Strapi学习记录

官网文档：https://docs.strapi.io/dev-docs/quick-start#_1-install-strapi-and-create-a-new-project
切换到当前支持的node版本，然后是用命令创建项目：
npx create-strapi-app@latest strapi-learn --quickstart
获取关系型数据的步骤
1）访问此页：https://docs.strapi.io/dev-docs/api/rest/interactive-query-builder

2）根据要获取的字段/组件名称，获取正确的访问URL
3）指导文章：https://strapi.io/blog/demystifying-strapi-s-populate-and-filtering

导出可以先用yarn strapi help export查看选项，然后用yarn strapi export --no-encrypt -f backup 导出数据到backup压缩包
导出可以先用yarn strapi help import查看选项，然后用yarn strapi import -f backup.tar.gz 导入数据到backup压缩包
一个api下面那些text、image之类的直接的属性，默认可以从api读到，但是如果是component和dynamic zone，就需要在url里添加populate才能够获得。访问此页：https://docs.strapi.io/dev-docs/api/rest/interactive-query-builder

为了避免长长的URL，可以使用：yarn strapi generate，做一个中间件

$ strapi generate
? Strapi Generators middleware - Generate a middleware for an API
? Middleware name landing-page-populate
? Where do you want to add this middleware? Add middleware to an existing API
? Which API is this for? landing-page

会创建一个中间件，找到那个中间件，把之前那个query builder里的东西复制进去：

const populate = {
  metadata: {
    populate: {
      metaImage: {
        populate: true,
        fields: ["name", "alternativeText", "url"],
      },
    },
  },
  blocks: {
    populate: {
      link: {
        pupulate: true,
      },
      image: {
        fields: ["name", "alternativeText", "url"],
      },
      card: {
        populate: {
          image: {
            fields: ["name", "alternativeText", "url"],
          },
        },
      },
      plan: {
        populate: ["services", "link"],
      },
      form: {
        populate: ["input", "button"],
      },
    },
  },
};

然后在routes的landing-page里，添加中间件名字。

module.exports = createCoreRouter('api::landing-page.landing-page', {
  config: {
    find: {
      middlewares: ['api::landing-page.landing-page-populate']
    },
    findOne: {
      middlewares: ['api::landing-page.landing-page-populate']
    }
  }
});

重启就可以了（问题，这不就把获取数据的权限控制在后端了嘛，前端就没有这个灵活性了）