# Workflow

{% stepper %}
{% step %}

### Use the API endpoint

Use the following URL: <https://api.avangate.com/channel-manager/2.1/rpc/>
{% endstep %}

{% step %}

### Authenticate

Authenticate using the `login` method and create a session (connection).
{% endstep %}

{% step %}

### Set partner

{% endstep %}

{% step %}

### Invoke API methods

Throughout the lifetime of the session (max 10 minutes), you can invoke all 2Checkout API methods. To invoke methods, you need to send a request to 2Checkout. Read the Request object below.
{% endstep %}

{% step %}

### Receive responses

The 2Checkout system responds to all requests. Read the Response object below.
{% endstep %}
{% endstepper %}

## Response

Whenever you call an API method, 2Checkout replies with a response. The response is a single object serialized using JSON.

There are two types of response, with the properties detailed below.

### Valid response

```json
{
  "id" : <int identifier>,
  "jsonrpc" : 2.0,
  "response" : {<return object>}
}
```

### Valid response object

| Properties   | Type / Description                                                                                                           |
| ------------ | ---------------------------------------------------------------------------------------------------------------------------- |
| **jsonrpc**  | **Required (string)**                                                                                                        |
|              | JSON-RPC protocol version. Must be 2.0.                                                                                      |
| **id**       | **Required (int)**                                                                                                           |
|              | Mandatory identifier that you control, used to identify the request and the response. Use only integer values.               |
| **response** | **Required (object)**                                                                                                        |
|              | Provided on success (is not included if there was an error invoking the method). Actual value depends on the method invoked. |

### Invalid response

```json
{
  "id" : <int identifier>,
  "jsonrpc" : 2.0,
  "error" : { "code" : <int error code>, "message" : "<error message>"}
}
```

Invalid response object

| Properties  | Type / Description                                                                                                          |
| ----------- | --------------------------------------------------------------------------------------------------------------------------- |
| **jsonrpc** | **Required (string)**                                                                                                       |
|             | JSON-RPC protocol version. Must be 2.0.                                                                                     |
| **id**      | **Required (int)**                                                                                                          |
|             | Mandatory identifier that you control, used to identify the request and the response. Use only integer values.              |
| error       | **Required (object)**                                                                                                       |
|             | <p>C<strong>ode -</strong> Integer identifying the error. </p><p><strong>Message -</strong> Error description (string).</p> |

## Request

Calling API methods involves sending an API request to Avangate. The request object is detailed below.

```json
{
  "jsonrpc" : 2.0,
  "id" : <int identifier>,
  "method" : "<methodName>",
  "params" : [<parameters array>]
}
```

### Request object

| Properties  | Type / Description                                                                                                                                                                                                                                                                                                          |
| ----------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **jsonrpc** | **Required (string)** — JSON-RPC protocol version. Must be 2.0.                                                                                                                                                                                                                                                             |
| **id**      | **Required (int)** — Mandatory identifier that you control, used to identify the request and the response. Use only integer values.                                                                                                                                                                                         |
| **method**  | **Required (string)** — The name of the method invoked. Case sensitive.                                                                                                                                                                                                                                                     |
| **params**  | **Optional (object)** — An object/structure containing the parameters valid for invoking the method used. Parameters included into the RPC call need to be provided by-position using an Array (structured value). The values must be in the order expected by Avangate. At this point we don't support by-name parameters. |


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.2checkout.com/channel-manager-api/channel-manager-api/api-2.1/json-rpc-2.1/workflow.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.