cbsnexora-backend/fetch_accounts.js

const https = require('https');
const agent = new https.Agent({ rejectUnauthorized: false });

fetch('https://localhost:8443/fineract-provider/api/v1/authentication?username=mifos&password=password&tenantIdentifier=default', {
    method: 'POST',
    agent: agent
}).then(res => res.json()).then(data => {
    const token = data.base64EncodedAuthenticationKey;
    return fetch('https://localhost:8443/fineract-provider/api/v1/clients/9/accounts?tenantIdentifier=default', {
        headers: {
            'Authorization': 'Basic ' + token,
            'Fineract-Platform-TenantId': 'default'
        },
        agent: agent
    });
}).then(res => res.json()).then(data => {
    console.log(JSON.stringify(data, null, 2));
}).catch(console.error);