@magic.batua/recharge/Source/DTH.ts

The Recharge module manages all the mobile prepaid, datacard and DTH recharge functionalities of the Magic Batua platform.

/**
 *  @module     DTH
 *  @overview   Defines the `DTH` class.
 *  
 *  @author     Animesh Mishra <hello@animesh.ltd>
 *  @copyright  © Animesh Ltd. All Rights Reserved.
 */

import * as Request         from "request-promise-native"
import * as RechargeError   from "./RechargeError"
import { Operator }         from "./Operator"
import { RIPCreds }         from "./RIPCreds"
import { RechargeBill }     from "../index"
import { StatusResponse }   from "./StatusResponse"

/**
 *  Encapsulates all the DTH rechage functionalities.
 */
export class DTH {
    public operator: Operator
    public subscriberID: string
    public amount: number

    public constructor(operator: Operator, subscriberID: string, amount: number) {
        this.operator = operator
        this.subscriberID = subscriberID
        this.amount = amount
    }

    /**
     *  Carries out the DTH recharge operation as specified.
     *
     *  @param creds            Merchant credentials to access Rocket in Pocket API
     *  @param transactionID    Transaction ID set by the Magic Transaction module
     */
    public async Recharge(creds: RIPCreds, transactionID: string, live: boolean = false): Promise<RechargeBill> {
        let options = {
            method: "GET",
            uri: `https://${creds.baseURL}/recharge/dth`,
            headers: {
                Accept: "application/json"
            },
            qs: {
                client_id: creds.merchantID,
                client_key: creds.merchantKey,
                custid: this.subscriberID,
                operator_code: this.operator.code,
                amount: this.amount,
                live: live,
                client_order_id: transactionID
            }
        }

        let response = await Request(options)
        response = JSON.parse(response)
        let error = RechargeError.Check(response)
        if(error) { throw error }

        return new RechargeBill(this, response)
    }

    //
    // Static Methods
    //

    /**
     *  Checks status of a previously submitted recharge request. We make use of Rocket in
     *  Pocket callbacks for status updates. So this is largely implemented as a backup in
     *  case RIP callback systems fail.
     *
     *  @param transactionID    Magic Batua transaction ID of the recharge request
     */
    public static async CheckStatus(creds: RIPCreds, transactionID: string): Promise<StatusResponse> {
        let options = {
            method: "GET",
            uri: `https://${creds.baseURL}/recharge/order`,
            headers: {
                Accept: "application/json"
            },
            qs: {
                client_order_id: transactionID
            }
        }

        let response = await Request(options)
        response = JSON.parse(response)
        let error = RechargeError.Check(response)
        if(error) { throw error }

        return {
            operatorReference: response.opr_transid,
            vendorReference: response.rocket_trans_id,
            status: response.status,
            date: response.datetime
        }
    }

    /**
     *  Fetches a list of all DTH rechage operators supported by the Rocket in Pocket
     *  API. The result is an array of `Operator` types.
     *
     *  @param creds    Merchant credentials to connect with Rocket in Pocket API
     *  @returns        An array of operators
     */
    public static async AllOperators(creds: RIPCreds): Promise<Array<Operator>> {
        let options = {
            method: "GET",
            uri: `https://${creds.baseURL}/operators/dth`,
            headers: {
                Accept: "application/json"
            },
            qs: {
                client_id: creds.merchantID,
                client_key: creds.merchantKey
            }
        }

        let response = await Request(options)
        response = JSON.parse(response)
        let error = RechargeError.Check(response)
        if(error) { throw error }

        let operators = Array<Operator>()
        for(var operator of response) {
            operators.push(new Operator(operator))
        }
        return operators
    }
}