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README.md

@@ -19,8 +19,17 @@ bun install chdb-bun
 
 #### Usage
 ```js
-import { Execute } from 'chdb-bun';
-console.log(Execute("SELECT version()", "CSV"));
-// "23.10.1.1"
-```
+import { db, chdb } from 'chdb-bun';
+
+const conn = new db('CSV')
+var result;
 
+// Test query
+result = conn.query("SELECT version()");
+console.log(result)
+
+// Test session
+conn.session("CREATE FUNCTION IF NOT EXISTS hello AS () -> 'chDB'");
+result = conn.session("SELECT hello()", "CSV");
+console.log(result)
+```

example.js

@@ -1,4 +1,13 @@
-import { Execute } from '.';
+import { db, chdb } from '.';
 
+const conn = new db('CSV', '/tmp')
+var result;
 
-console.log(Execute("SELECT version()", "CSV"));
+// Test query
+result = conn.query("SELECT version()");
+console.log(result)
+
+// Test session
+conn.session("CREATE FUNCTION IF NOT EXISTS hello AS () -> 'chDB'");
+result = conn.session("SELECT hello()", "CSV");
+console.log(result)

index.js

@@ -1,16 +1,35 @@
 
 import { dlopen, FFIType, suffix, CString, ptr } from "bun:ffi";
+
 const path = `lib/libchdb_bun.${suffix}`;
+
 const { symbols: chdb, } = dlopen(path, {
     Execute: {
       args: [FFIType.cstring, FFIType.cstring],
       returns:FFIType.cstring,
     },
+    ExecuteSession: {
+      args: [FFIType.cstring, FFIType.cstring, FFIType.cstring],
+      returns:FFIType.cstring,
+    },
   },
 );
 
-export function Execute(query, format){
-  if (!format) format = "CSV";
-  if (!query) return "";
-  return chdb.Execute(Buffer.from(query+"\0"), Buffer.from(format+"\0"));
+function db(format, path) {
+  this.format = format || 'JSONCompact';
+  this.path = path || '.';
+  this.query = function(query, format){
+  	if (!query) return "";
+  	if (!format) format = "CSV";
+  	return chdb.Execute(Buffer.from(query+"\0"), Buffer.from(format+"\0"));
+  }.bind(this);
+  this.session = function(query, format, path) {
+  	if (!query) return "";
+  	if (!format) format = "CSV";
+  	if (!path) path = "/tmp";
+  	return chdb.ExecuteSession(Buffer.from(query+"\0"), Buffer.from(format+"\0"), Buffer.from(path+"\0"));
+  }.bind(this);
+  return this;
 }
+
+export { chdb, db };

lib/libchdb_bun.c

@@ -27,5 +27,45 @@ char *Execute(char *query, char *format) {
     free(argv[2]);
     free(argv[3]);
 
-    return result->buf;
+    if (result == NULL) {
+      return NULL;
+    } else {
+      return result->buf;
+    }
+}
+
+char *ExecuteSession(char *query, char *format, char *path) {
+    char *argv[] = {(char *)"clickhouse", (char *)"--multiquery", (char *)"--output-format=CSV", (char *)"--query=", (char *)"--path=."};
+    char dataFormat[100];
+    char dataPath[100];
+    char *localQuery;
+    int argc = 5;
+    struct local_result *result;
+
+    snprintf(dataFormat, sizeof(dataFormat), "--format=%s", format);
+    argv[2] = strdup(dataFormat);
+
+    snprintf(dataPath, sizeof(dataPath), "--path=%s", path);
+    argv[4] = strdup(dataPath);
+
+    localQuery = (char *) malloc(strlen(query) + 10);
+    if (localQuery == NULL) {
+        return NULL;
+    }
+
+    sprintf(localQuery, "--query=%s", query);
+    argv[3] = strdup(localQuery);
+    free(localQuery);
+
+    result = query_stable(argc, argv);
+
+    free(argv[2]);
+    free(argv[3]);
+    free(argv[4]);
+
+    if (result == NULL) {
+      return NULL;
+    } else {
+      return result->buf;
+    }
 }

lib/libchdb_bun.h

@@ -2,5 +2,6 @@
 #define LIBCHDB_BUN_H
 
 char *Execute(char *query, char *format);
+char *ExecuteSession(char *query, char *format, char *path);
 
 #endif

package.json

@@ -1,11 +1,17 @@
 {
   "name": "chdb-bun",
+  "version": "1.0.4",
   "module": "index.js",
   "type": "module",
+  "author": "Lorenzo Mangani <lorenzo.mangani@gmail.com>",
+  "license": "Apache2.0",
   "scripts": {
     "build": "cd lib && gcc -shared -fPIC -o libchdb_bun.so libchdb_bun.c -lchdb"
   },
   "devDependencies": {
     "bun-types": "^0.5.0"
+  },
+  "directories":{
+     "lib": "lib"
   }
 }