从 Ruby HTTP 请求获取响应标头
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Get response headers from Ruby HTTP request
提问by BlackHatSamurai
I'm making an HTTP request with Ruby using Net::HTTP, and I can't figure out how to get all the response headers.
我正在使用 Net::HTTP 使用 Ruby 发出 HTTP 请求，但我不知道如何获取所有响应标头。
I tried response.headerand response.headersand nothing is working.
我试过了response.header，但response.headers没有任何效果。
回答by Intrepidd
The response object actually contains the headers.
响应对象实际上包含标题。
See "Net::HTTPResponse" for more infomation.
有关更多信息，请参阅“ Net::HTTPResponse”。
You can do:
你可以做：
response['Cache-Control']
You can also call each_headeror eachon the response object to iterate through the headers.
您还可以在响应对象上调用each_header或each以遍历标头。
If you really want the headers outside of the response object, call response.to_hash
如果您真的想要响应对象之外的标头，请调用 response.to_hash
回答by Gokul M
The response Net::HTTPResponsecontains headers from Net::HTTPHeaderwhich you can get from each_headermethod as said by @Intrepidd which will return an enumerator as below:
响应Net::HTTPResponse包含标题Net::HTTPHeader，您可以从中获取each_header@Intrepidd 所说的方法，它将返回一个枚举器，如下所示：
response.each_header
#<Enumerator: #<Net::HTTPOK 200 OK readbody=true>:each_header>
[
["x-frame-options", "SAMEORIGIN"],
["x-xss-protection", "1; mode=block"],
["x-content-type-options", "nosniff"],
["content-type", "application/json; charset=utf-8"],
["etag", "W/\"51a4b917285f7e77dcc1a68693fcee95\""],
["cache-control", "max-age=0, private, must-revalidate"],
["x-request-id", "59943e47-5828-457d-a6da-dbac37a20729"],
["x-runtime", "0.162359"],
["connection", "close"],
["transfer-encoding", "chunked"]
]
You can get the actual hash using to_hmethod as below:
您可以使用to_h以下方法获取实际哈希值：
response.each_header.to_h
{
"x-frame-options"=>"SAMEORIGIN",
"x-xss-protection"=>"1; mode=block",
"x-content-type-options"=>"nosniff",
"content-type"=>"application/json; charset=utf-8",
"etag"=>"W/\"51a4b917285f7e77dcc1a68693fcee95\"",
"cache-control"=>"max-age=0, private, must-revalidate",
"x-request-id"=>"59943e47-5828-457d-a6da-dbac37a20729",
"x-runtime"=>"0.162359",
"connection"=>"close",
"transfer-encoding"=>"chunked"
}
回答by Dennis
Note that the RestClientlibrary has the expected behaviour for response.headers.
请注意，该RestClient库具有response.headers.
response.headers
{
:server => "nginx/1.4.7",
:date => "Sat, 08 Nov 2014 19:44:58 GMT",
:content_type => "application/json",
:content_length => "303",
:connection => "keep-alive",
:content_disposition => "inline",
:access_control_allow_origin => "*",
:access_control_max_age => "600",
:access_control_allow_methods => "GET, POST, PUT, DELETE, OPTIONS",
:access_control_allow_headers => "Content-Type, x-requested-with"
}
回答by Vlad
If you need user friendlyoutput then each_capitalizedcan be used:
如果您需要用户友好的输出，则each_capitalized可以使用：
response.each_capitalized { |key, value| puts " - #{key}: #{value}" }
This will print:
这将打印：
- Content-Type: application/json; charset=utf-8
- Transfer-Encoding: chunked
- Connection: keep-alive
- Status: 401 Unauthorized
- Cache-Control: no-cache
- Date: Wed, 28 Nov 2018 09:06:39 GMT
回答by Prashanth Sams
To store it in a hash =>
将其存储在哈希中 =>
response_headers = {}
your_object.response.each { |key, value| response_headers.merge!(key.to_s => value.to_s) }
puts response_headers
