diff --git a/.github/workflows/integration-test.yml b/.github/workflows/integration-test.yml
new file mode 100644
index 0000000..8c0fd54
--- /dev/null
+++ b/.github/workflows/integration-test.yml
@@ -0,0 +1,23 @@
+name: Integration Tests
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  tests:
+    strategy:
+      matrix:
+        dbtype: ["postgres"]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - uses: isbang/compose-action@v1.4.1
+        with:
+          compose-file: "./tests_integration/docker-compose-${{ matrix.dbtype }}.yml"
+          up-flags: "--build --abort-on-container-exit"
+          down-flags: "--volumes"
diff --git a/pyproject.toml b/pyproject.toml
index df799d1..667b672 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -20,6 +20,9 @@ ignore = ["A003", "D101", "D104", "D406", "D407", "S104", "TRY201", "TRY003", "E
 line-length = 120
 target-version = "py39"
 
+[tool.ruff.per-file-ignores]
+"tests*/*" = ["ANN201", "S101"]
+
 [tool.black]
 line-length = 120
 target-version = ['py39']
diff --git a/tests_integration/Dockerfile b/tests_integration/Dockerfile
new file mode 100644
index 0000000..7939d3e
--- /dev/null
+++ b/tests_integration/Dockerfile
@@ -0,0 +1,9 @@
+FROM python:3.11-alpine
+
+COPY requirements.txt /tester/
+
+WORKDIR /tester
+
+RUN pip install -r requirements.txt
+
+ENTRYPOINT [ "pytest", "tests" ]
diff --git a/tests_integration/docker-compose-postgres.yml b/tests_integration/docker-compose-postgres.yml
new file mode 100644
index 0000000..03823c3
--- /dev/null
+++ b/tests_integration/docker-compose-postgres.yml
@@ -0,0 +1,24 @@
+version: '3.8'
+services:
+  db:
+    image: postgres:11-alpine
+    environment:
+      - POSTGRES_PASSWORD=abc
+  spoolman:
+    build: ./../
+    environment:
+      - SPOOLMAN_DB_TYPE=postgres
+      - SPOOLMAN_DB_HOST=db
+      - SPOOLMAN_DB_PORT=5432
+      - SPOOLMAN_DB_NAME=postgres
+      - SPOOLMAN_DB_USERNAME=postgres
+      - SPOOLMAN_DB_PASSWORD=abc
+      - SPOOLMAN_LOGGING_LEVEL=DEBUG
+    depends_on:
+      - db
+  tester:
+    build: .
+    volumes:
+      - ./tests:/tester/tests
+    depends_on:
+      - spoolman
diff --git a/tests_integration/requirements.txt b/tests_integration/requirements.txt
new file mode 100644
index 0000000..491a32a
--- /dev/null
+++ b/tests_integration/requirements.txt
@@ -0,0 +1,3 @@
+pytest==7.3.1
+pytest-asyncio==0.21.0
+httpx==0.24.0
diff --git a/tests_integration/tests/__init__.py b/tests_integration/tests/__init__.py
new file mode 100644
index 0000000..81a11d3
--- /dev/null
+++ b/tests_integration/tests/__init__.py
@@ -0,0 +1 @@
+"""Tests for the integration of the application."""
diff --git a/tests_integration/tests/conftest.py b/tests_integration/tests/conftest.py
new file mode 100644
index 0000000..f076b27
--- /dev/null
+++ b/tests_integration/tests/conftest.py
@@ -0,0 +1,23 @@
+"""Test fixtures for integration tests."""
+
+import time
+
+import httpx
+import pytest
+
+TIMEOUT = 10
+
+
+@pytest.fixture(scope="session", autouse=True)
+def _wait_for_server():  # noqa: ANN202
+    """Wait for the server to start up."""
+    start_time = time.time()
+    while True:
+        try:
+            response = httpx.get("http://spoolman:8000")
+            response.raise_for_status()
+        except httpx.HTTPError:
+            if time.time() - start_time > TIMEOUT:
+                raise
+        else:
+            break
diff --git a/tests_integration/tests/test_api.py b/tests_integration/tests/test_api.py
new file mode 100644
index 0000000..c07538c
--- /dev/null
+++ b/tests_integration/tests/test_api.py
@@ -0,0 +1,47 @@
+"""Integration tests for the API."""
+
+import httpx
+
+URL = "http://spoolman:8000"
+
+
+def test_add_vendor():
+    """Test adding a vendor to the database."""
+    name = "John"
+    comment = "abcdefghåäö"
+    result = httpx.post(
+        f"{URL}/api/v1/vendor",
+        json={"name": name, "comment": comment},
+    )
+    result.raise_for_status()
+
+    vendor = result.json()
+    assert vendor["name"] == name
+    assert vendor["comment"] == comment
+    assert vendor["id"] is not None
+    assert vendor["registered"] is not None
+
+
+def test_get_vendor():
+    """Test getting a vendor from the database."""
+    name = "John"
+    comment = "abcdefghåäö"
+    result = httpx.post(
+        f"{URL}/api/v1/vendor",
+        json={"name": name, "comment": comment},
+    )
+    result.raise_for_status()
+
+    added_vendor = result.json()
+
+    result = httpx.get(
+        f"{URL}/api/v1/vendor/{added_vendor['id']}",
+    )
+    result.raise_for_status()
+
+    vendor = result.json()
+
+    assert vendor["name"] == name
+    assert vendor["comment"] == comment
+    assert vendor["id"] == added_vendor["id"]
+    assert vendor["registered"] == added_vendor["registered"]