Accesses a URL via HTTP or HTTPS, performing a GET, PUT, POST, DELETE, HEAD, PATCH or OPTIONS operation.

This transformer replaces the HTTPFetcher, HTTPUploader, HTTPFileUploader, HTTPMultipartUploader, HTTPDeleter and HTTPHeader transformers.


The HTTP response body may be saved to an attribute, or a file. By default the body is saved to the attribute identified by the Response Body Attribute parameter.

The HTTP response status code will be stored in the attribute named by the Status Code Attribute parameter. By default this is the _http_status_code attribute. For more information on HTTP Status Codes, please refer to

In addition, the HTTP response headers will be saved in the list attribute specified by the List Attribute for Response Headers parameter. By default the headers are stored in the _headers{} list attribute. For a list of common HTTP response headers, please refer to

If an error occurs while accessing the URL, the feature will be output via the <Rejected> port. In addition, an error message will be set in the attribute named by the Error Attribute parameter.



Query String Parameters

This table can be used to create additional URL query parameters. The parameters will be appended to the URL given in the Request URL parameter. This can be useful when accessing a REST API endpoint which requires many parameters. The parameter names and values can be entered directly or constructed from attribute values.


This table can be used to create custom HTTP headers which will be sent along with the request. This can be used to customize the request that FME will make to the server. Header names and values can be entered directly or constructed from attribute values. In addition, the Name column provides a list of commonly used header names.


These parameters are only enabled when HTTP Method is PUT, POST, DELETE, or PATCH. An upload body is not required; for example, DELETE requests often have no upload body.


Save Response Body To File

Response Headers and Status

Concurrency / Looping Options

Rate Limiting

HTTP Client Options

Authentication Parameters

Editing Transformer Parameters

Using a set of menu options, transformer parameters can be assigned by referencing other elements in the workspace. More advanced functions, such as an advanced editor and an arithmetic editor, are also available in some transformers. To access a menu of these options, click beside the applicable parameter. For more information, see Transformer Parameter Menu Options.

Defining Values

There are several ways to define a value for use in a Transformer. The simplest is to simply type in a value or string, which can include functions of various types such as attribute references, math and string functions, and workspace parameters. There are a number of tools and shortcuts that can assist in constructing values, generally available from the drop-down context menu adjacent to the value field.

Dialog Options - Tables

Transformers with table-style parameters have additional tools for populating and manipulating values.

FME Community

The FME Community is the place for demos, how-tos, articles, FAQs, and more. Get answers to your questions, learn from other users, and suggest, vote, and comment on new features.

Search for samples and information about this transformer on the FME Community.

Keywords: URLFetcher