Accessing Ogre using a POST request You can perform Ogre transformations directly by making a HTTP POST request: Convert to GeoJSON http://ogre.adc4gis.com/convert with the following params: upload - the file being uploaded sourceSrs (optional) - the original projection targetSrs (optional) - the target projection forcePlainText (optional) - force `text/plain` instead of `application/json` rfc7946