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sidebar_position: 2
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import Tabs from '@theme/Tabs';
import TabItem from '@theme/TabItem';

# Check BLOB
 Checks the existence of a BLOB by its SHA256 digest



`Function CheckBlob(Val URL, Val SHA256, Val AdditionalHeaders = "") Export`

  | Parameter | CLI option | Type | Required | Description |
  |-|-|-|-|-|
  | URL | --url | String | ✔ | Ollama server URL |
  | SHA256 | --digest | String | ✔ | SHA256 BLOB digest |
  | AdditionalHeaders | --headers | Map Of KeyAndValue | ✖ | Additional request headers, if necessary |

  
  Returns:  Map Of KeyAndValue - Processing result

<br/>

:::tip
Method at API documentation: [Check if a Blob Exist](https://github.com/ollama/ollama/blob/main/docs/api.md#check-if-a-blob-exists)
:::
<br/>



```bsl title="1C:Enterprise/OneScript code example"
    URL    = "https://api.athenaeum.digital/ollama";
    Token  = "10KO..."; // Authorization - not part API Ollama
    SHA256 = "72e957f936152af0a3aacf055fb01c73c7a9fb1cc056b9ef536afaa7462ed2fc";

    AdditionalHeaders = New Map;
    AdditionalHeaders.Insert("Authorization", StrTemplate("Bearer %1", Token));

    Result = OPI_Ollama.CheckBlob(URL, SHA256, AdditionalHeaders);
```