Introduction

LetsFlow · the workflow engine developers love

LetsFlow is a workflow engine for running processes, described in YAML or JSON.

YAML
JSON
JSON (full)
YAML
schema: "https://specs.letsflow.io/v0.3.0/scenario#"
title: My first scenario
actors:
user:
title: The user
actions:
complete:
title: Complete the process
states:
initial:
on: complete
goto: (success)
JSON
{
"schema": "https://specs.letsflow.io/v0.3.0/scenario#",
"title": "My first scenario",
"actors": {
"user": {
"title": "user"
}
},
"actions": {
"complete": {
"title": "Complete the process"
}
},
"states": {
"initial": {
"action": "complete",
"transition": "(success)"
}
}
}
JSON (full)
{
"$schema": "https://specs.letsflow.io/v0.3.0/scenario#",
"title": "My first scenario",
"actors": {
"user": {
"$schema": "https://specs.letsflow.io/v0.3.0/actor#",
"title": "user"
}
},
"actions": {
"complete": {
"title": "Complete the process",
"responses": {
"ok": {
"title": null,
"display": "always"
"update": [ ]
}
}
}
},
"states": {
"initial": {
"actions": [
"complete"
],
"transitions": [
{
"on": "*.*"
"goto": "(success)"
}
]
}
}
}

The scenario models a process as a fine state machine. The actors are persons, organizations or systems that are allowed to participate on the process by performing actions. Which actions can be performed depends on the current state of the process. After an action has been, the process will transition to a different state.

LetsFlow is developed by

https://ltonetwork.com