Create a Workflow
curl --request POST \
--url https://flowker.sandbox.lerian.net/v1/workflows \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"name": "Payment Notification Flow",
"description": "Receives a webhook trigger and logs the payment event.",
"nodes": [
{
"id": "trigger-1",
"type": "trigger",
"name": "Webhook Trigger",
"position": {
"x": 0,
"y": 0
},
"data": {
"triggerType": "webhook",
"path": "payments/received",
"method": "POST",
"input_contract": "open",
"format": "json"
}
},
{
"id": "log-event",
"type": "action",
"name": "Log Payment Event",
"position": {
"x": 200,
"y": 0
},
"data": {
"action": "log"
}
}
],
"edges": [
{
"id": "e1",
"source": "trigger-1",
"target": "log-event"
}
],
"metadata": {
"team": "payments",
"environment": "sandbox"
}
}
'import requests
url = "https://flowker.sandbox.lerian.net/v1/workflows"
payload = {
"name": "Payment Notification Flow",
"description": "Receives a webhook trigger and logs the payment event.",
"nodes": [
{
"id": "trigger-1",
"type": "trigger",
"name": "Webhook Trigger",
"position": {
"x": 0,
"y": 0
},
"data": {
"triggerType": "webhook",
"path": "payments/received",
"method": "POST",
"input_contract": "open",
"format": "json"
}
},
{
"id": "log-event",
"type": "action",
"name": "Log Payment Event",
"position": {
"x": 200,
"y": 0
},
"data": { "action": "log" }
}
],
"edges": [
{
"id": "e1",
"source": "trigger-1",
"target": "log-event"
}
],
"metadata": {
"team": "payments",
"environment": "sandbox"
}
}
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
body: JSON.stringify({
name: 'Payment Notification Flow',
description: 'Receives a webhook trigger and logs the payment event.',
nodes: [
{
id: 'trigger-1',
type: 'trigger',
name: 'Webhook Trigger',
position: {x: 0, y: 0},
data: {
triggerType: 'webhook',
path: 'payments/received',
method: 'POST',
input_contract: 'open',
format: 'json'
}
},
{
id: 'log-event',
type: 'action',
name: 'Log Payment Event',
position: {x: 200, y: 0},
data: {action: 'log'}
}
],
edges: [{id: 'e1', source: 'trigger-1', target: 'log-event'}],
metadata: {team: 'payments', environment: 'sandbox'}
})
};
fetch('https://flowker.sandbox.lerian.net/v1/workflows', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://flowker.sandbox.lerian.net/v1/workflows",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'name' => 'Payment Notification Flow',
'description' => 'Receives a webhook trigger and logs the payment event.',
'nodes' => [
[
'id' => 'trigger-1',
'type' => 'trigger',
'name' => 'Webhook Trigger',
'position' => [
'x' => 0,
'y' => 0
],
'data' => [
'triggerType' => 'webhook',
'path' => 'payments/received',
'method' => 'POST',
'input_contract' => 'open',
'format' => 'json'
]
],
[
'id' => 'log-event',
'type' => 'action',
'name' => 'Log Payment Event',
'position' => [
'x' => 200,
'y' => 0
],
'data' => [
'action' => 'log'
]
]
],
'edges' => [
[
'id' => 'e1',
'source' => 'trigger-1',
'target' => 'log-event'
]
],
'metadata' => [
'team' => 'payments',
'environment' => 'sandbox'
]
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://flowker.sandbox.lerian.net/v1/workflows"
payload := strings.NewReader("{\n \"name\": \"Payment Notification Flow\",\n \"description\": \"Receives a webhook trigger and logs the payment event.\",\n \"nodes\": [\n {\n \"id\": \"trigger-1\",\n \"type\": \"trigger\",\n \"name\": \"Webhook Trigger\",\n \"position\": {\n \"x\": 0,\n \"y\": 0\n },\n \"data\": {\n \"triggerType\": \"webhook\",\n \"path\": \"payments/received\",\n \"method\": \"POST\",\n \"input_contract\": \"open\",\n \"format\": \"json\"\n }\n },\n {\n \"id\": \"log-event\",\n \"type\": \"action\",\n \"name\": \"Log Payment Event\",\n \"position\": {\n \"x\": 200,\n \"y\": 0\n },\n \"data\": {\n \"action\": \"log\"\n }\n }\n ],\n \"edges\": [\n {\n \"id\": \"e1\",\n \"source\": \"trigger-1\",\n \"target\": \"log-event\"\n }\n ],\n \"metadata\": {\n \"team\": \"payments\",\n \"environment\": \"sandbox\"\n }\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Authorization", "Bearer <token>")
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://flowker.sandbox.lerian.net/v1/workflows")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"name\": \"Payment Notification Flow\",\n \"description\": \"Receives a webhook trigger and logs the payment event.\",\n \"nodes\": [\n {\n \"id\": \"trigger-1\",\n \"type\": \"trigger\",\n \"name\": \"Webhook Trigger\",\n \"position\": {\n \"x\": 0,\n \"y\": 0\n },\n \"data\": {\n \"triggerType\": \"webhook\",\n \"path\": \"payments/received\",\n \"method\": \"POST\",\n \"input_contract\": \"open\",\n \"format\": \"json\"\n }\n },\n {\n \"id\": \"log-event\",\n \"type\": \"action\",\n \"name\": \"Log Payment Event\",\n \"position\": {\n \"x\": 200,\n \"y\": 0\n },\n \"data\": {\n \"action\": \"log\"\n }\n }\n ],\n \"edges\": [\n {\n \"id\": \"e1\",\n \"source\": \"trigger-1\",\n \"target\": \"log-event\"\n }\n ],\n \"metadata\": {\n \"team\": \"payments\",\n \"environment\": \"sandbox\"\n }\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://flowker.sandbox.lerian.net/v1/workflows")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"name\": \"Payment Notification Flow\",\n \"description\": \"Receives a webhook trigger and logs the payment event.\",\n \"nodes\": [\n {\n \"id\": \"trigger-1\",\n \"type\": \"trigger\",\n \"name\": \"Webhook Trigger\",\n \"position\": {\n \"x\": 0,\n \"y\": 0\n },\n \"data\": {\n \"triggerType\": \"webhook\",\n \"path\": \"payments/received\",\n \"method\": \"POST\",\n \"input_contract\": \"open\",\n \"format\": \"json\"\n }\n },\n {\n \"id\": \"log-event\",\n \"type\": \"action\",\n \"name\": \"Log Payment Event\",\n \"position\": {\n \"x\": 200,\n \"y\": 0\n },\n \"data\": {\n \"action\": \"log\"\n }\n }\n ],\n \"edges\": [\n {\n \"id\": \"e1\",\n \"source\": \"trigger-1\",\n \"target\": \"log-event\"\n }\n ],\n \"metadata\": {\n \"team\": \"payments\",\n \"environment\": \"sandbox\"\n }\n}"
response = http.request(request)
puts response.read_body{
"createdAt": "2026-03-17T14:30:00Z",
"status": "draft",
"version": "1.0.0",
"workflowId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890"
}{
"code": "FLK-0001",
"detail": "name is a required field",
"errors": [
{
"location": "body.nodes",
"message": "expected array length >= 1",
"value": "<unknown>"
}
],
"instance": "/v1/workflows",
"status": 400,
"title": "Bad Request",
"type": "https://errors.lerian.studio/v1/FLK-0001"
}{
"code": "FLK-0001",
"detail": "name is a required field",
"errors": [
{
"location": "body.nodes",
"message": "expected array length >= 1",
"value": "<unknown>"
}
],
"instance": "/v1/workflows",
"status": 400,
"title": "Bad Request",
"type": "https://errors.lerian.studio/v1/FLK-0001"
}{
"code": "FLK-0001",
"detail": "name is a required field",
"errors": [
{
"location": "body.nodes",
"message": "expected array length >= 1",
"value": "<unknown>"
}
],
"instance": "/v1/workflows",
"status": 400,
"title": "Bad Request",
"type": "https://errors.lerian.studio/v1/FLK-0001"
}Create a Workflow
Use this endpoint to create a new workflow definition. New workflows are created in draft status.
POST
/
v1
/
workflows
Create a Workflow
curl --request POST \
--url https://flowker.sandbox.lerian.net/v1/workflows \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"name": "Payment Notification Flow",
"description": "Receives a webhook trigger and logs the payment event.",
"nodes": [
{
"id": "trigger-1",
"type": "trigger",
"name": "Webhook Trigger",
"position": {
"x": 0,
"y": 0
},
"data": {
"triggerType": "webhook",
"path": "payments/received",
"method": "POST",
"input_contract": "open",
"format": "json"
}
},
{
"id": "log-event",
"type": "action",
"name": "Log Payment Event",
"position": {
"x": 200,
"y": 0
},
"data": {
"action": "log"
}
}
],
"edges": [
{
"id": "e1",
"source": "trigger-1",
"target": "log-event"
}
],
"metadata": {
"team": "payments",
"environment": "sandbox"
}
}
'import requests
url = "https://flowker.sandbox.lerian.net/v1/workflows"
payload = {
"name": "Payment Notification Flow",
"description": "Receives a webhook trigger and logs the payment event.",
"nodes": [
{
"id": "trigger-1",
"type": "trigger",
"name": "Webhook Trigger",
"position": {
"x": 0,
"y": 0
},
"data": {
"triggerType": "webhook",
"path": "payments/received",
"method": "POST",
"input_contract": "open",
"format": "json"
}
},
{
"id": "log-event",
"type": "action",
"name": "Log Payment Event",
"position": {
"x": 200,
"y": 0
},
"data": { "action": "log" }
}
],
"edges": [
{
"id": "e1",
"source": "trigger-1",
"target": "log-event"
}
],
"metadata": {
"team": "payments",
"environment": "sandbox"
}
}
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
body: JSON.stringify({
name: 'Payment Notification Flow',
description: 'Receives a webhook trigger and logs the payment event.',
nodes: [
{
id: 'trigger-1',
type: 'trigger',
name: 'Webhook Trigger',
position: {x: 0, y: 0},
data: {
triggerType: 'webhook',
path: 'payments/received',
method: 'POST',
input_contract: 'open',
format: 'json'
}
},
{
id: 'log-event',
type: 'action',
name: 'Log Payment Event',
position: {x: 200, y: 0},
data: {action: 'log'}
}
],
edges: [{id: 'e1', source: 'trigger-1', target: 'log-event'}],
metadata: {team: 'payments', environment: 'sandbox'}
})
};
fetch('https://flowker.sandbox.lerian.net/v1/workflows', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://flowker.sandbox.lerian.net/v1/workflows",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'name' => 'Payment Notification Flow',
'description' => 'Receives a webhook trigger and logs the payment event.',
'nodes' => [
[
'id' => 'trigger-1',
'type' => 'trigger',
'name' => 'Webhook Trigger',
'position' => [
'x' => 0,
'y' => 0
],
'data' => [
'triggerType' => 'webhook',
'path' => 'payments/received',
'method' => 'POST',
'input_contract' => 'open',
'format' => 'json'
]
],
[
'id' => 'log-event',
'type' => 'action',
'name' => 'Log Payment Event',
'position' => [
'x' => 200,
'y' => 0
],
'data' => [
'action' => 'log'
]
]
],
'edges' => [
[
'id' => 'e1',
'source' => 'trigger-1',
'target' => 'log-event'
]
],
'metadata' => [
'team' => 'payments',
'environment' => 'sandbox'
]
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://flowker.sandbox.lerian.net/v1/workflows"
payload := strings.NewReader("{\n \"name\": \"Payment Notification Flow\",\n \"description\": \"Receives a webhook trigger and logs the payment event.\",\n \"nodes\": [\n {\n \"id\": \"trigger-1\",\n \"type\": \"trigger\",\n \"name\": \"Webhook Trigger\",\n \"position\": {\n \"x\": 0,\n \"y\": 0\n },\n \"data\": {\n \"triggerType\": \"webhook\",\n \"path\": \"payments/received\",\n \"method\": \"POST\",\n \"input_contract\": \"open\",\n \"format\": \"json\"\n }\n },\n {\n \"id\": \"log-event\",\n \"type\": \"action\",\n \"name\": \"Log Payment Event\",\n \"position\": {\n \"x\": 200,\n \"y\": 0\n },\n \"data\": {\n \"action\": \"log\"\n }\n }\n ],\n \"edges\": [\n {\n \"id\": \"e1\",\n \"source\": \"trigger-1\",\n \"target\": \"log-event\"\n }\n ],\n \"metadata\": {\n \"team\": \"payments\",\n \"environment\": \"sandbox\"\n }\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Authorization", "Bearer <token>")
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://flowker.sandbox.lerian.net/v1/workflows")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"name\": \"Payment Notification Flow\",\n \"description\": \"Receives a webhook trigger and logs the payment event.\",\n \"nodes\": [\n {\n \"id\": \"trigger-1\",\n \"type\": \"trigger\",\n \"name\": \"Webhook Trigger\",\n \"position\": {\n \"x\": 0,\n \"y\": 0\n },\n \"data\": {\n \"triggerType\": \"webhook\",\n \"path\": \"payments/received\",\n \"method\": \"POST\",\n \"input_contract\": \"open\",\n \"format\": \"json\"\n }\n },\n {\n \"id\": \"log-event\",\n \"type\": \"action\",\n \"name\": \"Log Payment Event\",\n \"position\": {\n \"x\": 200,\n \"y\": 0\n },\n \"data\": {\n \"action\": \"log\"\n }\n }\n ],\n \"edges\": [\n {\n \"id\": \"e1\",\n \"source\": \"trigger-1\",\n \"target\": \"log-event\"\n }\n ],\n \"metadata\": {\n \"team\": \"payments\",\n \"environment\": \"sandbox\"\n }\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://flowker.sandbox.lerian.net/v1/workflows")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"name\": \"Payment Notification Flow\",\n \"description\": \"Receives a webhook trigger and logs the payment event.\",\n \"nodes\": [\n {\n \"id\": \"trigger-1\",\n \"type\": \"trigger\",\n \"name\": \"Webhook Trigger\",\n \"position\": {\n \"x\": 0,\n \"y\": 0\n },\n \"data\": {\n \"triggerType\": \"webhook\",\n \"path\": \"payments/received\",\n \"method\": \"POST\",\n \"input_contract\": \"open\",\n \"format\": \"json\"\n }\n },\n {\n \"id\": \"log-event\",\n \"type\": \"action\",\n \"name\": \"Log Payment Event\",\n \"position\": {\n \"x\": 200,\n \"y\": 0\n },\n \"data\": {\n \"action\": \"log\"\n }\n }\n ],\n \"edges\": [\n {\n \"id\": \"e1\",\n \"source\": \"trigger-1\",\n \"target\": \"log-event\"\n }\n ],\n \"metadata\": {\n \"team\": \"payments\",\n \"environment\": \"sandbox\"\n }\n}"
response = http.request(request)
puts response.read_body{
"createdAt": "2026-03-17T14:30:00Z",
"status": "draft",
"version": "1.0.0",
"workflowId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890"
}{
"code": "FLK-0001",
"detail": "name is a required field",
"errors": [
{
"location": "body.nodes",
"message": "expected array length >= 1",
"value": "<unknown>"
}
],
"instance": "/v1/workflows",
"status": 400,
"title": "Bad Request",
"type": "https://errors.lerian.studio/v1/FLK-0001"
}{
"code": "FLK-0001",
"detail": "name is a required field",
"errors": [
{
"location": "body.nodes",
"message": "expected array length >= 1",
"value": "<unknown>"
}
],
"instance": "/v1/workflows",
"status": 400,
"title": "Bad Request",
"type": "https://errors.lerian.studio/v1/FLK-0001"
}{
"code": "FLK-0001",
"detail": "name is a required field",
"errors": [
{
"location": "body.nodes",
"message": "expected array length >= 1",
"value": "<unknown>"
}
],
"instance": "/v1/workflows",
"status": 400,
"title": "Bad Request",
"type": "https://errors.lerian.studio/v1/FLK-0001"
}Authorizations
JWT bearer token issued by the identity provider. Send it in the Authorization header as Bearer <token>.
Body
application/json
Request body containing the workflow definition.
Unique name for the workflow.
Required string length:
1 - 100Example:
"Payment Notification Flow"
Optional human-readable description of the workflow's purpose.
Maximum string length:
500Example:
"Receives a webhook trigger and logs the payment event."
Connections between nodes that define the execution flow. Each edge links a source node to a target node. Branching is routed by the edge's sourceHandle, which must match the outcome handle its conditional source node produces.
Maximum array length:
200Show child attributes
Show child attributes
Custom key-value pairs for tagging or categorizing the workflow.
Show child attributes
Show child attributes
Example:
{
"team": "payments",
"environment": "sandbox"
}
The steps that make up this workflow. Each node is a unit of work — a trigger, an executor call, a conditional branch, or an action.
Maximum array length:
100Show child attributes
Show child attributes
Response
Indicates that the resource was successfully created and the operation was completed as expected.
Timestamp when the workflow was created.
Example:
"2026-03-17T14:30:00Z"
Initial status of the workflow (always draft on creation).
Example:
"draft"
Version of the workflow definition.
Example:
"1.0.0"
Unique identifier of the created workflow.
Example:
"a1b2c3d4-e5f6-7890-abcd-ef1234567890"
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