请求-承诺 下载 pdf 文件

request-promise download pdf file

我收到了多个 pdf 文件,必须从 REST-API 下载。

验证并连接后,我尝试使用请求承诺下载文件:

const optionsStart = {
  uri: url,
  method: 'GET',
  headers: {
      'X-TOKEN': authToken,
      'Content-type': 'applcation/pdf'
    }
  }
  request(optionsStart)
    .then(function(body, data) {
      let writeStream = fs.createWriteStream(uuid+'_obj.pdf');
      console.log(body)
      writeStream.write(body, 'binary');
      writeStream.on('finish', () => {
        console.log('wrote all data to file');
      });
      writeStream.end();
    })

请求创建一个 pdf(大约 1-2MB),但我无法打开它。 (Mac 预览显示空白页和 adobe show = >

There was an error opening this document. There was a problem reading this document (14).

我没有关于下载文件的 API 端点的信息。只要有这个卷曲:

curl -o doc.pdf --header "X-TOKEN: XXXXXX" 
http://XXX.XXX/XXX/docs/doc1

我的错误在哪里?

更新:

我在编辑中打开文件,文件如下所示:

对此没有任何经验:-)

将编码:'binary' 添加到您的请求选项:

const optionsStart = {
  uri: url,
  method: "GET",
  encoding: "binary", // it also works with encoding: null
  headers: {
    "Content-type": "application/pdf"
  }
};

encoding: null 添加到您的请求选项中:

const optionsStart = {
  uri: url,
  method: "GET",
  encoding: null,
  headers: {
    "Content-type": "application/pdf"
  }
};

然后,将响应变成一个 Buffer(如果需要的话):

const buffer = Buffer.from(response);

试试这个

const optionsStart = {
      uri: url,
      method: 'GET',
      headers: {
          'X-TOKEN': authToken,
          'Content-type': 'application/pdf'
      },
      encoding: null
  }
  request(optionsStart, (err, resp) => {
      let writeStream = fs.createWriteStream(uuid + '_obj.pdf');
      writeStream.write(resp.body, 'binary');
      writeStream.on('finish', () => {
        console.log('wrote all data to file');
      });
      writeStream.end();
  })