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modelproxy-engine-fetch

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    modelproxy-engine-fetch

modelproxy中fetch的engine


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modelproxy-engine-fetch

使用fetch来调用接口的engine。

支持的设置

  1. settings.timeout 设置超时时间,默认为5s。
  2. settings.cache 设置缓存,key为fullPath+method,类型为Promise。没有持久化。
  3. settings.expire 设置缓存过期时间,单位为毫秒。
  4. settings.reload 强制不使用缓存

安装

npm i modelproxy-engine-fetch

demo


    import { FetchEngine } from 'modelproxy-engine-fetch';

    const reactEngine = new FetchEngine();

    reactEngine.init();
    /**
    * 请求真正的数据接口
    * 判断http的状态码,如果不是200,直接抛出错误
    * 判断数据的code字段,如果不是200,抛出错误
    * 返回数据
    */
    reactEngine.use(async (ctx, next) => {
        if (ctx.result.status !== 200) {
            throw new Error(ctx.result.statusText);
        }

        // 这里需要clone一个fetch,不然多次调用会报错(body stream already read)
        ctx.result = await ctx.result.clone();

        // 检测服务器端的错误
        const serData = await ctx.result.json();

        if (serData.code !== 200) {
            throw new Error(serData.message);
        }
        await next();
    });

    const proxy = new modelProxy.Proxy();
    const proxyDefault = { engine: "react", mockDir: "/mock", state: __DEV__ ? "dev" : "prod" };

    proxy.addEngines({"react":reactEngine});

Licence

MIT

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Last updated on 06 Jun 2019

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