Added a method to get all the tile collections

src/ogc-api/endpoint.spec.ts

@@ -166,6 +166,12 @@ describe('OgcApiEndpoint', () => {
         ]);
       });
     });
+    describe('#tileCollections', () => {
+      it('returns collection ids', async () => {
+        await expect(endpoint.tileCollections).resolves.toEqual([
+        ]);
+      });
+    });
     describe('#hasTiles', () => {
       it('returns true', async () => {
         await expect(endpoint.hasTiles).resolves.toBe(true);

src/ogc-api/endpoint.ts

@@ -97,7 +97,7 @@ export default class OgcApiEndpoint {
   get recordCollections(): Promise<string[]> {
     return Promise.all([this.data, this.hasRecords])
       .then(([data, hasRecords]) => (hasRecords ? data : { collections: [] }))
-      .then(parseCollections('record'));
+      .then(parseCollections('record', null));
   }
 
   /**
@@ -106,7 +106,16 @@ export default class OgcApiEndpoint {
   get featureCollections(): Promise<string[]> {
     return Promise.all([this.data, this.hasFeatures])
       .then(([data, hasFeatures]) => (hasFeatures ? data : { collections: [] }))
-      .then(parseCollections('feature'));
+      .then(parseCollections('feature', null));
+  }
+
+  /**
+   * A Promise which resolves to an array of tile collection identifiers as strings.
+   */
+  get tileCollections(): Promise<string[]> {
+    return Promise.all([this.data, this.hasTiles])
+      .then(([data, hasTiles]) => (hasTiles ? data : { collections: [] }))
+      .then(parseCollections(null,'vector'));
   }
 
   /**

src/ogc-api/info.ts

@@ -36,12 +36,15 @@ export function parseConformance(doc: OgcApiDocument): ConformanceClass[] {
 }
 
 export function parseCollections(
-  itemType: 'record' | 'feature' | null = null
+  itemType: 'record' | 'feature' | null = null,
+  dataType: 'vector' | null = null
 ): (doc: OgcApiDocument) => string[] {
   return (doc: OgcApiDocument) =>
     (doc.collections as OgcApiCollectionInfo[])
       .filter(
-        (collection) => itemType === null || collection.itemType === itemType
+        (collection) =>
+          (itemType === null || collection.itemType === itemType) &&
+          (dataType === null || collection.dataType === dataType)
       )
       .map((collection) => collection.id as string);
 }

src/ogc-api/model.ts

@@ -31,6 +31,7 @@ export interface OgcApiCollectionInfo {
   description: string;
   id: string;
   itemType: 'feature' | 'record';
+  dataType: 'vector';
   formats: MimeType[];
   crs: CrsCode[];
   storageCrs?: CrsCode;