Read Plans By Subscription

curl -X GET "https://secure.fusebill.com/v1/planFamilies/bySubscription/{subscriptionId}"\
-H "Content-Type: application/json" \
-H "Authorization: Basic {APIKey}" \

//Json Payload
string jsonData = "{customerid:{customerId},planFamilyRelationshipId:{planFamilyRelationshipId},migrationTimingOption:'NextBillingPeriod'}}";
//Setup API key
string apiKey = "{APIKey}";
//Configure URI
WebRequest request = WebRequest.Create("https://secure.fusebill.com/v1/planFamilies/bySubscription/{subscriptionId}");
//Add Content type
request.ContentType = "application/json";
//Add Api key authorization
request.Headers.Add(HttpRequestHeader.Authorization, "Basic "+apiKey);
//Set request method
request.Method = "GET";
//Add the json data to request
using (var streamWriter = new StreamWriter(request.GetRequestStream()))
{
  streamWriter.Write(jsonData);
  streamWriter.Flush();
  streamWriter.Close();
}
//Perform the request
var httpResponse = (HttpWebResponse)request.GetResponse();
//Record the response from our request
var result = "";
using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
{
  result = streamReader.ReadToEnd();
}

import requests

headers = {'Authorization' : 'Basic {API Key}', 'Content-Type' : 'application/json'}
r = requests.get('https://secure.fusebill.com/v1/planFamilies/bySubscription/{subscriptionId}', headers=headers)
print(r.content)

{
   "code":"upgrademigration",
   "name":"Upgrade Migration",
   "description":null,
   "earningOption":"None",
   "nameOverrideOption":"DoNotTransfer",
   "descriptionOverrideOption":"DoNotTransfer",
   "referenceOption":"DoNotTransfer",
   "expiryOption":"DoNotTransfer",
   "contractStartOption":"Transfer",
   "contractEndOption":"Transfer",
   "plans":[
      {
         "planId":828556,
         "planCode":"premiumplan",
         "planName":"Premium Plan",
         "planFrequencies":[
            {
               "id":1868701,
               "numberOfIntervals":1,
               "interval":"Monthly"
            }
         ],
         "id":1309,
         "uri":"https://secure.fusebill.com/v1/PlanFamilyPlans/1309"
      }
   ],
   "planFamilyRelationship":[
      {
         "planFamilyId":795,
         "relationshipMigrationType":"Upgrade",
         "sourceLabel":"Basic Plan (basicplan) / Every 1 month",
         "sourcePlanId":0,
         "sourcePlanFrequencyId":1868700,
         "sourcePlan":null,
         "sourcePlanFrequency":null,
         "destinationLabel":"Premium Plan (premiumplan) / Every 1 month",
         "destinationPlanId":828556,
         "destinationPlanFrequencyId":1868701,
         "destinationPlan":{
            "code":"premiumplan",
            "name":"Premium Plan",
            "reference":null,
            "description":null,
            "longdescription":null,
            "status":"Active",
            "modificationTimestamp":"0001-01-01T00:00:00",
            "planFrequencies":[
               {
                  "planRevisionId":1108336,
                  "numberOfIntervals":1,
                  "interval":"Monthly",
                  "numberOfSubscriptions":0,
                  "status":"Active",
                  "setupFees":[

                  ],
                  "charges":[

                  ],
                  "isProrated":false,
                  "prorationGranularity":null,
                  "planFrequencyUniqueId":1283935,
                  "remainingInterval":null,
                  "id":1868701,
                  "uri":null
               }
            ],
            "autoApplyChanges":false,
            "id":828556,
            "uri":"https://secure.fusebill.com/v1/Plans/828556"
         },
         "destinationPlanFrequency":{
            "numberOfIntervals":1,
            "interval":"Monthly"
         },
         "earningOption":"Unearned",
         "nameOverrideOption":"FamilyDefault",
         "descriptionOverrideOption":"FamilyDefault",
         "referenceOption":"FamilyDefault",
         "expiryOption":"FamilyDefault",
         "contractStartOption":"FamilyDefault",
         "contractEndOption":"FamilyDefault",
         "availableOnSsp":false,
         "id":1616,
         "uri":"https://secure.fusebill.com/v1/PlanFamilyRelationships/1616"
      }
   ],
   "id":795,
   "uri":"https://secure.fusebill.com/v1/PlanFamilies/795"
}

{
    "ErrorId": 0,
    "HttpStatusCode": 400,
    "Errors": [
        {
            "Key": "subscriptionId",
            "Value": "The value '1153067a1' is not valid for Int64."
        }
    ]
}