# 使用 API 密钥通过 API 扩展订单

如何获取api密钥

[选项 1：在 Tronsave 网站上生成 API 密钥。](/chinese/developer/get-api-key/on-the-website.md)

[选项 2：在 Telegram 上生成 API 密钥。](/chinese/developer/get-api-key/on-telegram.md)

**要求：TronWeb 版本 5.3.2**

npm i tronweb\@5.3.2 @noble/secp256k1\@1.7.1

(了解更多：<https://tronweb.network/docu/docs/5.3.2/Release%20Note/>)

{% tabs %}
{% tab title="Javascript" %}

```javascript
const API_KEY = `your-api-key`;
const TRONSAVE_API_URL = "https://api.tronsave.io"
const RECEIVER = "your-receiver-address"
const RESOURCE_TYPE = "ENERGY"

const GetEstimateExtendData = async (extendTo, maxPriceAccepted) => {
    const url = TRONSAVE_API_URL + `/v2/get-extendable-delegates`
    const body = {
        extendTo, //time in seconds you want to extend to
        receiver: RECEIVER,   //the address that receives the resource delegate
        maxPriceAccepted, //Optional. Number the maximum price you want to pay to extend
        resourceType: RESOURCE_TYPE, //ENERGY or BANDWIDTH. optional. The default is ENERGY
    }
    const data = await fetch(url, {
        method: "POST",
        headers: {
            'apikey': API_KEY,
            "content-type": "application/json",
        },
        body: JSON.stringify(body)
    })
    const response = await data.json()
    /**
     * Example response 
     * @link  
       {
            "error": false,
            "message": "Success",
            "data": {
                "extendOrderBook": [
                    {
                        "price": 784,
                        "value": 1002
                    }
                ],
                "totalDelegateAmount": 5003,
                "totalAvailableExtendAmount": 5003,
                "totalEstimateTrx": 4085783,
                "isAbleToExtend": true,
                "yourBalance": 2377366851,
                "extendData": [
                    {
                        "delegator": "TGGVrYaT8Xoos...6dmSZkohGGcouYL4",
                        "isExtend": true,
                        "extraAmount": 0,
                        "extendTo": 1745833276
                    },
                    {
                        "delegator": "TQBV7xU489Rq8Z...zBhJMdrDr51wA2",
                        "isExtend": true,
                        "extraAmount": 0,
                        "extendTo": 1745833276
                    },
                    {
                        "delegator": "TSHZv6xsYHMRCbdVh...qNozxaPPjDR6",
                        "isExtend": true,
                        "extraAmount": 0,
                        "extendTo": 1745833276
                    }
                ]
            }
        }
     */
    return response
}

/**
 * @param {number} extendTo the time in seconds you want to extend to
 * @param {boolean} maxPriceAccepted number maximum price you want to pay to extend
 * @returns 
 */
const SendExtendRequest = async (extendTo, maxPriceAccepted) => {
    const url = TRONSAVE_API_URL + `/v2/extend-request`
    // Get estimate extendable delegates
    const estimateResponse = await GetEstimateExtendData(extendTo, maxPriceAccepted)
    const extendData = estimateResponse.data?.extendData
    if (extendData && extendData.length) { 
        const body = {
            extendData: extendData,
            receiver: RECEIVER,
        }
        const data = await fetch(url, {
            method: "POST",
            headers: {
                'apikey': API_KEY,
                "content-type": "application/json",
            },
            body: JSON.stringify(body)
        })
        const response = await data.json()
        /**
         * Example response 
         {
            error: false,
            message: 'Success',
            data: { orderId: '680b5ac7b09a385fb3d582ff' }
            }
         */
        return response
    }
    return []
}

//Example run code
const ClientCode = async () => { 
    const extendTo = Math.floor(new Date().getTime() / 1000) + 3 * 86400 //Extend to 3 next days
    const maxPriceAccepted = 900
    const response = await SendExtendRequest(extendTo, maxPriceAccepted)
    console.log(response)
}


ClientCode()
```

{% endtab %}

{% tab title="PHP" %}

```php
//<?php

// Configuration
const API_KEY = 'your-api-key';
const TRONSAVE_API_URL = "https://api.tronsave.io";
const RECEIVER = "your-receiver-address";
const RESOURCE_TYPE = "ENERGY";

/**
 * Get estimate extend data
 * @param int $extendTo
 * @param int $maxPriceAccepted
 * @return array
 */
function getEstimateExtendData(int $extendTo, int $maxPriceAccepted): array {
    $url = TRONSAVE_API_URL . "/v2/get-extendable-delegates";
    $body = [
        'extendTo' => $extendTo,
        'receiver' => RECEIVER,
        'maxPriceAccepted' => $maxPriceAccepted,
        'resourceType' => RESOURCE_TYPE,
    ];

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($body));
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_HTTPHEADER, [
        'apikey: ' . API_KEY,
        'Content-Type: application/json'
    ]);
    $response = curl_exec($ch);
    curl_close($ch);
    return json_decode($response, true);
}

/**
 * Send extend request
 * @param int $extendTo
 * @param int $maxPriceAccepted
 * @return array
 */
function sendExtendRequest(int $extendTo, int $maxPriceAccepted): array {
    $url = TRONSAVE_API_URL . "/v2/extend-request";
    $estimateResponse = getEstimateExtendData($extendTo, $maxPriceAccepted);
    $extendData = $estimateResponse['data']['extendData'] ?? [];

    if (!empty($extendData)) {
        $body = [
            'extendData' => $extendData,
            'receiver' => RECEIVER,
        ];

        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_POST, true);
        curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($body));
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_HTTPHEADER, [
            'apikey: ' . API_KEY,
            'Content-Type: application/json'
        ]);
        $response = curl_exec($ch);
        curl_close($ch);
        return json_decode($response, true);
    }

    return [];
}

// Example run code
try {
    $extendTo = time() + (3 * 86400); // Extend to 3 next days
    $maxPriceAccepted = 900;
    $response = sendExtendRequest($extendTo, $maxPriceAccepted);
    print_r($response);
} catch (Exception $e) {
    echo "Error: " . $e->getMessage() . "\n";
} 
```

{% endtab %}

{% tab title="Python" %}

```python
import time
import requests
from typing import Dict, Any, Optional

# Configuration
API_KEY = 'your-api-key'
TRONSAVE_API_URL = "https://api.tronsave.io"
RECEIVER = "your-receiver-address"
RESOURCE_TYPE = "ENERGY"

def get_estimate_extend_data(extend_to: int, max_price_accepted: int) -> Dict[str, Any]:
    """Get estimate extend data"""
    url = f"{TRONSAVE_API_URL}/v2/get-extendable-delegates"
    headers = {
        'apikey': API_KEY,
        'Content-Type': 'application/json'
    }
    
    body = {
        'extendTo': extend_to,
        'receiver': RECEIVER,
        'maxPriceAccepted': max_price_accepted,
        'resourceType': RESOURCE_TYPE,
    }
    
    response = requests.post(url, headers=headers, json=body)
    return response.json()

def send_extend_request(extend_to: int, max_price_accepted: int) -> Dict[str, Any]:
    """Send extend request"""
    url = f"{TRONSAVE_API_URL}/v2/extend-request"
    headers = {
        'apikey': API_KEY,
        'Content-Type': 'application/json'
    }
    
    estimate_response = get_estimate_extend_data(extend_to, max_price_accepted)
    extend_data = estimate_response.get('data', {}).get('extendData', [])

    if extend_data:
        body = {
            'extendData': extend_data,
            'receiver': RECEIVER,
        }
        
        response = requests.post(url, headers=headers, json=body)
        return response.json()

    return {}

def main() -> None:
    """Main function"""
    try:
        extend_to = int(time.time()) + (3 * 86400)  # Extend to 3 next days
        max_price_accepted = 900
        response = send_extend_request(extend_to, max_price_accepted)
        print("Response:", response)
    except Exception as e:
        print(f"Error: {str(e)}")

if __name__ == "__main__":
    main() 
```

{% endtab %}
{% endtabs %}

<br>


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.tronsave.io/chinese/full-code-example/code-example-v2/extend-order-by-api-using-api-key.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.