Send a file using WebRun node (like -F option in curl)

I was going to ask this question, but I did figure it out, so I thought I'd post it here if anyone else is ever needing it:

I need to send a file (from File Storage) using a WebRun node, is this possible?

Similar to this curl:

curl -H "Authorization: Bearer $AUTHORIZATION_TOKEN"
-X POST
-F "file=@$PATH_TO_CSV_FILE"
"https://$HOST/THE_API"

The answer turned out to be:

In the header string I needed to add
Content-Type: multipart/form-data; boundary=<!boundary>
Where boundary can be any string

Then set a body variable like
"--" + boundary + "
" + 'Content-Disposition: form-data; name="file"; filename="myfilename.csv"
'
+ 'Content-Type: text/csv

' +FileAccess7990_outputData + "
" + "--" + boundary + "--";

my file data is in FileAccess7990_outputData
the body variable is put into the Post String of the WebRun node

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unknown

Wow...nice! I only recently figured out how to email file attachments. Sending files through an API might come in handy.

Thanks,

David

unknown

Can you please send me the contact information who has helped you to configure this? As I am having the same issue and needs some help.

Rebecca Derr

Hi Hiren, this was something I had figured out. You can reach out to me if you like at rderr@akronchildrens.org. Or it might be better to post here so that others can help or learn as well.

unknown

Thank you for quick response. Let's try here so others can learn or get help from this.

I'm trying to run with what you have suggestion above but file transmission is not attaching in the API call. I am getting 200 OK response but my json parser return message as "

A JSONObjectOrdered text must begin with '{' at 1 [character 2 line 1]"


I am using auth as vHdrStrg and then following as per recommended.  

<!vHdrStrg>
Content-Type: multipart/form-data; boundary=<!boundary>
accept: */*


I tried sending file(via uploading to the File storage) from file storage and creating file on the go and accessing from local(server). 
Also, I have question on the read of file when setting body as variable, I see you have it in the post string and what is your content type?
The API call on the post is expecting to load csv file with encoding as UTF-8 as attachment. 

Any suggestion would be greatly appreciated. Thank you so much in advance.

Rebecca Derr

I'm not sure I can address your specific error. But here is some more information that may assist you.

Regarding your <!boundary> make sure you are base64 encoding it, mine is like this in the start node:
variable name: boundary
variable type: string
variable value: "---"+base64.encodeToString(<thisIPAname>)+"---"

Regarding the file itself, mine is in FTP. Looks like I'm transferring it to file storage with FTP node, and then reading it with a FILE (ReadFile) node (encoding type binary).
Then I'm assigning that data to the var called body
variable name: body
variable type: string
variable value: "--" + boundary + "
" + 'Content-Disposition: form-data; name="file"; filename="' + file+ext + '"
'
+ 'Content-Type: text/csv

' +ReadFile_outputData + "
" + "--" + boundary + "--";

Inserting some more screenshots to maybe assist as well:

Overall flow:

Get File:

get file

Read File:

read file

Assign Body:

assign body

Post File:

post file

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