Fixes #4169: $path configuration parameter adds terminating slash (#4191)

Author: vga91

extended/src/main/java/apoc/ml/OpenAIRequestHandler.java

@@ -40,7 +40,8 @@ public String getEndpoint(Map<String, Object> procConfig, ApocConfig apocConfig)
     public String getFullUrl(String method, Map<String, Object> procConfig, ApocConfig apocConfig) {
         return Stream.of(getEndpoint(procConfig, apocConfig), method, getApiVersion(procConfig, apocConfig))
                 .filter(StringUtils::isNotBlank)
-                .collect(Collectors.joining("/"));
+                .collect(Collectors.joining("/"))
+                .replaceAll("/\\?", "?"); // Remove terminating endpoint
     }
 
     enum Type {

extended/src/test/java/apoc/ml/OpenAIAzureIT.java

@@ -12,6 +12,7 @@
 import java.util.stream.Stream;
 
 import static apoc.ml.OpenAI.API_TYPE_CONF_KEY;
+import static apoc.ml.OpenAI.PATH_CONF_KEY;
 import static apoc.ml.MLUtil.*;
 import static apoc.ml.OpenAITestResultUtils.CHAT_COMPLETION_QUERY;
 import static apoc.ml.OpenAITestResultUtils.COMPLETION_QUERY;
@@ -63,6 +64,19 @@ public void embedding() {
                 OpenAITestResultUtils::assertEmbeddings);
     }
 
+    @Test
+    public void embeddingFixPath() {
+        Map<String, Object> params = Map.of("apiKey", OPENAI_KEY,
+                "conf", Map.of(ENDPOINT_CONF_KEY, OPENAI_EMBEDDING_URL,
+                        API_TYPE_CONF_KEY, OpenAIRequestHandler.Type.AZURE.name(),
+                        API_VERSION_CONF_KEY, OPENAI_AZURE_API_VERSION,
+                        PATH_CONF_KEY, "openai/deployments/text-embedding-ada-002/embeddings"
+                ));
+        testCall(db, EMBEDDING_QUERY,
+                params,
+                OpenAITestResultUtils::assertEmbeddings);
+    }
+
 
     @Test
     @Ignore("It returns wrong answers sometimes")