JSON string fails to convert to correct Lua table - json

Question

I'm performing a request to a foreign API using luasec, lua-socket and converting the data, a JSON string, to a lua table with cjson. I've read the docs of said modules and unfortunately none of it helped me with my problem. Can't link more than 2 websites with current account, sorry.
Summary: I get the response and the appropiate string using the posted request function, when turning said string into a lua table via cjson.decode the output table isn't the desired one, it's a copy of my response header, which is not intentional.
The following code is how I do my request:
local function request (req_t)
local res_t = {}
resp = https.request {
url = const.API_URL .. req_t.url,
method = req_t.method,
headers = req_t.headers,
sink = ltn12.sink.table(res_t)
}
return table.concat(res_t), resp.headers, resp.code
end
Using the following call
local res, headers = request({ ... })
I receive the proper response as a string but my goal is to do data manipulation with it, so turning said response(string) to a lua table with
local resJson = cjson.decode(res)
Does not produce the correct output. It does produce a table which is exactly the same as my response header. Here is the following output from my terminal alongside the code
When out of function type is: string
Desired response in string:
{"total_photos":221926,"photo_downloads":"186029632.0"}
When out of function type is: string
Desired response in string:
{"total_photos":221926,"photo_downloads":"186029632.0"}
After decode, type is: table
server Cowboy
strict-transport-security max-age=31536000
access-control-allow-headers *
x-ratelimit-limit 50
x-ratelimit-remaining 46
x-cache-hits 0, 0
accept-ranges bytes
access-control-request-method *
x-request-id ee5a74fd-2b10-4f46-9c25-5cfc53aeac6c
access-control-expose-headers Link,X-Total,X-Per-Page,X-RateLimit-Limit,X-RateLimit-Remaining
content-type application/json
connection close
content-length 55
fastly-debug-digest f62d52c08b1ef74db89a66a0069f0a35c49e52230567905240dacf08c9ea1813
vary Origin
cache-control no-cache, no-store, must-revalidate
x-timer S1496524765.369880,VS0,VE111
x-cache MISS, MISS
x-served-by cache-iad2123-IAD, cache-mad9429-MAD
via 1.1 vegur, 1.1 varnish, 1.1 varnish
date Sat, 03 Jun 2017 21:19:25 GMT
age 0
access-control-allow-origin *
x-runtime 0.011667
Printing header
server Cowboy
strict-transport-security max-age=31536000
access-control-allow-headers *
x-ratelimit-limit 50
x-ratelimit-remaining 46
x-cache-hits 0, 0
accept-ranges bytes
access-control-request-method *
x-request-id ee5a74fd-2b10-4f46-9c25-5cfc53aeac6c
access-control-expose-headers Link,X-Total,X-Per-Page,X-RateLimit-Limit,X-RateLimit-Remaining
content-type application/json
connection close
content-length 55
fastly-debug-digest f62d52c08b1ef74db89a66a0069f0a35c49e52230567905240dacf08c9ea1813
vary Origin
cache-control no-cache, no-store, must-revalidate
x-timer S1496524765.369880,VS0,VE111
x-cache MISS, MISS
x-served-by cache-iad2123-IAD, cache-mad9429-MAD
via 1.1 vegur, 1.1 varnish, 1.1 varnish
date Sat, 03 Jun 2017 21:19:25 GMT
age 0
access-control-allow-origin *
x-runtime 0.011667
Function that produces said log
local res, headers = request({ ... })
print('When out of function type is: ' ..type(res) .. '\n')
print('Desired response in string:')
print(res .. '\n')
resJson = cjson.decode(res)
print('\nAfter decode, type is: ' .. type(resJson) .. '\n')
pTable(resJson)
print('\nPrinting header\n')
pTable(headers)
pTable is just a function to output a table to stdout.
Thanks in advance

Answer 1

Posted function and routines are correct. The problem was located in my print table function, which I somehow had hardcoded my headers.