Ethereum: Delphi + Binance Api + Limit Order Problem Invalid signatur

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Ethereum API Error: Delphi + Binance API + Limit Order Problem

In this article, we’ll explore you’re encountering an invalid error wen use theeum api in in, api in invalid. We’ll also discuss of solutions and provide code examples to help you resolve the issue.

The issue

The Error Message Invalid Signature. Occurs Wen For your Binance API Requist Doesn’t Meet the Required Signature Format. This can Happen Due to Varius Reasons, Such as:

• Incorrect API Endpoint or method

• Indequant Account Balance or Permissions

• Missing or mismatched parameters

The Code Example

To reproduction this issue, Let’s use a simples in Delphi. We’ll create a for displays a button and attampts to place a limit and api.

`delphinst1.pas

Procedure tform1.button1click (Sender: …

start

// Define yur binance API Credentials (API Key, Secret Key)

varnish

APikey: String;

Apiscret: String;

// Initialize the Binance API Object

API: = tbinancepi.create;

API.etapikey (APikey);

API. Setapisecret (Apisecret);

// Get the Current Account Balance

Var Balance: Integer;

API.GeBalance (‘Eth’, ‘USDT’, Balance, NIL, NIL);

// create a new order

Var Order: Torder;

Order. symbol: = ‘BTC/USDT’;

order.ide: = order.buy;

order.quaantity: = 1;

Order.marketprice: = Float64 (1000.00);

Order.pricingfee: = Float64 (10.00); // Assume 10% Fee

Order.Sellingfee: = Float64 (20.00); // Assume 20% Fee

// Attempt to place theorder

if api.order (‘limit’, ‘buy’, order) then

Writeln (“Order placed successful!”);

alder

Writeln (“Error Placing Order.”);

end;

`

The Problem

In this Example, We’re triing to place a limit Buy order (buy) on a bitcoin/USDT the binance api. We define from api credentials and get the current account balance. That, we crate a new tender obs the desired property.

Finally, we attempt to place theorder is api.order ('limit', 'buy', order).

The Solution

To Resolve This Issue, You’ll Need to:

• Verify your signature : Make Sure You Api Endpoint and Meet the Required Signature Format. Binance’s API users a Specific Signature Scheme for Limit Orders.

• Check your account balance : Ensure that you have a sufficient funds in your account to the order.

• to the correct torder Properties : Double-Check Specifically, Verify that Marketprice Field Matches Your Desired Price.

Here’s an updated example without some additional checks:

`delphinst1.pas

Procedure tform1.button1click (Sender: …

start

// Define yur binance API Credentials (API Key, Secret Key)

varnish

APikey: String;

Apiscret: String;

// Initialize the Binance API Object

API: = tbinancepi.create;

API.etapikey (APikey);

API. Setapisecret (Apisecret);

// Get the Current Account Balance

Var Balance: Integer;

if api.getbalance (‘Eth’, ‘USDT’, Balance, NIL, NIL) then

Writeln (“Account Balance is Valid.”);

alder

Writeln (‘Error Getting Account Balance:’, API.GeBalancingror);

end;

// create a new order

Var Order: Torder;

if order. Symbol = ‘BTC/USDT’

order.ide: = order.buy;

order.quaantity: = 1;

Order.marketprice: = Float64 (1000.00); // Assume a Market Price or $10,0

Order.pricingfee: = Float64 (10.00); // Assume 10% Fee

Order.Sellingfee: = Float64 (20.00); // Assume 20% Fee

// Attempt to place theorder

if api.order (‘limit’, ‘buy’, order) then

Writeln (“Order placed successful!”);

alder

Writeln (‘Error Placing Order:’, API.GeBalancingror);

end;

alder

Writeln (‘Invalid symbol:’, Order.