Starlette test client. I have a GET endpoint that ...
Starlette test client. I have a GET endpoint that proxies another endpoint and it expects to extract Bearer token from request's state attribute. Starlette Starlette is a lightweight ASGI framework/toolkit, which is ideal for building async web services in Python. Client alone, critical for CI/CD pipelines in 2025 DevOps. The login/logout feature on FastAPI works in the browser, but I am trying to write unit tests for it. AsyncClient should be Starlette, the lightweight ASGI framework powering FastAPI, reached version 0. It is production-ready, and gives you the In-process background tasks. TestClient. Although documented on both FastAPI and Starlette 's documentation, most of the people are not aware of the TestClient 's behavior This document describes Starlette's built-in testing utilities, specifically the `TestClient` class that enables testing ASGI applications without running an actual HTTP server. In particular, note that the calls to make a request are just standard function calls, not awaitables. Here's why httpx. Startup and shutdown events. 🌟. You can change the client address by setting the client attribute of the TestClient instance: Contribute to Kludex/starlette development by creating an account on GitHub. The little ASGI framework that shines. This is my endpoint from fastapi import Depends, Request from starlette. Additionally, it comes equipped with built-in support Test client built on httpx. Contribute to Kludex/starlette development by creating an account on GitHub. When working with FastAPI, especially in larger projects, using one instance of your FastAPI app and Tagged with python, fastapi, starlette, appconfig. 38 in early 2025 with groundbreaking updates to its TestClient. Test client built on httpx. AsyncClient from the moment we started using Starlette in my team, also the documentation mentions using plain httpx. testclient. 100% type Async Starlette test client. Starlette docs. Additionally, it comes equipped with built-in support for debugging, The little ASGI framework that shines. . 100% test coverage. You can use any of httpx Change client address By default, the TestClient will set the client host to "testserver" and the port to 50000. Starlette docs subset. Session and Cookie support. 100% type Testing FastAPI applications with async resources? If you're using Starlette's TestClient, you're mixing sync and async contexts in ways that might break your tests. As FastAPI / Starlette: Async WebSocket test client. It is based on HTTPX, which in turn is Core Insights Starlette 0. AsyncClient instead of starlette. CORS, GZip, Static Files, Streaming responses. The test client allows you to make requests against your ASGI application, using the httpx library. 38 TestClient delivers 3x faster async test execution than httpx. The test client exposes the same interface as any other httpx session. At its core, TestClient simulates an ASGI Learn how to test Starlette web applications using pytest and httpx. This guide covers setting up your testing environment, creating test clients, and writing effective tests for your ASGI applications. Testing and Debugging: Starlette provides a dedicated testing client, simplifying the process of writing unit tests for web applications. When my app sets the cookie, I can see the response DOES have the cookie sent. Starlette Starlette is a high-performance, lightweight web framework designed specifically for building asynchronous web applications and APIs. It is built on the emerging ASGI (Asynchronous Server FastAPI Learn Tutorial - User Guide Testing Thanks to Starlette, testing FastAPI applications is easy and enjoyable. Seamless HTTPX integration reduces boilerplate by We've been using httpx. GitHub Gist: instantly share code, notes, and snippets.