# Verifies Signature off chain

This will allow to Verify Generated Signature off chain.

## API Specification

## Verifies Generated Signature off chain

<mark style="color:green;">`POST`</mark> `http://localhost:8889/wallet/verifySignatureOffChain`

This will Verify Generated Signature off chain under the given instance.&#x20;

#### Request Body

| Name                                        | Type   | Description         |
| ------------------------------------------- | ------ | ------------------- |
| message<mark style="color:red;">\*</mark>   | String | Message text        |
| signature<mark style="color:red;">\*</mark> | String | Generated Signature |
| walletId<mark style="color:red;">\*</mark>  | String | Wallet ID           |

{% tabs %}
{% tab title="200: OK success" %}

```javascript
{
  "Status": "SUCCESS",
  "Message": "",
  "Data": {
    "isVerified": true
  }
}
```

{% endtab %}

{% tab title="417: Expectation Failed invalid signature" %}

```javascript
{
    "Status": "FAILURE",
    "Message": "error getting public key from signature : invalid signature recovery id",
    "Data": null
}
```

{% endtab %}
{% endtabs %}

Take a look at how you might call this method using our official libraries, or via `curl`:

Here "signature" is the "data" from the sign message.

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

```bash
curl -X POST http://localhost:8889/wallet/verifySignatureOffChain \
-H "Content-Type: application/json" \
-d '{
  "walletId": "xxxxxxxxxxxx",
  "message": "Hello",
  "signature": "xxxxxxxxxxxxx"
}'
```

{% endtab %}

{% tab title="Node.js (Fetch)" %}

```javascript
const axios = require('axios');

const apiUrl = 'http://localhost:8889/wallet/verifySignatureOffChain';
const headers = {
  'Content-Type': 'application/json',
};

const requestData = {
  walletId: 'xxxxxxxxxx',
  message: 'Hello',
  signature: 'xxxxxxxxxx',
};

axios.post(apiUrl, requestData, { headers })
  .then((response) => {
    console.log('Response:', response.data);
  })
  .catch((error) => {
    console.error('Error:', error);
  });

```

{% endtab %}

{% tab title="Python " %}

```python
import requests

url = 'http://localhost:8889/wallet/verifySignatureOffChain'

headers = {
    'Content-Type': 'application/json',
}

data = {
    "walletId": "xxxxxxxxxx",
    "message": "Hello",
    "signature": "xxxxxxxxxx"
}

try:
    response = requests.post(url, json=data, headers=headers)
    response.raise_for_status()  # Raise an exception for 4xx or 5xx status codes

    print('Response:', response.json())
except requests.exceptions.RequestException as error:
    print('Error:', error)

```

{% endtab %}

{% tab title="Golang" %}

```go
package main

import (
  "fmt"
  "strings"
  "net/http"
  "io/ioutil"
)

func main() {

  url := "http://localhost:8889/wallet/verifySignatureOffChain"
  method := "POST"

  payload := strings.NewReader(`{
  "walletId": "xxxxxxxxxxxxx",
  "message": "Hello",
  "signature": "xxxxxxxxxxxxx"
}`)

  client := &http.Client {
  }
  req, err := http.NewRequest(method, url, payload)

  if err != nil {
    fmt.Println(err)
    return
  }
  req.Header.Add("Content-Type", "application/json")

  res, err := client.Do(req)
  if err != nil {
    fmt.Println(err)
    return
  }
  defer res.Body.Close()

  body, err := ioutil.ReadAll(res.Body)
  if err != nil {
    fmt.Println(err)
    return
  }
  fmt.Println(string(body))
}
```

{% endtab %}
{% endtabs %}


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