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Partner Gateway API document

/requesttopay/{referenceId} - GET

This operation is used to get the status of a request to pay. X-Reference-Id that was passed in the post is used as reference to the request.

Try it

Request

Request URL

Request parameters

  • string

    UUID of transaction to get result. Reference id used when creating the request to pay.

Request headers

  • (optional)
    string

    Authorization header used for Basic authentication and oauth. Format of the header parameter follows the standard for Basic and Bearer. Oauth uses Bearer authentication type where the credential is the received access token.

  • string

    The identifier of the EWP system where the transaction shall be processed. This parameter is used to route the request to the EWP system that will initiate the transaction.

  • string
    Subscription key which provides access to this API. Found in your Profile.

Request body

Responses

200 OK

OK. Note that a failed request to pay will be returned with this status too. The 'status' of the RequestToPayResult can be used to determine the outcome of the request. The 'reason' field can be used to retrieve a cause in case of failure.

Representations

{
  "amount": 100,
  "currency": "UGX",
  "financialTransactionId": 23503452,
  "externalId": 947354,
  "payer": {
    "partyIdType": "MSISDN",
    "partyId": 4656473839
  },
  "status": "SUCCESSFUL"
}
{
  "type": "object",
  "properties": {
    "amount": {
      "type": "string",
      "description": "Amount that will be debited from the payer account."
    },
    "currency": {
      "type": "string",
      "description": "ISO4217 Currency"
    },
    "financialTransactionId": {
      "type": "string",
      "description": "Financial transactionIdd from mobile money manager.<br> Used to connect to the specific financial transaction made in the account"
    },
    "externalId": {
      "type": "string",
      "description": "External id provided in the creation of the requestToPay transaction."
    },
    "payer": {
      "type": "object",
      "description": "Party identifies a account holder in the wallet platform. Party consists of two parameters, type and partyId. Each type have its own validation of the partyId<br> MSISDN - Mobile Number validated according to ITU-T E.164. Validated with IsMSISDN<br> EMAIL - Validated to be a valid e-mail format. Validated with IsEmail<br> PARTY_CODE - UUID of the party. Validated with IsUuid",
      "properties": {
        "partyIdType": {
          "type": "string",
          "enum": [
            "MSISDN",
            "EMAIL",
            "PARTY_CODE"
          ]
        },
        "partyId": {
          "type": "string"
        }
      }
    },
    "payerMessage": {
      "type": "string",
      "description": "Message that will be written in the payer transaction history message field."
    },
    "payeeNote": {
      "type": "string",
      "description": "Message that will be written in the payee transaction history note field."
    },
    "status": {
      "type": "string",
      "enum": [
        "PENDING",
        "SUCCESSFUL",
        "FAILED"
      ]
    },
    "reason": {
      "type": "object",
      "properties": {
        "code": {
          "type": "string",
          "enum": [
            "PAYEE_NOT_FOUND",
            "PAYER_NOT_FOUND",
            "NOT_ALLOWED",
            "NOT_ALLOWED_TARGET_ENVIRONMENT",
            "INVALID_CALLBACK_URL_HOST",
            "INVALID_CURRENCY",
            "SERVICE_UNAVAILABLE",
            "INTERNAL_PROCESSING_ERROR",
            "NOT_ENOUGH_FUNDS",
            "PAYER_LIMIT_REACHED",
            "PAYEE_NOT_ALLOWED_TO_RECEIVE",
            "PAYMENT_NOT_APPROVED",
            "RESOURCE_NOT_FOUND",
            "APPROVAL_REJECTED",
            "EXPIRED",
            "TRANSACTION_CANCELED",
            "RESOURCE_ALREADY_EXIST"
          ]
        },
        "message": {
          "type": "string"
        }
      }
    }
  }
}
{
  "amount": 100,
  "currency": "UGX",
  "externalId": 947354,
  "payer": {
    "partyIdType": "MSISDN",
    "partyId": 4656473839
  },
  "status": "FAILED",
  "reason": {
    "code": "PAYER_NOT_FOUND",
    "message": "Payee does not exist"
  }
}
{
  "type": "object",
  "properties": {
    "amount": {
      "type": "string",
      "description": "Amount that will be debited from the payer account."
    },
    "currency": {
      "type": "string",
      "description": "ISO4217 Currency"
    },
    "financialTransactionId": {
      "type": "string",
      "description": "Financial transactionIdd from mobile money manager.<br> Used to connect to the specific financial transaction made in the account"
    },
    "externalId": {
      "type": "string",
      "description": "External id provided in the creation of the requestToPay transaction."
    },
    "payer": {
      "type": "object",
      "description": "Party identifies a account holder in the wallet platform. Party consists of two parameters, type and partyId. Each type have its own validation of the partyId<br> MSISDN - Mobile Number validated according to ITU-T E.164. Validated with IsMSISDN<br> EMAIL - Validated to be a valid e-mail format. Validated with IsEmail<br> PARTY_CODE - UUID of the party. Validated with IsUuid",
      "properties": {
        "partyIdType": {
          "type": "string",
          "enum": [
            "MSISDN",
            "EMAIL",
            "PARTY_CODE"
          ]
        },
        "partyId": {
          "type": "string"
        }
      }
    },
    "payerMessage": {
      "type": "string",
      "description": "Message that will be written in the payer transaction history message field."
    },
    "payeeNote": {
      "type": "string",
      "description": "Message that will be written in the payee transaction history note field."
    },
    "status": {
      "type": "string",
      "enum": [
        "PENDING",
        "SUCCESSFUL",
        "FAILED"
      ]
    },
    "reason": {
      "type": "object",
      "properties": {
        "code": {
          "type": "string",
          "enum": [
            "PAYEE_NOT_FOUND",
            "PAYER_NOT_FOUND",
            "NOT_ALLOWED",
            "NOT_ALLOWED_TARGET_ENVIRONMENT",
            "INVALID_CALLBACK_URL_HOST",
            "INVALID_CURRENCY",
            "SERVICE_UNAVAILABLE",
            "INTERNAL_PROCESSING_ERROR",
            "NOT_ENOUGH_FUNDS",
            "PAYER_LIMIT_REACHED",
            "PAYEE_NOT_ALLOWED_TO_RECEIVE",
            "PAYMENT_NOT_APPROVED",
            "RESOURCE_NOT_FOUND",
            "APPROVAL_REJECTED",
            "EXPIRED",
            "TRANSACTION_CANCELED",
            "RESOURCE_ALREADY_EXIST"
          ]
        },
        "message": {
          "type": "string"
        }
      }
    }
  }
}
{
  "amount": "string",
  "currency": "string",
  "financialTransactionId": "string",
  "externalId": "string",
  "payer": {
    "partyIdType": "MSISDN",
    "partyId": "string"
  },
  "payerMessage": "string",
  "payeeNote": "string",
  "status": "PENDING",
  "reason": {
    "code": "PAYEE_NOT_FOUND",
    "message": "string"
  }
}
{
  "type": "object",
  "properties": {
    "amount": {
      "type": "string",
      "description": "Amount that will be debited from the payer account."
    },
    "currency": {
      "type": "string",
      "description": "ISO4217 Currency"
    },
    "financialTransactionId": {
      "type": "string",
      "description": "Financial transactionIdd from mobile money manager.<br> Used to connect to the specific financial transaction made in the account"
    },
    "externalId": {
      "type": "string",
      "description": "External id provided in the creation of the requestToPay transaction."
    },
    "payer": {
      "type": "object",
      "description": "Party identifies a account holder in the wallet platform. Party consists of two parameters, type and partyId. Each type have its own validation of the partyId<br> MSISDN - Mobile Number validated according to ITU-T E.164. Validated with IsMSISDN<br> EMAIL - Validated to be a valid e-mail format. Validated with IsEmail<br> PARTY_CODE - UUID of the party. Validated with IsUuid",
      "properties": {
        "partyIdType": {
          "type": "string",
          "enum": [
            "MSISDN",
            "EMAIL",
            "PARTY_CODE"
          ]
        },
        "partyId": {
          "type": "string"
        }
      }
    },
    "payerMessage": {
      "type": "string",
      "description": "Message that will be written in the payer transaction history message field."
    },
    "payeeNote": {
      "type": "string",
      "description": "Message that will be written in the payee transaction history note field."
    },
    "status": {
      "type": "string",
      "enum": [
        "PENDING",
        "SUCCESSFUL",
        "FAILED"
      ]
    },
    "reason": {
      "type": "object",
      "properties": {
        "code": {
          "type": "string",
          "enum": [
            "PAYEE_NOT_FOUND",
            "PAYER_NOT_FOUND",
            "NOT_ALLOWED",
            "NOT_ALLOWED_TARGET_ENVIRONMENT",
            "INVALID_CALLBACK_URL_HOST",
            "INVALID_CURRENCY",
            "SERVICE_UNAVAILABLE",
            "INTERNAL_PROCESSING_ERROR",
            "NOT_ENOUGH_FUNDS",
            "PAYER_LIMIT_REACHED",
            "PAYEE_NOT_ALLOWED_TO_RECEIVE",
            "PAYMENT_NOT_APPROVED",
            "RESOURCE_NOT_FOUND",
            "APPROVAL_REJECTED",
            "EXPIRED",
            "TRANSACTION_CANCELED",
            "RESOURCE_ALREADY_EXIST"
          ]
        },
        "message": {
          "type": "string"
        }
      }
    }
  }
}
{
  "type": "object",
  "properties": {
    "amount": {
      "type": "string",
      "description": "Amount that will be debited from the payer account."
    },
    "currency": {
      "type": "string",
      "description": "ISO4217 Currency"
    },
    "financialTransactionId": {
      "type": "string",
      "description": "Financial transactionIdd from mobile money manager.<br> Used to connect to the specific financial transaction made in the account"
    },
    "externalId": {
      "type": "string",
      "description": "External id provided in the creation of the requestToPay transaction."
    },
    "payer": {
      "type": "object",
      "description": "Party identifies a account holder in the wallet platform. Party consists of two parameters, type and partyId. Each type have its own validation of the partyId<br> MSISDN - Mobile Number validated according to ITU-T E.164. Validated with IsMSISDN<br> EMAIL - Validated to be a valid e-mail format. Validated with IsEmail<br> PARTY_CODE - UUID of the party. Validated with IsUuid",
      "properties": {
        "partyIdType": {
          "type": "string",
          "enum": [
            "MSISDN",
            "EMAIL",
            "PARTY_CODE"
          ]
        },
        "partyId": {
          "type": "string"
        }
      }
    },
    "payerMessage": {
      "type": "string",
      "description": "Message that will be written in the payer transaction history message field."
    },
    "payeeNote": {
      "type": "string",
      "description": "Message that will be written in the payee transaction history note field."
    },
    "status": {
      "type": "string",
      "enum": [
        "PENDING",
        "SUCCESSFUL",
        "FAILED"
      ]
    },
    "reason": {
      "type": "object",
      "properties": {
        "code": {
          "type": "string",
          "enum": [
            "PAYEE_NOT_FOUND",
            "PAYER_NOT_FOUND",
            "NOT_ALLOWED",
            "NOT_ALLOWED_TARGET_ENVIRONMENT",
            "INVALID_CALLBACK_URL_HOST",
            "INVALID_CURRENCY",
            "SERVICE_UNAVAILABLE",
            "INTERNAL_PROCESSING_ERROR",
            "NOT_ENOUGH_FUNDS",
            "PAYER_LIMIT_REACHED",
            "PAYEE_NOT_ALLOWED_TO_RECEIVE",
            "PAYMENT_NOT_APPROVED",
            "RESOURCE_NOT_FOUND",
            "APPROVAL_REJECTED",
            "EXPIRED",
            "TRANSACTION_CANCELED",
            "RESOURCE_ALREADY_EXIST"
          ]
        },
        "message": {
          "type": "string"
        }
      }
    }
  }
}
{
  "type": "object",
  "properties": {
    "amount": {
      "type": "string",
      "description": "Amount that will be debited from the payer account."
    },
    "currency": {
      "type": "string",
      "description": "ISO4217 Currency"
    },
    "financialTransactionId": {
      "type": "string",
      "description": "Financial transactionIdd from mobile money manager.<br> Used to connect to the specific financial transaction made in the account"
    },
    "externalId": {
      "type": "string",
      "description": "External id provided in the creation of the requestToPay transaction."
    },
    "payer": {
      "type": "object",
      "description": "Party identifies a account holder in the wallet platform. Party consists of two parameters, type and partyId. Each type have its own validation of the partyId<br> MSISDN - Mobile Number validated according to ITU-T E.164. Validated with IsMSISDN<br> EMAIL - Validated to be a valid e-mail format. Validated with IsEmail<br> PARTY_CODE - UUID of the party. Validated with IsUuid",
      "properties": {
        "partyIdType": {
          "type": "string",
          "enum": [
            "MSISDN",
            "EMAIL",
            "PARTY_CODE"
          ]
        },
        "partyId": {
          "type": "string"
        }
      }
    },
    "payerMessage": {
      "type": "string",
      "description": "Message that will be written in the payer transaction history message field."
    },
    "payeeNote": {
      "type": "string",
      "description": "Message that will be written in the payee transaction history note field."
    },
    "status": {
      "type": "string",
      "enum": [
        "PENDING",
        "SUCCESSFUL",
        "FAILED"
      ]
    },
    "reason": {
      "type": "object",
      "properties": {
        "code": {
          "type": "string",
          "enum": [
            "PAYEE_NOT_FOUND",
            "PAYER_NOT_FOUND",
            "NOT_ALLOWED",
            "NOT_ALLOWED_TARGET_ENVIRONMENT",
            "INVALID_CALLBACK_URL_HOST",
            "INVALID_CURRENCY",
            "SERVICE_UNAVAILABLE",
            "INTERNAL_PROCESSING_ERROR",
            "NOT_ENOUGH_FUNDS",
            "PAYER_LIMIT_REACHED",
            "PAYEE_NOT_ALLOWED_TO_RECEIVE",
            "PAYMENT_NOT_APPROVED",
            "RESOURCE_NOT_FOUND",
            "APPROVAL_REJECTED",
            "EXPIRED",
            "TRANSACTION_CANCELED",
            "RESOURCE_ALREADY_EXIST"
          ]
        },
        "message": {
          "type": "string"
        }
      }
    }
  }
}

400 Bad Request

Bad request, e.g. an incorrectly formatted reference id was provided.

404 Not Found

Resource not found.

Representations

{
  "code": "RESOURCE_NOT_FOUND",
  "message": "Requested resource was not found."
}
{
  "type": "object",
  "properties": {
    "code": {
      "type": "string",
      "enum": [
        "PAYEE_NOT_FOUND",
        "PAYER_NOT_FOUND",
        "NOT_ALLOWED",
        "NOT_ALLOWED_TARGET_ENVIRONMENT",
        "INVALID_CALLBACK_URL_HOST",
        "INVALID_CURRENCY",
        "SERVICE_UNAVAILABLE",
        "INTERNAL_PROCESSING_ERROR",
        "NOT_ENOUGH_FUNDS",
        "PAYER_LIMIT_REACHED",
        "PAYEE_NOT_ALLOWED_TO_RECEIVE",
        "PAYMENT_NOT_APPROVED",
        "RESOURCE_NOT_FOUND",
        "APPROVAL_REJECTED",
        "EXPIRED",
        "TRANSACTION_CANCELED",
        "RESOURCE_ALREADY_EXIST"
      ]
    },
    "message": {
      "type": "string"
    }
  }
}
{
  "type": "object",
  "properties": {
    "code": {
      "type": "string",
      "enum": [
        "PAYEE_NOT_FOUND",
        "PAYER_NOT_FOUND",
        "NOT_ALLOWED",
        "NOT_ALLOWED_TARGET_ENVIRONMENT",
        "INVALID_CALLBACK_URL_HOST",
        "INVALID_CURRENCY",
        "SERVICE_UNAVAILABLE",
        "INTERNAL_PROCESSING_ERROR",
        "NOT_ENOUGH_FUNDS",
        "PAYER_LIMIT_REACHED",
        "PAYEE_NOT_ALLOWED_TO_RECEIVE",
        "PAYMENT_NOT_APPROVED",
        "RESOURCE_NOT_FOUND",
        "APPROVAL_REJECTED",
        "EXPIRED",
        "TRANSACTION_CANCELED",
        "RESOURCE_ALREADY_EXIST"
      ]
    },
    "message": {
      "type": "string"
    }
  }
}
{
  "type": "object",
  "properties": {
    "code": {
      "type": "string",
      "enum": [
        "PAYEE_NOT_FOUND",
        "PAYER_NOT_FOUND",
        "NOT_ALLOWED",
        "NOT_ALLOWED_TARGET_ENVIRONMENT",
        "INVALID_CALLBACK_URL_HOST",
        "INVALID_CURRENCY",
        "SERVICE_UNAVAILABLE",
        "INTERNAL_PROCESSING_ERROR",
        "NOT_ENOUGH_FUNDS",
        "PAYER_LIMIT_REACHED",
        "PAYEE_NOT_ALLOWED_TO_RECEIVE",
        "PAYMENT_NOT_APPROVED",
        "RESOURCE_NOT_FOUND",
        "APPROVAL_REJECTED",
        "EXPIRED",
        "TRANSACTION_CANCELED",
        "RESOURCE_ALREADY_EXIST"
      ]
    },
    "message": {
      "type": "string"
    }
  }
}
{
  "code": "PAYEE_NOT_FOUND",
  "message": "string"
}
{
  "type": "object",
  "properties": {
    "code": {
      "type": "string",
      "enum": [
        "PAYEE_NOT_FOUND",
        "PAYER_NOT_FOUND",
        "NOT_ALLOWED",
        "NOT_ALLOWED_TARGET_ENVIRONMENT",
        "INVALID_CALLBACK_URL_HOST",
        "INVALID_CURRENCY",
        "SERVICE_UNAVAILABLE",
        "INTERNAL_PROCESSING_ERROR",
        "NOT_ENOUGH_FUNDS",
        "PAYER_LIMIT_REACHED",
        "PAYEE_NOT_ALLOWED_TO_RECEIVE",
        "PAYMENT_NOT_APPROVED",
        "RESOURCE_NOT_FOUND",
        "APPROVAL_REJECTED",
        "EXPIRED",
        "TRANSACTION_CANCELED",
        "RESOURCE_ALREADY_EXIST"
      ]
    },
    "message": {
      "type": "string"
    }
  }
}
{
  "type": "object",
  "properties": {
    "code": {
      "type": "string",
      "enum": [
        "PAYEE_NOT_FOUND",
        "PAYER_NOT_FOUND",
        "NOT_ALLOWED",
        "NOT_ALLOWED_TARGET_ENVIRONMENT",
        "INVALID_CALLBACK_URL_HOST",
        "INVALID_CURRENCY",
        "SERVICE_UNAVAILABLE",
        "INTERNAL_PROCESSING_ERROR",
        "NOT_ENOUGH_FUNDS",
        "PAYER_LIMIT_REACHED",
        "PAYEE_NOT_ALLOWED_TO_RECEIVE",
        "PAYMENT_NOT_APPROVED",
        "RESOURCE_NOT_FOUND",
        "APPROVAL_REJECTED",
        "EXPIRED",
        "TRANSACTION_CANCELED",
        "RESOURCE_ALREADY_EXIST"
      ]
    },
    "message": {
      "type": "string"
    }
  }
}

500 Internal Server Error

Internal Error. Note that if the retrieved request to pay has failed, it will not cause this status to be returned. This status is only returned if the GET request itself fails.

Representations

{
  "code": "INTERNAL_PROCESSING_ERROR",
  "message": "An internal error occurred while processing."
}
{
  "type": "object",
  "properties": {
    "code": {
      "type": "string",
      "enum": [
        "PAYEE_NOT_FOUND",
        "PAYER_NOT_FOUND",
        "NOT_ALLOWED",
        "NOT_ALLOWED_TARGET_ENVIRONMENT",
        "INVALID_CALLBACK_URL_HOST",
        "INVALID_CURRENCY",
        "SERVICE_UNAVAILABLE",
        "INTERNAL_PROCESSING_ERROR",
        "NOT_ENOUGH_FUNDS",
        "PAYER_LIMIT_REACHED",
        "PAYEE_NOT_ALLOWED_TO_RECEIVE",
        "PAYMENT_NOT_APPROVED",
        "RESOURCE_NOT_FOUND",
        "APPROVAL_REJECTED",
        "EXPIRED",
        "TRANSACTION_CANCELED",
        "RESOURCE_ALREADY_EXIST"
      ]
    },
    "message": {
      "type": "string"
    }
  }
}
{
  "type": "object",
  "properties": {
    "code": {
      "type": "string",
      "enum": [
        "PAYEE_NOT_FOUND",
        "PAYER_NOT_FOUND",
        "NOT_ALLOWED",
        "NOT_ALLOWED_TARGET_ENVIRONMENT",
        "INVALID_CALLBACK_URL_HOST",
        "INVALID_CURRENCY",
        "SERVICE_UNAVAILABLE",
        "INTERNAL_PROCESSING_ERROR",
        "NOT_ENOUGH_FUNDS",
        "PAYER_LIMIT_REACHED",
        "PAYEE_NOT_ALLOWED_TO_RECEIVE",
        "PAYMENT_NOT_APPROVED",
        "RESOURCE_NOT_FOUND",
        "APPROVAL_REJECTED",
        "EXPIRED",
        "TRANSACTION_CANCELED",
        "RESOURCE_ALREADY_EXIST"
      ]
    },
    "message": {
      "type": "string"
    }
  }
}
{
  "type": "object",
  "properties": {
    "code": {
      "type": "string",
      "enum": [
        "PAYEE_NOT_FOUND",
        "PAYER_NOT_FOUND",
        "NOT_ALLOWED",
        "NOT_ALLOWED_TARGET_ENVIRONMENT",
        "INVALID_CALLBACK_URL_HOST",
        "INVALID_CURRENCY",
        "SERVICE_UNAVAILABLE",
        "INTERNAL_PROCESSING_ERROR",
        "NOT_ENOUGH_FUNDS",
        "PAYER_LIMIT_REACHED",
        "PAYEE_NOT_ALLOWED_TO_RECEIVE",
        "PAYMENT_NOT_APPROVED",
        "RESOURCE_NOT_FOUND",
        "APPROVAL_REJECTED",
        "EXPIRED",
        "TRANSACTION_CANCELED",
        "RESOURCE_ALREADY_EXIST"
      ]
    },
    "message": {
      "type": "string"
    }
  }
}
{
  "code": "PAYEE_NOT_FOUND",
  "message": "string"
}
{
  "type": "object",
  "properties": {
    "code": {
      "type": "string",
      "enum": [
        "PAYEE_NOT_FOUND",
        "PAYER_NOT_FOUND",
        "NOT_ALLOWED",
        "NOT_ALLOWED_TARGET_ENVIRONMENT",
        "INVALID_CALLBACK_URL_HOST",
        "INVALID_CURRENCY",
        "SERVICE_UNAVAILABLE",
        "INTERNAL_PROCESSING_ERROR",
        "NOT_ENOUGH_FUNDS",
        "PAYER_LIMIT_REACHED",
        "PAYEE_NOT_ALLOWED_TO_RECEIVE",
        "PAYMENT_NOT_APPROVED",
        "RESOURCE_NOT_FOUND",
        "APPROVAL_REJECTED",
        "EXPIRED",
        "TRANSACTION_CANCELED",
        "RESOURCE_ALREADY_EXIST"
      ]
    },
    "message": {
      "type": "string"
    }
  }
}
{
  "type": "object",
  "properties": {
    "code": {
      "type": "string",
      "enum": [
        "PAYEE_NOT_FOUND",
        "PAYER_NOT_FOUND",
        "NOT_ALLOWED",
        "NOT_ALLOWED_TARGET_ENVIRONMENT",
        "INVALID_CALLBACK_URL_HOST",
        "INVALID_CURRENCY",
        "SERVICE_UNAVAILABLE",
        "INTERNAL_PROCESSING_ERROR",
        "NOT_ENOUGH_FUNDS",
        "PAYER_LIMIT_REACHED",
        "PAYEE_NOT_ALLOWED_TO_RECEIVE",
        "PAYMENT_NOT_APPROVED",
        "RESOURCE_NOT_FOUND",
        "APPROVAL_REJECTED",
        "EXPIRED",
        "TRANSACTION_CANCELED",
        "RESOURCE_ALREADY_EXIST"
      ]
    },
    "message": {
      "type": "string"
    }
  }
}

Code samples

@ECHO OFF

curl -v -X GET "https://sandbox.momodeveloper.mtn.com/collection/v1_0/requesttopay/{referenceId}"
-H "Authorization: "
-H "X-Target-Environment: "
-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("Authorization", "");
            client.DefaultRequestHeaders.Add("X-Target-Environment", "");
            client.DefaultRequestHeaders.Add("Ocp-Apim-Subscription-Key", "{subscription key}");

            var uri = "https://sandbox.momodeveloper.mtn.com/collection/v1_0/requesttopay/{referenceId}?" + queryString;

            var response = await client.GetAsync(uri);
        }
    }
}	
// // 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://sandbox.momodeveloper.mtn.com/collection/v1_0/requesttopay/{referenceId}");


            URI uri = builder.build();
            HttpGet request = new HttpGet(uri);
            request.setHeader("Authorization", "");
            request.setHeader("X-Target-Environment", "");
            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://sandbox.momodeveloper.mtn.com/collection/v1_0/requesttopay/{referenceId}?" + $.param(params),
            beforeSend: function(xhrObj){
                // Request headers
                xhrObj.setRequestHeader("Authorization","");
                xhrObj.setRequestHeader("X-Target-Environment","");
                xhrObj.setRequestHeader("Ocp-Apim-Subscription-Key","{subscription key}");
            },
            type: "GET",
            // 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://sandbox.momodeveloper.mtn.com/collection/v1_0/requesttopay/{referenceId}";
    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:@"GET"];
    // Request headers
    [_request setValue:@"" forHTTPHeaderField:@"Authorization"];
    [_request setValue:@"" forHTTPHeaderField:@"X-Target-Environment"];
    [_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://sandbox.momodeveloper.mtn.com/collection/v1_0/requesttopay/{referenceId}');
$url = $request->getUrl();

$headers = array(
    // Request headers
    'Authorization' => '',
    'X-Target-Environment' => '',
    'Ocp-Apim-Subscription-Key' => '{subscription key}',
);

$request->setHeader($headers);

$parameters = array(
    // Request parameters
);

$url->setQueryVariables($parameters);

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

// 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
    'Authorization': '',
    'X-Target-Environment': '',
    'Ocp-Apim-Subscription-Key': '{subscription key}',
}

params = urllib.urlencode({
})

try:
    conn = httplib.HTTPSConnection('sandbox.momodeveloper.mtn.com')
    conn.request("GET", "/collection/v1_0/requesttopay/{referenceId}?%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
    'Authorization': '',
    'X-Target-Environment': '',
    'Ocp-Apim-Subscription-Key': '{subscription key}',
}

params = urllib.parse.urlencode({
})

try:
    conn = http.client.HTTPSConnection('sandbox.momodeveloper.mtn.com')
    conn.request("GET", "/collection/v1_0/requesttopay/{referenceId}?%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://sandbox.momodeveloper.mtn.com/collection/v1_0/requesttopay/{referenceId}')


request = Net::HTTP::Get.new(uri.request_uri)
# Request headers
request['Authorization'] = ''
# Request headers
request['X-Target-Environment'] = ''
# 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