AA client

main.ts

import {v4 as uuidV4} from 'uuid';
import rs from "jsrsasign";


const BASE_URL = 'https://aa-sandbox.setu.co'

class AccountAggregatorClient {
    aa_id: string;
    fiu_id: string;
    client_api_key: string

    constructor(
        aa_id: string,
        fiu_id: string,
        client_api_key: string
    ) {
        this.aa_id = aa_id
        this.fiu_id = fiu_id
        this.client_api_key = client_api_key
    }

    async requestConsent(context: {
        onDate: Date,
        phoneNumber: string,
    }) {
        const {onDate, phoneNumber} = context
        const txnId: string = uuidV4()
        const payload = {
            "ver": "1.0",
            "timestamp": `${onDate.toISOString()}`,
            "txnid": `${txnId}`,
            "ConsentDetail": {
                "consentStart": "{{current_datetime}}",
                "consentExpiry": "2021-12-31T11:39:57.153Z",
                "consentMode": "VIEW",
                "fetchType": "ONETIME",
                "consentTypes": ["TRANSACTIONS", "PROFILE", "SUMMARY"],
                "fiTypes": ["DEPOSIT", "BONDS", "INSURANCE_POLICIES", "PPF"],
                "DataConsumer": {"id": `${this.fiu_id}`},
                "Customer": {"id": `${phoneNumber}@${this.aa_id}`},
                "Purpose": {
                    "code": "101",
                    "refUri": "https://api.rebit.org.in/aa/purpose/101.xml",
                    "text": "Wealth management service",
                    "Category": {
                        "type": "string"
                    }
                },
                "FIDataRange": {"from": "2019-04-11T11:39:57.153Z", "to": "2020-04-17T14:25:33.440Z"},
                "DataLife": {"unit": "MONTH", "value": 0},
                "Frequency": {"unit": "MONTH", "value": 3},
                "DataFilter": [
                    {"type": "TRANSACTIONAMOUNT", "operator": ">=", "value": "10"}
                ]
            }
        }
        const jwtToken: string = rs.KJUR.jws.JWS.sign(
            null,
            {"alg": "RS256"},
            JSON.stringify(payload)
        )
        const response: Response = await fetch(`${BASE_URL}/Consent`, {
            method: 'POST',
            headers: {
                'client_api_key': this.client_api_key,
                'x-jws-signature': jwtToken,
            }
        })
    }
}

package.json

{
  "name": "aa-client",
  "version": "1.0.0",
  "main": "index.js",
  "license": "MIT",
  "devDependencies": {
    "@types/jsrsasign": "^8.0.13",
    "@types/uuid": "^8.3.1",
    "axios": "^0.21.4",
    "typescript": "^4.4.3"
  },
  "dependencies": {
    "jsrsasign": "^10.4.0",
    "jsrsasign-util": "^1.0.5",
    "uuid": "^8.3.2"
  }
}