> ## Documentation Index
> Fetch the complete documentation index at: https://doc.lucidworks.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Download Blob

> Job configuration specifications

export const schema = {
  "type": "object",
  "title": "Download Blob",
  "description": "Download and update Blob",
  "required": ["id", "url", "blobId", "type"],
  "properties": {
    "id": {
      "type": "string",
      "title": "ID",
      "maxLength": 128,
      "pattern": "^[A-Za-z0-9_\\-]+$"
    },
    "url": {
      "type": "string",
      "title": "Url to download a Blob from"
    },
    "blobId": {
      "type": "string",
      "title": "Blob id"
    },
    "type": {
      "type": "string",
      "enum": ["blob-download"],
      "default": "blob-download",
      "hints": ["readonly"]
    }
  },
  "additionalProperties": false,
  "category": "Other",
  "categoryPriority": 1,
  "unsafe": false
};

export const SchemaParamFields = ({schema}) => {
  const sanitize = str => {
    if (typeof str !== "string") return str;
    return str.replace(/^"(.*)"$/s, "$1").replace(/\\/g, "").replace(/"/g, "'");
  };
  const formatDescription = str => {
    const s = sanitize(str);
    return (/[.!?]\)*$/).test(s) ? s : `${s}.`;
  };
  const {description, properties = {}, required: requiredProps = []} = schema;
  const visibleProps = useMemo(() => Object.entries(properties).filter(([, prop]) => !prop.hints?.includes("hidden")), [properties]);
  return <div>
      {description && <p>{formatDescription(description)}</p>}

      {visibleProps.map(([name, prop]) => {
    const isRequired = requiredProps.includes(name);
    const hasDefault = prop.default !== undefined;
    const rawDefault = prop.default;
    const isComplexDefault = hasDefault && (typeof rawDefault === "object" || typeof rawDefault === "string" && (rawDefault.length > 20 || rawDefault.includes('"')));
    const fieldProps = {
      key: name,
      body: prop.title || name,
      type: prop.type,
      ...prop.title && ({
        post: [<><span className="text-stone-400 dark:text-stone-500">API property: </span>{name}</>]
      }),
      ...isRequired && ({
        required: true
      }),
      ...!isComplexDefault && hasDefault ? {
        default: sanitize(String(rawDefault))
      } : {}
    };
    const isObject = prop.type === "object" && prop.properties;
    const isArrayOfObjects = prop.type === "array" && prop.items?.type === "object" && prop.items.properties;
    return <ParamField {...fieldProps}>
            {prop.description && <p>{formatDescription(prop.description)}</p>}

            {isComplexDefault && <div className="flex">
                <p>
                  <strong>Default:</strong>
                </p>
                <pre className="!my-0">
                  <code>
                    {JSON.stringify(rawDefault, null, 2)}
                  </code>
                </pre>
              </div>}

            {isArrayOfObjects && <div className="flex">
              <p>
                <strong>Object attributes:</strong>
              </p>
              <pre className="!my-0">
                <code>
                  {'{\n'}
                  {Object.entries(prop.items.properties).map(([iname, iprop]) => <>
                      {`  ${iname}`}
                      {prop.items?.required?.includes(iname) && <span style={{
      color: 'red'
    }}> required</span>}
                      {`: {\n    display name: ${sanitize(iprop.title || '')}\n    type: ${iprop.type}\n  }\n`}
                    </>)}
                  {'}'}
                </code>
              </pre>
              </div>}

            {isObject && <Expandable title="properties">
                <SchemaParamFields schema={{
      properties: prop.properties,
      required: prop.required
    }} />
              </Expandable>}
          </ParamField>;
  })}
    </div>;
};

export const LwTemplate = ({title = "Key questions to get you started", icon = "sparkles", cta = "Powered by Agent Studio", linkHref = "https://lucidworks.com/demo/?utm_source=docs&utm_medium=referral&utm_campaign=docs_cta_ai"}) => {
  const [isLoaded, setIsLoaded] = useState(false);
  useEffect(() => {
    const timer = setTimeout(() => {
      setIsLoaded(true);
    }, 500);
    return () => clearTimeout(timer);
  }, []);
  return <div className="lw-template-container">
      <Card title={title} icon={icon}>
        {isLoaded && <span dangerouslySetInnerHTML={{
    __html: `<lw-template id="a029c1a9-28be-427e-b0e1-5d918920246a"></lw-template
            >`
  }} />}
        <Link href={linkHref} className="agent-studio-link text-left text-gray-600 gap-2 dark:text-gray-400 text-sm font-medium flex flex-row items-center hover:text-primary dark:hover:text-primary-light group-hover:text-primary group-hover:dark:text-primary-light">Powered by Lucidworks Agent Studio</Link>
      </Card>
    </div>;
};

[localhost link]: http://localhost:3000/docs/lucidworks-search/09-developer-documentation/config-specs/jobs/download-blob

[mintlify link]: https://doc.lucidworks.com/docs/lucidworks-search/09-developer-documentation/config-specs/jobs/download-blob

[old doc.lw link]: https://doc.lucidworks.com/managed-fusion/5.9/qyob7a

Lucidworks Search accepts large binary objects (blobs) and stores them in Solr. After a blob is uploaded to Lucidworks Search, you can download the blob to your local computer, modify it, and then upload it again to Lucidworks Search.

Lucidworks Search accepts the following types of blobs:

* Analytics catalog
* Connector plugin
* File
* Index stage plugin
* Managed Javascript (index)
* Managed Javascript (query)
* Open NLP model
* Other
* Query stage plugin
* Spark NLP model

For more information, see [Blob storage](/docs/lucidworks-search/04-move-data-in/blob-storage/overview).

To download a blob, sign in to Lucidworks Search and click **System > Blobs**. In the left panel, click the existing blob you want to download. When the blob information displays, click **Download**. Then you can open the file on your computer and modify it.

To upload the edited file, open the existing blob and click **Replace Blob** and select the edited file.

The properties of a blob can vary based on the type, but most include these:

* **id.** The unique identifier for the blob.
* **path.** The URL or location where the blob is stored.
* **dir.** The directory where the blob is located.
* **filename.** The filename of the blob.
* **contentType.** The type of content in the blog. Examples include application/zip, application/json, text/csv, text/plain, and application/java-archive.
* **size.** The size of the blob.
* **modifiedTime.** The last date and time the blob was modified in Unix epoch time in a `yyyy-mm-ddThh:mm:ssZ` format.
* **version.** The version of the blob.
* **metadata.** Additional data associated with the blob that varies based on the type of blob. Examples include drivers and resource type.

<LwTemplate />

## Configuration properties

<SchemaParamFields schema={schema} />