# JSBlobLoaderBuilder

## Overview

The `JSBlobLoaderBuilder` utility facilitates constructing blob loader URLs for downloading or embedding data from a specified data provider. It supports configuration of data sources, file metadata, and database settings. ## Functionality

### URL Construction

* `build()` generates a blob loader URL string for use in custom HTML or as a redirect URL for direct downloads.

### Data Source Configuration

* `datasource(datasource)` specifies the server and table combination for the data provider.
* `serverAndTable(servername, tablename)` assigns the server and table names for the builder's column data provider.

### File Metadata

* `filename(filename)` sets the filename for the downloaded data, affecting the `Content-Disposition` header.
* `mimetype(mimetype)` specifies the MIME type of the data, applied in the `Content-Type` header.

### Row Management

* `rowid(rowid)` allows specifying single or composite primary keys for identifying rows in the data source.

## Methods Summarized

| Type                                                                                     | Name                                                                          | Summary                                                                                                                         |
| ---------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------- |
| [String](/reference/servoycore/dev-api/js-lib/string.md)                                 | [build()](#build)                                                             | Builds the blobloader url string that can be used in custom html or send to the browser as a redirect url for direct downloads. |
| [JSBlobLoaderBuilder](/reference/servoycore/dev-api/client-utils/jsblobloaderbuilder.md) | [datasource(datasource)](#datasource-datasource)                              | Sets the datasource (server/table combination) of the builder's column dataprovider.                                            |
| [JSBlobLoaderBuilder](/reference/servoycore/dev-api/client-utils/jsblobloaderbuilder.md) | [filename(filename)](#filename-filename)                                      | Sets the filename of the data in the dataprovider.                                                                              |
| [JSBlobLoaderBuilder](/reference/servoycore/dev-api/client-utils/jsblobloaderbuilder.md) | [mimetype(mimetype)](#mimetype-mimetype)                                      | Sets the mimetype of the data in the dataprovider.                                                                              |
| [JSBlobLoaderBuilder](/reference/servoycore/dev-api/client-utils/jsblobloaderbuilder.md) | [rowid(rowid)](#rowid-rowid)                                                  | Sets the rowid (single pk or composite pk) of the table.                                                                        |
| [JSBlobLoaderBuilder](/reference/servoycore/dev-api/client-utils/jsblobloaderbuilder.md) | [rowid(rowid)](#rowid-rowid)                                                  | Sets the rowids (single pk or composite pk) of the table.                                                                       |
| [JSBlobLoaderBuilder](/reference/servoycore/dev-api/client-utils/jsblobloaderbuilder.md) | [serverAndTable(servername, tablename)](#serverandtable-servername-tablename) | Sets the server name and table name of the builder's column dataprovider.                                                       |

## Methods Detailed

### build()

Builds the blobloader url string that can be used in custom html or send to the browser as a redirect url for direct downloads.

**Returns:** [String](/reference/servoycore/dev-api/js-lib/string.md) the blobloader url pointing to the data of the given dataprovider

### datasource(datasource)

Sets the datasource (server/table combination) of the builder's column dataprovider.

**Parameters**

* [String](/reference/servoycore/dev-api/js-lib/string.md) **datasource** The datasource for this builder's column dataprovider.

**Returns:** [JSBlobLoaderBuilder](/reference/servoycore/dev-api/client-utils/jsblobloaderbuilder.md) return the builder itself

### filename(filename)

Sets the filename of the data in the dataprovider.\
If given, it will set the Content-disposition header to: attachment; filename=filename

**Parameters**

* [String](/reference/servoycore/dev-api/js-lib/string.md) **filename** The filename for the data.

**Returns:** [JSBlobLoaderBuilder](/reference/servoycore/dev-api/client-utils/jsblobloaderbuilder.md) return the builder itself

### mimetype(mimetype)

Sets the mimetype of the data in the dataprovider.\
This will be set in the content type header of the response for this data.

**Parameters**

* [String](/reference/servoycore/dev-api/js-lib/string.md) **mimetype** the mime type of the data (set as the content type header)

**Returns:** [JSBlobLoaderBuilder](/reference/servoycore/dev-api/client-utils/jsblobloaderbuilder.md) return the builder itself

### rowid(rowid)

Sets the rowid (single pk or composite pk) of the table.

**Parameters**

* [Object](/reference/servoycore/dev-api/js-lib/object.md) **rowid** The rowid, can be a single value or an array of values

**Returns:** [JSBlobLoaderBuilder](/reference/servoycore/dev-api/client-utils/jsblobloaderbuilder.md) return the builder itself

### rowid(rowid)

Sets the rowids (single pk or composite pk) of the table.

**Parameters**

* [Array](/reference/servoycore/dev-api/js-lib/array.md) **rowid** The rowid; can be a single value or an array of values.

**Returns:** [JSBlobLoaderBuilder](/reference/servoycore/dev-api/client-utils/jsblobloaderbuilder.md) return the builder itself

### serverAndTable(servername, tablename)

Sets the server name and table name of the builder's column dataprovider.

**Parameters**

* [String](/reference/servoycore/dev-api/js-lib/string.md) **servername** The servername for this builder's column dataprovider.
* [String](/reference/servoycore/dev-api/js-lib/string.md) **tablename** The tablename for this builder's column dataprovider.

**Returns:** [JSBlobLoaderBuilder](/reference/servoycore/dev-api/client-utils/jsblobloaderbuilder.md) return the builder itself

***


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