Recommendations

The Recommendations API identifies consumption patterns from your transaction information in order to provide recommendations. These recommendations can help your customers more easily discover items that they may be interested in.
By showing your customers products that they are more likely to be interested in, you will, in turn, increase your sales.

Create business rule

Adds a new business rule for a model. These are the types of rules supported:

BlockList - BlockList enables you to provide a list of items that you do not want to return in the recommendation results.
FeatureBlockList - Feature BlockList enables you to block items based on the values of its features. Do not send more than 1000 items in a single blocklist rule or your call may timeout. If you need to block more than 1000 items, you can make several blocklist calls.
Upsale - Upsale enables you to enforce items to return in the recommendation results.
WhiteList - White List enables you to only suggest recommendations from a list of items.
FeatureWhiteList - Feature White List enables you to only recommend items that have specific feature values.
PerSeedBlockList - Per Seed Block List enables you to provide per item a list of items that cannot be returned as recommendation results.

Note: The call will fail if any of the itemIds or features provided are invalid. Make sure that the items are part of the catalog before creating a rule for those items.

Sample request bodies

BlockList rule:
    {
      "type": "blocklist",
      "parameters": {
        "blockList": { "itemIds": ["2406E770-QWR","3906E110-769"] }
      }
    }

FeatureBlockList rule:

    {
      "type": "featureBlockList",
      "parameters": {
        "featureBlockList": { "name": "Movie_category", "values":["Adult","Drama"] }
      } 
    }
Upsale rule:
    {
      "type": "upsale",
      "parameters": {
        "upsale": {"itemIds":["2406E770-769C-4189-89DE-1C9283F93A96"],"NumberOfItemsToUpsale":5}
      } 
    }
Whitelist rule:
    {
      "type": "whitelist",
      "parameters": {
        "whitelist": {"itemIds":["2406E770-QWR","3906E110-769"]}
      } 
    }
FeatureWhiteList rule:
    {
      "type": "featureWhiteList",
      "parameters": {
        "featureWhiteList": {"name":"Movie_rating","values":["PG13", "PG"]}
      } 
    }
PerSeedBlockList rule:
    {
      "type": "perSeedBlockList",
      "parameters": {
        "perSeedBlockList": {"seedItems":["9949"], "itemsToExclude":["9862","8158","8244"]}
      } 
    }

Open API testing console

Request URL

Request parameters

string

Unique identifier of the model

Request headers

(optional)
string
Media type of the body sent to the API.
string
Subscription key which provides access to this API. Found in your Cognitive Services accounts.

Request body

Parameters for the rule request

{
  "type": "string",
  "parameters": {
    "blockList": {
      "itemIds": [
        "string"
      ]
    },
    "whiteList": {
      "itemIds": [
        "string"
      ]
    },
    "upsale": {
      "itemIds": [
        "string"
      ],
      "numberOfItemsToUpsale": 0
    },
    "perSeedBlockList": {
      "seedItemIds": [
        "string"
      ],
      "itemIds": [
        "string"
      ]
    },
    "featureBlockList": {
      "name": "string",
      "values": [
        "string"
      ]
    },
    "featureWhiteList": {
      "name": "string",
      "values": [
        "string"
      ]
    }
  }
}
{
  "type": "object",
  "properties": {
    "type": {
      "description": "Type of rule",
      "type": "string"
    },
    "parameters": {
      "type": "object",
      "properties": {
        "blockList": {
          "type": "object",
          "properties": {
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "whiteList": {
          "type": "object",
          "properties": {
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "upsale": {
          "type": "object",
          "properties": {
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            },
            "numberOfItemsToUpsale": {
              "format": "int32",
              "type": "integer"
            }
          }
        },
        "perSeedBlockList": {
          "type": "object",
          "properties": {
            "seedItemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            },
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "featureBlockList": {
          "type": "object",
          "properties": {
            "name": {
              "type": "string"
            },
            "values": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "featureWhiteList": {
          "type": "object",
          "properties": {
            "name": {
              "type": "string"
            },
            "values": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        }
      },
      "description": "Parameters for rule"
    }
  }
}
{
  "type": "string",
  "parameters": {
    "blockList": {
      "itemIds": [
        "string"
      ]
    },
    "whiteList": {
      "itemIds": [
        "string"
      ]
    },
    "upsale": {
      "itemIds": [
        "string"
      ],
      "numberOfItemsToUpsale": 0
    },
    "perSeedBlockList": {
      "seedItemIds": [
        "string"
      ],
      "itemIds": [
        "string"
      ]
    },
    "featureBlockList": {
      "name": "string",
      "values": [
        "string"
      ]
    },
    "featureWhiteList": {
      "name": "string",
      "values": [
        "string"
      ]
    }
  }
}
{
  "type": "object",
  "properties": {
    "type": {
      "description": "Type of rule",
      "type": "string"
    },
    "parameters": {
      "type": "object",
      "properties": {
        "blockList": {
          "type": "object",
          "properties": {
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "whiteList": {
          "type": "object",
          "properties": {
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "upsale": {
          "type": "object",
          "properties": {
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            },
            "numberOfItemsToUpsale": {
              "format": "int32",
              "type": "integer"
            }
          }
        },
        "perSeedBlockList": {
          "type": "object",
          "properties": {
            "seedItemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            },
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "featureBlockList": {
          "type": "object",
          "properties": {
            "name": {
              "type": "string"
            },
            "values": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "featureWhiteList": {
          "type": "object",
          "properties": {
            "name": {
              "type": "string"
            },
            "values": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        }
      },
      "description": "Parameters for rule"
    }
  }
}
<RuleRequestInfo>
  <type>string</type>
  <parameters>
    <blockList>
      <itemIds>string</itemIds>
    </blockList>
    <whiteList>
      <itemIds>string</itemIds>
    </whiteList>
    <upsale>
      <itemIds>string</itemIds>
      <numberOfItemsToUpsale>0</numberOfItemsToUpsale>
    </upsale>
    <perSeedBlockList>
      <seedItemIds>string</seedItemIds>
      <itemIds>string</itemIds>
    </perSeedBlockList>
    <featureBlockList>
      <name>string</name>
      <values>string</values>
    </featureBlockList>
    <featureWhiteList>
      <name>string</name>
      <values>string</values>
    </featureWhiteList>
  </parameters>
</RuleRequestInfo>
{
  "type": "object",
  "properties": {
    "type": {
      "description": "Type of rule",
      "type": "string"
    },
    "parameters": {
      "type": "object",
      "properties": {
        "blockList": {
          "type": "object",
          "properties": {
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "whiteList": {
          "type": "object",
          "properties": {
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "upsale": {
          "type": "object",
          "properties": {
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            },
            "numberOfItemsToUpsale": {
              "format": "int32",
              "type": "integer"
            }
          }
        },
        "perSeedBlockList": {
          "type": "object",
          "properties": {
            "seedItemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            },
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "featureBlockList": {
          "type": "object",
          "properties": {
            "name": {
              "type": "string"
            },
            "values": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "featureWhiteList": {
          "type": "object",
          "properties": {
            "name": {
              "type": "string"
            },
            "values": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        }
      },
      "description": "Parameters for rule"
    }
  }
}
<RuleRequestInfo>
  <type>string</type>
  <parameters>
    <blockList>
      <itemIds>string</itemIds>
    </blockList>
    <whiteList>
      <itemIds>string</itemIds>
    </whiteList>
    <upsale>
      <itemIds>string</itemIds>
      <numberOfItemsToUpsale>0</numberOfItemsToUpsale>
    </upsale>
    <perSeedBlockList>
      <seedItemIds>string</seedItemIds>
      <itemIds>string</itemIds>
    </perSeedBlockList>
    <featureBlockList>
      <name>string</name>
      <values>string</values>
    </featureBlockList>
    <featureWhiteList>
      <name>string</name>
      <values>string</values>
    </featureWhiteList>
  </parameters>
</RuleRequestInfo>
{
  "type": "object",
  "properties": {
    "type": {
      "description": "Type of rule",
      "type": "string"
    },
    "parameters": {
      "type": "object",
      "properties": {
        "blockList": {
          "type": "object",
          "properties": {
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "whiteList": {
          "type": "object",
          "properties": {
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "upsale": {
          "type": "object",
          "properties": {
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            },
            "numberOfItemsToUpsale": {
              "format": "int32",
              "type": "integer"
            }
          }
        },
        "perSeedBlockList": {
          "type": "object",
          "properties": {
            "seedItemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            },
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "featureBlockList": {
          "type": "object",
          "properties": {
            "name": {
              "type": "string"
            },
            "values": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "featureWhiteList": {
          "type": "object",
          "properties": {
            "name": {
              "type": "string"
            },
            "values": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        }
      },
      "description": "Parameters for rule"
    }
  }
}

Response 201

Created

{
  "id": 0,
  "type": "string",
  "parameters": {
    "blockList": {
      "itemIds": [
        "string"
      ]
    },
    "whiteList": {
      "itemIds": [
        "string"
      ]
    },
    "upsale": {
      "itemIds": [
        "string"
      ],
      "numberOfItemsToUpsale": 0
    },
    "perSeedBlockList": {
      "seedItemIds": [
        "string"
      ],
      "itemIds": [
        "string"
      ]
    },
    "featureBlockList": {
      "name": "string",
      "values": [
        "string"
      ]
    },
    "featureWhiteList": {
      "name": "string",
      "values": [
        "string"
      ]
    }
  }
}
{
  "description": "the business rule response object definition",
  "type": "object",
  "properties": {
    "id": {
      "format": "int64",
      "description": "Unique identifier for Rule",
      "type": "integer"
    },
    "type": {
      "description": "Type of the rule",
      "type": "string"
    },
    "parameters": {
      "type": "object",
      "properties": {
        "blockList": {
          "type": "object",
          "properties": {
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "whiteList": {
          "type": "object",
          "properties": {
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "upsale": {
          "type": "object",
          "properties": {
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            },
            "numberOfItemsToUpsale": {
              "format": "int32",
              "type": "integer"
            }
          }
        },
        "perSeedBlockList": {
          "type": "object",
          "properties": {
            "seedItemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            },
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "featureBlockList": {
          "type": "object",
          "properties": {
            "name": {
              "type": "string"
            },
            "values": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "featureWhiteList": {
          "type": "object",
          "properties": {
            "name": {
              "type": "string"
            },
            "values": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        }
      },
      "description": "Rule Parameteres"
    }
  }
}
{
  "id": 0,
  "type": "string",
  "parameters": {
    "blockList": {
      "itemIds": [
        "string"
      ]
    },
    "whiteList": {
      "itemIds": [
        "string"
      ]
    },
    "upsale": {
      "itemIds": [
        "string"
      ],
      "numberOfItemsToUpsale": 0
    },
    "perSeedBlockList": {
      "seedItemIds": [
        "string"
      ],
      "itemIds": [
        "string"
      ]
    },
    "featureBlockList": {
      "name": "string",
      "values": [
        "string"
      ]
    },
    "featureWhiteList": {
      "name": "string",
      "values": [
        "string"
      ]
    }
  }
}
{
  "description": "the business rule response object definition",
  "type": "object",
  "properties": {
    "id": {
      "format": "int64",
      "description": "Unique identifier for Rule",
      "type": "integer"
    },
    "type": {
      "description": "Type of the rule",
      "type": "string"
    },
    "parameters": {
      "type": "object",
      "properties": {
        "blockList": {
          "type": "object",
          "properties": {
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "whiteList": {
          "type": "object",
          "properties": {
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "upsale": {
          "type": "object",
          "properties": {
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            },
            "numberOfItemsToUpsale": {
              "format": "int32",
              "type": "integer"
            }
          }
        },
        "perSeedBlockList": {
          "type": "object",
          "properties": {
            "seedItemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            },
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "featureBlockList": {
          "type": "object",
          "properties": {
            "name": {
              "type": "string"
            },
            "values": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "featureWhiteList": {
          "type": "object",
          "properties": {
            "name": {
              "type": "string"
            },
            "values": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        }
      },
      "description": "Rule Parameteres"
    }
  }
}
<RuleInfo>
  <id>0</id>
  <type>string</type>
  <parameters>
    <blockList>
      <itemIds>string</itemIds>
    </blockList>
    <whiteList>
      <itemIds>string</itemIds>
    </whiteList>
    <upsale>
      <itemIds>string</itemIds>
      <numberOfItemsToUpsale>0</numberOfItemsToUpsale>
    </upsale>
    <perSeedBlockList>
      <seedItemIds>string</seedItemIds>
      <itemIds>string</itemIds>
    </perSeedBlockList>
    <featureBlockList>
      <name>string</name>
      <values>string</values>
    </featureBlockList>
    <featureWhiteList>
      <name>string</name>
      <values>string</values>
    </featureWhiteList>
  </parameters>
</RuleInfo>
{
  "description": "the business rule response object definition",
  "type": "object",
  "properties": {
    "id": {
      "format": "int64",
      "description": "Unique identifier for Rule",
      "type": "integer"
    },
    "type": {
      "description": "Type of the rule",
      "type": "string"
    },
    "parameters": {
      "type": "object",
      "properties": {
        "blockList": {
          "type": "object",
          "properties": {
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "whiteList": {
          "type": "object",
          "properties": {
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "upsale": {
          "type": "object",
          "properties": {
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            },
            "numberOfItemsToUpsale": {
              "format": "int32",
              "type": "integer"
            }
          }
        },
        "perSeedBlockList": {
          "type": "object",
          "properties": {
            "seedItemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            },
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "featureBlockList": {
          "type": "object",
          "properties": {
            "name": {
              "type": "string"
            },
            "values": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "featureWhiteList": {
          "type": "object",
          "properties": {
            "name": {
              "type": "string"
            },
            "values": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        }
      },
      "description": "Rule Parameteres"
    }
  }
}
<RuleInfo>
  <id>0</id>
  <type>string</type>
  <parameters>
    <blockList>
      <itemIds>string</itemIds>
    </blockList>
    <whiteList>
      <itemIds>string</itemIds>
    </whiteList>
    <upsale>
      <itemIds>string</itemIds>
      <numberOfItemsToUpsale>0</numberOfItemsToUpsale>
    </upsale>
    <perSeedBlockList>
      <seedItemIds>string</seedItemIds>
      <itemIds>string</itemIds>
    </perSeedBlockList>
    <featureBlockList>
      <name>string</name>
      <values>string</values>
    </featureBlockList>
    <featureWhiteList>
      <name>string</name>
      <values>string</values>
    </featureWhiteList>
  </parameters>
</RuleInfo>
{
  "description": "the business rule response object definition",
  "type": "object",
  "properties": {
    "id": {
      "format": "int64",
      "description": "Unique identifier for Rule",
      "type": "integer"
    },
    "type": {
      "description": "Type of the rule",
      "type": "string"
    },
    "parameters": {
      "type": "object",
      "properties": {
        "blockList": {
          "type": "object",
          "properties": {
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "whiteList": {
          "type": "object",
          "properties": {
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "upsale": {
          "type": "object",
          "properties": {
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            },
            "numberOfItemsToUpsale": {
              "format": "int32",
              "type": "integer"
            }
          }
        },
        "perSeedBlockList": {
          "type": "object",
          "properties": {
            "seedItemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            },
            "itemIds": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "featureBlockList": {
          "type": "object",
          "properties": {
            "name": {
              "type": "string"
            },
            "values": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        },
        "featureWhiteList": {
          "type": "object",
          "properties": {
            "name": {
              "type": "string"
            },
            "values": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        }
      },
      "description": "Rule Parameteres"
    }
  }
}

Response 400

Code samples

@ECHO OFF

curl -v -X POST "https://westus.api.cognitive.microsoft.com/recommendations/v4.0/models/{modelId}/rules"
-H "Content-Type: application/json"
-H "Ocp-Apim-Subscription-Key: {subscription key}"

--data-ascii "{body}" 
using System;
using System.Net.Http.Headers;
using System.Text;
using System.Net.Http;
using System.Web;

namespace CSHttpClientSample
{
    static class Program
    {
        static void Main()
        {
            MakeRequest();
            Console.WriteLine("Hit ENTER to exit...");
            Console.ReadLine();
        }
        
        static async void MakeRequest()
        {
            var client = new HttpClient();
            var queryString = HttpUtility.ParseQueryString(string.Empty);

            // Request headers
            client.DefaultRequestHeaders.Add("Ocp-Apim-Subscription-Key", "{subscription key}");

            var uri = "https://westus.api.cognitive.microsoft.com/recommendations/v4.0/models/{modelId}/rules?" + queryString;

            HttpResponseMessage response;

            // Request body
            byte[] byteData = Encoding.UTF8.GetBytes("{body}");

            using (var content = new ByteArrayContent(byteData))
            {
               content.Headers.ContentType = new MediaTypeHeaderValue("< your content type, i.e. application/json >");
               response = await client.PostAsync(uri, content);
            }

        }
    }
}	
// // This sample uses the Apache HTTP client from HTTP Components (http://hc.apache.org/httpcomponents-client-ga/)
import java.net.URI;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

public class JavaSample 
{
    public static void main(String[] args) 
    {
        HttpClient httpclient = HttpClients.createDefault();

        try
        {
            URIBuilder builder = new URIBuilder("https://westus.api.cognitive.microsoft.com/recommendations/v4.0/models/{modelId}/rules");


            URI uri = builder.build();
            HttpPost request = new HttpPost(uri);
            request.setHeader("Content-Type", "application/json");
            request.setHeader("Ocp-Apim-Subscription-Key", "{subscription key}");


            // Request body
            StringEntity reqEntity = new StringEntity("{body}");
            request.setEntity(reqEntity);

            HttpResponse response = httpclient.execute(request);
            HttpEntity entity = response.getEntity();

            if (entity != null) 
            {
                System.out.println(EntityUtils.toString(entity));
            }
        }
        catch (Exception e)
        {
            System.out.println(e.getMessage());
        }
    }
}

<!DOCTYPE html>
<html>
<head>
    <title>JSSample</title>
    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>
</head>
<body>

<script type="text/javascript">
    $(function() {
        var params = {
            // Request parameters
        };
      
        $.ajax({
            url: "https://westus.api.cognitive.microsoft.com/recommendations/v4.0/models/{modelId}/rules?" + $.param(params),
            beforeSend: function(xhrObj){
                // Request headers
                xhrObj.setRequestHeader("Content-Type","application/json");
                xhrObj.setRequestHeader("Ocp-Apim-Subscription-Key","{subscription key}");
            },
            type: "POST",
            // Request body
            data: "{body}",
        })
        .done(function(data) {
            alert("success");
        })
        .fail(function() {
            alert("error");
        });
    });
</script>
</body>
</html>
#import <Foundation/Foundation.h>

int main(int argc, const char * argv[])
{
    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
    
    NSString* path = @"https://westus.api.cognitive.microsoft.com/recommendations/v4.0/models/{modelId}/rules";
    NSArray* array = @[
                         // Request parameters
                         @"entities=true",
                      ];
    
    NSString* string = [array componentsJoinedByString:@"&"];
    path = [path stringByAppendingFormat:@"?%@", string];

    NSLog(@"%@", path);

    NSMutableURLRequest* _request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:path]];
    [_request setHTTPMethod:@"POST"];
    // Request headers
    [_request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
    [_request setValue:@"{subscription key}" forHTTPHeaderField:@"Ocp-Apim-Subscription-Key"];
    // Request body
    [_request setHTTPBody:[@"{body}" dataUsingEncoding:NSUTF8StringEncoding]];
    
    NSURLResponse *response = nil;
    NSError *error = nil;
    NSData* _connectionData = [NSURLConnection sendSynchronousRequest:_request returningResponse:&response error:&error];

    if (nil != error)
    {
        NSLog(@"Error: %@", error);
    }
    else
    {
        NSError* error = nil;
        NSMutableDictionary* json = nil;
        NSString* dataString = [[NSString alloc] initWithData:_connectionData encoding:NSUTF8StringEncoding];
        NSLog(@"%@", dataString);
        
        if (nil != _connectionData)
        {
            json = [NSJSONSerialization JSONObjectWithData:_connectionData options:NSJSONReadingMutableContainers error:&error];
        }
        
        if (error || !json)
        {
            NSLog(@"Could not parse loaded json with error:%@", error);
        }
        
        NSLog(@"%@", json);
        _connectionData = nil;
    }
    
    [pool drain];

    return 0;
}
<?php
// This sample uses the Apache HTTP client from HTTP Components (http://hc.apache.org/httpcomponents-client-ga/)
require_once 'HTTP/Request2.php';

$request = new Http_Request2('https://westus.api.cognitive.microsoft.com/recommendations/v4.0/models/{modelId}/rules');
$url = $request->getUrl();

$headers = array(
    // Request headers
    'Content-Type' => 'application/json',
    'Ocp-Apim-Subscription-Key' => '{subscription key}',
);

$request->setHeader($headers);

$parameters = array(
    // Request parameters
);

$url->setQueryVariables($parameters);

$request->setMethod(HTTP_Request2::METHOD_POST);

// Request body
$request->setBody("{body}");

try
{
    $response = $request->send();
    echo $response->getBody();
}
catch (HttpException $ex)
{
    echo $ex;
}

?>
########### Python 2.7 #############
import httplib, urllib, base64

headers = {
    # Request headers
    'Content-Type': 'application/json',
    'Ocp-Apim-Subscription-Key': '{subscription key}',
}

params = urllib.urlencode({
})

try:
    conn = httplib.HTTPSConnection('westus.api.cognitive.microsoft.com')
    conn.request("POST", "/recommendations/v4.0/models/{modelId}/rules?%s" % params, "{body}", headers)
    response = conn.getresponse()
    data = response.read()
    print(data)
    conn.close()
except Exception as e:
    print("[Errno {0}] {1}".format(e.errno, e.strerror))

####################################

########### Python 3.2 #############
import http.client, urllib.request, urllib.parse, urllib.error, base64

headers = {
    # Request headers
    'Content-Type': 'application/json',
    'Ocp-Apim-Subscription-Key': '{subscription key}',
}

params = urllib.parse.urlencode({
})

try:
    conn = http.client.HTTPSConnection('westus.api.cognitive.microsoft.com')
    conn.request("POST", "/recommendations/v4.0/models/{modelId}/rules?%s" % params, "{body}", headers)
    response = conn.getresponse()
    data = response.read()
    print(data)
    conn.close()
except Exception as e:
    print("[Errno {0}] {1}".format(e.errno, e.strerror))

####################################
require 'net/http'

uri = URI('https://westus.api.cognitive.microsoft.com/recommendations/v4.0/models/{modelId}/rules')
uri.query = URI.encode_www_form({
})

request = Net::HTTP::Post.new(uri.request_uri)
# Request headers
request['Content-Type'] = 'application/json'
# Request headers
request['Ocp-Apim-Subscription-Key'] = '{subscription key}'
# Request body
request.body = "{body}"

response = Net::HTTP.start(uri.host, uri.port, :use_ssl => uri.scheme == 'https') do |http|
    http.request(request)
end

puts response.body