# POST /subscription/{{customer_id}} — Create Subscription For Existing Customer > Product: **Pabbly Subscription Billing** (v1) > Base URL: `https://payments.pabbly.com/api/v1` > Auth: Basic via `Authorization` header > Canonical: `/subscription-billing/subscriptions/create-subscription-for-existing-customer` The POST request API. In which you will add the customer Id in the link. In response you will get the details of the subscribed plan and a subscription Id. Atrributes:: **Path parameters:** | Name | Type | Required | Description | |------|------|----------|-------------| | customer_id | string | Yes | | **Body parameters:** | Name | Type | Required | Description | |------|------|----------|-------------| | plan_id | string | Yes | Unique Id of the plan which you will assign to this customer. | | quantity | integer | No | Quantity of the plan. | | addons | object | No | Addons. | |   ↳ 5e3aac363c92e44b424b6dfc | object | No | | |     ↳ checked | boolean | No | | |     ↳ quantity | integer | No | Quantity of the plan. | |   ↳ 5e3aac9424b63d4b28410d4e | object | No | | |     ↳ checked | boolean | No | | |     ↳ quantity | integer | No | Quantity of the plan. | | gateway_type | string | Yes | It can be one of paypal, stripe, test, custom, connect, offline or free. Note: For Razorpay & Authorize gateway gateway_type will be "custom" and for other gateways which are not listed here for them gateway_type will be "connect" ex: Paddle, Adyen & Instamojo. | | card_number | string | No | | | month | string | No | | | year | string | No | | | cvv | string | No | | | gateway_id | string | Yes | When there are multiple payment gateways of same kind. Then add the gateway id from which you want to process the payment | | redirect_to | string | No | The customer will be redirected to this link after successful payment. | | tax_id | string | No | To record a Tax Id of a customer. | | Card Details | string | No | Card Number, Expiry, and CVV of the customers' CC. | | method_id | string | No | Payment method id if you want to charge payment from an existing or specific card. | | coupon_code | string | No | This coupon code will be added to this subscription. | | plan_amount | string | No | Enter only the plan amount without adding the currency symbol. Example: 10, 25, 78, 198 etc. | **Example request body:** ```json { "plan_id": "5e3bf8b8db85462760295d2f", "quantity": 1, "addons": { "5e3aac363c92e44b424b6dfc": { "checked": true, "quantity": 1 }, "5e3aac9424b63d4b28410d4e": { "checked": false, "quantity": 1 } }, "gateway_type": "test", "card_number": "4111111111111111", "month": "11", "year": "2020", "cvv": "423", "gateway_id": "5e3a950824b63d4b28410c8d", "redirect_to": "https://www.pabbly.com/", "tax_id": "taxid" } ``` **Response (200)** — Create Subscription For Existing Customer: ```json { "status": "success", "message": "Your payment is successful.", "data": { "user": { "currency": "INR", "verified": "0", "createdAt": "2020-12-09T10:41:08.853Z", "updatedAt": "2022-08-22T12:22:49.056Z", "id": "5fd0a9c41cc97d04a15e2a00", "first_name": "Carlos", "last_name": "Pereira", "email": "sweety.wasnik+inr@gmail.com", "address_line1": "", "address_line2": "", "city": "Avanca", "state": "Porto", "country": "Portugal", "zip_code": "3860-078", "phone": "918794265", "mobile": "", "facebook_url": "", "twitter_url": "", "time_zone": "Asia/Barnaul", "date_format": "MMM DD, YYYY hh:mm A", "currency_symbol": "₹" }, "customer": { "is_affiliate": true, "billing_address": { "street1": "", "city": "", "state": "", "state_code": "", "zip_code": "", "country": "" }, "shipping_address": { "street1": "", "city": "", "state": "", "state_code": "", "zip_code": "", "country": "" }, "referral_id": "5c7f7690b96a98eb64392147e4ee", "tax_id": "taxid", "createdAt": "2022-11-09T10:06:35.691Z", "updatedAt": "2022-11-09T10:55:20.577Z", "id": "636b7bab56e1a04bce59979d", "first_name": "exactly", "last_name": "quietly", "email_id": "excellent-village-19@inboxkitten.com" }, "product": { "status": "active", "createdAt": "2022-11-08T11:28:47.602Z", "updatedAt": "2022-11-08T11:28:47.602Z", "id": "636a3d6f6673cf11c7bc3ba2", "product_name": "Cab Booking" }, "plan": { "plan_type": "flat_fee", "plan_active": "true", "failed_payment_gateway": "", "failed_payment_gateway_array": [], "funnel": [], "setup_fee_type": "", "trial_type": "day", "createdAt": "2022-11-08T12:06:18.219Z", "updatedAt": "2022-11-09T05:42:52.486Z", "id": "636a463a18e4991283693807", "product_id": "636a3d6f6673cf11c7bc3ba2", "plan_name": "Uber Base Fare", "plan_code": "uber-base-fare", "price": 40, "billing_period": "", "billing_period_num": "", "billing_cycle": "onetime", "billing_cycle_num": "", "trial_period": 0, "setup_fee": 0, "plan_description": "


" }, "subscription": { "plan": { "plan_type": "flat_fee", "plan_active": "true", "failed_payment_gateway": "", "failed_payment_gateway_array": [], "funnel": [], "setup_fee_type": "", "trial_type": "day", "createdAt": "2022-11-08T12:06:18.219Z", "updatedAt": "2022-11-09T05:42:52.486Z", "id": "636a463a18e4991283693807", "product_id": "636a3d6f6673cf11c7bc3ba2", "plan_name": "Uber Base Fare", "plan_code": "uber-base-fare", "price": 40, "billing_period": "", "billing_period_num": "", "billing_cycle": "onetime", "billing_cycle_num": "", "trial_period": 0, "setup_fee": 0, "plan_description": "


" }, "setup_fee": 0, "currency_symbol": "₹", "addons": [ { "id": "636b3e3918e49912836955be", "name": "1 Per Min", "product_id": "636a3d6f6673cf11c7bc3ba2", "code": "1-per-min", "price": 1, "quantity": 1, "billing_cycle": "onetime", "billing_period": "", "associate_plans": "selected_plans", "plans_array": [ "636a463a18e4991283693807" ], "category_array": [ "uncategory" ], "adjusted_amount": 1 } ], "payment_method": "636b87180963064bb69bb51f", "taxable": true, "tax_apply": { "country": "", "tax_id": "taxid", "exempt_tax": [], "total_amount": 41, "total_tax": 0, "total_amount_before_tax": 41 }, "gateway_type": "test", "payment_terms": "net0", "gateway_id": "5fd0a9e53979a81ddafa0ab1", "gateway_name": "Test Gateway", "custom_fields": [], "requested_ip": "2402:e280:3e2d:3a7:51b2:2c63:86b5:16b5", "createdAt": "2022-11-09T10:55:20.589Z", "updatedAt": "2022-11-09T10:55:21.134Z", "id": "636b87180963064bb69bb51c", "customer_id": "636b7bab56e1a04bce59979d", "product_id": "636a3d6f6673cf11c7bc3ba2", "plan_id": "636a463a18e4991283693807", "amount": 40, "email_id": "excellent-village-19@inboxkitten.com", "status": "live", "quantity": 1, "starts_at": "2022-11-09T10:55:20.202Z", "activation_date": "2022-11-09T10:55:21.212Z", "expiry_date": "2122-11-09T10:55:20.202Z", "trial_days": 0, "trial_expiry_date": "", "next_billing_date": "", "last_billing_date": "2022-11-09T10:55:21.212Z", "canceled_date": null }, "invoice": { "quantity": 1, "product_id": "636a3d6f6673cf11c7bc3ba2", "setup_fee": 0, "currency_symbol": "₹", "credit_note": { "total_tax": "0.00", "status": "success", "new_plan_total": 41, "total_credit_amount": 0, "charge_amount": 41, "credit_applied": [] }, "tax_apply": { "country": "", "tax_id": "taxid", "exempt_tax": [], "total_amount": 41, "total_tax": 0, "total_amount_before_tax": 41 }, "createdAt": "2022-11-09T10:55:20.602Z", "updatedAt": "2022-11-09T10:55:20.607Z", "id": "636b87180963064bb69bb51d", "customer_id": "636b7bab56e1a04bce59979d", "subscription_id": "636b87180963064bb69bb51c", "status": "paid", "invoice_id": "INV-17", "payment_term": "net0", "amount": 41, "due_amount": 0, "due_date": "2022-11-09T10:55:20.202Z", "subscription": { "plan": { "plan_type": "flat_fee", "plan_active": "true", "failed_payment_gateway": "", "failed_payment_gateway_array": [], "funnel": [], "setup_fee_type": "", "trial_type": "day", "createdAt": "2022-11-08T12:06:18.219Z", "updatedAt": "2022-11-09T05:42:52.486Z", "id": "636a463a18e4991283693807", "product_id": "636a3d6f6673cf11c7bc3ba2", "plan_name": "Uber Base Fare", "plan_code": "uber-base-fare", "price": 40, "billing_period": "", "billing_period_num": "", "billing_cycle": "onetime", "billing_cycle_num": "", "trial_period": 0, "setup_fee": 0, "plan_description": "


" }, "setup_fee": 0, "currency_symbol": "₹", "addons": [ { "id": "636b3e3918e49912836955be", "name": "1 Per Min", "product_id": "636a3d6f6673cf11c7bc3ba2", "code": "1-per-min", "price": 1, "quantity": 1, "billing_cycle": "onetime", "billing_period": "", "associate_plans": "selected_plans", "plans_array": [ "636a463a18e4991283693807" ], "category_array": [ "uncategory" ], "adjusted_amount": 1 } ], "payment_method": "636b87180963064bb69bb51f", "taxable": true, "tax_apply": { "country": "", "tax_id": "taxid", "exempt_tax": [], "total_amount": 41, "total_tax": 0, "total_amount_before_tax": 41 }, "gateway_type": "test", "payment_terms": "net0", "gateway_id": "5fd0a9e53979a81ddafa0ab1", "gateway_name": "Test Gateway", "custom_fields": [], "requested_ip": "2402:e280:3e2d:3a7:51b2:2c63:86b5:16b5", "createdAt": "2022-11-09T10:55:20.589Z", "updatedAt": "2022-11-09T10:55:21.134Z", "id": "636b87180963064bb69bb51c", "customer_id": "636b7bab56e1a04bce59979d", "product_id": "636a3d6f6673cf11c7bc3ba2", "plan_id": "636a463a18e4991283693807", "amount": 40, "email_id": "excellent-village-19@inboxkitten.com", "status": "live", "quantity": 1, "starts_at": "2022-11-09T10:55:20.202Z", "activation_date": "2022-11-09T10:55:21.212Z", "expiry_date": "2122-11-09T10:55:20.202Z", "trial_days": 0, "trial_expiry_date": "", "next_billing_date": "", "last_billing_date": "2022-11-09T10:55:21.212Z", "canceled_date": null }, "product": { "status": "active", "createdAt": "2022-11-08T11:28:47.602Z", "updatedAt": "2022-11-08T11:28:47.602Z", "id": "636a3d6f6673cf11c7bc3ba2", "product_name": "Cab Booking" }, "invoice_link": "https://payments.pabbly.com/secureinvoice/5fd0a9c43979a81ddafa0aa3/?cinvoice_id=3dfb9801d56103c5593b5355626725f9:06b303450cbc222ffe585ddbf4e700f8931be86cd3657bd2f44648229fea8fa23c9f0ba5578e3dee35266bd5e1e1e12881c385903a9660574712672eff9c458de77d44d5c61e6caabd4bb4f258d375fd" } } } ``` **Code examples:** _cURL_ ```curl curl -X POST https://payments.pabbly.com/api/v1/subscription/{{customer_id}} \ -u {{YOUR_API_KEY}}:{{YOUR_SECRET_KEY}} \ -H "Content-Type: application/json" \ -d '{ "plan_id": "5e3bf8b8db85462760295d2f", "quantity": 1, "addons": { "5e3aac363c92e44b424b6dfc": { "checked": true, "quantity": 1 }, "5e3aac9424b63d4b28410d4e": { "checked": false, "quantity": 1 } }, "gateway_type": "test", "card_number": "4111111111111111", "month": "11", "year": "2020", "cvv": "423", "gateway_id": "5e3a950824b63d4b28410c8d", "redirect_to": "https://www.pabbly.com/", "tax_id": "taxid" }' ``` _Ruby_ ```ruby require 'net/http' require 'json' uri = URI('https://payments.pabbly.com/api/v1/subscription/{{customer_id}}') request = Net::HTTP::Post.new(uri) request.basic_auth '{{YOUR_API_KEY}}', '{{YOUR_SECRET_KEY}}' request['Content-Type'] = 'application/json' request.body = "{\"plan_id\":\"5e3bf8b8db85462760295d2f\",\"quantity\":1,\"addons\":{\"5e3aac363c92e44b424b6dfc\":{\"checked\":true,\"quantity\":1},\"5e3aac9424b63d4b28410d4e\":{\"checked\":false,\"quantity\":1}},\"gateway_type\":\"test\",\"card_number\":\"4111111111111111\",\"month\":\"11\",\"year\":\"2020\",\"cvv\":\"423\",\"gateway_id\":\"5e3a950824b63d4b28410c8d\",\"redirect_to\":\"https://www.pabbly.com/\",\"tax_id\":\"taxid\"}" response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: uri.scheme == 'https') do |http| http.request(request) end data = JSON.parse(response.body) ``` _Python_ ```python import requests from requests.auth import HTTPBasicAuth response = requests.post( 'https://payments.pabbly.com/api/v1/subscription/{{customer_id}}', auth=HTTPBasicAuth('{{YOUR_API_KEY}}', '{{YOUR_SECRET_KEY}}'), json={ 'plan_id': '5e3bf8b8db85462760295d2f', 'quantity': 1, 'addons': { '5e3aac363c92e44b424b6dfc': { 'checked': True, 'quantity': 1 }, '5e3aac9424b63d4b28410d4e': { 'checked': False, 'quantity': 1 } }, 'gateway_type': 'test', 'card_number': '4111111111111111', 'month': '11', 'year': '2020', 'cvv': '423', 'gateway_id': '5e3a950824b63d4b28410c8d', 'redirect_to': 'https://www.pabbly.com/', 'tax_id': 'taxid' }, ) data = response.json() ``` _PHP_ ```php response = client.send(request, HttpResponse.BodyHandlers.ofString()); System.out.println(response.body()); ``` _Node.js_ ```node const credentials = Buffer.from('{{YOUR_API_KEY}}:{{YOUR_SECRET_KEY}}').toString('base64'); const response = await fetch('https://payments.pabbly.com/api/v1/subscription/{{customer_id}}', { method: 'POST', headers: { 'Authorization': `Basic ${credentials}`, 'Content-Type': 'application/json', }, body: JSON.stringify({ "plan_id": "5e3bf8b8db85462760295d2f", "quantity": 1, "addons": { "5e3aac363c92e44b424b6dfc": { "checked": true, "quantity": 1 }, "5e3aac9424b63d4b28410d4e": { "checked": false, "quantity": 1 } }, "gateway_type": "test", "card_number": "4111111111111111", "month": "11", "year": "2020", "cvv": "423", "gateway_id": "5e3a950824b63d4b28410c8d", "redirect_to": "https://www.pabbly.com/", "tax_id": "taxid" }), }); const data = await response.json(); ``` _Go_ ```go package main import ( "fmt" "io" "net/http" "strings" ) func main() { payload := strings.NewReader("{\"plan_id\":\"5e3bf8b8db85462760295d2f\",\"quantity\":1,\"addons\":{\"5e3aac363c92e44b424b6dfc\":{\"checked\":true,\"quantity\":1},\"5e3aac9424b63d4b28410d4e\":{\"checked\":false,\"quantity\":1}},\"gateway_type\":\"test\",\"card_number\":\"4111111111111111\",\"month\":\"11\",\"year\":\"2020\",\"cvv\":\"423\",\"gateway_id\":\"5e3a950824b63d4b28410c8d\",\"redirect_to\":\"https://www.pabbly.com/\",\"tax_id\":\"taxid\"}") req, _ := http.NewRequest("POST", "https://payments.pabbly.com/api/v1/subscription/{{customer_id}}", payload) req.Header.Set("Content-Type", "application/json") req.SetBasicAuth("{{YOUR_API_KEY}}", "{{YOUR_SECRET_KEY}}") res, _ := http.DefaultClient.Do(req) defer res.Body.Close() body, _ := io.ReadAll(res.Body) fmt.Println(string(body)) } ``` _.NET_ ```dotnet using System.Net.Http; using System.Net.Http.Headers; using System.Text; using System.Threading.Tasks; var credentials = Convert.ToBase64String(Encoding.ASCII.GetBytes("{{YOUR_API_KEY}}:{{YOUR_SECRET_KEY}}")); var client = new HttpClient(); var request = new HttpRequestMessage(HttpMethod.Post, "https://payments.pabbly.com/api/v1/subscription/{{customer_id}}"); request.Headers.TryAddWithoutValidation("Authorization", $"Basic {credentials}"); request.Content = new StringContent("{\"plan_id\":\"5e3bf8b8db85462760295d2f\",\"quantity\":1,\"addons\":{\"5e3aac363c92e44b424b6dfc\":{\"checked\":true,\"quantity\":1},\"5e3aac9424b63d4b28410d4e\":{\"checked\":false,\"quantity\":1}},\"gateway_type\":\"test\",\"card_number\":\"4111111111111111\",\"month\":\"11\",\"year\":\"2020\",\"cvv\":\"423\",\"gateway_id\":\"5e3a950824b63d4b28410c8d\",\"redirect_to\":\"https://www.pabbly.com/\",\"tax_id\":\"taxid\"}"); request.Content.Headers.ContentType = new MediaTypeHeaderValue("application/json"); var response = await client.SendAsync(request); var data = await response.Content.ReadAsStringAsync(); Console.WriteLine(data); ``` --- **Other endpoints in Subscriptions:** - [POST /subscription/{{subscription_id}}/cancel — Cancel Subscription For Existing Customer](/subscription-billing/subscriptions/cancel-subscription-for-existing-customer) - [GET /subscription/{{subscription_id}} — Get Single Subscription](/subscription-billing/subscriptions/get-single-subscription) - [GET /subscriptions/{{customer_id}} — List All Subscriptions By Customer Id](/subscription-billing/subscriptions/list-all-subscriptions-by-customer-id) - [GET /subscriptions — List All Subscriptions](/subscription-billing/subscriptions/list-all-subscriptions) - [GET /scheduledchanges/{{suscription_id}} — Get Scheduled Subscription](/subscription-billing/subscriptions/get-scheduled-subscription) - [PUT /subscription/{{subscription_id}}/upgrade-downgrade — Upgrade Downgrade Subscription](/subscription-billing/subscriptions/upgrade-downgrade-subscription) - [POST /subscription/{{subscription_id}}/update_charges — Subscription Update Charges](/subscription-billing/subscriptions/subscription-update-charges) - [DELETE /subscriptions/{{subscription_id}} — Delete Subscription](/subscription-billing/subscriptions/delete-subscription) - [PUT /subscription/change-billing/{{subscription_id}} — Change Subscription Billing Date](/subscription-billing/subscriptions/change-subscription-billing-date) - [PUT /subscription/{{subscription_id}}/update — Update Subscription](/subscription-billing/subscriptions/update-subscription) - [PUT /subscription/{{subscription_id}}/pause — Pause Subscription](/subscription-billing/subscriptions/pause-subscription) - [PUT /subscription/{{subscription_id}}/resume — Resume Subscription](/subscription-billing/subscriptions/resume-subscription)