diff --git a/tokenizer/src/tokenizer.rs b/tokenizer/src/tokenizer.rs
index 75e3f13..d711545 100644
--- a/tokenizer/src/tokenizer.rs
+++ b/tokenizer/src/tokenizer.rs
@@ -3,6 +3,9 @@ use mongodb::bson::{doc, Document};
 use openai_rust::Client;
 use std::error::Error;
 use std::env;
+use tokio::task;
+use tokio::sync::mpsc;
+use regex::Regex;
 
 
 pub struct Tokenizer {
@@ -21,30 +24,95 @@ impl Tokenizer {
         }
     }
 
-    pub async fn tokenize_collection(&self, collection: &str) -> std::io::Result<>{
+    pub async fn tokenize_collection(&self, collection: &str) -> std::io::Result<()> {
         let result: Vec<Document> = self.mongo_client.get_all_documents(self.collection);
-        let col: mongodb::Collection<Document>= self.mongo_model.client.as_ref()
-                                                                       .unwrap()
-                                                                       .database(&self.mongo_model.db_name)
-                                                                       .collection(collection);
-
-        while let Some(result) = cursor.next().await {
+        let col: mongodb::Collection<Document> = self.mongo_model.client.as_ref()
+            .unwrap()
+            .database(&self.mongo_model.db_name)
+            .collection(collection);
+    
+        let (tx, rx) = mpsc::channel::<Result<Document, String>>(32);
+    
+        for document in result {
+            let tx = tx.clone();
+            let col_clone: mongodb::Collection<Document> = col.clone();
+            
+            task::spawn(async move {
+                if let Some(text) = document.get_str("text") {
+                    let tokens = tokenize_file(text).await;
+                    
+                    let update_doc: Document = doc! {
+                        "$set": { "tokens": tokens }
+                    };
+    
+                    if let Err(e) = col_clone.update_one(document.clone(), update_doc, None).await {
+                        tx.send(Err(format!("Error updating document: {}", e))).await.unwrap();
+                    } else {
+                        tx.send(Ok(document)).await.unwrap();
+                    }
+                }
+            });
+        }
+    
+        drop(tx);
+    
+        while let Some(result) = rx.recv().await {
             match result {
                 Ok(document) => {
-                    if let Some(text) = document.get_str("text") {
-                        let args: openai_rust::embeddings::EmbeddingsArguments = openai_rust::embeddings::EmbeddingsArguments::new("text-embedding-ada-002", text.to_owned());
-                        let embedding: Vec<openai_rust::embeddings::EmbeddingsData> = self.oai_client.create_embeddings(args).await.unwrap().data;
-                        
-                        let update_doc: Document = doc! {
-                            "$set": { "embedding": embedding }
-                        };
-
-                        col.update_one(document, update_doc, None).await?;
-                    }
+                    print!("Processesed document successfully")
                 }
-                Error(e) => eprintln!("Error processing document: {}", e),
+                Err(e) => eprintln!("Error processing document: {}", e),
             }
         }
+    
         Ok(())
     }
+
+    async fn tokenize_file(input: &str) -> Vec<Token> {
+        let number_regex = Regex::new(r"\b\d+\b").unwrap();
+        let identifier_regex = Regex::new(r"\b[a-zA-Z_][a-zA-Z0-9_]*\b").unwrap();
+        let operator_regex = Regex::new(r"[\+\-\*/]").unwrap();
+    
+        let mut tokens: Vec<Token> = Vec::new();
+    
+        for mat in number_regex.find_iter(input) {
+            let token: Token = Token {
+                token_type: TokenType::Number,
+                value: mat.as_str().to_owned(),
+            };
+            tokens.push(token);
+        }
+    
+        for mat in identifier_regex.find_iter(input) {
+            let token = Token {
+                token_type: TokenType::Identifier,
+                value: mat.as_str().to_owned(),
+            };
+            tokens.push(token);
+        }
+    
+        for mat in operator_regex.find_iter(input) {
+            let token = Token {
+                token_type: TokenType::Operator,
+                value: mat.as_str().to_owned(),
+            };
+            tokens.push(token);
+        }
+    
+        tokens
+    }
+}
+
+#[derive(Debug)]
+enum TokenType {
+    Number,
+    Identifier,
+    Operator,
+    // Add more token types as needed
+}
+
+#[derive(Debug)]
+struct Token {
+    token_type: TokenType,
+    value: String,
 }