// config/plugin.js
exports.esPlugin = {
  enable: true,
  package: 'egg-es-plugin',
};

// /config/config.default.js
exports.esPlugin = {
  client: {
    host: 'localhost:9200', // elasticsearch 访问地址
    apiVersion: '7.6', // elasticsearch 版本（一个小数点即可，即不要写精确版本，如 7.6.1 需写为 7.6）
  },
};

async findOneByES(userId) {
  const { ctx } = this;

  try {
    const esData = await ctx.esSearch({
      index: 'user',
      from: 0,
      size: 10,
      body: {
        query: {
          match: {
            id: userId
          },
        },
      },
    });

    return esData.data[0]
  } catch (error) {
    throw error;
  }
}

{
  total: 3,
  data: [{}, {}, {}]
}