Added `prefix` parameter to `GET /names/search`.

src/main/java/org/qortal/api/resource/NamesResource.java

@@ -173,6 +173,7 @@ public class NamesResource {
 	)
 	@ApiErrors({ApiError.NAME_UNKNOWN, ApiError.REPOSITORY_ISSUE})
 	public List<NameData> searchNames(@QueryParam("query") String query,
+									  @Parameter(description = "Prefix only (if true, only the beginning of the name is matched)") @QueryParam("prefix") Boolean prefixOnly,
 									  @Parameter(ref = "limit") @QueryParam("limit") Integer limit,
 									  @Parameter(ref = "offset") @QueryParam("offset") Integer offset,
 									  @Parameter(ref="reverse") @QueryParam("reverse") Boolean reverse) {
@@ -181,7 +182,9 @@ public class NamesResource {
 				throw ApiExceptionFactory.INSTANCE.createCustomException(request, ApiError.INVALID_CRITERIA, "Missing query");
 			}
 
-			return repository.getNameRepository().searchNames(query, limit, offset, reverse);
+			boolean usePrefixOnly = Boolean.TRUE.equals(prefixOnly);
+
+			return repository.getNameRepository().searchNames(query, usePrefixOnly, limit, offset, reverse);
 		} catch (ApiException e) {
 			throw e;
 		} catch (DataException e) {

src/main/java/org/qortal/repository/NameRepository.java

@@ -14,7 +14,7 @@ public interface NameRepository {
 
 	public boolean reducedNameExists(String reducedName) throws DataException;
 
-	public List<NameData> searchNames(String query, Integer limit, Integer offset, Boolean reverse) throws DataException;
+	public List<NameData> searchNames(String query, boolean prefixOnly, Integer limit, Integer offset, Boolean reverse) throws DataException;
 
 	public List<NameData> getAllNames(Integer limit, Integer offset, Boolean reverse) throws DataException;
 

src/main/java/org/qortal/repository/hsqldb/HSQLDBNameRepository.java

@@ -103,7 +103,7 @@ public class HSQLDBNameRepository implements NameRepository {
 		}
 	}
 
-	public List<NameData> searchNames(String query, Integer limit, Integer offset, Boolean reverse) throws DataException {
+	public List<NameData> searchNames(String query, boolean prefixOnly, Integer limit, Integer offset, Boolean reverse) throws DataException {
 		StringBuilder sql = new StringBuilder(512);
 		List<Object> bindParams = new ArrayList<>();
 
@@ -111,7 +111,10 @@ public class HSQLDBNameRepository implements NameRepository {
 				+ "is_for_sale, sale_price, reference, creation_group_id FROM Names "
 				+ "WHERE LCASE(name) LIKE ? ORDER BY name");
 
-		bindParams.add(String.format("%%%s%%", query.toLowerCase()));
+		// Search anywhere in the name, unless "prefixOnly" has been requested
+		// Note that without prefixOnly it will bypass any indexes
+		String queryWildcard = prefixOnly ? String.format("%s%%", query.toLowerCase()) : String.format("%%%s%%", query.toLowerCase());
+		bindParams.add(queryWildcard);
 
 		if (reverse != null && reverse)
 			sql.append(" DESC");