Change AbstractSentinelHubV3Layer to receive evalscript value from dataProduct endpoint

src/layer/AbstractSentinelHubV3Layer.ts

@@ -28,11 +28,11 @@ import { wmsGetMapUrl } from './wms';
 
 import { Effects } from '../mapDataManipulation/const';
 import { runEffectFunctions } from '../mapDataManipulation/runEffectFunctions';
+import { StatisticsProviderType } from '../statistics/const';
 import { Fis } from '../statistics/Fis';
 import { StatisticalApi } from '../statistics/StatisticalApi';
 import { CACHE_CONFIG_30MIN, CACHE_CONFIG_NOCACHE } from '../utils/cacheHandlers';
-import { fetchLayerParamsFromConfigurationService, getSHServiceRootUrl } from './utils';
-import { StatisticsProviderType } from '../statistics/const';
+import { fetchDataProduct, fetchLayerParamsFromConfigurationService, getSHServiceRootUrl } from './utils';
 
 interface ConstructorParameters {
   instanceId?: string | null;
@@ -127,6 +127,19 @@ export class AbstractSentinelHubV3Layer extends AbstractLayer {
     if (!layerParams) {
       throw new Error('Layer params could not be found');
     }
+
+    if (
+      !layerParams['evalscript'] &&
+      layerParams['dataProduct'] &&
+      !SUPPORTED_DATA_PRODUCTS_PROCESSING.includes(layerParams['dataProduct'])
+    ) {
+      const response = await fetchDataProduct(layerParams['dataProduct'], reqConfig);
+      const evalScript = response?.data?.evalScript;
+      if (evalScript) {
+        layerParams['evalscript'] = evalScript;
+      }
+    }
+
     return layerParams;
   }
 
@@ -236,10 +249,10 @@ export class AbstractSentinelHubV3Layer extends AbstractLayer {
   }
 
   public supportsApiType(api: ApiType): boolean {
-    if (this.dataProduct && !SUPPORTED_DATA_PRODUCTS_PROCESSING.includes(this.dataProduct)) {
-      return api === ApiType.WMS;
+    if (this.dataProduct && SUPPORTED_DATA_PRODUCTS_PROCESSING.includes(this.dataProduct)) {
+      return api === ApiType.PROCESSING;
     }
-    return api === ApiType.WMS || (api === ApiType.PROCESSING && !!this.dataset);
+    return api === ApiType.WMS || (api === ApiType.PROCESSING && !!this.dataset && !!this.evalscript);
   }
 
   protected getWmsGetMapUrlAdditionalParameters(): Record<string, any> {
@@ -679,7 +692,7 @@ export class AbstractSentinelHubV3Layer extends AbstractLayer {
       if (!this.downsampling && layerParams.downsampling) {
         this.downsampling = layerParams.downsampling;
       }
-      // this is a hotfix for `supportsApiType()` not having enough information - should be fixed properly later:
+
       this.dataProduct = layerParams['dataProduct'] ? layerParams['dataProduct'] : null;
     }, reqConfig);
   }

src/layer/utils.ts

@@ -237,6 +237,34 @@ export async function fetchLayerParamsFromConfigurationService(
   return layersParams;
 }
 
+export async function fetchDataProduct(url: string, reqConfig: RequestConfiguration): Promise<any> {
+  const authToken = reqConfig && reqConfig.authToken ? reqConfig.authToken : getAuthToken();
+  if (!authToken) {
+    throw new Error('Must be authenticated to fetch layer params');
+  }
+  const headers = {
+    Authorization: `Bearer ${authToken}`,
+  };
+
+  const requestConfig: AxiosRequestConfig = {
+    responseType: 'json',
+    headers: headers,
+    ...getAxiosReqParams(
+      {
+        ...reqConfig,
+        // Do not override cache if cache is disabled with `expiresIn: 0`
+        cache:
+          reqConfig && reqConfig.cache && reqConfig.cache.expiresIn === 0
+            ? reqConfig.cache
+            : CACHE_CONFIG_30MIN_MEMORY,
+      },
+      null,
+    ),
+  };
+  const res = await axios.get(url, requestConfig);
+  return res;
+}
+
 export function ensureMercatorBBox(bbox: BBox): BBox {
   if (bbox.crs.authId === CRS_EPSG3857.authId) {
     return bbox;