Custom variables for Mailgun

mailgun-1.rb

# Attempt 1:
# Send variables using v:[my variable]

api_key = "key-zxy" # my key
api_url = "https://api.mailgun.net/v2/drip.mailgun.org"

# Using the Faraday gem
connection = Faraday.new(:url => api_url) do |builder|
  builder.request :url_encoded
  builder.response :json, :content_type => /\bjson$/
  builder.adapter Faraday.default_adapter
end

connection.basic_auth("api", api_key)

data = {}
data["from"] = "Sender <[email protected]>"
data["to"] = "[email protected]"
data["subject"] = "Subject"
data["text"] = "Text body"
data["html"] = "HTML body"
data["o:tracking"] = true
data["o:tracking-clicks"] = true
data["o:tracking-opens"] = true

# These are my custom variables I need to send with messages
data["v:delivery_id"] = 123
data["v:account_id"] = 456

connection.post do |req|
  req.url "messages"
  req.params = data
end

# The message gets sent, but custom variables do not appear in the webhook

mailgun-2.rb

# Attempt 2:
# Serialize variables into one param

api_key = "key-zxy" # my key
api_url = "https://api.mailgun.net/v2/drip.mailgun.org"

# Using the Faraday gem
connection = Faraday.new(:url => api_url) do |builder|
  builder.request :url_encoded
  builder.response :json, :content_type => /\bjson$/
  builder.adapter Faraday.default_adapter
end

connection.basic_auth("api", api_key)

data = {}
data["from"] = "Sender <[email protected]>"
data["to"] = "[email protected]"
data["subject"] = "Subject"
data["text"] = "Text body"
data["html"] = "HTML body"
data["o:tracking"] = true
data["o:tracking-clicks"] = true
data["o:tracking-opens"] = true

# These are my custom variables I need to send with messages
data["v:my-vars"] = MultiJson.dump({
  "account_id" => 123,
  "delivery_id" => 456
})

connection.post do |req|
  req.url "messages"
  req.params = data
end

# The message gets sent, but custom variables do not appear in the webhook

mailgun-3.rb

# Attempt 3:
# Set serialized variables as a header

api_key = "key-zxy" # my key
api_url = "https://api.mailgun.net/v2/drip.mailgun.org"

# Using the Faraday gem
connection = Faraday.new(:url => api_url) do |builder|
  builder.request :url_encoded
  builder.response :json, :content_type => /\bjson$/
  builder.adapter Faraday.default_adapter
end

connection.basic_auth("api", api_key)

data = {}
data["from"] = "Sender <[email protected]>"
data["to"] = "[email protected]"
data["subject"] = "Subject"
data["text"] = "Text body"
data["html"] = "HTML body"
data["o:tracking"] = true
data["o:tracking-clicks"] = true
data["o:tracking-opens"] = true

# These are my custom variables I need to send with messages
data["h:X-Mailgun-Variables"] = MultiJson.dump({
  "account_id" => 123,
  "delivery_id" => 456
})

connection.post do |req|
  req.url "messages"
  req.params = data
end

# The message gets sent, but custom variables do not appear in the webhook

hey! How did you parse the variables in the template? I'm stuck here too

it doesn't seem to be possible...
... at least not so far ...