Extend granule items with CMR extension

This adds native CMR data to the items to assist with getting back to the original data within CMR.
nasa · Oct 10, 2024 · 4ebbd83 · 4ebbd83
1 parent 4d7bd23
commit 4ebbd83
Show file tree

Hide file tree

Showing 2 changed files with 33 additions and 3 deletions.
diff --git a/src/domains/__tests__/items.spec.ts b/src/domains/__tests__/items.spec.ts
@@ -22,7 +22,9 @@ describe("granuleToStac", () => {
         type: "Feature",
         id: baseGranule.title,
         stac_version: "1.0.0",
-        stac_extensions: [],
+        stac_extensions: [
+          "https://stac-extensions.github.io/cmr/v0.0.0/schema.json"
+        ],
         geometry: {
           type: "Polygon",
           coordinates: [
@@ -37,6 +39,9 @@ describe("granuleToStac", () => {
         },
         bbox: [-26.1081458, 29.8680955, -11.4859874, 40.0118589],
         properties: {
+          "cmr:collection_id": "C123456789-TEST_PROV",
+          "cmr:concept_id": "G000000000-TEST_PROV",
+          "cmr:provider": "TEST_PROV",
           datetime: "2009-09-14T00:00:00.000Z",
           start_datetime: "2009-09-14T00:00:00.000Z",
           end_datetime: "2010-09-14T00:00:00.000Z",
@@ -110,7 +115,9 @@ describe("granuleToStac", () => {
         type: "Feature",
         id: baseGranule.title,
         stac_version: "1.0.0",
-        stac_extensions: [],
+        stac_extensions: [
+          "https://stac-extensions.github.io/cmr/v0.0.0/schema.json"
+        ],
         geometry: {
           type: "Polygon",
           coordinates: [
@@ -125,6 +132,9 @@ describe("granuleToStac", () => {
         },
         bbox: [-180, -60, 170, 50],
         properties: {
+          "cmr:collection_id": "C123456789-TEST_PROV",
+          "cmr:concept_id": "G000000000-TEST_PROV",
+          "cmr:provider": "TEST_PROV",
           datetime: "2009-09-14T00:00:00.000Z",
           start_datetime: "2009-09-14T00:00:00.000Z",
           end_datetime: "2010-09-14T00:00:00.000Z",
@@ -197,7 +207,9 @@ describe("granuleToStac", () => {
         type: "Feature",
         id: baseGranule.title,
         stac_version: "1.0.0",
-        stac_extensions: [],
+        stac_extensions: [
+          "https://stac-extensions.github.io/cmr/v0.0.0/schema.json"
+        ],
         geometry: {
           type: "LineString",
           coordinates: [
@@ -208,6 +220,9 @@ describe("granuleToStac", () => {
         },
         bbox: [-42.915595, 60.477742, 11.618598, 65.941741],
         properties: {
+          "cmr:collection_id": "C123456789-TEST_PROV",
+          "cmr:concept_id": "G000000000-TEST_PROV",
+          "cmr:provider": "TEST_PROV",
           datetime: "2009-09-14T00:00:00.000Z",
           start_datetime: "2009-09-14T00:00:00.000Z",
           end_datetime: "2010-09-14T00:00:00.000Z",

diff --git a/src/domains/items.ts b/src/domains/items.ts
@@ -71,6 +71,20 @@ const cloudCoverExtension = (granule: Granule) => {
   };
 };
 
+/**
+ * Return the CMR extension schema and properties for a granule.
+ */
+const cmrGranuleExtension = (granule: Granule) => {
+  return {
+    extension: "https://stac-extensions.github.io/cmr/v0.0.0/schema.json",
+    properties: {
+      "cmr:provider": granule.collection?.conceptId.split("-")[1],
+      "cmr:collection_id": granule.collection?.conceptId,
+      "cmr:concept_id": granule.conceptId
+    },
+  };
+};
+
 /**
  * Returns the self-links for a STACItem.
  *
@@ -166,6 +180,7 @@ export const granuleToStac = (granule: Granule): STACItem => {
 
   const { extensions, properties: extensionProperties } = deriveExtensions(granule, [
     cloudCoverExtension,
+    cmrGranuleExtension
   ]);
 
   const properties: { [key: string]: string } = mergeMaybe(