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workflow.json
key
Domain-specific workflow identifier
{"type": "string", "minLength": 1}
workflow.json
name
Workflow name
{"type": "string", "minLength": 1}
workflow.json
description
Workflow description
{"type": "string"}
workflow.json
version
Workflow version
{"type": "string", "minLength": 1, "pattern": "^(0|[1-9]\\d*)\\.(0|[1-9]\\d*)\\.(0|[1-9]\\d*)(?:-((?:0|[1-9]\\d*|\\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\\.(?:0|[1-9]\\d*|\\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\\+([0-9a-zA-Z-]+(?:\\.[0-9a-zA-Z-]+)*))?$"}
workflow.json
annotations
List of helpful terms describing the workflows intended purpose, subject areas, or other important qualities
{"type": "array", "minItems": 1, "items": {"type": "string"}, "additionalItems": false}
workflow.json
constants
URI to a resource containing constants data (json or yaml)
{"type": "string", "format": "uri"}
workflow.json
constants
Workflow constants data (object type)
{"type": "object"}
workflow.json
specVersion
Serverless Workflow schema version
{"type": "string", "minLength": 1}
workflow.json
expressionLang
Identifies the expression language used for workflow expressions. Default is 'jq'
{"type": "string", "default": "jq", "minLength": 1}
workflow.json
keepActive
If 'true', workflow instances is not terminated when there are no active execution paths. Instance can be terminated via 'terminate end definition' or reaching defined 'workflowExecTimeout'
{"type": "boolean", "default": false}
workflow.json
autoRetries
If set to true, actions should automatically be retried on unchecked errors. Default is false
{"type": "boolean", "default": false}
workflow.json
states
State definitions
{"type": "array", "items": {"anyOf": [{}, {}, {}, {}, {}, {}, {}, {}]}, "additionalItems": false, "minItems": 1}
workflow.json
before
Amount of time (ISO 8601 duration format) to sleep before function/subflow invocation. Does not apply if 'eventRef' is defined.
{"type": "string"}
workflow.json
after
Amount of time (ISO 8601 duration format) to sleep after function/subflow invocation. Does not apply if 'eventRef' is defined.
{"type": "string"}
workflow.json
crondef
Cron expression defining when workflow instances should be created (automatically)
{"type": "string", "minLength": 1}
workflow.json
expression
Repeating interval (cron expression) describing when the workflow instance should be created
{"type": "string", "minLength": 1}
workflow.json
validUntil
Specific date and time (ISO 8601 format) when the cron expression invocation is no longer valid
{"type": "string"}
workflow.json
continueasdef
Unique id of the workflow to be continue execution as. Entire state data is passed as data input to next execution
{"type": "string", "minLength": 1}
workflow.json
workflowId
Unique id of the workflow to continue execution as
{"type": "string"}
workflow.json
version
Version of the workflow to continue execution as
{"type": "string", "minLength": 1, "pattern": "^(0|[1-9]\\d*)\\.(0|[1-9]\\d*)\\.(0|[1-9]\\d*)(?:-((?:0|[1-9]\\d*|\\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\\.(?:0|[1-9]\\d*|\\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\\+([0-9a-zA-Z-]+(?:\\.[0-9a-zA-Z-]+)*))?$"}
workflow.json
data
If string type, an expression which selects parts of the states data output to become the workflow data input of continued execution. If object type, a custom object to become the workflow data input of the continued execution
{"type": ["string", "object"]}
workflow.json
workflowExecTimeout
Workflow execution timeout to be used by the workflow continuing execution. Overwrites any specific settings set by that workflow
{}
workflow.json
transition
Name of state to transition to
{"type": "string", "minLength": 1}
workflow.json
transition
Function Reference
{"type": "object", "properties": {"nextState": {"type": "string", "minLength": 1}, "produceEvents": {"type": "array", "items": {"type": "object"}, "additionalItems": false}, "compensate": {"type": "boolean", "default": false}}, "additionalProperties": false, "required": ["nextState"]}
workflow.json
nextState
Name of state to transition to
{"type": "string", "minLength": 1}
workflow.json
produceEvents
Array of events to be produced before the transition happens
{"type": "array", "items": {"type": "object"}, "additionalItems": false}
workflow.json
compensate
If set to true, triggers workflow compensation when before this transition is taken. Default is false
{"type": "boolean", "default": false}
workflow.json
errorRef
Reference to a unique workflow error definition. Used of errorRefs is not used
{"type": "string", "minLength": 1}
workflow.json
errorRefs
References one or more workflow error definitions. Used if errorRef is not used
{"type": "array", "minItems": 1, "items": {"type": "string"}, "additionalItems": false}
workflow.json
transition
Transition to next state to handle the error.
{}
workflow.json
end
End workflow execution in case of this error.
{}
workflow.json
eventRefs
References one or more unique event names in the defined workflow events
{"type": "array", "minItems": 1, "items": {"type": "string"}, "uniqueItems": true, "additionalItems": false}
workflow.json
actionMode
Specifies how actions are to be performed (in sequence or in parallel)
{"type": "string", "enum": ["sequential", "parallel"], "default": "sequential"}
workflow.json
actions
Actions to be performed if expression matches
{"type": "array", "items": {"type": "object"}, "additionalItems": false}
workflow.json
eventDataFilter
Event data filter
{}
workflow.json
name
Unique action definition name
{"type": "string"}
workflow.json
functionRef
References a function to be invoked
{}
workflow.json
eventRef
References a `produce` and `consume` reusable event definitions
{}
workflow.json
subFlowRef
References a sub-workflow to invoke
{}
workflow.json
sleep
Defines time periods workflow execution should sleep before / after function execution
{}
workflow.json
retryRef
References a defined workflow retry definition. If not defined the default retry policy is assumed
{"type": "string"}
workflow.json
nonRetryableErrors
List of unique references to defined workflow errors for which the action should not be retried. Used only when `autoRetries` is set to `true`
{"type": "array", "minItems": 1, "items": {"type": "string"}, "additionalItems": false}
workflow.json
retryableErrors
List of unique references to defined workflow errors for which the action should be retried. Used only when `autoRetries` is set to `false`
{"type": "array", "minItems": 1, "items": {"type": "string"}, "additionalItems": false}
workflow.json
actionDataFilter
Action data filter
{}
workflow.json
condition
Expression, if defined, must evaluate to true for this action to be performed. If false, action is disregarded
{"type": "string", "minLength": 1}
workflow.json
functionref
Name of the referenced function
{"type": "string", "minLength": 1}
workflow.json
functionref
Function Reference
{"type": "object", "properties": {"refName": {"type": "string"}, "arguments": {"type": "object"}, "selectionSet": {"type": "string"}, "invoke": {"type": "string", "enum": ["sync", "async"], "default": "sync"}}, "additionalProperties": false, "required": ["refName"]}
workflow.json
refName
Name of the referenced function
{"type": "string"}
workflow.json
arguments
Function arguments/inputs
{"type": "object"}
workflow.json
selectionSet
Only used if function type is 'graphql'. A string containing a valid GraphQL selection set
{"type": "string"}
workflow.json
invoke
Specifies if the function should be invoked sync or async
{"type": "string", "enum": ["sync", "async"], "default": "sync"}
workflow.json
eventref
Event References
{"type": "object", "properties": {"produceEventRef": {"type": "string"}, "consumeEventRef": {"type": "string"}, "consumeEventTimeout": {"type": "string"}, "data": {"type": ["string", "object"]}, "contextAttributes": {"type": "object", "additionalProperties": {"type": "string"}}}, "additionalProperties": false, "required": ["produceEventRef"]}
workflow.json
produceEventRef
Reference to the unique name of a 'produced' event definition
{"type": "string"}
workflow.json
consumeEventRef
Reference to the unique name of a 'consumed' event definition
{"type": "string"}
workflow.json
consumeEventTimeout
Maximum amount of time (ISO 8601 format) to wait for the result event. If not defined it should default to the actionExecutionTimeout
{"type": "string"}
workflow.json
data
If string type, an expression which selects parts of the states data output to become the data (payload) of the event referenced by 'produceEventRef'. If object type, a custom object to become the data (payload) of the event referenced by 'produceEventRef'.
{"type": ["string", "object"]}
workflow.json
contextAttributes
Add additional extension context attributes to the produced event
{"type": "object", "additionalProperties": {"type": "string"}}
workflow.json
subflowref
Unique id of the sub-workflow to be invoked
{"type": "string", "minLength": 1}
workflow.json
subflowref
Specifies a sub-workflow to be invoked
{"type": "object", "properties": {"workflowId": {"type": "string"}, "version": {"type": "string", "minLength": 1, "pattern": "^(0|[1-9]\\d*)\\.(0|[1-9]\\d*)\\.(0|[1-9]\\d*)(?:-((?:0|[1-9]\\d*|\\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\\.(?:0|[1-9]\\d*|\\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\\+([0-9a-zA-Z-]+(?:\\.[0-9a-zA-Z-]+)*))?$"}, "onParentComplete": {"type": "string", "enum": ["continue", "terminate"], "default": "terminate"}, "invoke": {"type": "string", "enum": ["sync", "async"], "default": "sync"}}, "required": ["workflowId"]}
workflow.json
workflowId
Unique id of the sub-workflow to be invoked
{"type": "string"}
workflow.json
version
Version of the sub-workflow to be invoked
{"type": "string", "minLength": 1, "pattern": "^(0|[1-9]\\d*)\\.(0|[1-9]\\d*)\\.(0|[1-9]\\d*)(?:-((?:0|[1-9]\\d*|\\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\\.(?:0|[1-9]\\d*|\\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\\+([0-9a-zA-Z-]+(?:\\.[0-9a-zA-Z-]+)*))?$"}
workflow.json
onParentComplete
If invoke is 'async', specifies how subflow execution should behave when parent workflow completes. Default is 'terminate'
{"type": "string", "enum": ["continue", "terminate"], "default": "terminate"}
workflow.json
invoke
Specifies if the subflow should be invoked sync or async
{"type": "string", "enum": ["sync", "async"], "default": "sync"}
workflow.json
branch
Branch Definition
{"type": "object", "properties": {"name": {"type": "string"}, "timeouts": {"type": "object", "properties": {"actionExecTimeout": {}, "branchExecTimeout": {}}, "required": []}, "actions": {"type": "array", "items": {"type": "object"}, "additionalItems": false}}, "additionalProperties": false, "required": ["name", "actions"]}
workflow.json
name
Branch name
{"type": "string"}
workflow.json
timeouts
State specific timeouts
{"type": "object", "properties": {"actionExecTimeout": {}, "branchExecTimeout": {}}, "required": []}
workflow.json
actions
Actions to be executed in this branch
{"type": "array", "items": {"type": "object"}, "additionalItems": false}
workflow.json
sleepstate
Causes the workflow execution to sleep for a specified duration
{"type": "object", "properties": {"name": {"type": "string"}, "type": {"type": "string", "const": "sleep"}, "end": {}, "duration": {"type": "string"}, "transition": {}, "metadata": {}}, "additionalProperties": false, "oneOf": [{"required": ["name", "type", "duration", "end"]}, {"required": ["name", "type", "duration", "transition"]}]}
workflow.json
name
State name
{"type": "string"}
workflow.json
type
State type
{"type": "string", "const": "sleep"}
workflow.json
end
State end definition
{}
workflow.json
duration
Duration (ISO 8601 duration format) to sleep
{"type": "string"}
workflow.json
transition
Next transition of the workflow after the workflow sleep
{}
workflow.json
eventstate
This state is used to wait for events from event sources, then consumes them and invoke one or more actions to run in sequence or parallel
{"type": "object", "properties": {"name": {"type": "string"}, "type": {"type": "string", "const": "event"}, "exclusive": {"type": "boolean", "default": true}, "onEvents": {"type": "array", "items": {"type": "object"}, "additionalItems": false}, "timeouts": {"type": "object", "properties": {"stateExecTimeout": {}, "actionExecTimeout": {}, "eventTimeout": {}}, "required": []}, "stateDataFilter": {}, "onErrors": {"type": "array", "items": {"type": "object"}, "additionalItems": false}, "transition": {}, "end": {}, "compensatedBy": {"type": "string", "minLength": 1}, "metadata": {}}, "additionalProperties": false, "oneOf": [{"required": ["name", "type", "onEvents", "end"]}, {"required": ["name", "type", "onEvents", "transition"]}]}
workflow.json
name
State name
{"type": "string"}
workflow.json
type
State type
{"type": "string", "const": "event"}
workflow.json
exclusive
If true consuming one of the defined events causes its associated actions to be performed. If false all of the defined events must be consumed in order for actions to be performed
{"type": "boolean", "default": true}
workflow.json
onEvents
Define the events to be consumed and optional actions to be performed
{"type": "array", "items": {"type": "object"}, "additionalItems": false}
workflow.json
timeouts
State specific timeouts
{"type": "object", "properties": {"stateExecTimeout": {}, "actionExecTimeout": {}, "eventTimeout": {}}, "required": []}
workflow.json
stateDataFilter
State data filter
{}
workflow.json
onErrors
States error handling definitions
{"type": "array", "items": {"type": "object"}, "additionalItems": false}
workflow.json
transition
Next transition of the workflow after all the actions have been performed
{}
workflow.json
end
State end definition
{}
workflow.json
compensatedBy
Unique Name of a workflow state which is responsible for compensation of this state
{"type": "string", "minLength": 1}
workflow.json
operationstate
Defines actions be performed. Does not wait for incoming events
{"type": "object", "properties": {"name": {"type": "string"}, "type": {"type": "string", "const": "operation"}, "end": {}, "stateDataFilter": {}, "actionMode": {"type": "string", "enum": ["sequential", "parallel"], "default": "sequential"}, "actions": {"type": "array", "items": {"type": "object"}}, "timeouts": {"type": "object", "properties": {"stateExecTimeout": {}, "actionExecTimeout": {}}, "required": []}, "onErrors": {"type": "array", "items": {"type": "object"}, "additionalItems": false}, "transition": {}, "compensatedBy": {"type": "string", "minLength": 1}, "usedForCompensation": {"type": "boolean", "default": false}, "metadata": {}}, "additionalProperties": false, "if": {"properties": {"usedForCompensation": {"const": true}}, "required": ["usedForCompensation"]}, "then": {"required": ["name", "type", "actions"]}, "else": {"oneOf": [{"required": ["name", "type", "actions", "end"]}, {"required": ["name", "type", "actions", "transition"]}]}}
workflow.json
name
State name
{"type": "string"}
workflow.json
type
State type
{"type": "string", "const": "operation"}
workflow.json
end
State end definition
{}
workflow.json
stateDataFilter
State data filter
{}
workflow.json
actionMode
Specifies whether actions are performed in sequence or in parallel
{"type": "string", "enum": ["sequential", "parallel"], "default": "sequential"}
workflow.json
actions
Actions to be performed
{"type": "array", "items": {"type": "object"}}
workflow.json
timeouts
State specific timeouts
{"type": "object", "properties": {"stateExecTimeout": {}, "actionExecTimeout": {}}, "required": []}
workflow.json
onErrors
States error handling definitions
{"type": "array", "items": {"type": "object"}, "additionalItems": false}
workflow.json
transition
Next transition of the workflow after all the actions have been performed
{}
workflow.json
compensatedBy
Unique Name of a workflow state which is responsible for compensation of this state
{"type": "string", "minLength": 1}
workflow.json
usedForCompensation
If true, this state is used to compensate another state. Default is false
{"type": "boolean", "default": false}
workflow.json
parallelstate
Consists of a number of states that are executed in parallel
{"type": "object", "properties": {"name": {"type": "string"}, "type": {"type": "string", "const": "parallel"}, "end": {}, "stateDataFilter": {}, "timeouts": {"type": "object", "properties": {"stateExecTimeout": {}, "branchExecTimeout": {}}, "required": []}, "branches": {"type": "array", "items": {"type": "object"}, "additionalItems": false}, "completionType": {"type": "string", "enum": ["allOf", "atLeast"], "default": "allOf"}, "numCompleted": {"type": ["number", "string"], "minimum": 0, "minLength": 0}, "onErrors": {"type": "array", "items": {"type": "object"}, "additionalItems": false}, "transition": {}, "compensatedBy": {"type": "string", "minLength": 1}, "usedForCompensation": {"type": "boolean", "default": false}, "metadata": {}}, "additionalProperties": false, "if": {"properties": {"usedForCompensation": {"const": true}}, "required": ["usedForCompensation"]}, "then": {"required": ["name", "type", "branches"]}, "else": {"oneOf": [{"required": ["name", "type", "branches", "end"]}, {"required": ["name", "type", "branches", "transition"]}]}}
workflow.json
name
State name
{"type": "string"}
workflow.json
type
State type
{"type": "string", "const": "parallel"}
workflow.json
end
State end definition
{}