Creating Layer in GeoServer using REST

Question

As part of a possible solution to GeoServer WFS Row Level Security? I want create a layer in GeoServer via REST that supplies a SQL statement along with a userid.

I think i would create a feature type and publish it. I need to do this all in REST.

Does anyone have any code examples?

Answer 1

There are many things you can do with the GeoServer REST API that are not specifically documented and that there are not code examples for. Here's the strategy for tackling those.

First, start with the examples in the documentation. Make sure you are familiar with how you can create a simple new layer or workspace using an HTTP POST with either XML or JSON.

Then, through the GeoServer UI, manually create the object you need for which there is no documentation (in this case, a feature type).

Finally, manually browse to the GeoServer REST index (http://your-server/rest or http://your-server/geoserver/rest). Browse through the index until you find the feature type you just created. Append ".xml" or ".json" to the URL of this resource, and you will see its XML or JSON representation.

This representation is what you would have needed to POST to create the feature type through the API. The URL of the representation is the URL that you would have needed to POST to (for example, http://your-server/geoserver/rest/..../myFeatureTypeName.json).

You can use this strategy to figure out how to programmatically create or configure any resource in GeoServer.

Answer 2

I know this is an old question, but just in case anyone else is confused as I was. The important part is that you cannot create a layer from the http://geoserver/rest/layers endpoint.

If you are looking to add a vector layer, it is done through the feature type resource:

http://docs.geoserver.org/stable/en/user/rest/api/featuretypes.html

A POST to:

/workspaces/<ws>/datastores/<ds>/featuretypes

where is the workspace you want the feature type to live under, and the datasource to use will create a new vector feature type, ie layer.

If you are wondering about what you can POST, @Rohan is correct, the easiest way is to query for an existing feature type, IE an http GET to

/workspaces/<ws>/datastores/<ds>/featuretypes/<ft>.json 

which will return an existing feature type as json.

Answer 3

If you understand Java you might want to take a look at this simple code that uses REST to do all kinds of operations on GeoServer.

Answer 4

Your best reference is in the user guide. https://docs.geoserver.org/stable/en/user/rest/index.html#rest

Answer 5

To add a layer, a datastore and a featuretype should be defined. Assuming they are already defined along with a style (as described in the guide at http://boundlessgeo.com/2012/10/adding-layers-to-geoserver-using-the-rest-api/ to add a layer a PUT request has to be sent to geoserver at:

http://geoserver.host/geoserver/rest/layers/NEW_LAYER_NAME

With a data content like:

<layer>
  <name>NEW_LAYER_NAME</name>
  <type>VECTOR</type>
  <defaultStyle>
    <name>myStyle</name>
  </defaultStyle>
  <resource class="featureType">
    <name>myFeature</name>
  </resource>
</layer>

Answer 6

Following the previous tips I was able to add a new layer

POST /geoserver/rest/workspaces/{workspace}/datastores/{datastore}/featuretypes
{
  "featureType": {
    "name": "my_layer_name"
  }
}

(my_layer_name is an existing resource on the datastore)

and to update the style

PUT /geoserver/rest/layers/{workspace}:my_layer_name
{
    "layer": {
        "name": "my_layer_name",
        "defaultStyle": {
            "name": "my_style"
        }
    }
}