Lua Requires Chilkat v11.0.0+

HTTP GET with Non-USASCII Query Params

See more HTTP Examples

This example illustrates how query parameters in a URL are typically encoded and transmitted. Lua

local chilkat = require("chilkat")

-- This example assumes the Chilkat HTTP API to have been previously unlocked.
-- See Global Unlock Sample for sample code.

-- First, let's load the string "Grünhöfer GmbH" from a file.  (This is a fictitious company name.)
-- The file uses the utf-8 charset encoding.
local sbCompanyName = chilkat.StringBuilder.new()
local success = sbCompanyName:load_file("qa_data/txt/companyName.txt", "utf-8")
-- Assuming success for this example...

-- We'll send an HTTP GET request to https://chilkatsoft.com/example?company_name={company name}

-- When sending an HTTP GET request with query parameters that contain accented characters
-- (e.g., umlauts: ä, ö, ü), they must be percent-encoded (URL encoded) to ensure proper transmission and
-- interpretation by the server.  This is based on their UTF-8 byte values.
local sbUrl = chilkat.StringBuilder.new()
sbUrl:append("https://chilkatsoft.com/example?company_name=")
sbUrl:append(sbCompanyName:get_encoded("url", "utf-8"))

local http = chilkat.Http.new()

-- Send the following HTTP GET request:

-- GET /example?company_name=Gr%C3%BCnh%C3%B6fer%20GmbH HTTP/1.1
-- Host: chilkatsoft.com
-- Accept: */*
-- Accept-Encoding: gzip

local sbResponse = chilkat.StringBuilder.new()
success = http:quick_get_sb(sbUrl:get_as_string(), sbResponse)
if not success then
    print(http.last_error_text)
    return
end

print("response status code: " .. http.last_status)
print(sbResponse:get_as_string())