streamable http default (#20)

* streamable http by default, make openai throw error rather than fail

Signed-off-by: Eitan Yarmush <[email protected]>

* allow for strict mode

Signed-off-by: Eitan Yarmush <[email protected]>

---------

Signed-off-by: Eitan Yarmush <[email protected]>

Author: EItanya

mcp/src/index.ts

@@ -24,18 +24,18 @@ const __dirname = path.dirname(__filename);
 const openAIApiKey = process.env.OPENAI_API_KEY;
 const dbDir = process.env.SQLITE_DB_DIR || __dirname; // Default to current dir if not set
 
-if (!openAIApiKey) {
-    console.error("Error: OPENAI_API_KEY environment variable is not set.");
-    process.exit(1);
-}
 if (!fs.existsSync(dbDir)) {
     console.warn(`Warning: SQLITE_DB_DIR (${dbDir}) does not exist. Databases may not be found.`);
     process.exit(1);
 }
 
-const openai = new OpenAI({
-    apiKey: openAIApiKey,
-});
+const strictMode = process.env.STRICT_MODE === 'true';
+if (strictMode) {
+    if (!openAIApiKey) {
+        console.error("Error: OPENAI_API_KEY environment variable is not set.");
+        process.exit(1);
+    }
+}
 
 export interface QueryResult {
     chunk_id: string;
@@ -48,6 +48,9 @@ export interface QueryResult {
 
 async function createEmbeddings(text: string): Promise<number[]> {
     try {
+        const openai = new OpenAI({
+          apiKey: openAIApiKey,
+        });
         console.error("Calling OpenAI embeddings API...");
         const startTime = Date.now();
         const response = await openai.embeddings.create({
@@ -189,7 +192,7 @@ server.tool(
 
 // --- Transport Setup ---
 async function main() {
-    const transport_type = process.env.TRANSPORT_TYPE || 'sse';
+    const transport_type = process.env.TRANSPORT_TYPE || 'http';
 
     if (transport_type === 'stdio') {
         // Stdio transport for direct communication