Transformation Services include the following:
Authentication
See Web Services Authentication.
Common Request Elements
Workspace Published Parameters
An FME published parameter defined in a workspace can be directly passed to a web service as a request parameter. When the web service submits a transformation job to FME Flow, the FME Flow uses the value of the published parameter to run the workspace.
Syntax
The published parameters can be provided to the workspace using the HTTP POST or GET method. Assuming the GET method is used, then the syntax for the published parameter URL parameters is as follows:
http://hostname/<service>/<repository>/<workspace>?{ParameterName[=ParameterValue]&}
Example
Here is a URL to invoke the austinDownload.fmw workspace through the data download service (note the URL parameters, such as COORDSYS and its value LL84):
http://hostname/fmedatadownload/Samples/austinDownload.fmw?COORDSYS=LL84&BBOX_COORDSYS=LL84
&FORMAT_GENERIC=SHAPE&MINX=-100&MINY=25&MAXX=-90&MAXY=35&THEMES=airports
The published parameters from the example above are discussed in the following table. You may also download the austinDownload.fmw workspace from the Samples repository in order to see how the published parameters are configured in the workspace.
|
Parameter name |
Parameter value |
Description |
|---|---|---|
|
COORDSYS |
LL84 |
This is the Writer's Coordinate System parameter (i.e. the output coordinate). |
| BBOX_COORDSYS | LL84 | This is the Reader's Search Envelope Coordinate System parameter for the search envelope provided by the MIN*/MAX* published parameters, which collectively restrict the amount of data that is actually read by FME. Also, this published parameter is used to reproject the search envelope to match the source data's coordinate system in order to perform a hard clip within the workspace using a Clipper transformer. |
| FORMAT_GENERIC | SHAPE | This is the Generic Writer's Output Format parameter. |
| MINX | -100 | This is the Reader's Search Envelope Min X parameter that will be used to select and clip data. This published parameter is used by both the Reader and a Clipper transformer in order to restrict the amount of data that is read and then to hard clip the data respectively. |
| MINY | 25 | This is the Reader's Search Envelope Min Y parameter. See MINX for further details. |
| MAXX | -90 | This is the Reader's Search Envelope Max X parameter. See MINX for further details. |
| MAXY | 35 | This is the Reader's Search Envelope Max Y parameter. See MINX for further details. |
| THEMES | airport | This is the Reader's Feature Types to Read parameter. |
Web Services-Specific Job Directives
See Job Directives for details.
Supported FME Engine Directives
The following table provides information about the FME Engine directives.
|
Directive name |
Directive value |
Description |
|---|---|---|
|
fme_LOG_FILENAME |
FME translation log file name. |
Specify the FME translation log file name instead of using the default file name. |