# postback-api

This spec is for Postback-API

Version: 1.0.0

## Servers

```
https://in.treasuredata.com
```

## Download OpenAPI description

[postback-api](https://docs.treasuredata.com/_bundle/apis/postback/openapi.yaml)

## Other

### POST Postback API

 - [POST /postback/v3/event/{database_name}/{table_name}](https://docs.treasuredata.com/apis/postback/openapi/other/postpostbackapi.md): Send data in POST payload.
Every request must contain authentication information. Authentication can be provided in two ways:
1. In header with the X-TD-Write-Key:  format
2. In URL Path with the ?td_write_key= format

Note: Requests made with an invalid API key return a 200 HTTP status code. This behavior is intentional and ensures a fast response, preventing ingestion from being canceled due to slow response. After the response is returned, the endpoint performs asynchronous validations. If the API key is invalid, an authentication failure will be raised despite the initial 200 status.

In case both header and URL parameter are provided, the header takes precedence.