📚 add an awesome collection of n8n workflows

docs/README.md

@@ -2,4 +2,4 @@
 
 ![n8n.io - Workflow Automation](https://raw.githubusercontent.com/n8n-io/n8n/master/docs/images/n8n-logo.png)
 
-Documentation coming soon...
+Documentation coming soon... in the meantime, you can browse the [awesome collection of n8n workflows](workflows/README.md).

docs/workflows/README.md

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+<div align="center">
+	<img width="464" height="106" src="../images/n8n-logo.png" alt="n8n">
+	<br>
+	<br>
+	<br>
+</div>
+
+<br>
+
+
+Awesome n8n workflows collection
+================================
+
+
+You will find here a collection of n8n worflow examples that can be easily imported in n8n.
+
+
+## Contents
+
+- [For loop](#for-loop) - how to iterate over an JSON array
+- [Excel to Postgres](#excel-to-postgres) - how to migrate data from Excel to PostgreSQL
+- [Postgres to Excel](#postgres-to-excel) - how to migrate data from Postgres to Excel
+- [Update Postgres rows](#update-postgres-rows) - how to update PostreSQL rows
+
+
+
+## For loop
+
+![](for-loop.png)
+
+1. Make an HTTP request that responds with a JSON array
+1. For each item in the response array, make an HTTP request
+
+[Download workflow](for-loop.json)
+
+
+
+## Excel to Postgres
+
+![](excel-to-postgres.png)
+
+1. Read XLS from file
+1. convert it to JSON 
+1. insert it in Postgres
+
+[Download workflow](excel-to-postgres.json)
+
+
+
+## Postgres to Excel
+
+![](postgres-to-excel.png)
+
+1. Read data from Postgres
+1. Converting it to XLS 
+1. save it to disk
+
+[Download workflow](postgres-to-excel.json)
+
+
+
+## Update Postgres rows
+
+![](update-postgres-rows.png)
+
+- Simple update of data
+
+[Download workflow](update-postgres-rows.json)

docs/workflows/excel-to-postgres.json

@@ -0,0 +1,76 @@
+{
+  "nodes": [
+    {
+      "parameters": {},
+      "name": "Start",
+      "type": "n8n-nodes-base.start",
+      "typeVersion": 1,
+      "position": [
+        250,
+        300
+      ]
+    },
+    {
+      "parameters": {
+        "filePath": "spreadsheet.xls"
+      },
+      "name": "Read Binary File",
+      "type": "n8n-nodes-base.readBinaryFile",
+      "typeVersion": 1,
+      "position": [
+        450,
+        650
+      ]
+    },
+    {
+      "parameters": {},
+      "name": "Spreadsheet File1",
+      "type": "n8n-nodes-base.spreadsheetFile",
+      "typeVersion": 1,
+      "position": [
+        600,
+        650
+      ]
+    },
+    {
+      "parameters": {
+        "table": "product",
+        "columns": "name,ean"
+      },
+      "name": "Insert Rows1",
+      "type": "n8n-nodes-base.postgres",
+      "typeVersion": 1,
+      "position": [
+        750,
+        650
+      ],
+      "credentials": {
+        "postgres": "postgres"
+      }
+    }
+  ],
+  "connections": {
+    "Read Binary File": {
+      "main": [
+        [
+          {
+            "node": "Spreadsheet File1",
+            "type": "main",
+            "index": 0
+          }
+        ]
+      ]
+    },
+    "Spreadsheet File1": {
+      "main": [
+        [
+          {
+            "node": "Insert Rows1",
+            "type": "main",
+            "index": 0
+          }
+        ]
+      ]
+    }
+  }
+}

docs/workflows/for-loop.json

@@ -0,0 +1,97 @@
+{
+    "nodes": [
+      {
+        "parameters": {},
+        "name": "Start",
+        "type": "n8n-nodes-base.start",
+        "typeVersion": 1,
+        "position": [
+          250,
+          300
+        ]
+      },
+      {
+        "parameters": {
+          "url": "https://jsonplaceholder.typicode.com/posts?userId=1",
+          "headerParametersUi": {
+            "parameter": []
+          }
+        },
+        "name": "Http Request",
+        "type": "n8n-nodes-base.httpRequest",
+        "typeVersion": 1,
+        "position": [
+          400,
+          300
+        ]
+      },
+      {
+        "parameters": {
+          "functionCode": "const newItems = [];\nfor (const item of items[0].json) {\n  newItems.push({json: item});\n}\nreturn newItems;"
+        },
+        "name": "Function",
+        "type": "n8n-nodes-base.function",
+        "typeVersion": 1,
+        "position": [
+          550,
+          300
+        ]
+      },
+      {
+        "parameters": {
+          "url": "https://postman-echo.com/get",
+          "responseFormat": "string",
+          "queryParametersUi": {
+            "parameter": [
+              {
+                "name": "title",
+                "value": "={{$node[\"Function\"].data[\"title\"]}}"
+              }
+            ]
+          }
+        },
+        "name": "Http Request1",
+        "type": "n8n-nodes-base.httpRequest",
+        "typeVersion": 1,
+        "position": [
+          700,
+          300
+        ]
+      }
+    ],
+    "connections": {
+      "Start": {
+        "main": [
+          [
+            {
+              "node": "Http Request",
+              "type": "main",
+              "index": 0
+            }
+          ]
+        ]
+      },
+      "Http Request": {
+        "main": [
+          [
+            {
+              "node": "Function",
+              "type": "main",
+              "index": 0
+            }
+          ]
+        ]
+      },
+      "Function": {
+        "main": [
+          [
+            {
+              "node": "Http Request1",
+              "type": "main",
+              "index": 0
+            }
+          ]
+        ]
+      }
+    }
+  }

docs/workflows/postgres-to-excel.json

@@ -0,0 +1,78 @@
+{
+  "nodes": [
+    {
+      "parameters": {},
+      "name": "Start",
+      "type": "n8n-nodes-base.start",
+      "typeVersion": 1,
+      "position": [
+        250,
+        300
+      ]
+    },
+    {
+      "parameters": {
+        "operation": "executeQuery",
+        "query": "SELECT name, ean FROM product"
+      },
+      "name": "Run Query",
+      "type": "n8n-nodes-base.postgres",
+      "typeVersion": 1,
+      "position": [
+        450,
+        450
+      ],
+      "credentials": {
+        "postgres": "postgres"
+      }
+    },
+    {
+      "parameters": {
+        "operation": "toFile"
+      },
+      "name": "Spreadsheet File",
+      "type": "n8n-nodes-base.spreadsheetFile",
+      "typeVersion": 1,
+      "position": [
+        600,
+        450
+      ]
+    },
+    {
+      "parameters": {
+        "fileName": "spreadsheet.xls"
+      },
+      "name": "Write Binary File",
+      "type": "n8n-nodes-base.writeBinaryFile",
+      "typeVersion": 1,
+      "position": [
+        750,
+        450
+      ]
+    }
+  ],
+  "connections": {
+    "Run Query": {
+      "main": [
+        [
+          {
+            "node": "Spreadsheet File",
+            "type": "main",
+            "index": 0
+          }
+        ]
+      ]
+    },
+    "Spreadsheet File": {
+      "main": [
+        [
+          {
+            "node": "Write Binary File",
+            "type": "main",
+            "index": 0
+          }
+        ]
+      ]
+    }
+  }
+}

docs/workflows/update-postgres-rows.json

@@ -0,0 +1,56 @@
+{
+  "nodes": [
+    {
+      "parameters": {},
+      "name": "Start",
+      "type": "n8n-nodes-base.start",
+      "typeVersion": 1,
+      "position": [
+        250,
+        300
+      ]
+    },
+    {
+      "parameters": {
+        "functionCode": "const newItems = [];\nfor (let i=1;i < 6; i++) {\n  newItems.push({\n    json: {\n      id: i,\n      name: `New name ${i}`,\n      ean: `New EAN ${i}`,\n    }\n  });\n}\nreturn newItems;"
+      },
+      "name": "Function1",
+      "type": "n8n-nodes-base.function",
+      "typeVersion": 1,
+      "position": [
+        460,
+        300
+      ]
+    },
+    {
+      "parameters": {
+        "operation": "update",
+        "table": "product",
+        "columns": "name,ean"
+      },
+      "name": "Update Rows",
+      "type": "n8n-nodes-base.postgres",
+      "typeVersion": 1,
+      "position": [
+        610,
+        300
+      ],
+      "credentials": {
+        "postgres": "postgres"
+      }
+    }
+  ],
+  "connections": {
+    "Function1": {
+      "main": [
+        [
+          {
+            "node": "Update Rows",
+            "type": "main",
+            "index": 0
+          }
+        ]
+      ]
+    }
+  }
+}