> For the complete documentation index, see [llms.txt](https://docs.tronsave.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tronsave.io/developers/api-reference/fast-charge/cancel-order.md).
# Cancel Order
Cancel one or more fast charge orders by their order IDs. You can only cancel orders that are in **Pending** status and have not been matched yet.
To call this endpoint you need a TronSave API key tied to a prefunded internal account. See [Authentication](/developers/authentication.md) for how to obtain and use an API key.
## Endpoint
**`POST`** **`https://api.tronsave.io/v0/fast-charge-order-cancel`**
{% hint style="info" %}
**Rate limit:** 1 request per 2 seconds.
{% endhint %}
## Headers
Name
Type
Description
apikey*
String
TronSave API key that is associated with the internal account. Required.
## Request body
Name
Type
Description
order_ids
Array
Array of order IDs. A list of order IDs that have been created and need to be cancelled.
### Request body example
```json
{
"order_ids": [
"673c17a3129f1881382e98e3"
]
}
```
## Responses
### 200 OK — Success
```json
{
"cancel_results": [
{
"order_id": "673c17a3129f1881382e98e3",
"is_success": true,
"fail_reason": null
}
]
}
```
### 400 Bad Request — Validation error
Returned when the request body is missing a required field or has an invalid value. The `message` names the offending property.
```json
{
"statusCode": 400,
"code": "FST_ERR_VALIDATION",
"error": "Bad Request",
"message": "body must have required property 'order_ids'"
}
```
### 401 Unauthorized — Invalid API key
Returned when the `apikey` header is missing or invalid.
```json
{
"error": true,
"message": "TSAS:107 INVALID_API_KEY"
}
```
### 429 Too Many Requests — Rate limit
Returned when you exceed the rate limit (1 request per 2 seconds for this endpoint).
```json
{
"error": true,
"message": "Rate limit reached"
}
```
## Request examples
{% tabs %}
{% tab title="cURL" %}
```bash
curl -X POST 'https://api.tronsave.io/v0/fast-charge-order-cancel' \
-H 'apikey: YOUR_API_KEY' \
-H 'Content-Type: application/json' \
-d '{
"order_ids": [
"673c17a3129f1881382e98e3"
]
}'
```
{% endtab %}
{% tab title="JavaScript" %}
```javascript
const res = await fetch(
"https://api.tronsave.io/v0/fast-charge-order-cancel",
{
method: "POST",
headers: {
apikey: "YOUR_API_KEY",
"Content-Type": "application/json",
},
body: JSON.stringify({
order_ids: ["673c17a3129f1881382e98e3"],
}),
}
);
const data = await res.json();
console.log(data);
```
{% endtab %}
{% tab title="Python" %}
```python
import requests
url = "https://api.tronsave.io/v0/fast-charge-order-cancel"
headers = {
"apikey": "YOUR_API_KEY",
"Content-Type": "application/json",
}
body = {
"order_ids": ["673c17a3129f1881382e98e3"],
}
response = requests.post(url, headers=headers, json=body)
print(response.json())
```
{% endtab %}
{% tab title="Java" %}
```java
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
public class CancelOrder {
public static void main(String[] args) throws Exception {
String body = """
{
"order_ids": [
"673c17a3129f1881382e98e3"
]
}
""";
HttpClient client = HttpClient.newHttpClient();
HttpRequest request = HttpRequest.newBuilder()
.uri(URI.create("https://api.tronsave.io/v0/fast-charge-order-cancel"))
.header("apikey", "YOUR_API_KEY")
.header("Content-Type", "application/json")
.POST(HttpRequest.BodyPublishers.ofString(body))
.build();
HttpResponse response =
client.send(request, HttpResponse.BodyHandlers.ofString());
System.out.println(response.body());
}
}
```
{% endtab %}
{% tab title="Go" %}
```go
package main
import (
"bytes"
"fmt"
"io"
"net/http"
)
func main() {
body := []byte(`{
"order_ids": [
"673c17a3129f1881382e98e3"
]
}`)
url := "https://api.tronsave.io/v0/fast-charge-order-cancel"
req, _ := http.NewRequest("POST", url, bytes.NewBuffer(body))
req.Header.Set("apikey", "YOUR_API_KEY")
req.Header.Set("Content-Type", "application/json")
resp, err := http.DefaultClient.Do(req)
if err != nil {
panic(err)
}
defer resp.Body.Close()
data, _ := io.ReadAll(resp.Body)
fmt.Println(string(data))
}
```
{% endtab %}
{% tab title="Rust" %}
```rust
use serde_json::json;
fn main() -> Result<(), Box> {
let client = reqwest::blocking::Client::new();
let body = json!({
"order_ids": ["673c17a3129f1881382e98e3"]
});
let response = client
.post("https://api.tronsave.io/v0/fast-charge-order-cancel")
.header("apikey", "YOUR_API_KEY")
.header("Content-Type", "application/json")
.json(&body)
.send()?;
println!("{}", response.text()?);
Ok(())
}
```
{% endtab %}
{% endtabs %}
## Next steps
* Review [Authentication](/developers/authentication.md) to set up your API key and internal account.
* See [Errors and rate limits](/developers/errors-and-rate-limits.md) for handling error responses.
* Learn about [Energy and Bandwidth](/concepts/energy-and-bandwidth.md).
---
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Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:
```
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```
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