--
To provide some additional information, the following Curl command sent to httpbin.org/post..
local url_open = 'curl -u "username:password" -F "title=Companies House File" -F "correspondent=12" -F "document=@/mnt/nas/10.pdf" http://httpbin.org/post'
local command = io.popen(url_open)
local result = command:read("*a")
print(result)
Returns the following, which looks good…
{
"args": {},
"data": "",
"files": {
"document": "data:application/octet-stream;base64,JVBERi0xLjMNJeLjz9MNCjIyNyAwIG9iag08PCANL0xpbmVhcml6ZWQgMSANL08gMjMxIA0vSCBbIDIzNTAgODc5IF<REDACTED>T5dDT4+DXN0YXJ0eHJlZg0xNzMNJSVFT0YN"
},
"form": {
"correspondent": "12",
"title": "Companies House File"
},
"headers": {
"Accept": "*/*",
"Authorization": "Basic dXNlcm5hbWU6cGFzc3dvcmQ=",
"Content-Length": "66501",
"Content-Type": "multipart/form-data; boundary=------------------------1a4c10e40f1ccf8e",
"Host": "httpbin.org",
"User-Agent": "curl/7.38.0",
"X-Amzn-Trace-Id": "Root=1-6360dbdb-6bea68142a74a1762e74ca04"
},
"json": null,
"origin": "82.30.93.28",
"url": "http://httpbin.org/post"
}
Then using the following Lua code to try and achieve the same thing..
local http = require("socket.http")
local ltn12 = require("ltn12")
local mime = require("mime")
local lfs = require("lfs")
local username = "username"
local password = "password"
local httpendpoint = 'http://httpbin.org/post'
local filepath = "/mnt/nas/10.pdf"
local file = io.open(filepath, "rb")
local contents = file:read( "*a" )
-- https://stackoverflow.com/questions/3508338/what-is-the-boundary-in-multipart-form-data
local boundary = "-----BoundaryePkpFF7tjBAqx29L"
local send = "--"..boundary..
"\r\nContent-Disposition: form-data; title='Companies House File'\r\n"
.."----"..boundary..
"\r\nContent-Disposition: form-data; document="..filepath..
"\r\nContent-type: application/pdf".."\r\n"
..contents.."\r\n"
.."------"..boundary.."--\r\n"
-- Execute request (returns response body, response code, response header)
local resp = {}
local body, code, headers, status = http.request {
url = httpendpoint,
method = 'POST',
headers = {
["Authorization"] = "Basic " .. (mime.b64(username ..":" .. password)),
["Content-Length"] = lfs.attributes(filepath, 'size'),
['Content-Type'] = "multipart/form-data; boundary="..boundary,
},
-- source = ltn12.source.file( io.open(filepath,"rb") ),
source = ltn12.source.file( io.open(send) ),
sink = ltn12.sink.table(resp)
}
print(body, code, headers, status)
print(table.concat(resp))
if headers then
for k,v in pairs(headers) do
print(k,v)
end
end
I get this returned..
nil -------BoundaryePkpFF7tjBAqx29L
Content-Disposition: form-data; title='Companies House File'
---------BoundaryePkpFF7tjBAqx29L
Content-Disposition: form-data; document=/mnt/nas/10.pdf
Content-type: application/pdf
%PDF-1.3 %âãÏÓ
227 0 obj << /Linearized 1 /O 231 /H [ 2350 879 ] /L 66081 /E 19639 /N 4 /T 61422 >> endobj xref 227 57 0000000016 00000 n
0000001509 00000 n
0000001585 00000 n
0000001726 00000 n
0000003229 00000 n
0000003404 00000 n
0000003589 00000 n
0000003808 00000 n
0000003956 00000 n
0000004161 00000 n
0000004309 00000 n
0000004515 00000 n
0000004663 00000 n
0000004843 00000 n
0000005015 00000 n
0000005218 00000 n
0000005366 00000 n
0000005570 00000 n
0000005718 00000 n
0000006003 00000 n
0000006289 00000 n
0000006456 00000 n
0000006549 00000 n
0000006804 00000 n
0000007035 00000 n
0000007265 00000 n
0000007461 00000 n
0000007655 00000 n
0000007851 00000 n
0000008046 00000 n
0000008253 00000 n
0000008400 00000 n
0000008622 00000 n
0000008770 00000 n
0000008982 00000 n
0000009130 00000 n
0000009353 00000 n
0000009501 00000 n
0000009720 00000 n
0000009866 00000 n
0000010075 00000 n
0000010223 00000 n
0000010948 00000 n
0000011372 00000 n
0000011394 00000 n
0000011503 00000 n
0000012853 00000 n
0000013021 00000 n
0000013133 00000 n
0000014623 00000 n
0000014730 00000 n
0000016927 00000 n
0000016950 00000 n
0000019315 00000 n
0000019394 00000 n
0000002350 00000 n
0000003207 00000 n
trailer << /Size 284 /Info 226 0 R /Encrypt 229 0 R /Root 228 0 R /Prev 61411 /ID[] >> startxref 0 %%EOF 228 0 obj << /Type /Catalog /Pages 225 0 R /AcroForm 230 0 R >> endobj 229 0 obj << /Filter /Standard /V 1 /R 2 /O (ÞŒŠþ0á6xƒV\nX¹#'ügã;Èè_Žu®ãªæu_-) /U (Ôeè³~„ˆ¸ÚC»Ò V!Øm: No such file or directory
It’s clear I’m not getting the content sent in the right format/structure, but I cannot find any guidance that clearly explains how to construct a multi-part form submissions via Lua code..
Hoping someone can help…
GitHub - mrw298/hassio-reactor-addon
Sending a multipart form data submission via http.request, is not as straight forward as I hoped. If anyone has any time to help, I’d appreciate some guidance on what I’m missing with the following, as based on the feedback, it looks like it not seeing the file (which I think I’ve confirmed by trying to sending both the curl and Lua commands to 
