## API

| Method Name             | Request Type                     | Response Type                   | Description                                  |
|-------------------------|----------------------------------|-----------------------------------|----------------------------------------------|
| SubmitMessage           | Message                          | Message                           | Submits a Message to the node                 |
| SubmitBulkMessages      | SubmitBulkMessagesRequest        | SubmitBulkMessagesResponse       | Submits several Messages to the node         |
| ValidateMessage         | Message                          | ValidationResponse               | Validates a Message on the node without merging and gossiping |

## SubmitBulkMessagesRequest

| Field    | Type                          | Label    | Description                                             |
|----------|-------------------------------|----------|--------------------------------------------------------|
| messages | Message                       | repeated | An array of Messages to submit. All messages will be submitted, even if earlier ones fail |

## SubmitBulkMessagesResponse

| Field    | Type                          | Label    | Description                                             |
|----------|-------------------------------|----------|--------------------------------------------------------|
| messages | BulkMessageResponse           | repeated | An array of BulkMessageResponse, one for each submitted message indicating success or failure |

## BulkMessageResponse

| Field          | Type                   | Label   | Description                                            |
|----------------|------------------------|---------|-------------------------------------------------------|
| message        | Message                | oneOf   | The message if it was submitted successfully           |
| message_error  | MessageError           | oneOf   | Failure reason if the message was not submitted successfully |

## MessageError

| Field      | Type     | Label   | Description                                |
|------------|----------|---------|--------------------------------------------|
| hash       | bytes    |         | Message hash                               |
| errCode    | string   |         | Failure error code                         |
| message    | string   |         | Description of the failure reason         |

## ValidationResponse

| Field      | Type     | Label   | Description                                   |
|------------|----------|---------|-----------------------------------------------|
| valid      | boolean  |         | Whether the message is valid or not         |
| message    | Message  |         | The message being validated (same as request) |