> For the complete documentation index, see [llms.txt](https://docs.coherent.global/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.coherent.global/spark-apis/webassembly-module-api.md).

# WebAssembly module API

Get the WebAssembly module (Wasm) ZIP bundle for a Spark service. This can be used to run Spark services locally.

Returns: Wasm ZIP bundle file.

{% code overflow="wrap" %}

```shellscript
## Depending on the desired reference parameter, different URI are available.
GET /{tenant}/api/v3/nodegen/getnodegenzipbyId/folders/{folder}/services/{service}
GET /{tenant}/api/v3/nodegen/getnodegenzipbyId/version/{versionId}
GET /{tenant}/api/v3/nodegen/getnodegenzipbyId/service/{serviceId}
GET /{tenant}/api/v3/nodegen/public/getnodegenzipbyId/folders/{folder}/services/{service}
GET /{tenant}/api/v3/nodegen/public/getnodegenzipbyId/version/{versionId}
GET /{tenant}/api/v3/nodegen/public/getnodegenzipbyId/service/{serviceId}
```

{% endcode %}

### Authorization

* `Bearer {token}` accessible from [Authorization - Bearer token](/spark-apis/authorization-bearer-token.md) or systematically via [Client Credentials](/identity-and-access-management/client-credentials.md).
  * The request headers should include a key for `Authorization` with the value `Bearer {token}`.
* API key created from [Authorization - API keys](/spark-apis/authorization-api-keys.md).\
  The [Authorization - API keys](/spark-apis/authorization-api-keys.md#api-key-groups) must contain [Manage users](/tenant-administration/manage-users.md#user-groups) that are also assigned to [Permissions - Features permissions](/spark-apis/authorization-api-keys/permissions-features-permissions.md) `Spark.GetNodegenZip.json` or `Spark.AllEncompassingProxy.json`.
  * The request headers should include the keys `x-synthetic-key` and `x-tenant-name` with the values of the API key and tenant name respectively.
* No Authorization is required for [Authorization - Public APIs](/spark-apis/public-apis.md).

### Path parameters

| Key              | Value                                                                                                                                                                                 |
| ---------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `environment` \* | Environment is part of your [Login and logout](/navigation/login-and-logout.md#log-in-to-spark) URL.                                                                                  |
| `tenant` \*      | Tenant is part of your [Login and logout](/navigation/login-and-logout.md#log-in-to-spark) URL and also available in the [Navigation menu](/navigation/navigation-menu.md#user-menu). |
| `versionId` \*   | `version_id` of the requested service version.                                                                                                                                        |
| `serviceId` \*   | `service_id` of the requested service. The Wasm from the latest service version will be downloaded.                                                                                   |
| `folder` \*      | Folder associated with the Wasm.                                                                                                                                                      |
| `service` \*     | Service associated with the Wasm. The Wasm from the latest service version will be downloaded.                                                                                        |

### Response

`HTTP 200 OK` `Content-Type: application/octet-stream`

Returns the Wasm ZIP bundle.