--- schema_version: "1" id: cf3936fb6a13e997a93f71ef14120281897d5a17923d145d3006cabe3af7e295 title: DataWeave (dw) Format collection: mulesoft version: current locale: en-us portal_url: https://docs.salesforce.com/mulesoft/current/en-us/dataweave/2.9/dataweave-formats-dw.md canonical_url: https://docs.mulesoft.com/dataweave/2.9/dataweave-formats-dw source_site: docs.mulesoft.com content_type: documentation content_hash: e3a80fcae51a33dc3c0b5714f22824b8ffadf6b0a34e1d6386c83d1cf4653ece description: MuleSoft Documentation Site release: "2.9" latest: false --- --- product: DataWeave version: 2.9 keywords: format, dw, */dw, application/dw --- # DataWeave (dw) Format > For the full documentation index, see: https://docs.mulesoft.com/llms.txt MIME type: `application/dw` ID: `dw` The DataWeave (dw) format is the canonical format for all transformations. This format can help you understand how input data is interpreted before it is transformed to a new format. > [!NOTE] This format is intended to help you debug the results of DataWeave transformations. It is > significantly slower than other formats. It is not recommended to be used in production > applications because it can impact the performance. ## Example: Express XML in the DataWeave (dw) Format The following example shows how to transform XML input to the DataWeave (dw) format. ### Input The example uses the following XML snippet as input. ```xml Mariano DeAchaval Leandro Shokida ``` #### Output Output: in DataWeave Format ```dataweave { employees: { employee: { firstname: "Mariano", lastname: "DeAchaval" }, employee: { firstname: "Leandro", lastname: "Shokida" } } } as Object {encoding: "UTF-8", mimeType: "text/xml"} ``` ## Configuration Properties DataWeave supports the following configuration properties for this format. ### Reader Properties This format accepts properties that provide instructions for reading input data.

Parameter	Type	Default	Description
`externalResources`	`Boolean`	`false`	Enables the `readUrl` to read external entities. Valid values are `true` or `false`.
`javaModule`	`Boolean`	`false`	Enables Java module functions to load. Valid values are `true` or `false`.
`onlyData`	`Boolean`	`false`	Handles only data and not other types of content, such as functions, when set to `true`. The DataWeave parser runs faster in the `onlyData` mode. Valid values are `true` or `false`.
`privileges`	`String`	`''`	Accepts a comma-separated list of privileges to use in the format, such as `'Resources,Properties'`.

### Writer Properties This format accepts properties that provide instructions for writing output data.

Parameter	Type	Default	Description
`bufferSize`	`Number`	`8192`	Size of the buffer writer, in bytes. The value must be greater than `8`.
`deferred`	`Boolean`	`false`	Generates the output as a data stream when set to `true`, and defers the script’s execution until the generated content is consumed. Valid values are `true` or `false`.
`ignoreSchema`	`Boolean`	`false`	Ignores the schema when set to `true`. Valid values are `true` or `false`.
`indent`	`String`	`' '`	String to use for indenting.
`maxCollectionSize`	`Number`	`-1`	Maximum number of elements allowed in an array or an object. `-1` indicates no limitation.
`onlyData`	`Boolean`	`true`	Handles only data and not other types of content, such as functions, when set to `true`. The DataWeave parser runs faster in the `onlyData` mode. Valid values are `true` or `false`.

## Supported MIME Types This format supports the following MIME types.

MIME Type
`*/dw`