80 lines
2.4 KiB
Python
80 lines
2.4 KiB
Python
from fastapi import APIRouter
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import pyecharts
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from pyecharts import options as opts
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from pyecharts.charts import Bar
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from pyecharts.faker import Faker
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from pyecharts.globals import CurrentConfig
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import json
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# 创建 APIRouter 实例
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router = APIRouter(prefix="/bigscreen", tags=["大屏展示"])
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# 配置使用自定义的 ECharts 路径
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CurrentConfig.ONLINE_HOST = "https://gcore.jsdelivr.net/npm/echarts@6.0.0/dist/"
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# 定义一个 helloWorld 路由
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@router.get("/hello")
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async def hello_world():
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return {"message": "helloWorld"}
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# 生成图表配置的函数
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def generate_bar_chart_config():
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c = (
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Bar()
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.add_xaxis(Faker.choose())
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.add_yaxis("商家A", Faker.values())
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.add_yaxis("商家B", Faker.values())
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.set_global_opts(title_opts=opts.TitleOpts(title="Bar-MarkLine（自定义）"))
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.set_series_opts(
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label_opts=opts.LabelOpts(is_show=False),
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markline_opts=opts.MarkLineOpts(
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data=[opts.MarkLineItem(y=50, name="yAxis=50")]
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),
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)
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)
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# 获取图表的选项配置，使用 dump_options_with_quotes 方法获取可以直接序列化的选项
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options_str = c.dump_options_with_quotes()
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# 将字符串转换为 JSON 对象
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options_json = json.loads(options_str)
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return options_json
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# 定义一个返回图表配置的路由
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@router.get("/chart/bar")
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async def get_bar_chart_config():
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"""
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获取柱状图配置
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"""
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chart_config = generate_bar_chart_config()
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return chart_config
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# 定义一个带有参数的路由，可以自定义图表标题
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@router.get("/chart/bar/{title}")
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async def get_custom_bar_chart_config(title: str):
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"""
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获取自定义标题的柱状图配置
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"""
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c = (
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Bar()
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.add_xaxis(Faker.choose())
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.add_yaxis("商家A", Faker.values())
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.add_yaxis("商家B", Faker.values())
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.set_global_opts(title_opts=opts.TitleOpts(title=title))
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.set_series_opts(
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label_opts=opts.LabelOpts(is_show=False),
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markline_opts=opts.MarkLineOpts(
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data=[opts.MarkLineItem(y=50, name="yAxis=50")]
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),
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)
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)
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# 获取图表的选项配置
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options_str = c.dump_options_with_quotes()
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# 将字符串转换为 JSON 对象
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options_json = json.loads(options_str)
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return options_json
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