红宝石POST请求：PDF文件

问题描述

上传文件的API的例子是这样的。

The API example for uploading documents is this

headers = {
    'Authorization': 'Bearer ACCESS_TOKEN',
}
params = {
    'doctor': 'https://drchrono.com/api/doctors/1234',
    'patient': 'https://drchrono.com/api/patients/5678',
    'description': 'Short document description here',
    'date': '2014-02-24',
    'metatags': json.dumps(['tag1', 'tag2']),
}
with open('/path/to/your.pdf', 'rb') as f:
    files = {'document': f}
    requests.post(
        'https://drchrono.com/api/documents',
        data=params, files=files, headers=headers,
    )

我用大虾来创建一个PDF文件。而另一个使得它在浏览器中查看一个路由自动下载PDF文件。我是运行到这样的问题（要揣摩它是否是一个虾PDF问题或PDF的问题）我下载一个PDF掉，这是相当基本的网。同样的问题。我使用HTTParty送我POST请求。

I use Prawn to create a PDF. One route automatically downloads the PDF while the other renders it to be viewed in the browser. I was running into issues so (to try to figure out whether it was a Prawn PDF issue or a PDF issue) I downloaded a PDF off the net that was rather basic. Same issues. I'm using HTTParty to send my POST request.

  headers = {'Authorization' => 'Bearer ' + access_token}
  File.open("#{Rails.root}/app/assets/test.pdf", "rb") do |file|
    params = {
      'document' => file.read,
      'doctor' => 'https://drchrono.com/api/doctors/' + doctor.id,
      'patient' => 'https://drchrono.com/api/patients/' + patient.id,
      'description' => 'Report',
      'date' => date
    }
    response = HTTParty.post('https://drchrono.com/api/documents', :headers => headers, :body => params)
    puts response
    data = JSON.parse(response.body)
    puts data
 end

我收到以下错误。

I receive the following error.

{"document"=>["No file was submitted. Check the encoding type on the form."]}

我最初以为也许文件是不应该直接在关键文档下包含在身上，但是当我注释掉我PARAMS文件，然后我收到此错误。

I initially thought perhaps "document" wasn't supposed to be included in the body directly under the key document, but when I commented out my params "document" then I received this error.

{"document"=>["This field is required."]}

所以看起来它是阅读的文档键和期望得到的文档的价值，但并非如此。如果我改变 file.read 只是文件我收到了同样的错误。

So it seems it is reading the document key and expecting to get a document value but isn't. If I change file.read to just file I receive the same error

{"document"=>["No file was submitted. Check the encoding type on the form."]}

我觉得答案很可能是超简单的，但我一直在坚持了一段时间了。任何想法？

I feel like the answer is probably extra-simple, but I've been stuck for a while now. Any ideas?

推荐答案

也许你需要将其发送的多部分请求。既然你已经使用HTTParty，你可能会发现 httmultiparty 宝石有用。例如：

Maybe you need to send it as a multipart request. Since you are already using HTTParty, you may find the httmultiparty Gem useful. Example:

require 'httmultiparty'

class DrChronoClient
  include HTTMultiParty
  base_uri 'https://drchrono.com/api'
end

File.open("#{Rails.root}/app/assets/test.pdf", "rb") do |file|
  headers = {
    :Authorization => 'Bearer ' + access_token
  }

  params = {
    :document => file.read,
    :doctor => 'https://drchrono.com/api/doctors/' + doctor.id,
    :patient => 'https://drchrono.com/api/patients/' + patient.id,
    :description => 'Report',
    :date => date
  }

  response = DrChronoClient.post('documents', :query => params, :headers => headers)
  puts response
  data = JSON.parse(response.body)
  puts data
end

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