Laravel/Guzzle - POST 二进制文件内容

Question

我正在尝试向第 3 方 API 发出简单的 POST 请求。API 接受文件作为 BODY 参数。具体来说，文件内容必须是二进制的：

我已使用 Postman 成功发布到此第 3 方 API，主体配置如下：

上传文件时，我使用的是 Laravel。这是代码：

//$document is a class of "UploadedFile"

$tempfile = Storage::disk('local')->putFile('/temp', $document);

然后我只是尝试使用 Guzzle 发布此文件：

use Illuminate\Support\Facades\Http;

$filepath = storage_path('app/' . $tempfile);

$post = Http::attach('file', file_get_contents($tempfile), 'myfile.pdf')->post('example.org')->json());

但是，第 3 方 API 无法将其识别为 PDF 文件：

内容类型必须是 application/vnd.hypatos.ocr+json application/pdf image/tiff image/jpeg image/png text/xml application/xml 之一

与我在邮递员中发送的请求相比，我做错了什么？这与我尝试发布到 API 的文件完全相同。

Answer 1

Content-Type您是否尝试像这样在请求标头中指定您的Http::attach('file', file_get_contents($tempfile), 'myfile.pdf')->withHeaders([    'Content-Type' => 'application/pdf',])->post('example.org')->json();

Answer 2

尝试直接从邮递员复制代码，看看您可能会丢失什么。所以这是一个很好的问题，因为处理二进制数据可能很棘手。我还没有完全完成您想要做的事情，但是，我制作了一个 laravel 页面，该页面上传一个电子表格进程，该进程会更改数据，然后弹出修改后的电子表格的下载。使用二进制文件是一件非常痛苦的事情，但这就是我学到的东西。首先是基本形式。<input id="file" type="file" class="form-control" name="file" style="height:auto;" required />然后ajax上传$.ajax({&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; async: true,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; method: 'POST',&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; enctype: 'multipart/form-data',&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; processData: false,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; contentType: false,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; cache: false,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; url: "priceIncrease/parseHeaders",&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; data: formData,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; xhr: function () {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; var myXhr = $.ajaxSettings.xhr();&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if (myXhr.upload) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; myXhr.upload.addEventListener('progress', progress, false);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return myXhr;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; });这里有额外的内容是处理进度条，但它与处理二进制数据无关，所以我将跳过它。现在，我将文件解析为数组并对其进行处理，并希望将电子表格返回给用户，这就是二进制 gigery pokery 的开始。当我返回数据时，我必须将其编码为 base64$fqn = storage_path() . DIRECTORY_SEPARATOR . 'app' . DIRECTORY_SEPARATOR . $priceIncreaseResult['filepath'] . $priceIncreaseResult['filename'];$response = base64_encode(file_get_contents($fqn));然后在前端我给它mime类型并从base64转换回来if(data['progress']['file']){&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; var result = data['progress']['file'];&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; var a = document.createElement("a");&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; var file = document.getElementById("file");&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; var filename = file.files[0].name;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; console.log(filename);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; var blob = new Blob([s2ab(atob(result))], {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; type: 'data:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet;base64,'&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; });&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; a.href = URL.createObjectURL(blob);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; a.download = filename;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; document.body.appendChild(a);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; a.click();&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; a.remove();&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }这里的最后一部分是类型转换&nbsp; &nbsp; &nbsp; &nbsp; function s2ab(s) {&nbsp; &nbsp; &nbsp; &nbsp; var buf = new ArrayBuffer(s.length);&nbsp; &nbsp; &nbsp; &nbsp; var view = new Uint8Array(buf);&nbsp; &nbsp; &nbsp; &nbsp; for (var i=0; i!=s.length; ++i) view[i] = s.charCodeAt(i) & 0xFF;&nbsp; &nbsp; &nbsp; &nbsp; return buf;&nbsp; &nbsp; }我知道这不是一次性的答案，但我确实希望您能得到一些关于使用二进制数据的激励。