data-services/geocoder/README.md
2015-12-22 19:19:15 +01:00

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Markdown

CartoDB Internal Geocoder
====
# API Response Format
## Parameters
| Field | Explanation | Type |
| ------ |:--------------------------------------------:| ------:|
| q | Input query text | text |
| success| Was it successfully geocoded? | boolean|
| geom | Resolved geometry, NULL if none | wkb |
| c | Input country text if provided and variable | text |
* ```q``` will be searched on in lowercase but returned in input form
* ```c``` will always be returned in the form it was given, including empty string and NULL
* ```c``` will be resolved to an ISO code using a lookup dictionary
* ```c``` when NULL or empty will make the search for that entry fall back to countryless
## Existing Services
### Level 0 administrative regions (Countries)
##### Data type
Polygons
##### Parameters
| name | type | optional? |
| --------- |:-------:| ---------:|
| name | text[] | false |
##### Current coverage
Global
#### Example requests
```sql
SELECT (geocode_admin0_polygons(Array['Spain', 'USA', ''])).*
```
#### Links
[See it on the api](http://geocoding.cartodb.com/api/v2/sql?q=SELECT%20(geocode_admin0_polygons(Array[%27Spain%27,%20%27USA%27,%20%27%27])).*)
[See plpgsql](https://github.com/CartoDB/data-services/blob/master/geocoder/admin0/sql/geocoder.sql)
### Level 1 administrative regions (States/Provinces)
##### Data type
Polygons
##### Parameters
| name | type | optional? |
| --------- |:-------:| ---------:|
| name | text[] | false |
| country | text[] | true |
| countries | text[] | true |
##### Current coverage
Global
#### Example requests
```sql
SELECT (geocode_admin1_polygons(Array['TX','Cuidad Real', 'sevilla'])).*
```
```sql
SELECT (geocode_admin1_polygons(Array['NH', 'Vermont'], 'United States')).*
```
```sql
SELECT (geocode_admin1_polygons(Array['az', 'az'], Array['Ecuador', 'USA'])).*
```
#### Links
[See it on the api](http://geocoding.cartodb.com/api/v2/sql?q=SELECT%20(geocode_admin1_polygons(Array[%27az%27,%20%27az%27],%20Array[%27Ecuador%27,%20%27USA%27])).*)
[See plpgsql](https://github.com/CartoDB/data-services/blob/master/geocoder/admin1/sql/geocoder.sql)
### Named Places
##### Data type
Points
##### Parameters
| name | type | optional? |
| -------------- |:-------:| ---------:|
| named_place | text[] | false |
| country_code | string | true |
| country_codes | text[] | true |
##### Current coverage
Global
#### Example requests
```sql
SELECT (geocode_namedplace(Array['Madrid', 'New York City', 'sunapee'])).*
```
```sql
SELECT (geocode_namedplace(Array['sunapee', 'sunapeeee', 'New York City'], 'USA')).*
```
```sql
SELECT (geocode_namedplace(Array['sunapee', 'sunapeeee', 'New York City', 'Madrid'], Array['', 'US', 'United States', NULL])).*
```
```sql
SELECT (geocode_namedplace(
Array['Portland', 'Portland', 'New York City'],
Array['Maine', 'Oregon', NULL],
'USA')).*
```
```sql
SELECT (geocode_namedplace(
Array['Portland', 'Portland', 'New York City'],
Array['Maine','Oregon', null],
NULL)).*
```
#### Links
[See it on the api](http://geocoding.cartodb.com/api/v2/sql?q=SELECT%20(geocode_namedplace(Array[%27sunapee%27,%20%27sunapeeee%27,%20%27New%20York%20City%27,%20%27Madrid%27],%20Array[%27%27,%20%27US%27,%20%27United%20States%27,%20NULL])).*)
[See plpgsql](https://github.com/CartoDB/data-services/blob/master/geocoder/namedplace/sql/geocode_namedplace.sql)
### IP Addresses
##### Data type
Points
##### Parameters
| name | type | optional? |
| -------------- |:-------:| ---------:|
| IP query array | text[] | false |
##### Current coverage
Global
#### Example request
```sql
SELECT (geocode_ip(Array['1.0.16.0', '::ffff:1.0.16.0', 'not an IP'])).*
```
#### Links
[See it on the api](http://geocoding.cartodb.com/api/v2/sql?q=SELECT%20(geocode_ip(Array[%271.0.16.0%27,%20%27::ffff:1.0.16.0%27,%20%27not%20an%20IP%27])).*)
[See plpgsql](https://github.com/CartoDB/data-services/blob/master/geocoder/ip-addresses/sql/geocoder.sql)
### Postal Code Polygons
##### Parameters
| name | type | optional? |
| -------------- |:-------:| ---------:|
| postal_code | text[] | false |
| country_code | string | true |
| country_codes | text[] | true |
##### Current coverage
United States, Canada, Australia, France
#### Example requests
```sql
SELECT (geocode_postalcode_polygons(Array['10013','11201','03782'])).*
```
```sql
SELECT (geocode_postalcode_polygons(Array['10013','11201','03782'], 'USA')).*
```
```sql
SELECT (geocode_postalcode_polygons(Array['10013','G9H','03782'], Array['USA', 'Canada', 'US'])).*
```
#### Links
[See it on the api](http://geocoding.cartodb.com/api/v2/sql?q=SELECT%20(geocode_postalcode_points(Array[%2703204%27],Array[%27ESP%27])).*)
[See plpgsql](https://github.com/CartoDB/data-services/blob/master/geocoder/postal-codes/sql/geocoder.sql)
### Postal Code Points
##### Parameters
| name | type | optional? |
| -------------- |:-------:| ---------:|
| postal_code | text[] | false |
| country_code | string | true |
| country_codes | text[] | true |
##### Current coverage
Global [see list](https://github.com/CartoDB/data-services/blob/master/geocoder/postal-codes/README.md#function-1)
#### Example requests
```sql
SELECT (geocode_postalcode_points(Array['10013','11201','03782'])).*
```
```sql
SELECT (geocode_postalcode_points(Array['10013','11201','03782'], 'USA')).*
```
```sql
SELECT (geocode_postalcode_points(Array['10013','G9H','03782'], Array['USA', 'Canada', 'US'])).*
```
#### Links
[See it on the api](https://geocoding.cartodb.com/api/v2/sql?q=SELECT%20(geocode_postalcode_points(Array[%2710013%27,%27G9H%27,%2703782%27],%20Array[%27USA%27,%20%27Canada%27,%20%27US%27])).*)
[See plpgsql](https://github.com/CartoDB/data-services/blob/master/geocoder/postal-codes/sql/geocoder.sql)