Load Prompts from Github Repo and auto populate n8n expressions
Workflow JSON
{"id": "QyMyf3zraY0wxXDf", "meta": {"instanceId": "ba3fa76a571c35110ef5f67e5099c9a5c1768ef125c2f3b804ba20de75248c0b", "templateCredsSetupCompleted": true}, "name": "Load Prompts from Github Repo and auto populate n8n expressions", "tags": [], "nodes": [{"id": "34781446-b06e-41eb-83b8-b96bda1a5595", "name": "When clicking \u2018Test workflow\u2019", "type": "n8n-nodes-base.manualTrigger", "position": [-80, 0], "parameters": {}, "typeVersion": 1}, {"id": "c53b7243-7c82-47e0-a5ee-bd82bc51c386", "name": "GitHub", "type": "n8n-nodes-base.github", "position": [600, 0], "parameters": {"owner": {"__rl": true, "mode": "name", "value": "={{ $json.Account }}"}, "filePath": "={{ $json.path }}{{ $json.prompt }}", "resource": "file", "operation": "get", "repository": {"__rl": true, "mode": "name", "value": "={{ $json.repo }}"}, "additionalParameters": {}}, "credentials": {"githubApi": {"id": "", "name": "[Your githubApi]"}}, "typeVersion": 1}, {"id": "9976b199-b744-47a7-9d75-4b831274c01b", "name": "Extract from File", "type": "n8n-nodes-base.extractFromFile", "position": [840, 0], "parameters": {"options": {}, "operation": "text"}, "typeVersion": 1}, {"id": "26aa4e6a-c487-4cdf-91d5-df660cf826a6", "name": "setVars", "type": "n8n-nodes-base.set", "position": [180, 0], "parameters": {"options": {}, "assignments": {"assignments": [{"id": "150618c5-09b1-4f8b-a7b4-984662bf3381", "name": "Account", "type": "string", "value": "TPGLLC-US"}, {"id": "22e8a3b0-bd53-485c-b971-7f1dd0686f0e", "name": "repo", "type": "string", "value": "PeresPrompts"}, {"id": "ab94d0a1-ef3a-4fe9-9076-6882c6fda0ac", "name": "path", "type": "string", "value": "SEO/"}, {"id": "66f122eb-1cbd-4769-aac8-3f05cdb6c116", "name": "prompt", "type": "string", "value": "keyword_research.md"}, {"id": "03fe26a3-04e6-439c-abcb-d438fc5203c0", "name": "company", "type": "string", "value": "South Nassau Physical Therapy"}, {"id": "c133d216-a457-4872-a060-0ba4d94549af", "name": "product", "type": "string", "value": "Manual Therapy"}, {"id": "584864dd-2518-45e2-b501-02828757fc3a", "name": "features", "type": "string", "value": "pain relief"}, {"id": "0c4594cc-302a-4215-bdad-12cf54f57967", "name": "sector", "type": "string", "value": "physical therapy"}]}}, "typeVersion": 3.4}, {"id": "9d92f581-8cd9-448c-aa1d-023a96c1ddda", "name": "replace variables", "type": "n8n-nodes-base.code", "position": [1900, -20], "parameters": {"jsCode": "// Fetch the prompt text\nconst prompt = $('SetPrompt').first().json.data; // Ensure the prompt contains placeholders like {{ some.node.value }}\n\n// Example variables object\nconst variables = {\n company: $('setVars').first().json.company,\n features: \"Awesome Software\",\n keyword: \"2025-02-07\"\n};\n\n// Function to replace placeholders dynamically\nconst replaceVariables = (text, vars) => {\n return text.replace(/{{(.*?)}}/g, (match, key) => {\n const trimmedKey = key.trim();\n \n // Extract last part after the last dot\n const finalKey = trimmedKey.split('.').pop();\n\n // Replace if key exists, otherwise leave placeholder unchanged\n return vars.hasOwnProperty(finalKey) ? vars[finalKey] : match;\n });\n};\n\n// Replace and return result\nreturn [{\n prompt: replaceVariables(prompt, variables)\n}];\n"}, "typeVersion": 2}, {"id": "6c6c4fde-6ee5-47a8-894d-44d1afcedc2a", "name": "If", "type": "n8n-nodes-base.if", "position": [1560, 0], "parameters": {"options": {}, "conditions": {"options": {"version": 2, "leftValue": "", "caseSensitive": true, "typeValidation": "strict"}, "combinator": "and", "conditions": [{"id": "2717a7e5-095a-42bf-8b5b-8050c3389ec5", "operator": {"type": "boolean", "operation": "true", "singleValue": true}, "leftValue": "={{ $json.success }}", "rightValue": "={{ $('Check All Prompt Vars Present').item.json.keys()}}"}]}}, "typeVersion": 2.2}, {"id": "3b7712b8-5152-4f60-9401-03c89c39e227", "name": "Check All Prompt Vars Present", "type": "n8n-nodes-base.code", "position": [1280, 0], "parameters": {"jsCode": "// Get prompt text\nconst prompt = $json.data;\n\n// Extract variables inside {{ }} dynamically\nconst matches = [...prompt.matchAll(/{{(.*?)}}/g)];\nconst uniqueVars = [...new Set(matches.map(match => match[1].trim().split('.').pop()))];\n\n// Get variables from the Set Node\nconst setNodeVariables = $node[\"setVars\"].json || {};\n\n// Log extracted variables and Set Node keys\nconsole.log(\"Extracted Variables:\", uniqueVars);\nconsole.log(\"Set Node Keys:\", Object.keys(setNodeVariables));\n\n// Check if all required variables are present in the Set Node\nconst missingKeys = uniqueVars.filter(varName => !setNodeVariables.hasOwnProperty(varName));\n\nconsole.log(\"Missing Keys:\", missingKeys);\n\n// Return false if any required variable is missing, otherwise return true\nreturn [{\n success: missingKeys.length === 0,\n missingKeys: missingKeys\n}];\n"}, "typeVersion": 2}, {"id": "32618e10-3285-4c16-9e78-058dde329337", "name": "SetPrompt", "type": "n8n-nodes-base.set", "position": [1060, 0], "parameters": {"options": {}, "assignments": {"assignments": [{"id": "335b450d-542a-4714-83d8-ccc237188fc5", "name": "data", "type": "string", "value": "={{ $json.data }}"}]}}, "typeVersion": 3.4}, {"id": "4d8b34ca-50dd-4f37-b4f7-542291461662", "name": "Stop and Error", "type": "n8n-nodes-base.stopAndError", "position": [1900, 200], "parameters": {"errorMessage": "=Missing Prompt Variables : {{ $('Check All Prompt Vars Present').item.json.missingKeys }}\n"}, "typeVersion": 1}, {"id": "a78c1e17-9152-4241-bcdf-c0d723da543b", "name": "Set Completed Prompt", "type": "n8n-nodes-base.set", "position": [2220, -20], "parameters": {"options": {}, "assignments": {"assignments": [{"id": "57a9625b-adea-4ee7-a72a-2be8db15f3d4", "name": "Prompt", "type": "string", "value": "={{ $json.prompt }}"}]}}, "typeVersion": 3.4}, {"id": "51447c90-a222-4172-a49b-86ec43332559", "name": "AI Agent", "type": "@n8n/n8n-nodes-langchain.agent", "position": [2440, -20], "parameters": {"text": "={{ $json.Prompt }}", "options": {}, "promptType": "define"}, "typeVersion": 1.7}, {"id": "f15b6af1-7af2-4515-be8f-960211118dce", "name": "Sticky Note", "type": "n8n-nodes-base.stickyNote", "position": [60, -120], "parameters": {"width": 340, "height": 260, "content": "# Set The variables in your prompt here"}, "typeVersion": 1}, {"id": "163db6cc-5b06-4ae6-ac97-5890b37cdb18", "name": "Sticky Note1", "type": "n8n-nodes-base.stickyNote", "position": [520, -120], "parameters": {"color": 5, "content": "## The repo is currently public for you to test with"}, "typeVersion": 1}, {"id": "83ff6a86-a759-42a9-ace4-e20d57b906db", "name": "Sticky Note2", "type": "n8n-nodes-base.stickyNote", "position": [1780, -200], "parameters": {"width": 360, "height": 260, "content": "## Replaces the values in the prompt with the variables in the \n# 'setVars' Node"}, "typeVersion": 1}, {"id": "7dd61153-84ac-4b59-b449-333825476c33", "name": "Sticky Note3", "type": "n8n-nodes-base.stickyNote", "position": [2000, 180], "parameters": {"color": 3, "content": "## If you're missing variables they will be listed here"}, "typeVersion": 1}, {"id": "1f070dc3-3d25-41d8-b534-912ba7c8b2b0", "name": "Prompt Output", "type": "n8n-nodes-base.set", "position": [2800, -20], "parameters": {"options": {}, "assignments": {"assignments": [{"id": "01a30683-c348-4712-a3b1-739fc4a17718", "name": "promptResponse", "type": "string", "value": "={{ $json.output }}"}]}}, "typeVersion": 3.4}, {"id": "2d12a6e2-7976-41b0-8cb2-01466b28269d", "name": "Ollama Chat Model", "type": "@n8n/n8n-nodes-langchain.lmChatOllama", "position": [2480, 200], "parameters": {"options": {}}, "credentials": {"ollamaApi": {"id": "", "name": "[Your ollamaApi]"}}, "typeVersion": 1}], "active": false, "pinData": {}, "settings": {"executionOrder": "v1"}, "versionId": "4327a337-59e7-4b5b-98e8-93c6be550972", "connections": {"If": {"main": [[{"node": "replace variables", "type": "main", "index": 0}], [{"node": "Stop and Error", "type": "main", "index": 0}]]}, "GitHub": {"main": [[{"node": "Extract from File", "type": "main", "index": 0}]]}, "setVars": {"main": [[{"node": "GitHub", "type": "main", "index": 0}]]}, "AI Agent": {"main": [[{"node": "Prompt Output", "type": "main", "index": 0}]]}, "SetPrompt": {"main": [[{"node": "Check All Prompt Vars Present", "type": "main", "index": 0}]]}, "Extract from File": {"main": [[{"node": "SetPrompt", "type": "main", "index": 0}]]}, "Ollama Chat Model": {"ai_languageModel": [[{"node": "AI Agent", "type": "ai_languageModel", "index": 0}]]}, "replace variables": {"main": [[{"node": "Set Completed Prompt", "type": "main", "index": 0}]]}, "Set Completed Prompt": {"main": [[{"node": "AI Agent", "type": "main", "index": 0}]]}, "Check All Prompt Vars Present": {"main": [[{"node": "If", "type": "main", "index": 0}]]}, "When clicking \u2018Test workflow\u2019": {"main": [[{"node": "setVars", "type": "main", "index": 0}]]}}}How to Import This Workflow
- 1Copy the workflow JSON above using the Copy Workflow JSON button.
- 2Open your n8n instance and go to Workflows.
- 3Click Import from JSON and paste the copied workflow.
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