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Geocoder

Uses various external web services to convert addresses to latitude/longitude coordinates, or to find the closest addresses to latitude/longitude coordinates (reverse geocode). Some services have additional information available, such as time zone or elevation.

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Typical Uses

Find coordinates and create geometry for a list of street addresses
Find addresses that match coordinates

How does it work?

The Geocoder provides a single interface to numerous geocoding web services. Once a service is selected, the appropriate parameters are presented, including connection credentials and the expected attributes the service needs to perform geocoding.

As features pass through the transformer, these attributes are passed to the service, and the results retrieved.

If the feature is successfully matched by the service, the results (attributes and/or geometry) are added to the feature and it is output through the Output port.

If the feature geocoding fails for any reason (including addresses not found, invalid coordinates, or failed credential authentication), it is output through the <Rejected> port.

Modes

The Geocoder can perform a variety of tasks, dependent upon which service you choose to use. Each service will provide one or more of these modes of geocoding:

Forward Street Address Geocoding	Single free form street address to latitude/longitude values, for example: "7445, 132nd Street, Surrey, BC, V3W 1J8" Discrete street address elements to latitude/longitude values, for example: "7445" "132nd" "Street" "Surrey" "BC" "V3W 1J8"
Forward Street Address with Proximity Geocoding	Single free form street address and approximate latitude/longitude to precise latitude/longitude values Discrete street address elements and approximate latitude/longitude to precise latitude/longitude values
Forward IP Address Geocoding	IP address string to latitude/longitude values
Reverse Street Address Geocoding	Latitude/longitude values to a single street address string
Reverse Elevation Geocoding	Latitude/longitude values to elevation in meters
Reverse Timezone Geocoding	Latitude/longitude values to timezone code, name and offset

The geocoding service result is stored in output feature attributes, feature geometry, or both. For example, latitude/longitude output is represented on the feature as a point geometry, and also as ‘_latitude’ and ‘_longitude’ attributes.

Usage Notes

Many services have restrictions on how their results may be used or displayed. Check with your chosen service for terms and conditions. See available services.
The expected input address format varies between services. See documentation provided by your chosen service for details.
If you need to create address strings for your chosen service, you can build them right in the Geocoder using the Text Editor, or consider using the AttributeManager to construct them as persistent attributes.

Configuration

Input Ports

Output Ports

Output

When the geocoding lookup is successful, the transformer will output the feature with added attributes and replaced geometry. Possible added attributes:

_address	A single-line address
_address_json	A multipart address in JSON format (if geocoder result fields are not predictable).
_latitude, _longitude	Latitude, Longitude
_elevation_meters, _elevation_feet, _elevation_resolution	Elevation in meters and feet, as well as margin of error in elevation value.
_timezone	Timezone short code. Example: America/Vancouver
_timezone_name	Timezone description. Example: Pacific Daylight Time
_timezone_offset	Offset from UTC in seconds. May be negative or positive.
_timezone_current_dst	Current offset in seconds from standard time during daylight saving time. Typically 0 or 3600, but other values are possible.

Note that attributes may be output in a corrected form from how they were entered.

For example, supplying “7445 132 street, surrey, bc” for forward geocoding might result in an output ‘_address’ attribute value of “7445 132 St, Surrey, BC V3W, Canada”. This can be a useful result for standardization of address data.

Parameters

This is a complete list of possible parameters for all services accessed by the Geocoder. Only the service-specific required parameters will be shown in the transformer once a service has been chosen.

Connection

Certain providers require the user to specify additional credentials, for example an API key, or a username and password, before performing the geocoding. Custom URLs are also required or allowed for some services.

URL

The URL field points to an alternative server location. This will usually be a self-hosted version of the online product, often using the customer’s own data instead of the generic, worldwide dataset available to the public.

API Key

Some services require the use of an API key, which is typically obtained by registering on the service website.

Services that require a key cannot be used without one, typically because it is a paid service or enforces limits.

Services where a key is optional generally provide improved performance or higher limits with a key than for unregistered users.

Username/Password

Client/Secret

Some services require or allow authentication with a username and password, or a client key and secret, similar to API Keys.

Geocoding Parameters

This is the full list of possible parameters from all services. Note that every service will not support every parameter listed below.

Mode	If the chosen service supports multiple geocoding modes, they will be available for selection here; for example, the Google service supports Forward, Reverse, Elevation, and Timezone modes. If not, forward geocoding is always assumed. This choice also determines which input mode becomes active. Forward geocoding accepts input in the form of a street or IP address, while elevation, reverse, and timezone geocoding take in latitude and longitude for input. Proximity geocoding allows the specification of a latitude and longitude in addition to the address being geocoded; the location is used to get a more accurate result.
Street Address	For a single line address, a comma-separated list of the address elements. For example, 123 Main Street, Surrey, BC, Canada. This string may be easily constructed from separate attributes, if required, by using the text editor to combine them right in the transformer, or using the AttributeManager earlier in the workspace. Note that some services are more lenient than others when it comes to the format of the address string. For discrete address elements, the street address will typically contain only the house number and street name. For example, 123 Main Street. This is used in conjunction with other fields to specify a full address.
City	The name of the city, for use in discrete address specification.
Province/State	The full name or abbreviation for the province or state component of a discrete address specification.
Postal/ZIP Code	The postal code or zip code component of a discrete address specification.
Latitude/Longitude	Distinct values for a latitude longitude pair, eg: Latitude: 49.1044 Longitude: -122.8011
IP Address	An IPv4 or IPv6 address. Example: 199.7.157.0, or 2001:0db8:0a0b:12f0:0000:0000:0000:0001
Return Language	For some services, a language for geocoding results can be specified. This will usually apply to corrected addresses for forward geocoding as well as reverse geocoding result addresses. Example: Reverse geocoding 52.07, 4.28 will return “The Hague” in English (en), but “Den Haag” in Dutch (nl).

Geocoding Services

Geocoding Services and Available Modes

The following services are supported:

Service	Modes
ArcGIS Online	Forward, Reverse
ArcGIS Server	Forward, Reverse
Bing	Forward, Reverse
FreeGeoIP.net	IP Address
Geocode.Farm	Forward, Reverse
Geocoder.ca	Forward, Reverse
Google	Forward, Reverse, Elevation, Timezone
HERE	Forward, Reverse
IPInfo.io	IP Address
Mapzen	Forward, Reverse
OpenCage	Forward, Reverse
OpenStreetMap	Forward, Reverse
TAMU	Forward, with census region information

Note that many services have additional requirements for use. A common requirement is that the resulting data be displayed on a map from the same service. Storage of result data in a database may also require additional fees. Please consult the terms of service of the geocoding providers (listed below) to ensure that your use is in compliance.

Geocoding Service Provider Information

ArcGIS Online	To access this geocoding service, you need to provide valid ArcGIS Online access credentials. Contact Esri to set up your own ArcGIS Online account: http://www.arcgis.com/features/plans/pricing.html. Note that use of this Geocoder transformer may use up credits and you may be subject to transaction limits. For more information, please see https://developers.arcgis.com/rest/geocode/api-reference/overview-world-geocoding-service.htm. Please review the terms of service before use: https://developers.arcgis.com/terms.
ArcGIS Server	This service type makes use of a published geocoder service on a local ArcGIS Server installation. For more information, please see http://server.arcgis.com/en/server/latest/publish-services/windows/geocode-services.htm.
Bing	To access this geocoding service, you need to provide valid Bing Maps access credentials. Contact Microsoft to set up your own Bing Maps account: https://www.microsoft.com/maps/Licensing/licensing.aspx. Note that use of this Geocoder transformer may use up credits and you may be subject to transaction limits. Please review the terms of service before use: https://www.microsoft.com/maps/product/terms.html.
FreeGeoIP.net	There may be transaction limits when using this service. For more information please see: https://freegeoip.net.
Geocode.Farm	To access this geocoding service, you need to provide valid Geocode.Farm access credentials. Contact Geocode.Farm to set up your own account: https://geocode.farm/register. Note that use of the Geocoder transformer with this service may use up credits and you may be subject to transaction limits. Please review the terms of service before use: https://geocode.farm/policies/terms-of-service.
Geocoder.ca	To access this geocoding service, you need to provide valid Geocoder.ca access credentials. Contact Geocoder.ca to set up your own account: http://geocoder.ca/?register=1. Note that use of the Geocoder transformer with this service may use up credits and you may be subject to transaction limits. Please review the terms of service before use: http://geocoder.ca/?terms=1.
Google	To access this geocoding service, you need to provide a valid Google Maps Geocoding API key. Contact Google to set up your own account: https://developers.google.com/maps/documentation/geocoding/get-api-key. Note that use of the Geocoder transformer with this service may use up credits and you may be subject to transaction limits. For more information, please see https://developers.google.com/maps/documentation/geocoding/usage-limits. Please review the terms of service before use: https://developers.google.com/maps/terms. Important: The Google Maps Geocoding API may only be used in conjunction with displaying results on a Google map. It is prohibited to use Google Maps Geocoding API data without displaying a Google map. For more info, please see: https://developers.google.com/maps/documentation/geocoding/policies.
HERE	To access this geocoding service, you need to provide valid HERE access credentials. Contact HERE to set up your own account: https://developer.here.com/plans/api/geocoder. Note that use of this Geocoder transformer may use up credits and you may be subject to transaction limits. You are not allowed to display or visualize results on any third party content (such as map, views from streets, or satellite imagery) not owned by HERE. Please review the terms of service for important information on usage restrictions: https://developer.here.com/terms-and-conditions.
IPInfo.io	This geocoding service has limited transaction volumes based on your subscription level. Contact IPInfo.io to set up your own account: https://ipinfo.io/pricing. Please review the terms of service before use: https://ipinfo.io/developers.
Mapzen	To access this geocoding service, you need to provide valid Mapzen access credentials. Contact Mapzen to set up your own account: https://mapzen.com/projects/search. Note that this geocoding service is subject to transaction limits. Please review the terms of service before use: https://mapzen.com/terms.
OpenCage	To access this geocoding service, you need to provide valid OpenCage Geocoder access credentials. Contact OpenCage Data to set up your own account: https://geocoder.opencagedata.com/pricing. Note that use of this Geocoder transformer may use up credits and you may be subject to transaction limits. Please review the terms of service before use: https://geocoder.opencagedata.com/terms.
OpenStreetMap (Nominatim)	This service is intended for use with a self-hosted Nominatim server. More information on installing a Nominatim server is available at: http://wiki.openstreetmap.org/wiki/Nominatim/Installation. To use your own server with the Geocoder, supply the full URL. This will typically end in “search” - for example, http://nominatim.example.com/search. OpenStreetMaps’s Nominatim server, while publicly available, is not intended for heavy use and has several usage restrictions which make it inappropriate for use with FME in almost all cases: http://wiki.openstreetmap.org/wiki/Nominatim_usage_policy.
TAMU (Texas A&M University Geoservices)	To access this geocoding service, you need to provide valid access credentials. Contact Texas A&M Geoservices to set up your own account: http://geoservices.tamu.edu/Pricing. Note that use of the Geocoder transformer with this service may use up credits and you may be subject to transaction limits. Please review the terms of service before use: http://geoservices.tamu.edu/About/Legal.

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.

How to Set Parameter Values

Using the Text Editor

The Text Editor provides a convenient way to construct text strings (including regular expressions) from various data sources, such as attributes, parameters, and constants, where the result is used directly inside a parameter.

Text Editor

Using the Arithmetic Editor

The Arithmetic Editor provides a convenient way to construct math expressions from various data sources, such as attributes, parameters, and feature functions, where the result is used directly inside a parameter.

Arithmetic Editor

Conditional Values

Set values depending on one or more test conditions that either pass or fail.

Parameter Condition Definition Dialog

Content

Expressions and strings can include a number of functions, characters, parameters, and more - whether entered directly in a parameter or constructed using one of the editors.

Content Types

String Functions	These functions manipulate and format strings.
Special Characters	A set of control characters is available in the Text Editor.
Math Functions	Math functions are available in both editors.
Math Operators	These operators are available in the Arithmetic Editor.
FME Feature Functions	These return primarily feature-specific values.
FME Parameters	FME and workspace-specific parameters may be used.
Working with User Parameters	Create your own editable parameters.

Reference

Processing Behavior	Feature-Based
Feature Holding	No
Dependencies	External geocoding web service(s)
FME Licensing Level	FME Professional Edition and above
Aliases
History	Released FME 2017.0
Categories	Integrations Web

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Timeout	The user may optionally provide a value in this field to set the maximum amount of time, in seconds, to spend waiting on a single request. After the specified amount of time, if a request has not completed, the request will be retried, to a maximum of 3 attempts. If it does not succeed, the feature will be output with an error code.
Maximum Concurrent Requests	This specifies the number of geocoding requests to make in parallel. Please note that this may incur rate limiting from the geocoding service. The Geocoder will automatically wait and retry the request to a maximum of 3 attempts after a failure due to rate limiting.