Filters API

Filters control which webhook events are forwarded through a route based on conditions applied to the payload.

Endpoints

Method	Path	Description
GET	`/api/filters`	List filters
POST	`/api/filters`	Create filter
GET	`/api/filters/{id}`	Get filter
PATCH	`/api/filters/{id}`	Update filter
DELETE	`/api/filters/{id}`	Delete filter

Filter Object

{
  "id": "flt_abc123",
  "name": "Push Events Only",
  "description": "Only forward push events from GitHub",
  "conditions": [
    {
      "field": "headers.X-GitHub-Event",
      "operator": "equals",
      "value": "push"
    }
  ],
  "logic": "AND",
  "routeCount": 2,
  "createdAt": "2024-01-01T00:00:00Z",
  "updatedAt": "2024-01-15T10:30:00Z"
}

Condition Object

Field	Type	Description
field	string	JSONPath to the field in payload or headers (e.g., `payload.action`, `headers.X-GitHub-Event`)
operator	string	Comparison operator (see below)
value	string	Value to compare against

Operators

Operator	Description	Example
`equals`	Exact match	`"push"`
`not_equals`	Not equal	`"delete"`
`contains`	String contains	`"release"`
`not_contains`	String does not contain	`"test"`
`starts_with`	String starts with	`"refs/heads/"`
`ends_with`	String ends with	`".json"`
`matches`	Regex match	`"^v\\d+\\.\\d+"`
`exists`	Field exists (value ignored)	—
`not_exists`	Field does not exist (value ignored)	—
`gt`	Greater than (numeric)	`"100"`
`gte`	Greater than or equal (numeric)	`"100"`
`lt`	Less than (numeric)	`"50"`
`lte`	Less than or equal (numeric)	`"50"`
`in`	Value in comma-separated list	`"push,pull_request,release"`
`not_in`	Value not in comma-separated list	`"bot,automated"`

Logic

Value	Description
`AND`	All conditions must match (default)
`OR`	Any condition must match

List Filters

GET /api/filters

Query Parameters

Parameter	Type	Description
page	number	Page number (default: 1)
pageSize	number	Items per page (default: 20, max: 100)
search	string	Search by name

Example

curl

curl https://api.hookbase.app/api/filters \
  -H "Authorization: Bearer whr_your_api_key"

Response

{
  "data": [
    {
      "id": "flt_abc123",
      "name": "Push Events Only",
      "conditions": [
        {
          "field": "headers.X-GitHub-Event",
          "operator": "equals",
          "value": "push"
        }
      ],
      "logic": "AND",
      "routeCount": 2
    }
  ],
  "pagination": {
    "total": 3,
    "page": 1,
    "pageSize": 20
  }
}

Create Filter

POST /api/filters

Request Body

Field	Type	Required	Description
name	string	Yes	Display name
conditions	array	Yes	Array of condition objects
description	string	No	Optional description
logic	string	No	`AND` or `OR` (default: `AND`)

Example

curl

curl -X POST https://api.hookbase.app/api/filters \
  -H "Authorization: Bearer whr_your_api_key" \
  -H "Content-Type: application/json" \
  -d '{
    "name": "Production Push Events",
    "description": "Only forward push events to main branch",
    "conditions": [
      {
        "field": "headers.X-GitHub-Event",
        "operator": "equals",
        "value": "push"
      },
      {
        "field": "payload.ref",
        "operator": "equals",
        "value": "refs/heads/main"
      }
    ],
    "logic": "AND"
  }'

Response

{
  "id": "flt_new123",
  "name": "Production Push Events",
  "description": "Only forward push events to main branch",
  "conditions": [
    {
      "field": "headers.X-GitHub-Event",
      "operator": "equals",
      "value": "push"
    },
    {
      "field": "payload.ref",
      "operator": "equals",
      "value": "refs/heads/main"
    }
  ],
  "logic": "AND",
  "routeCount": 0,
  "createdAt": "2024-01-15T10:30:00Z",
  "updatedAt": "2024-01-15T10:30:00Z"
}

Get Filter

GET /api/filters/{id}

Example

curl

curl https://api.hookbase.app/api/filters/flt_abc123 \
  -H "Authorization: Bearer whr_your_api_key"

Response

Returns the full filter object.

Update Filter

PATCH /api/filters/{id}

Request Body

All fields are optional. Only provided fields are updated.

Field	Type	Description
name	string	Display name
conditions	array	Array of condition objects (replaces existing)
description	string	Optional description
logic	string	`AND` or `OR`

Example

curl

curl -X PATCH https://api.hookbase.app/api/filters/flt_abc123 \
  -H "Authorization: Bearer whr_your_api_key" \
  -H "Content-Type: application/json" \
  -d '{
    "conditions": [
      {
        "field": "headers.X-GitHub-Event",
        "operator": "in",
        "value": "push,pull_request,release"
      }
    ]
  }'

Response

Returns the updated filter object.

Delete Filter

DELETE /api/filters/{id}

Warning

A filter cannot be deleted while it is assigned to active routes. Remove it from all routes first.

Example

curl

curl -X DELETE https://api.hookbase.app/api/filters/flt_abc123 \
  -H "Authorization: Bearer whr_your_api_key"

Response

204 No Content

Inline Filters vs Saved Filters

Routes support two approaches to filtering:

Saved filters — Create a filter via this API and reference it by filterId in the route. Reusable across multiple routes.
Inline filters — Define filterConditions and filterLogic directly on the route. Simpler for one-off conditions.

# Using a saved filter
curl -X POST .../routes \
  -d '{"name": "My Route", "sourceId": "src_1", "destinationIds": ["dst_1"], "filterId": "flt_abc123"}'
 
# Using inline conditions
curl -X POST .../routes \
  -d '{
    "name": "My Route",
    "sourceId": "src_1",
    "destinationIds": ["dst_1"],
    "filterConditions": [
      {"field": "headers.X-GitHub-Event", "operator": "equals", "value": "push"}
    ],
    "filterLogic": "AND"
  }'

Error Responses

400 Bad Request

Invalid condition:

{
  "error": "Bad Request",
  "message": "Invalid operator 'like'. Must be one of: equals, not_equals, contains, ...",
  "code": "INVALID_CONDITION"
}

409 Conflict

Filter in use:

{
  "error": "Conflict",
  "message": "Filter is assigned to 2 active routes",
  "code": "RESOURCE_IN_USE"
}

Filters Guide — Concepts and usage patterns
Routes API — Assign filters to routes