In Ruby, how to upload multiple files in single request using RESTClient - ruby

Question

I have to upload multiple files as form request. I am using the Rest Client to post my request. I am able to upload single file but I am not sure how to add multiple files in a single request.
I searched/googled for such option and I am not finding any solution that solves my problem.
Below is my code.
It has variable argument (*yamlfile) which takes one or more files. I have to upload all the files together.
The issue now is , I am getting syntax error when I add the loop to extract the file within the payload.
my assumption is now to form this outside the payload and include it inside the payload block but I am not sure how to do it.
Can someone help me with that.
( I have tried net/http/post/multipart library too and I don't find much documents around it)
def uploadRest(endpoint,archive_file_path,,yaml_file_path,*yamlfile)
$arg_len=yamlfile.length
request = RestClient::Request.new(
:method => :post,
:url => endpoint,
:payload => {
:multipart => true,
:job_upload_archive => File.new(archive_file_path,'rb'),
:job_upload_path => "/tmp",
# Trying to add multiple file, but I get syntax error
yamlfile.each_with_index { |yaml, index|
:job_upload_yaml_file+index => File.new("#{yaml_file_path}/#{pmml}")
}
})
response=request.execute
puts response.code
end

Answer 1

uploadRest(endpoint,archive_file_path,yaml_file_path,*yamlfile)
#files=Array.new
yamlfile.each{ |yaml_file|
#files.push(File.new("#{yaml_file_path}/#{yaml_file}"))
}
request = RestClient::Request.new(
:method => :post,
:url => endpoint,
:payload => { :multipart => true, :job_upload_archive => File.new(archive_file_path,'rb'),
:job_upload_path => "/tmp", :job_upload_yaml_file => #files })
response=request.execute
end

Answer 2

I had a similar problem and was able to get this to work by passing an array of arrays as a requests.
file1 = File.new("#{yaml_file_path}/#{yaml_file1}", 'rb')
file2 = File.new("#{yaml_file_path}/#{yaml_file}", 'rb')
request_body = [["files", file1], ["files", file2]]
RestClient.post url, request_body, request_headers

Answer 3

There were two issues with your question code:
1) Attempt to add a symbol to an integer
2) Attempt to insert contents of yamlfile direct into the hash (because that is what yamlfile.each_with_index returns, as opposed to how it calls your block. The return value from the block is not used)
Both of these code issues read as if you have gained experience in HAML or another templating language, and are using structures/ideas that would work in that?
There are lots of possble solutions in Ruby, but a simple approach to build up the hash in parts, as opposed to generate it in one go with clever hash-returning routines embedded. Try something like this:
payload_hash = {
:multipart => true,
:job_upload_archive => File.new(archive_file_path,'rb'),
:job_upload_path => "/tmp",
}
# This does not use the return value from each_with_index, instead it relies
# on the block to make changes to the hash by adding new key/value pairs
yamlfile.each_with_index { |yaml, index|
# This concatenates two strings, and then converts the combined
# string into the symbol that you want
file_key = ("job_upload_yaml_file"+index.to_s).to_sym
payload_hash[file_key] = File.new("#{yaml_file_path}/#{yaml}")
}
request = RestClient::Request.new(
:method => :post,
:url => endpoint,
:payload => payload_hash
)
For added code cleanliness, you could make the first two parts a separate method, and call it where it currently has payload_hash.
This should get you over current syntax hurdles. However, I have made no attempt to check whether this will allow you to upload multiple files via RESTClient.

Answer 4

Section1:
#params = {
"FacialImage" => UploadIO.new(File.new('C:\temp\ATDD\Test\test\sachin.jpg'), "image/jpeg"),
"Login" => UploadIO.new(File.new('C:\temp\ATDD\Test\test\login.txt'), "application/json")
}