The workflow JSON
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{
"meta": {
"templateCredsSetupCompleted": true
},
"nodes": [
{
"id": "b9a807c3-5847-477a-a242-2fdf5b15ba7e",
"name": "API to Check existing merge request",
"type": "n8n-nodes-base.httpRequest",
"position": [
-840,
-20
],
"parameters": {
"url": "=https://gitlab.com/<projectid>/merge_requests",
"options": {
"allowUnauthorizedCerts": false
},
"sendQuery": true,
"sendHeaders": true,
"queryParameters": {
"parameters": [
{
"name": "state",
"value": "opened"
},
{
"name": "source_branch",
"value": "=sourceBranchName"
}
]
},
"headerParameters": {
"parameters": [
{
"name": "PRIVATE-TOKEN",
"value": "=gitlabToken"
}
]
}
},
"typeVersion": 4.2,
"alwaysOutputData": true
},
{
"id": "42270a5a-d696-44f3-b2f5-16b2ddb3488c",
"name": "Is Exists",
"type": "n8n-nodes-base.if",
"position": [
-660,
-20
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "d895b8cc-5679-442f-a1bf-d8375174a24b",
"operator": {
"type": "boolean",
"operation": "true",
"singleValue": true
},
"leftValue": "={{ $node[\"API to Check existing merge request\"].data.isEmpty() }}",
"rightValue": ""
}
]
}
},
"typeVersion": 2.2
},
{
"id": "d380c943-0525-4976-9e70-c90de1177f0c",
"name": "Create New Merge Request",
"type": "n8n-nodes-base.httpRequest",
"position": [
-440,
-200
],
"parameters": {
"url": "=https://gitlab.com/<projectid>/merge_requests",
"method": "POST",
"options": {
"allowUnauthorizedCerts": false
},
"sendBody": true,
"contentType": "form-urlencoded",
"sendHeaders": true,
"bodyParameters": {
"parameters": [
{
"name": "source_branch",
"value": "=sourceBranchName"
},
{
"name": "target_branch",
"value": "=targetBranchName"
},
{
"name": "title",
"value": "=mergeTitle"
}
]
},
"headerParameters": {
"parameters": [
{
"name": "PRIVATE-TOKEN",
"value": "=gitlabToken"
}
]
}
},
"typeVersion": 4.2
},
{
"id": "600a0ed5-cb68-4479-8aee-55b55f0d8630",
"name": "Loop Over Items",
"type": "n8n-nodes-base.splitInBatches",
"position": [
-440,
160
],
"parameters": {
"options": {}
},
"typeVersion": 3
},
{
"id": "555643cb-761c-41ec-b983-8e0194851a8d",
"name": "API to CLOSE existing Merge Request",
"type": "n8n-nodes-base.httpRequest",
"position": [
-220,
180
],
"parameters": {
"url": "=https://gitlab.com/<projectid>/merge_requests/<merge_iid>",
"method": "PUT",
"options": {
"allowUnauthorizedCerts": false
},
"sendBody": true,
"contentType": "form-urlencoded",
"sendHeaders": true,
"bodyParameters": {
"parameters": [
{
"name": "state_event",
"value": "close"
}
]
},
"headerParameters": {
"parameters": [
{
"name": "PRIVATE-TOKEN",
"value": "=gitlabToken"
}
]
}
},
"typeVersion": 4.2
},
{
"id": "0c94b06a-80e3-4e50-8bac-2bd4015f085e",
"name": "Add Custom Notes To Merge Request",
"type": "n8n-nodes-base.httpRequest",
"position": [
-220,
-200
],
"parameters": {
"url": "=https://gitlab.com/<projectid>/merge_requests/<merge_iid>/notes",
"method": "POST",
"options": {
"allowUnauthorizedCerts": false
},
"sendBody": true,
"contentType": "form-urlencoded",
"sendHeaders": true,
"bodyParameters": {
"parameters": [
{
"name": "body",
"value": "=<mergeComments>"
}
]
},
"headerParameters": {
"parameters": [
{
"name": "PRIVATE-TOKEN",
"value": "=gitlabToken"
}
]
}
},
"typeVersion": 4.2
},
{
"id": "8e849f4f-2a52-46ba-9e0a-17126a8d966c",
"name": "30 secs wait to approve merge request and pipeline to finish1",
"type": "n8n-nodes-base.wait",
"position": [
140,
-200
],
"parameters": {
"amount": 30
},
"typeVersion": 1.1
},
{
"id": "05cca829-b2df-4c1e-9441-56349acc4a0d",
"name": "Merge When Pipeline Succeeds",
"type": "n8n-nodes-base.httpRequest",
"position": [
720,
-200
],
"parameters": {
"url": "=https://gitlab.com/<projectid>/merge_requests/<merge_iid>/merge",
"method": "PUT",
"options": {
"allowUnauthorizedCerts": false
},
"jsonBody": "={\n\"merge_when_pipeline_succeeds\": {{ $('setValueForMerge').item.json.merge_when_pipeline_succeeds }},\n \"should_remove_source_branch\": {{ $('setValueForMerge').item.json.should_remove_source_branch }}\n}",
"sendBody": true,
"sendHeaders": true,
"specifyBody": "json",
"headerParameters": {
"parameters": [
{
"name": "PRIVATE-TOKEN",
"value": "=gitlabToken"
}
]
}
},
"typeVersion": 4.2
},
{
"id": "e3ce9cdc-5484-4b4b-8701-6b9089a1f76d",
"name": "setValueForMerge",
"type": "n8n-nodes-base.set",
"position": [
460,
-200
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "a22922c7-0c69-4ac1-bd15-4d289fa57737",
"name": "merge_when_pipeline_succeeds",
"type": "boolean",
"value": false
},
{
"id": "17580668-84d9-4ad6-b93b-e7b6c9c0f8ea",
"name": "should_remove_source_branch",
"type": "boolean",
"value": true
}
]
}
},
"typeVersion": 3.4
},
{
"id": "0d49ec98-4806-492e-a6c2-a298ed8bb11a",
"name": "Schedule Trigger",
"type": "n8n-nodes-base.scheduleTrigger",
"position": [
-1160,
-20
],
"parameters": {
"rule": {
"interval": [
{}
]
}
},
"typeVersion": 1.2
}
],
"connections": {
"Is Exists": {
"main": [
[
{
"node": "Create New Merge Request",
"type": "main",
"index": 0
}
],
[
{
"node": "Loop Over Items",
"type": "main",
"index": 0
}
]
]
},
"Loop Over Items": {
"main": [
[
{
"node": "API to Check existing merge request",
"type": "main",
"index": 0
}
],
[
{
"node": "API to CLOSE existing Merge Request",
"type": "main",
"index": 0
}
]
]
},
"Schedule Trigger": {
"main": [
[
{
"node": "API to Check existing merge request",
"type": "main",
"index": 0
}
]
]
},
"setValueForMerge": {
"main": [
[
{
"node": "Merge When Pipeline Succeeds",
"type": "main",
"index": 0
}
]
]
},
"Create New Merge Request": {
"main": [
[
{
"node": "Add Custom Notes To Merge Request",
"type": "main",
"index": 0
}
]
]
},
"Add Custom Notes To Merge Request": {
"main": [
[
{
"node": "30 secs wait to approve merge request and pipeline to finish1",
"type": "main",
"index": 0
}
]
]
},
"API to CLOSE existing Merge Request": {
"main": [
[
{
"node": "Loop Over Items",
"type": "main",
"index": 0
}
]
]
},
"API to Check existing merge request": {
"main": [
[
{
"node": "Is Exists",
"type": "main",
"index": 0
}
]
]
},
"30 secs wait to approve merge request and pipeline to finish1": {
"main": [
[
{
"node": "setValueForMerge",
"type": "main",
"index": 0
}
]
]
}
}
}
About this workflow
Http Schedule. Uses httpRequest, splitInBatches, scheduleTrigger. Scheduled trigger; 10 nodes.
Source: https://github.com/Zie619/n8n-workflows — original creator credit. Request a take-down →