diff --git a/.github/workflows/python-tests.yml b/.github/workflows/python-tests.yml
index be6fc71..7fdf23f 100644
--- a/.github/workflows/python-tests.yml
+++ b/.github/workflows/python-tests.yml
@@ -8,27 +8,24 @@ on:
 
 jobs:
   build:
-
     runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        python-version: ["3.9", "3.10", "3.11"]
 
     steps:
     - uses: actions/checkout@v3
-    - name: Set up Python ${{ matrix.python-version }}
+    - name: Set up Python 3.11
       uses: actions/setup-python@v3
       with:
-        python-version: ${{ matrix.python-version }}
+        python-version: "3.11"
     - name: Install dependencies
       run: |
+        cd api
         python -m pip install --upgrade pip
         python -m pip install flake8 pytest
         if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
     - name: Lint with flake8
       run: |
+        cd api
         # stop the build if there are Python syntax errors or undefined names
         flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
         # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
-        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
\ No newline at end of file
diff --git a/api/requirements.txt b/api/requirements.txt
index 8140a5f..23e4b01 100644
--- a/api/requirements.txt
+++ b/api/requirements.txt
@@ -1,11 +1,18 @@
-tzdata==2023.3
-wheel==0.37.1
-aiofiles~=0.7.0
-uvicorn>=0.15.0
-python-multipart
-fastapi~=0.87.0
-starlette~=0.21.0
+pytest~=8.2.2
+httpx~=0.27.0
+uvicorn~=0.30.1
+fastapi~=0.111.0
+starlette~=0.37.2
+datastew~=0.3.3
+numpy~=1.25.2
+pandas~=2.1.0
 requests~=2.31.0
-pydantic~=1.10.14
-fastapi_keycloak
-datastew==0.2.0
\ No newline at end of file
+scikit-learn~=1.3.2
+SQLAlchemy~=2.0.31
+openai~=0.28.1
+thefuzz~=0.20.0
+scipy~=1.11.4
+seaborn~=0.13.2
+matplotlib~=3.8.4
+plotly~=5.17.0
+packaging~=24.1
\ No newline at end of file
diff --git a/api/routes.py b/api/routes.py
index 1934c2c..6713d50 100644
--- a/api/routes.py
+++ b/api/routes.py
@@ -1,23 +1,21 @@
 import logging
 import os
 import tempfile
+import time
 
 import uvicorn
+from datastew import DataDictionarySource, BaseRepository
+from datastew.process.ols import OLSTerminologyImportTask
+from datastew.repository import WeaviateRepository
 
 from fastapi import FastAPI, HTTPException, File, UploadFile
+from starlette.background import BackgroundTasks
 from starlette.middleware.cors import CORSMiddleware
 from starlette.responses import RedirectResponse, HTMLResponse
 
-from datastew import DataDictionarySource
 from datastew.repository.model import Terminology, Concept, Mapping
 from datastew.embedding import MPNetAdapter
-from datastew.repository.sqllite import SQLLiteRepository
-from datastew.visualisation import get_html_plot_for_current_database_state
-
-logger = logging.getLogger("uvicorn.info")
-repository = SQLLiteRepository(mode="disk", path="snomed.db")
-embedding_model = MPNetAdapter()
-db_plot_html = None
+from datastew.visualisation import get_plot_for_current_database_state
 
 app = FastAPI(
     title="INDEX",
@@ -50,6 +48,23 @@
     },
 )
 
+
+def connect_to_remote_weaviate_repository():
+    retries = 5
+    for i in range(retries):
+        try:
+            return WeaviateRepository(mode="remote", path="http://weaviate:8080")
+        except Exception as e:
+            logger.info(f"Attempt {i + 1} failed: {e}")
+            time.sleep(5)
+    raise ConnectionError("Could not connect to Weaviate after multiple attempts.")
+
+
+logger = logging.getLogger("uvicorn.info")
+repository = connect_to_remote_weaviate_repository()
+embedding_model = MPNetAdapter()
+db_plot_html = None
+
 origins = ["*"]
 
 app.add_middleware(
@@ -75,14 +90,14 @@ def get_current_version():
 def serve_visualization():
     global db_plot_html
     if not db_plot_html:
-        db_plot_html = get_html_plot_for_current_database_state(repository)
+        db_plot_html = get_plot_for_current_database_state(repository)
     return db_plot_html
 
 
 @app.patch("/visualization", tags=["visualization"])
 def update_visualization():
     global db_plot_html
-    db_plot_html = get_html_plot_for_current_database_state(repository)
+    db_plot_html = get_plot_for_current_database_state(repository)
     return {"message": "DB visualization plot has been updated successfully"}
 
 
@@ -161,16 +176,15 @@ async def create_or_update_mapping(concept_id: str, text: str):
 @app.post("/mappings", tags=["mappings"])
 async def get_closest_mappings_for_text(text: str, limit: int = 5):
     embedding = embedding_model.get_embedding(text).tolist()
-    print(embedding)
-    closest_mappings, similarities = repository.get_closest_mappings(embedding, limit)
+    closest_mappings = repository.get_closest_mappings_with_similarities(embedding, limit)
     mappings = []
-    for mapping, similarity in zip(closest_mappings, similarities):
+    for mapping, similarity in closest_mappings:
         concept = mapping.concept
         terminology = concept.terminology
         mappings.append({
             "concept": {
-                "id": concept.id,
-                "name": concept.name,
+                "id": concept.concept_identifier,
+                "name": concept.pref_label,
                 "terminology": {
                     "id": terminology.id,
                     "name": terminology.name
@@ -179,12 +193,14 @@ async def get_closest_mappings_for_text(text: str, limit: int = 5):
             "text": mapping.text,
             "similarity": similarity
         })
+
     return mappings
 
 
 # Endpoint to get mappings for a data dictionary source
 @app.post("/mappings/dict", tags=["mappings"], description="Get mappings for a data dictionary source.")
-async def get_closest_mappings_for_dictionary(file: UploadFile = File(...), variable_field: str = 'variable', description_field: str = 'description'):
+async def get_closest_mappings_for_dictionary(file: UploadFile = File(...), variable_field: str = 'variable',
+                                              description_field: str = 'description'):
     try:
         # Determine file extension and create a temporary file with the correct extension
         _, file_extension = os.path.splitext(file.filename)
@@ -193,7 +209,8 @@ async def get_closest_mappings_for_dictionary(file: UploadFile = File(...), vari
             tmp_file_path = tmp_file.name
 
         # Initialize DataDictionarySource with the temporary file path
-        data_dict_source = DataDictionarySource(file_path=tmp_file_path, variable_field=variable_field, description_field=description_field)
+        data_dict_source = DataDictionarySource(file_path=tmp_file_path, variable_field=variable_field,
+                                                description_field=description_field)
         df = data_dict_source.to_dataframe()
 
         response = []
@@ -208,7 +225,7 @@ async def get_closest_mappings_for_dictionary(file: UploadFile = File(...), vari
                 terminology = concept.terminology
                 mappings_list.append({
                     "concept": {
-                        "id": concept.id,
+                        "id": concept.concept_id,
                         "name": concept.name,
                         "terminology": {
                             "id": terminology.id,
@@ -231,5 +248,17 @@ async def get_closest_mappings_for_dictionary(file: UploadFile = File(...), vari
     except Exception as e:
         raise HTTPException(status_code=500, detail=str(e))
 
+
+def import_snomed_ct_task():
+    task = OLSTerminologyImportTask(repository, embedding_model, "SNOMED CT", "snomed")
+    task.process()
+
+
+@app.put("/import/terminology/snomed", description="Import whole SNOMED CT from OLS.", tags=["import", "tasks"])
+async def import_snomed_ct(background_tasks: BackgroundTasks):
+    background_tasks.add_task(import_snomed_ct_task)
+    return {"message": "SNOMED CT import started in the background"}
+
+
 if __name__ == "__main__":
     uvicorn.run(app, host="0.0.0.0", port=5000)
diff --git a/docker-compose.local.yaml b/docker-compose.local.yaml
index 09d1ff2..9b442b1 100644
--- a/docker-compose.local.yaml
+++ b/docker-compose.local.yaml
@@ -1,7 +1,6 @@
 version: "3.12"
 
 services:
-
   frontend:
     image: index-client
     build:
@@ -18,4 +17,18 @@ services:
       context: ./api
       dockerfile: Dockerfile
     ports:
-      - "5000:80"
\ No newline at end of file
+      - "5000:80"
+    depends_on:
+      - weaviate
+
+  weaviate:
+    image: cr.weaviate.io/semitechnologies/weaviate:1.24.20
+    ports:
+      - "8080:8080"
+    volumes:
+      - weaviate_data:/var/lib/weaviate
+
+volumes:
+
+  weaviate_data:
+    driver: local
\ No newline at end of file