Create Webhook Subscription

POST /webhooks

Try it

Parameters

Idempotency-KeyheaderX-Correlation-IDheader

Bodyapplication/json

endpoint*eventType*messageType

Request sampleLanguage

curl -X POST 'https://one.ozow.com/v1/webhooks' \
  -H 'Authorization: Bearer YOUR_ACCESS_TOKEN' \
  -H 'Content-Type: application/json' \
  -H 'Idempotency-Key: string' \
  -H 'X-Correlation-ID: 00000000-0000-0000-0000-000000000000' \
  -d '{
  "endpoint": "https://example.com/",
  "eventType": "transaction.complete",
  "messageType": "thin"
}'

Response exampleStatus

{
  "id": "3fa85f64-5717-4562-b3fc-2c963f66afa2",
  "endpoint": "https://example.com/endpoint",
  "eventType": "transaction.complete",
  "messageType": "thin"
}

Built from the response schema. Values are placeholders, not real data.

POSThttps://one.ozow.com/v1/webhooksProduction

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Take a paymentEverything needed to take a payment end to end with One API, from credentials through the hosted page to the webhook that confirms it, and the test cases that prove each outcome before you go live.
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Migrate a payin from the Payments API to One APIEverything needed to move an existing redirect payin onto One API, with the legacy guide and its One API counterpart side by side.
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Create a webhook subscription.

Authentication

OAuth 2.0
scopeswebhooks

Header parameters

Idempotency-Key string
The unique key idempotency key as per the following IETF Draft
X-Correlation-ID string
Optional correlation id for the request, if not supplied a new one will be generated and passed onto all underlying requests and returned as a header.

Request body

endpoint string uri required
The uri of the webhook receiver. Must be reachable from the internet. localhost is rejected with a 403, so a local integration needs a tunnel rather than the address the browser uses.
eventType string required
The type of event the webhook subscribes to.
values"transaction.complete""refund.complete"
messageType string
Defaults to thin. Specify full to receive a larger payload with as much detail as possible.
values"thin""full"

Responses

200 OK. The request has been accepted.

X-Correlation-ID header
The correlation id for the request that was processed.

id string uuid required
The unique identifier of the webhook.
endpoint string uri required
The uri of the webhook receiver.
eventType string required
The type of event the webhook subscribes to.
values"transaction.complete""refund.complete"
messageType string required
Defaults to thin. Specify full to receive a larger payload with as much detail as possible.
values"thin""full"

400 Bad Request.

X-Correlation-ID header
The correlation id for the request that was processed.

id string uuid required
a unique identifier for this particular occurrence of the problem.
links object nullable
Present on an authentication or authorisation failure, and null otherwise.
- about string uri
  A link that leads to further details about this particular occurrence of the problem. When derefenced, this URI SHOULD return a human-readable description of the error.
- type string uri
  A link that identifies the type of error that this particular error is an instance of. This URI SHOULD be dereferencable to a human-readable explanation of the general error.
code string required
An application-specific error code, expressed as a string value. Key on this rather than on title or detail, which are written for a person. A rejection at the transport level uses the status name, one of BadRequest, Unauthorized, Forbidden, NotFound, NotAllowed, Conflict, UnsupportedMediaType, BadGateway or InternalServerError. An operation refusing a request on its own rules returns a code of its own.
title string required
A short, human-readable summary of the problem that SHOULD NOT change from occurrence to occurrence of the problem, except for purposes of localization.
detail string required
A human-readable explanation specific to this occurrence of the problem. Like title, this field’s value can be localized.
source object nullable
Where in the request the problem was found. All three keys are present whenever source is, with the ones that do not apply set to null. source itself is null where the failure is not about a part of the request.
- pointer string json-pointer nullable
  a JSON Pointer RFC6901 to the value in the request document that caused the error [e.g. "/data" for a primary data object, or "/data/attributes/title" for a specific attribute]. This MUST point to a value in the request document that exists; if it doesn’t, the client SHOULD simply ignore the pointer.
- parameter string nullable
  A string indicating which URI query parameter caused the error.
- header string nullable
  A string indicating the name of a single request header which caused the error.
meta object nullable
A meta object containing non-standard meta-information about the error. Null where the request carried no X-Correlation-ID, and on an authentication failure, which does not echo it.
- correlationId string
  The X-Correlation-ID sent with the request, echoed back so it can be quoted to support. Absent when the request carried no correlation header.

A field in the request body did not validate

{
  "id": "3a6c9e01-5f2b-4d8a-9c47-1e0b7d5a2f83",
  "links": null,
  "code": "BadRequest",
  "title": "Bad Request",
  "detail": "amount: Amount must be greater than 0",
  "source": {
    "pointer": "/amount",
    "parameter": null,
    "header": null
  },
  "meta": {
    "correlationId": "497f6eca-6276-4993-bfeb-53cbbbba6f08"
  }
}

401 Unauthorised.

X-Correlation-ID header
The correlation id for the request that was processed.

id string uuid required
a unique identifier for this particular occurrence of the problem.
links object nullable
Present on an authentication or authorisation failure, and null otherwise.
- about string uri
  A link that leads to further details about this particular occurrence of the problem. When derefenced, this URI SHOULD return a human-readable description of the error.
- type string uri
  A link that identifies the type of error that this particular error is an instance of. This URI SHOULD be dereferencable to a human-readable explanation of the general error.
code string required
An application-specific error code, expressed as a string value. Key on this rather than on title or detail, which are written for a person. A rejection at the transport level uses the status name, one of BadRequest, Unauthorized, Forbidden, NotFound, NotAllowed, Conflict, UnsupportedMediaType, BadGateway or InternalServerError. An operation refusing a request on its own rules returns a code of its own.
title string required
A short, human-readable summary of the problem that SHOULD NOT change from occurrence to occurrence of the problem, except for purposes of localization.
detail string required
A human-readable explanation specific to this occurrence of the problem. Like title, this field’s value can be localized.
source object nullable
Where in the request the problem was found. All three keys are present whenever source is, with the ones that do not apply set to null. source itself is null where the failure is not about a part of the request.
- pointer string json-pointer nullable
  a JSON Pointer RFC6901 to the value in the request document that caused the error [e.g. "/data" for a primary data object, or "/data/attributes/title" for a specific attribute]. This MUST point to a value in the request document that exists; if it doesn’t, the client SHOULD simply ignore the pointer.
- parameter string nullable
  A string indicating which URI query parameter caused the error.
- header string nullable
  A string indicating the name of a single request header which caused the error.
meta object nullable
A meta object containing non-standard meta-information about the error. Null where the request carried no X-Correlation-ID, and on an authentication failure, which does not echo it.
- correlationId string
  The X-Correlation-ID sent with the request, echoed back so it can be quoted to support. Absent when the request carried no correlation header.

No usable access token on the request

{
  "id": "1cecc2b7-1c29-418a-b26a-bf7546926083",
  "links": {
    "about": "https://ozow.stoplight.io/docs/one-api/zi18vomr0jm8c-generate-authentication-token",
    "type": "https://tools.ietf.org/html/rfc7235#section-3.1"
  },
  "code": "Unauthorized",
  "title": "Unauthorized Request",
  "detail": "Authorization header is missing or invalid.",
  "source": {
    "pointer": null,
    "parameter": null,
    "header": "Authorization"
  },
  "meta": null
}

403 Forbidden.

X-Correlation-ID header
The correlation id for the request that was processed.

id string uuid required
a unique identifier for this particular occurrence of the problem.
links object nullable
Present on an authentication or authorisation failure, and null otherwise.
- about string uri
  A link that leads to further details about this particular occurrence of the problem. When derefenced, this URI SHOULD return a human-readable description of the error.
- type string uri
  A link that identifies the type of error that this particular error is an instance of. This URI SHOULD be dereferencable to a human-readable explanation of the general error.
code string required
An application-specific error code, expressed as a string value. Key on this rather than on title or detail, which are written for a person. A rejection at the transport level uses the status name, one of BadRequest, Unauthorized, Forbidden, NotFound, NotAllowed, Conflict, UnsupportedMediaType, BadGateway or InternalServerError. An operation refusing a request on its own rules returns a code of its own.
title string required
A short, human-readable summary of the problem that SHOULD NOT change from occurrence to occurrence of the problem, except for purposes of localization.
detail string required
A human-readable explanation specific to this occurrence of the problem. Like title, this field’s value can be localized.
source object nullable
Where in the request the problem was found. All three keys are present whenever source is, with the ones that do not apply set to null. source itself is null where the failure is not about a part of the request.
- pointer string json-pointer nullable
  a JSON Pointer RFC6901 to the value in the request document that caused the error [e.g. "/data" for a primary data object, or "/data/attributes/title" for a specific attribute]. This MUST point to a value in the request document that exists; if it doesn’t, the client SHOULD simply ignore the pointer.
- parameter string nullable
  A string indicating which URI query parameter caused the error.
- header string nullable
  A string indicating the name of a single request header which caused the error.
meta object nullable
A meta object containing non-standard meta-information about the error. Null where the request carried no X-Correlation-ID, and on an authentication failure, which does not echo it.
- correlationId string
  The X-Correlation-ID sent with the request, echoed back so it can be quoted to support. Absent when the request carried no correlation header.

The token is valid but lacks the scope the operation needs

{
  "id": "c47a2e08-9b31-4f6d-85a0-7e2c1d9f3b56",
  "links": {
    "about": "https://ozow.stoplight.io/docs/one-api/zi18vomr0jm8c-generate-authentication-token",
    "type": "https://tools.ietf.org/html/rfc7235#section-3.1"
  },
  "code": "Forbidden",
  "title": "Forbidden Request",
  "detail": "Request is forbidden, most likely scope does not match required scope to perform requested action.",
  "source": {
    "pointer": null,
    "parameter": null,
    "header": "Authorization"
  },
  "meta": {
    "correlationId": "497f6eca-6276-4993-bfeb-53cbbbba6f08"
  }
}

409 Conflict.

X-Correlation-ID header
The correlation id for the request that was processed.

id string uuid required
a unique identifier for this particular occurrence of the problem.
links object nullable
Present on an authentication or authorisation failure, and null otherwise.
- about string uri
  A link that leads to further details about this particular occurrence of the problem. When derefenced, this URI SHOULD return a human-readable description of the error.
- type string uri
  A link that identifies the type of error that this particular error is an instance of. This URI SHOULD be dereferencable to a human-readable explanation of the general error.
code string required
An application-specific error code, expressed as a string value. Key on this rather than on title or detail, which are written for a person. A rejection at the transport level uses the status name, one of BadRequest, Unauthorized, Forbidden, NotFound, NotAllowed, Conflict, UnsupportedMediaType, BadGateway or InternalServerError. An operation refusing a request on its own rules returns a code of its own.
title string required
A short, human-readable summary of the problem that SHOULD NOT change from occurrence to occurrence of the problem, except for purposes of localization.
detail string required
A human-readable explanation specific to this occurrence of the problem. Like title, this field’s value can be localized.
source object nullable
Where in the request the problem was found. All three keys are present whenever source is, with the ones that do not apply set to null. source itself is null where the failure is not about a part of the request.
- pointer string json-pointer nullable
  a JSON Pointer RFC6901 to the value in the request document that caused the error [e.g. "/data" for a primary data object, or "/data/attributes/title" for a specific attribute]. This MUST point to a value in the request document that exists; if it doesn’t, the client SHOULD simply ignore the pointer.
- parameter string nullable
  A string indicating which URI query parameter caused the error.
- header string nullable
  A string indicating the name of a single request header which caused the error.
meta object nullable
A meta object containing non-standard meta-information about the error. Null where the request carried no X-Correlation-ID, and on an authentication failure, which does not echo it.
- correlationId string
  The X-Correlation-ID sent with the request, echoed back so it can be quoted to support. Absent when the request carried no correlation header.

The idempotency key was reused with a different body

{
  "id": "2f8b6d40-1c7e-49a5-b03f-8d5a2e1c9704",
  "links": null,
  "code": "Conflict",
  "title": "Conflict",
  "detail": "Idempotency key and request data do not match a previous request.",
  "source": {
    "pointer": null,
    "parameter": null,
    "header": "Idempotency-Key"
  },
  "meta": {
    "correlationId": "497f6eca-6276-4993-bfeb-53cbbbba6f08"
  }
}

500 Internal Server Error.

X-Correlation-ID header
The correlation id for the request that was processed.

id string uuid required
a unique identifier for this particular occurrence of the problem.
links object nullable
Present on an authentication or authorisation failure, and null otherwise.
- about string uri
  A link that leads to further details about this particular occurrence of the problem. When derefenced, this URI SHOULD return a human-readable description of the error.
- type string uri
  A link that identifies the type of error that this particular error is an instance of. This URI SHOULD be dereferencable to a human-readable explanation of the general error.
code string required
An application-specific error code, expressed as a string value. Key on this rather than on title or detail, which are written for a person. A rejection at the transport level uses the status name, one of BadRequest, Unauthorized, Forbidden, NotFound, NotAllowed, Conflict, UnsupportedMediaType, BadGateway or InternalServerError. An operation refusing a request on its own rules returns a code of its own.
title string required
A short, human-readable summary of the problem that SHOULD NOT change from occurrence to occurrence of the problem, except for purposes of localization.
detail string required
A human-readable explanation specific to this occurrence of the problem. Like title, this field’s value can be localized.
source object nullable
Where in the request the problem was found. All three keys are present whenever source is, with the ones that do not apply set to null. source itself is null where the failure is not about a part of the request.
- pointer string json-pointer nullable
  a JSON Pointer RFC6901 to the value in the request document that caused the error [e.g. "/data" for a primary data object, or "/data/attributes/title" for a specific attribute]. This MUST point to a value in the request document that exists; if it doesn’t, the client SHOULD simply ignore the pointer.
- parameter string nullable
  A string indicating which URI query parameter caused the error.
- header string nullable
  A string indicating the name of a single request header which caused the error.
meta object nullable
A meta object containing non-standard meta-information about the error. Null where the request carried no X-Correlation-ID, and on an authentication failure, which does not echo it.
- correlationId string
  The X-Correlation-ID sent with the request, echoed back so it can be quoted to support. Absent when the request carried no correlation header.

The request failed on the Ozow side

{
  "id": "9e0d5a83-6b24-4c19-8f7a-2d1b3e6c0a97",
  "links": null,
  "code": "InternalServerError",
  "title": "Internal Server Error",
  "detail": "Error occurred while processing request.",
  "source": {
    "pointer": "/data",
    "parameter": null,
    "header": null
  },
  "meta": {
    "correlationId": "497f6eca-6276-4993-bfeb-53cbbbba6f08"
  }
}

Guides

Request

curl -X POST 'https://one.ozow.com/v1/webhooks' \
  -H 'Authorization: Bearer YOUR_ACCESS_TOKEN' \
  -H 'Content-Type: application/json' \
  -H 'Idempotency-Key: string' \
  -H 'X-Correlation-ID: 00000000-0000-0000-0000-000000000000' \
  -d '{
  "endpoint": "https://example.com/endpoint",
  "eventType": "transaction.complete",
  "messageType": "thin"
}'

using var client = new HttpClient();

var request = new HttpRequestMessage(HttpMethod.Post, "https://one.ozow.com/v1/webhooks");
request.Headers.Add("Authorization", "Bearer YOUR_ACCESS_TOKEN");
request.Headers.Add("Idempotency-Key", "string");
request.Headers.Add("X-Correlation-ID", "00000000-0000-0000-0000-000000000000");

request.Content = new StringContent(@"{
  ""endpoint"": ""https://example.com/endpoint"",
  ""eventType"": ""transaction.complete"",
  ""messageType"": ""thin""
}", Encoding.UTF8, "application/json");

var response = await client.SendAsync(request);
var body = await response.Content.ReadAsStringAsync();

<?php
$curl = curl_init();

curl_setopt_array($curl, [
    CURLOPT_URL => 'https://one.ozow.com/v1/webhooks',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_CUSTOMREQUEST => 'POST',
    CURLOPT_HTTPHEADER => [
        'Authorization: Bearer YOUR_ACCESS_TOKEN',
        'Content-Type: application/json',
        'Idempotency-Key: string',
        'X-Correlation-ID: 00000000-0000-0000-0000-000000000000',
    ],
    CURLOPT_POSTFIELDS => <<<'JSON'
{
  "endpoint": "https://example.com/endpoint",
  "eventType": "transaction.complete",
  "messageType": "thin"
}
JSON,
]);

$response = curl_exec($curl);
curl_close($curl);

const response = await fetch("https://one.ozow.com/v1/webhooks", {
  method: "POST",
  headers: {
    "Authorization": "Bearer YOUR_ACCESS_TOKEN",
    "Content-Type": "application/json",
    "Idempotency-Key": "string",
    "X-Correlation-ID": "00000000-0000-0000-0000-000000000000",
  },
  body: JSON.stringify({
    "endpoint": "https://example.com/endpoint",
    "eventType": "transaction.complete",
    "messageType": "thin"
  }),
});

const data = await response.json();

import requests

headers = {
    "Authorization": "Bearer YOUR_ACCESS_TOKEN",
    "Content-Type": "application/json",
    "Idempotency-Key": "string",
    "X-Correlation-ID": "00000000-0000-0000-0000-000000000000",
}

payload = {
    "endpoint": "https://example.com/endpoint",
    "eventType": "transaction.complete",
    "messageType": "thin",
}

response = requests.post(
    "https://one.ozow.com/v1/webhooks",
    headers=headers,
    json=payload,
)

Response

OK. The request has been accepted.

{
  "id": "3fa85f64-5717-4562-b3fc-2c963f66afa2",
  "endpoint": "https://example.com/endpoint",
  "eventType": "transaction.complete",
  "messageType": "thin"
}

Built from the response schema. Values are placeholders, not real data.

Created. The request has been accepted.

{
  "id": "3fa85f64-5717-4562-b3fc-2c963f66afa2",
  "endpoint": "https://example.com/endpoint",
  "eventType": "transaction.complete",
  "messageType": "thin"
}

Built from the response schema. Values are placeholders, not real data.

Bad Request.

{
  "id": "3a6c9e01-5f2b-4d8a-9c47-1e0b7d5a2f83",
  "links": null,
  "code": "BadRequest",
  "title": "Bad Request",
  "detail": "amount: Amount must be greater than 0",
  "source": {
    "pointer": "/amount",
    "parameter": null,
    "header": null
  },
  "meta": {
    "correlationId": "497f6eca-6276-4993-bfeb-53cbbbba6f08"
  }
}

Unauthorised.

{
  "id": "1cecc2b7-1c29-418a-b26a-bf7546926083",
  "links": {
    "about": "https://ozow.stoplight.io/docs/one-api/zi18vomr0jm8c-generate-authentication-token",
    "type": "https://tools.ietf.org/html/rfc7235#section-3.1"
  },
  "code": "Unauthorized",
  "title": "Unauthorized Request",
  "detail": "Authorization header is missing or invalid.",
  "source": {
    "pointer": null,
    "parameter": null,
    "header": "Authorization"
  },
  "meta": null
}

Forbidden.

{
  "id": "c47a2e08-9b31-4f6d-85a0-7e2c1d9f3b56",
  "links": {
    "about": "https://ozow.stoplight.io/docs/one-api/zi18vomr0jm8c-generate-authentication-token",
    "type": "https://tools.ietf.org/html/rfc7235#section-3.1"
  },
  "code": "Forbidden",
  "title": "Forbidden Request",
  "detail": "Request is forbidden, most likely scope does not match required scope to perform requested action.",
  "source": {
    "pointer": null,
    "parameter": null,
    "header": "Authorization"
  },
  "meta": {
    "correlationId": "497f6eca-6276-4993-bfeb-53cbbbba6f08"
  }
}

Conflict.

{
  "id": "2f8b6d40-1c7e-49a5-b03f-8d5a2e1c9704",
  "links": null,
  "code": "Conflict",
  "title": "Conflict",
  "detail": "Idempotency key and request data do not match a previous request.",
  "source": {
    "pointer": null,
    "parameter": null,
    "header": "Idempotency-Key"
  },
  "meta": {
    "correlationId": "497f6eca-6276-4993-bfeb-53cbbbba6f08"
  }
}

Internal Server Error.

{
  "id": "9e0d5a83-6b24-4c19-8f7a-2d1b3e6c0a97",
  "links": null,
  "code": "InternalServerError",
  "title": "Internal Server Error",
  "detail": "Error occurred while processing request.",
  "source": {
    "pointer": "/data",
    "parameter": null,
    "header": null
  },
  "meta": {
    "correlationId": "497f6eca-6276-4993-bfeb-53cbbbba6f08"
  }
}