fix categories /brands filter

README.md

@@ -50,6 +50,15 @@ Test the API by curl on `http://localhost:8080/places/countries` with the DEMO-A
 curl -H "x-api-key: DEMO-API-KEY" -X GET -G 'http://localhost:8080/places/brands' -d 'country=AU'
 ```
 
+```bash
+curl -H "x-api-key: DEMO-API-KEY" -X GET -G 'http://localhost:8080/places/brands' -d 'country=AU' -d 'category=adult_store'
+```
+
 ```bash
 curl -H "x-api-key: DEMO-API-KEY" -X GET -G 'http://localhost:8080/places' -d 'country=AU'  -d 'brand_name=TAB' -d 'limit=2' -d 'format=geojson'
 ```
+
+```bash
+curl -H "x-api-key: DEMO-API-KEY" -X GET -G 'http://localhost:8080/places/categories' -d 'country=AU'
+curl -H "x-api-key: DEMO-API-KEY" -X GET -G 'http://localhost:8080/places/brands' -d 'country=AU' -d 'categories=adult_store,airlines,airline'
+```

package.json

@@ -1,6 +1,6 @@
 {
   "name": "overture-maps-api",
-  "version": "0.0.3",
+  "version": "0.0.4",
   "description": "",
   "author": "",
   "private": true,

src/bigquery/bigquery.service.ts

@@ -123,7 +123,7 @@ export class BigQueryService {
     }
     query += ` AND brand IS NOT NULL`;
     if(categories && categories.length > 0){
-      query += ` AND category.primary IN UNNEST(["${categories.join('","')}"])`;
+      query += ` AND categories.primary IN UNNEST(["${categories.join('","')}"])`;
     }
     if (require_wikidata) {
       query += ` AND brand.wikidata IS NOT NULL`;

src/places/dto/get-brands.dto.ts

@@ -25,7 +25,7 @@ export class GetBrandsDto {
 
   //transform into an array of strings
   @IsOptional()
-  @Transform(({ value }) => value.split(','))
+  @Transform(({ value }) => String(value).split(','))
   @IsString({ each: true })
   categories?: string[]; // Array of category names
 }