# Documentation ## API Endpoints Authentication happens via [HTTP basic auth](https://tools.ietf.org/html/rfc7617) ### api/backlog/ This endpoint returns full backlog for a single quassel buffer, centered around a certain message. **Parameters**: | Name | Type | Required | Description | | -------- | ------ | -------- | ----------------------------------------------------------------- | | `anchor` | Number | `true` | Index message for which to retrieve surrounding backlog | | `buffer` | Number | `true` | Chat/Buffer from which messages should be retrieved | | `before` | Number | `true` | Number of messages to load chronologically before the anchorpoint | | `after` | Number | `true` | Number of messages to load chronologically after the anchorpoint | ### api/search/ This endpoint returns search results across all buffers. **Parameters**: | Name | Type | Required | Description | | --------- | --------- | -------- | ------------------------------------------------------------------------------ | | `query` | String | `true` | Query to filter messages | | `since` | Timestamp | `false` | If set, only show messages received after this timestamp. Format: '1970-01-01' | | `before` | Timestamp | `false` | If set, only show messages received beforethis timestamp. Format: '1970-01-01' | | `buffer` | String | `false` | If set, only show messages if the name of the chat/buffer they are in matches | | `network` | String | `false` | If set, only show messages if the name of the network they are in matches | | `sender` | String | `false` | If set, only show messages if the nick!user@host of the sender matches | | `limit` | Number | `true` | Number of messages to return per buffer | ### api/searchbuffer/ This endpoint returns search results for a single quassel buffer. **Parameters**: | Name | Type | Required | Description | | --------- | --------- | -------- | ------------------------------------------------------------------------------ | | `query` | String | `true` | Query to filter messages | | `since` | Timestamp | `false` | If set, only show messages received after this timestamp. Format: '1970-01-01' | | `before` | Timestamp | `false` | If set, only show messages received beforethis timestamp. Format: '1970-01-01' | | `buffer` | Number | `true` | Id of the buffer to search in | | `sender` | String | `false` | If set, only show messages if the nick!user@host of the sender matches | | `offset` | Number | `true` | Number of results to skip (for pagination) | | `limit` | Number | `true` | Number of messages to return |