Struct Workflow 

pub struct Workflow {

    pub id: String,
    pub name: String,
    pub priority: u32,
    pub description: Option<String>,
    pub condition: Value,
    pub tasks: Vec<Task>,
    pub continue_on_error: bool,
    pub channel: String,
    pub version: u32,
    pub status: WorkflowStatus,
    pub rollout: Option<Rollout>,
    pub tags: Vec<String>,
    pub created_at: Option<DateTime<Utc>>,
    pub updated_at: Option<DateTime<Utc>>,
    /* private fields */
}

Workflow represents a collection of tasks that execute sequentially (also known as a Rule in rules-engine terminology).

Conditions are evaluated against the full message context, including data, metadata, and temp_data fields.

Fields

id: String

name: String

priority: u32

description: Option<String>

condition: Value

tasks: Vec<Task>

continue_on_error: bool

channel: String

Channel for routing (default: “default”)

version: u32

Version number for rule versioning (default: 1)

status: WorkflowStatus

Workflow status — Active, Paused, or Archived (default: Active)

rollout: Option<Rollout>

Traffic split for this workflow. None (the default) means the workflow is not part of a split and runs for every message.

A workflow with a rollout is skipped when the message’s crate::Message::routing_bucket falls outside the range. A message with no bucket is admitted — see Rollout.

tags: Vec<String>

Tags for categorization and filtering

created_at: Option<DateTime<Utc>>

Creation timestamp

updated_at: Option<DateTime<Utc>>

Last update timestamp

Implementations

impl Workflow

pub fn new() -> Self

pub fn rule(id: &str, name: &str, condition: Value, tasks: Vec<Task>) -> Self

Create a workflow (rule) with a condition and tasks.

This is a convenience constructor for the IFTTT-style rules engine pattern: IF condition THEN execute tasks.

Arguments

• id - Unique identifier for the rule
• name - Human-readable name
• condition - JSONLogic condition evaluated against the full context (data, metadata, temp_data)
• tasks - Actions to execute when the condition is met

pub fn from_json(json_str: &str) -> Result<Self>

Load workflow from JSON string

pub fn from_file<P: AsRef<Path>>(path: P) -> Result<Self>

Load workflow from JSON file

pub fn validate(&self) -> Result<()>

Validate the workflow structure

impl Workflow

pub fn connector_refs(&self) -> impl Iterator<Item = ConnectorRef<'_>>

Every connector reference in this workflow, in task order.

Tasks whose function names no connector are skipped. One item is yielded per task, not per distinct connector: two tasks on the same connector yield two items. Callers wanting a distinct set collect one themselves.

Does not require a compiled workflow — this reads only deserialized fields, so it works on the output of Workflow::from_json before the engine has compiled it.

Which configs carry a connector is this crate’s fact; deriving it here rather than reimplementing the set downstream is the point.

Trait Implementations

impl Clone for Workflow

fn clone(&self) -> Workflow

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Workflow

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Workflow

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Workflow

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.