Lua

Mailgun Send Send HTML Email with Attachments and HTML Images

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Sends an HTML email with images and attachments. Lua

local chilkat = require("chilkat")

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

local http = chilkat.Http.new()

http.login = "api"
http.password = "sending_api_key"-- Replace with your actual sending API key.

local req = chilkat.HttpRequest.new()
req.http_verb = "POST"
req.path = "/v3/YOUR_DOMAIN_NAME/messages"
req.content_type = "multipart/form-data"

-- Change YOUR_DOMAIN_NAME to something like "mg.your-domain.com".
req:add_param("from", "Your Name <mailgun@YOUR_DOMAIN_NAME>")
req:add_param("to", "Joe Example <joe@example.com>")
req:add_param("subject", "Hello Joe Example")
req:add_param("html", "<html><body><b>This is the HTML body</b><br><img src=\"cid:cidStarfish.jpg\"></body></html>")

-- An a attachd file
local bd = chilkat.BinData.new()
local success = bd:load_file("qa_data/hamlet.zip")
if not success then
    print("Failed to load file attachment.")
    return
end

req:add_bd_for_upload("attachment", "hamlet.zip", bd, "application/zip")

-- add an image as CID
success = bd:load_file("qa_data/jpg/starfish.jpg")
if not success then
    print("Failed to load HTML image.")
    return
end

req:add_bd_for_upload("inline", "cidStarfish.jpg", bd, "image/jpeg")

local resp = chilkat.HttpResponse.new()
success = http:http_sreq("api.mailgun.net", 443, true, req, resp)
if not success then
    print(http.last_error_text)
    return
end

local sbResponseBody = chilkat.StringBuilder.new()
resp:get_body_sb(sbResponseBody)
local jResp = chilkat.JsonObject.new()
jResp:load_sb(sbResponseBody)
jResp.emit_compact = false

print("Response Body:")
print(jResp:emit())

local respStatusCode = resp.status_code
print("Response Status Code = " .. respStatusCode)
if respStatusCode >= 400 then
    print("Response Header:")
    print(resp.header)
    print("Failed.")
    return
end

-- Sample JSON response:
-- (Sample code for parsing the JSON response is shown below)

-- {
--   "id": "<20210429234809.1.2D550E1C94D3D98F@sandbox0e542e4c577f4bbb98c8bf6b6bca727b.mailgun.org>",
--   "message": "Queued. Thank you."
-- }

-- Sample code for parsing the JSON response...
-- Use the following online tool to generate parsing code from sample JSON:
-- Generate Parsing Code from JSON

local id = jResp:string_of("id")
local message = jResp:string_of("message")