? pollInterval = null,
    DateTime? deadline = null,
    CancellationToken cancellationToken = default);

public Task<MrpcMqlTick> SymbolInfoTickAsync(
    string symbol,
    DateTime? deadline = null,
    CancellationToken cancellationToken = default);

public Task<(double Min, double Step, double Max)> GetVolumeConstraintsAsync(
    string symbol,
    DateTime? deadline = null,
    CancellationToken cancellationToken = default);

Input Parameters ⬇️

Parameter	Type	Required	Description
--profile, -p	string	yes	Which profile to use (from profiles.json).
--symbol, -s	string	no	Target symbol (defaults to profile’s DefaultSymbol).
--output, -o	string	no	text (default) or json.
--timeout-ms	int	no	Per‑RPC timeout in milliseconds (default: 30000).

Aliases: lim (subcommand of symbol/sym).

---

Output Fields ⬆️

Text mode

<SYMBOL>:
  Quote: Bid=<bid> Ask=<ask> Time=<iso>
  Volume: min=<min> step=<step> max=<max>

JSON mode

{
  "symbol": "EURUSD",
  "quote": { "Bid": 1.23456, "Ask": 1.23470, "Time": "2025-09-02T14:22:33Z" },
  "volume": { "min": 0.01, "step": 0.01, "max": 100 }
}

---

How to Use 🛠️

# Text
dotnet run -- sym limits -p demo -s EURUSD

# JSON
dotnet run -- sym limits -p demo -s EURUSD -o json

---

Code Reference 🧩

var sym = symbol ?? GetOptions().DefaultSymbol;

// Best‑effort visibility
try { await _mt5Account.EnsureSymbolVisibleAsync(sym, TimeSpan.FromSeconds(3)); } catch (Exception ex) when (ex is not OperationCanceledException) { }

// Quote + limits
var tick = await _mt5Account.SymbolInfoTickAsync(sym);
var (min, step, max) = await _mt5Account.GetVolumeConstraintsAsync(sym);

Console.WriteLine($"{sym}:\n  Quote: Bid={tick.Bid} Ask={tick.Ask} Time={tick.Time}\n  Volume: min={min} step={step} max={max}");