runway

Documentation

Overview

Package runway implements engine.Engine for the Runway API.

Video generation is async: POST /v1/image_to_video or /v1/text_to_video creates a task, then GET /v1/tasks/{id} polls for completion. Auth: Authorization: Bearer {key}, env RUNWAY_API_KEY. Requires header X-Runway-Version.

Index

• Constants
• Variables
• func ConfigSchema() []engine.ConfigField
• func ModelsByCapability() map[string][]string
• type Config
• type Engine
  • func New(cfg Config) *Engine
  • func (e *Engine) Capabilities() engine.Capability
  • func (e *Engine) Execute(ctx context.Context, g workflow.Graph) (engine.Result, error)
  • func (e *Engine) Resume(ctx context.Context, remoteID string) (engine.Result, error)

Constants

const (
	ModelGen4Turbo  = "gen4_turbo"
	ModelGen3ATurbo = "gen3a_turbo"
)

Model constants.

Variables

var (
	ErrMissingPrompt = errors.New("runway: missing prompt in workflow graph")
)

Functions

func ConfigSchema

func ConfigSchema() []engine.ConfigField

ConfigSchema returns the configuration fields required by the Runway engine.

func ModelsByCapability

func ModelsByCapability() map[string][]string

ModelsByCapability returns all known Runway models grouped by capability.

Types

type Config

type Config struct {
	APIKey            string
	BaseURL           string
	Model             string
	APIVersion        string
	HTTPClient        *http.Client
	WaitForCompletion bool
	PollInterval      time.Duration
	OnProgress        epoll.OnProgress
}

Config configures the Runway engine.

type Engine

type Engine struct {
	// contains filtered or unexported fields
}

Engine implements engine.Engine for Runway.

func New

func New(cfg Config) *Engine

New creates a Runway engine instance.

func (*Engine) Capabilities

func (e *Engine) Capabilities() engine.Capability

Capabilities implements engine.Describer.

func (*Engine) Execute

func (e *Engine) Execute(ctx context.Context, g workflow.Graph) (engine.Result, error)

Execute generates a video via the Runway API.

func (*Engine) Resume

func (e *Engine) Resume(ctx context.Context, remoteID string) (engine.Result, error)

Resume implements engine.Resumer — resumes polling a previously submitted task.