SLD style not imported in geoserver while publishing it through REST API

Question

I am using REST APIs to publish and change the default style of layers published in GeoServer. When I copy the SLD and paste it directly in the GeoServer styles it works fine. but while using REST API it omits the complete symbology and no style is assigned. imported symbology is as follows

<sld:PolygonSymbolizer>
            <sld:Fill/>
            <sld:Stroke/>
          </sld:PolygonSymbolizer>

following script loads sld from local file and publishes it using REST API:

async function loadSld(urls) {
  try {
    const response = await fetch(urls);
    sld = await response.text();
  } catch (err) {
    console.error(err, 'error loading sld');
  }

  const url = "http://localhost:8080/geoserver/rest/styles";
    await fetch(url, {
      method: "POST",
      headers: {
        "Content-type": "application/vnd.ogc.sld+xml",
        "Access-Control-Allow-Origin": "*",
        "Access-Control-Allow-Methods": "POST, GET, OPTIONS",
        Authorization: "Basic YWRtaW46Z2Vvc2VydmVy",
      },
      body: sld,
    })
      .then((response) => {
        res = response;
        console.log(res, 'response after sld');
        console.log(sld, 'sld');
        if (res.statusText !== "Created") {
         console.log(res, 'response');
        }
      })
      .catch((error) => {
        console.error("Error:", error);
      });
}

the sld is as follows:

<?xml version="1.0" encoding="UTF-8"?>
<StyledLayerDescriptor xmlns="http://www.opengis.net/sld" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.opengis.net/sld http://schemas.opengis.net/sld/1.1.0/StyledLayerDescriptor.xsd" xmlns:ogc="http://www.opengis.net/ogc" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1.0" xmlns:se="http://www.opengis.net/se">
  <NamedLayer>
    <se:Name>Pakistan_with_Kashmir</se:Name>
    <UserStyle>
      <se:Name>Pakistan_with_Kashmir</se:Name>
      <se:FeatureTypeStyle>
        <se:Rule>
          <se:Name>0 - 1.6</se:Name>
          <se:Description>
            <se:Title>0 - 1.6</se:Title>
          </se:Description>
          <ogc:Filter xmlns:ogc="http://www.opengis.net/ogc">
            <ogc:And>
              <ogc:PropertyIsGreaterThanOrEqualTo>
                <ogc:PropertyName>PROVINCE_C</ogc:PropertyName>
                <ogc:Literal>0</ogc:Literal>
              </ogc:PropertyIsGreaterThanOrEqualTo>
              <ogc:PropertyIsLessThanOrEqualTo>
                <ogc:PropertyName>PROVINCE_C</ogc:PropertyName>
                <ogc:Literal>1.60000000000000009</ogc:Literal>
              </ogc:PropertyIsLessThanOrEqualTo>
            </ogc:And>
          </ogc:Filter>
          <se:PolygonSymbolizer>
            <se:Fill>
              <se:SvgParameter name="fill">#ffffff</se:SvgParameter>
            </se:Fill>
            <se:Stroke>
              <se:SvgParameter name="stroke">#232323</se:SvgParameter>
              <se:SvgParameter name="stroke-width">1</se:SvgParameter>
              <se:SvgParameter name="stroke-linejoin">bevel</se:SvgParameter>
            </se:Stroke>
          </se:PolygonSymbolizer>
        </se:Rule>
        <se:Rule>
          <se:Name>1.6 - 3.2</se:Name>
          <se:Description>
            <se:Title>1.6 - 3.2</se:Title>
          </se:Description>
          <ogc:Filter xmlns:ogc="http://www.opengis.net/ogc">
            <ogc:And>
              <ogc:PropertyIsGreaterThan>
                <ogc:PropertyName>PROVINCE_C</ogc:PropertyName>
                <ogc:Literal>1.60000000000000009</ogc:Literal>
              </ogc:PropertyIsGreaterThan>
              <ogc:PropertyIsLessThanOrEqualTo>
                <ogc:PropertyName>PROVINCE_C</ogc:PropertyName>
                <ogc:Literal>3.20000000000000018</ogc:Literal>
              </ogc:PropertyIsLessThanOrEqualTo>
            </ogc:And>
          </ogc:Filter>
          <se:PolygonSymbolizer>
            <se:Fill>
              <se:SvgParameter name="fill">#ffbfbf</se:SvgParameter>
            </se:Fill>
            <se:Stroke>
              <se:SvgParameter name="stroke">#232323</se:SvgParameter>
              <se:SvgParameter name="stroke-width">1</se:SvgParameter>
              <se:SvgParameter name="stroke-linejoin">bevel</se:SvgParameter>
            </se:Stroke>
          </se:PolygonSymbolizer>
        </se:Rule>
        <se:Rule>
          <se:Name>3.2 - 4.8</se:Name>
          <se:Description>
            <se:Title>3.2 - 4.8</se:Title>
          </se:Description>
          <ogc:Filter xmlns:ogc="http://www.opengis.net/ogc">
            <ogc:And>
              <ogc:PropertyIsGreaterThan>
                <ogc:PropertyName>PROVINCE_C</ogc:PropertyName>
                <ogc:Literal>3.20000000000000018</ogc:Literal>
              </ogc:PropertyIsGreaterThan>
              <ogc:PropertyIsLessThanOrEqualTo>
                <ogc:PropertyName>PROVINCE_C</ogc:PropertyName>
                <ogc:Literal>4.79999999999999982</ogc:Literal>
              </ogc:PropertyIsLessThanOrEqualTo>
            </ogc:And>
          </ogc:Filter>
          <se:PolygonSymbolizer>
            <se:Fill>
              <se:SvgParameter name="fill">#ff8080</se:SvgParameter>
            </se:Fill>
            <se:Stroke>
              <se:SvgParameter name="stroke">#232323</se:SvgParameter>
              <se:SvgParameter name="stroke-width">1</se:SvgParameter>
              <se:SvgParameter name="stroke-linejoin">bevel</se:SvgParameter>
            </se:Stroke>
          </se:PolygonSymbolizer>
        </se:Rule>
        <se:Rule>
          <se:Name>4.8 - 6.4</se:Name>
          <se:Description>
            <se:Title>4.8 - 6.4</se:Title>
          </se:Description>
          <ogc:Filter xmlns:ogc="http://www.opengis.net/ogc">
            <ogc:And>
              <ogc:PropertyIsGreaterThan>
                <ogc:PropertyName>PROVINCE_C</ogc:PropertyName>
                <ogc:Literal>4.79999999999999982</ogc:Literal>
              </ogc:PropertyIsGreaterThan>
              <ogc:PropertyIsLessThanOrEqualTo>
                <ogc:PropertyName>PROVINCE_C</ogc:PropertyName>
                <ogc:Literal>6.40000000000000036</ogc:Literal>
              </ogc:PropertyIsLessThanOrEqualTo>
            </ogc:And>
          </ogc:Filter>
          <se:PolygonSymbolizer>
            <se:Fill>
              <se:SvgParameter name="fill">#ff4040</se:SvgParameter>
            </se:Fill>
            <se:Stroke>
              <se:SvgParameter name="stroke">#232323</se:SvgParameter>
              <se:SvgParameter name="stroke-width">1</se:SvgParameter>
              <se:SvgParameter name="stroke-linejoin">bevel</se:SvgParameter>
            </se:Stroke>
          </se:PolygonSymbolizer>
        </se:Rule>
        <se:Rule>
          <se:Name>6.4 - 8</se:Name>
          <se:Description>
            <se:Title>6.4 - 8</se:Title>
          </se:Description>
          <ogc:Filter xmlns:ogc="http://www.opengis.net/ogc">
            <ogc:And>
              <ogc:PropertyIsGreaterThan>
                <ogc:PropertyName>PROVINCE_C</ogc:PropertyName>
                <ogc:Literal>6.40000000000000036</ogc:Literal>
              </ogc:PropertyIsGreaterThan>
              <ogc:PropertyIsLessThanOrEqualTo>
                <ogc:PropertyName>PROVINCE_C</ogc:PropertyName>
                <ogc:Literal>8</ogc:Literal>
              </ogc:PropertyIsLessThanOrEqualTo>
            </ogc:And>
          </ogc:Filter>
          <se:PolygonSymbolizer>
            <se:Fill>
              <se:SvgParameter name="fill">#ff0000</se:SvgParameter>
            </se:Fill>
            <se:Stroke>
              <se:SvgParameter name="stroke">#232323</se:SvgParameter>
              <se:SvgParameter name="stroke-width">1</se:SvgParameter>
              <se:SvgParameter name="stroke-linejoin">bevel</se:SvgParameter>
            </se:Stroke>
          </se:PolygonSymbolizer>
        </se:Rule>
      </se:FeatureTypeStyle>
    </UserStyle>
  </NamedLayer>
</StyledLayerDescriptor>

Answer 1

You are posting a SLD 1.1 to GeoServer, but telling it, via the mime type, it's a SLD 1.0 instead.

Try using the SLD 1.1 mime type instead: application/vnd.ogc.se+xml

Answer 2

I'm using SLD 1.0, you can try this:

Create style name

curl -u admin:pass -X POST 'https://site.com/geoserver/rest/styles' \
    --header 'Content-type: text/xml' \
    --data-raw "<style><name>style_name</name><filename>sld_name.sld</filename></style>"

Upload style code in new style

curl -u admin:pass -X PUT "https://site.com/geoserver/rest/styles/style_name" \
    --header 'Content-type: application/vnd.ogc.sld+xml' \
    --data-binary "@local/path/to/sld_name.sld"

You can use "Authorization Basic" instead of admin:pass

curl -X PUT "https://site.com/geoserver/rest/styles/style_name" \
    --header 'Content-type: application/vnd.ogc.sld+xml' \
    --header 'Authorization: Basic Y***************='
    --data-binary "@local/path/to/sld_name.sld"

If use self-signed certificate for https, use -k option

curl -k -X PUT ****