> For the complete documentation index, see [llms.txt](https://developer.esw.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.esw.com/getting-started/get-started-with-esw/readme-1/publish-your-docs.md).

# Access Tokens

Request OAuth 2.0 access tokens from the ESW **Security Token Service (STS)**.

Most integrations use:

* `grant_type=client_credentials`
* one or more space-separated `scope` values

### Token endpoint

Send a `POST` to:

`https://security-sts.<environment>.eshopworld.com/connect/token`

{% hint style="info" icon="brackets-curly" %}
STS expects `application/x-www-form-urlencoded` body parameters.
{% endhint %}

### Parameters

Include these fields in the request body:

* `grant_type`: OAuth 2.0 grant type. Use `client_credentials`.
* `scope`: Space-separated scopes. Example: `checkout.preorder.api.all`, `pricing.advisor.api.all`
* `client_id`: Client identifier provided by ESW.
* `client_secret`: Client secret provided by ESW.

### Examples

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

```sh
curl --location --request POST "https://security-sts.<environment>.eshopworld.com/connect/token" \
  --header "Content-Type: application/x-www-form-urlencoded" \
  --data-urlencode "grant_type=client_credentials" \
  --data-urlencode "scope=<space-separated-scopes>" \
  --data-urlencode "client_id=<client_id>" \
  --data-urlencode "client_secret=<client_secret>"
```

{% endtab %}

{% tab title="C# (RestSharp)" %}

```csharp
var client = new RestClient("https://security-sts.<environment>.eshopworld.com/connect/token");
var request = new RestRequest("", Method.Post);

request.AddHeader("Content-Type", "application/x-www-form-urlencoded");
request.AddParameter("grant_type", "client_credentials");
request.AddParameter("scope", "<space-separated-scopes>");
request.AddParameter("client_id", "<client_id>");
request.AddParameter("client_secret", "<client_secret>");

var response = client.Execute(request);
Console.WriteLine(response.Content);
```

{% endtab %}

{% tab title="Java (OkHttp)" %}

```java
OkHttpClient client = new OkHttpClient();

RequestBody body = new FormBody.Builder()
  .add("grant_type", "client_credentials")
  .add("scope", "<space-separated-scopes>")
  .add("client_id", "<client_id>")
  .add("client_secret", "<client_secret>")
  .build();

Request request = new Request.Builder()
  .url("https://security-sts.<environment>.eshopworld.com/connect/token")
  .post(body)
  .build();

Response response = client.newCall(request).execute();
System.out.println(response.body().string());
```

{% endtab %}
{% endtabs %}

See the [Postman collection](/getting-started/get-started-with-esw/readme/postman-collection.md#get-the-postman-collection) for working sandbox examples.

### Access Token Response

STS returns the access token and the token type (usually `Bearer`).

```json
{
    "access_token": "eyJhbGciOiJSUzI1NiIsImtpZC...I6IjQ3NkQ1QzE5QzI1Nzc0NUV",
    "expires_in": 3600,
    "token_type": "Bearer",
    "scope": "checkout.preorder.api.all"
}
```

### Use the token

Send the token on API requests:

```http
Authorization: Bearer <access_token>
```

For the full flow, see [Authentication](/getting-started/get-started-with-esw/readme/quickstart.md).


---

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