Lua

HTTP Response Inspection

See more HTTP Examples

Demonstrates how to inspect the HTTP response, including the status code, status text, and response headers, for Chilkat methods that don't use an HttpResponse object. Lua

local chilkat = require("chilkat")

local http = chilkat.Http.new()

-- Returns the contents of the response body.
local jsonText = http:quick_get_str("https://chilkatsoft.com/helloWorld.json")

-- Examine the response status code.
print("response status code: " .. http.last_status)

-- Examine the response status text
print("response status text: " .. http.last_status_text)

-- Examine the full response header.
print("response header:")
print(http.last_response_header)
print("----")

-- Examine the response content-type
print("LastContentType = " .. http.last_content_type)

-- Examine the response last-mod date
print("LastModDate = " .. http.last_mod_date)

-- Load the response header into a Chilkat MIME object to access its fields individually.
local mime = chilkat.Mime.new()
mime:load_mime(http.last_response_header)

local numHeaders = mime.num_header_fields
local i = 0
print("---- MIME Headers ----")
while i < numHeaders do
    print("name:  " .. mime:get_header_field_name(i))
    print("value: " .. mime:get_header_field_value(i))
    i = i + 1
end

print("----")

-- Get a header field value by name:
print("ETag: " .. mime:get_header_field("ETag"))

-- Output:

-- response status code: 200
-- response status text: OK
-- response header:
-- Content-Type: application/json
-- Last-Modified: Sun, 20 Aug 2023 11:36:27 GMT
-- Accept-Ranges: bytes
-- ETag: "34c27f8e5ad3d91:0"
-- Server: Microsoft-IIS/10.0
-- X-Powered-By: ASP.NET
-- Date: Sat, 30 Aug 2025 14:38:13 GMT
-- Content-Length: 22
-- ----
-- LastContentType = application/json
-- LastModDate = 2023-08-20
-- ---- MIME Headers ----
-- name:  Content-Type
-- value: application/json
-- name:  Last-Modified
-- value: Sun, 20 Aug 2023 11:36:27 GMT
-- name:  Accept-Ranges
-- value: bytes
-- name:  ETag
-- value: "34c27f8e5ad3d91:0"
-- name:  Server
-- value: Microsoft-IIS/10.0
-- name:  X-Powered-By
-- value: ASP.NET
-- name:  Date
-- value: Sat, 30 Aug 2025 14:38:13 GMT
-- name:  Content-Length
-- value: 22
-- ----
-- ETag: "34c27f8e5ad3d91:0"