Get the content of a mailing (email)

curl --request GET \
     --url 'https://api.campaign.episerver.net/rest/{clientId}/smartcampaigns/{campaignId}/messages/{mailingId}/content?source=message' \
     --header 'accept: application/json'

var myHeaders = new Headers();
myHeaders.append("accept", "application/json");
myHeaders.append("content-type", "application/json");

var requestOptions = {
   method: 'GET',
   headers: myHeaders,
   redirect: 'follow'
};

fetch("https://api.campaign.episerver.net/rest/{clientId}/smartcampaigns/{campaignId}/messages/{mailingId}/content?source=message", requestOptions)
   .then(response => response.text())
   .then(result => console.log(result))
   .catch(error => console.log('error', error));

require "uri"
require "json"
require "net/http"

url = URI("https://api.campaign.episerver.net/rest/{clientId}/smartcampaigns/{campaignId}/messages/{mailingId}/content?source=message")

https = Net::HTTP.new(url.host, url.port)
https.use_ssl = true

request = Net::HTTP::Get.new(url)
request["accept"] = "application/json"
request["content-type"] = "application/json"

response = https.request(request)
puts response.read_body

import requests
import json

url = "https://api.campaign.episerver.net/rest/{clientId}/smartcampaigns/{campaignId}/messages/{mailingId}/content?source=message"

payload = {}
headers = {
   'accept': 'application/json',
   'content-type': 'application/json'
}

response = requests.request("GET", url, headers=headers, data=payload)

print(response.text)

// The content of the mailing (in the indicated content type) was retrieved successfully.

// No content could be found for the indicated content type. Ensure that the "Accept" parameter has the correct content type and the content exists.

// The content type is not supported. Ensure that the "Accept" parameter has the correct content type.