【Amis Low Code 结合FastAPI进行前端框架开发】

本文主要是介绍【Amis Low Code 结合FastAPI进行前端框架开发】，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

官方文档

封装思想

直接复制官网json数据即可开发
每个json中的接口由fastapi 转发（透传）使其开发模式与前端思维一致

基础组件

from amis import Page, Service, App
from pydantic import BaseModel, Field
from fastapi import FastAPI, Request, Response, APIRouter
from starlette.responses import HTMLResponseclass JsonRegister(BaseModel):page_json_url: str = "/demo.json"def __init__(self, **kwargs):super(JsonRegister, self).__init__(**kwargs)def register(self, router: APIRouter):router.add_api_route(self.page_json_url, endpoint=self.json)def json(self) -> {}:"""amis json格式数据"""return {}class HtmlRegister(BaseModel):page_url = "/"def __init__(self, **kwargs):super(HtmlRegister, self).__init__(**kwargs)def register(self, router: APIRouter):router.add_api_route(self.page_url, endpoint=self.html)def html(self):"""渲染html页面"""return HTMLResponse(content=Page().render())class TableRegister(JsonRegister):base_url = "/crud/"primary_key = "id"page_json_url = "/curd/model.json"primary_key_url = ""def __init__(self, **kwargs):super(TableRegister, self).__init__(**kwargs)def register(self, router: APIRouter):super(TableRegister, self).register(router=router)self.primary_key_url = self.base_url + "{" + self.primary_key + "}"router.add_api_route(self.primary_key_url, endpoint=self.get_item, methods=["GET"])router.add_api_route(self.primary_key_url, endpoint=self.delete_item, methods=["DELETE"])router.add_api_route(self.primary_key_url, endpoint=self.put_item, methods=["PUT"])router.add_api_route(self.primary_key_url, endpoint=self.options_item, methods=["OPTIONS"])router.add_api_route(self.base_url, endpoint=self.get_items, methods=["GET"])router.add_api_route(self.base_url, endpoint=self.post_item, methods=["POST"])def get_item(self, request: Request):return {}def delete_item(self, request: Request):return {}def put_item(self, request: Request):return {}def options_item(self, request: Request):return {}def get_items(self, request: Request):return []def post_item(self, request: Request):return {}

上诉组件中定义
json格式注册器
html页面注册器
表格增删改查注册器

常见业务功能组件封装

class RouterJson(JsonRegister):page_json_url = "/router.json"children_pages = [{"label": "父页面","url": "/parent","redirect": "/parent/pageA","children": [{"label": "子页面","url": "pageA","schemaApi": "get:/pages/crud-list.json"},{"label": "子页面","url": "pageB","schemaApi": "get:/pages/crud-list.json"}]}]def json(self) -> {}:return {"status": 0,"msg": "","data": {"pages": {"children": self.children_pages}}}class AppAdminHtml(HtmlRegister):web_url: str = "/""""获取静态页面地址"""app_brandName = "测试Demo"router_json: RouterJson = RouterJson()def html(self):app_ = App()app_.brandName = "测试Demo"app_.api = f"get:{self.router_json.page_json_url}"return HTMLResponse(app_.render())class ModelAdminJson(TableRegister):base_url = "/crud/"primary_key = "id"page_json_url = "/curd/model.json"def get_item(self, request: Request):id_ = request.get(self.primary_key)return {"name": "mock data", "id": id_}def delete_item(self, request: Request):id_ = request.get(self.primary_key)return {"name": "mock data", "id": id_}def put_item(self, request: Request):id_ = request.get(self.primary_key)return {"name": "mock data", "id": id_}def options_item(self, request: Request):id_ = request.get(self.primary_key)return {"name": "mock data", "id": id_}def get_items(self, request: Request):return [{"name": f"mock data {id_}", "id": id_} for id_ in range(10)]def post_item(self, request: Request):return {"name": "mock data", "id": 0}class LoginJson(JsonRegister):page_json_url: str = "/login.json""""获取json配置接口地址"""title: str = """""标题"""success_redirect_url = "/""""成功登陆后的重定向地址"""login_params = {"url": "${serverUrl}/login/","method": "post","dataType": "form-data"}def register(self, router: APIRouter):super(LoginJson, self).register(router=router)router.add_api_route("/login/", endpoint=self.post_item, methods=["POST"])def post_item(self, request: Request):return {"name": "mock data", "id": 0}def json(self):return Page(**{"type": "page","title": "","style": {"backgroundImage": "linear-gradient(180deg, #86a4e9, transparent)"},"cssVars": {"--Form-input-onFocused-borderColor": "#e8e9eb","--Form-input-onHover-borderColor": "#e8e9eb"},"body": {"type": "grid-2d","cols": 12,"grids": [{"x": 5,"y": 5,"h": 1,"w": 4,"width": 200,"type": "form","mode": "horizontal","title": "","api": self.login_params,"panelClassName": "p-r p-l p-b-md","redirect": self.success_redirect_url,"body": [{"type": "tpl","tpl": f"<div style='text-align: center; font-weight: bold;'><p>{self.title}</p></div>"},{"type": "input-text","label": False,"name": "userName","size": "full","placeholder": "登陆名","addOn": {"label": "","type": "text","position": "left","icon": "fa fa-user"}},{"type": "input-password","label": False,"name": "password","size": "full","placeholder": "密码","addOn": {"label": "","type": "text","position": "left","icon": "fa fa-lock"}},{"type": "checkbox","label": False,"name": "record","option": "记住密码"},{"type": "control","label": False,"body": {"type": "button","level": "primary","actionType": "submit","block": True,"label": "登陆","size": "lg"}}]}]}}).to_dict()class LoginHtml(HtmlRegister):page_url: str = "/login""""获取静态页面地址"""login_json: LoginJson = LoginJson()def html(self):return HTMLResponse(Page(body=Service(schemaApi=f"get:{self.login_json.page_json_url}")).render())

启动运行

import json
import refrom fastapi import FastAPI, Request, APIRouter
from default_template import *app = FastAPI()def main_router():router = APIRouter()login_json = LoginJson()login_json.title = "欢迎登录"login_json.success_redirect_url = "/#/home"login_json.register(router=router)"""登录json"""router_json = RouterJson()router_json.children_pages = [{"label": "首页","url": "/home","schema": {"type": "markdown","value": "# title\n markdown **text**"}},{"label": "测试页面","url": "/parent","redirect": "/parent/pageA","children": [{"label": "测试页面1","url": "pageA","schemaApi": "get:/pages/crud-list.json"},{"label": "测试页面2","url": "pageB","schemaApi": "get:/pages/crud-list.json"}]}]router_json.register(router=router)"""路由json"""login_html = LoginHtml()login_html.login_json = login_jsonlogin_html.register(router=router)"""登录页面"""app_admin_html = AppAdminHtml()app_admin_html.app_brandName = "测试应用"app_admin_html.router_json = router_jsonapp_admin_html.register(router=router)"""后台页面"""return routerapp.include_router(main_router())if __name__ == "__main__":import uvicornuvicorn.run(app, host="0.0.0.0", port=9000)