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Automated Blog Content Creator for WordPress with GPT Image 1 & Perplexity
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https://n8nworkflows.xyz/workflows/automated-blog-content-creator-for-wordpress-with-gpt-image-1---perplexity-3974
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# Automated Blog Content Creator for WordPress with GPT Image 1 & Perplexity
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### 1. Workflow Overview
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This n8n workflow automates the entire blog content creation and publishing process for WordPress, leveraging AI technologies and integrations to produce SEO-optimized, research-backed articles with context-specific featured images. It targets content creators, solopreneurs, and teams seeking a fully autonomous blogging system that minimizes manual effort and reduces costs while maximizing organic traffic.
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The workflow is logically divided into these main functional blocks:
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- **1.1 Trigger and Initialization**: Manual or scheduled start triggers the workflow and loads the brand brief from a sub-workflow.
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- **1.2 Topic Ideation and Uniqueness Check**: Generates a unique blog topic idea, verifies it against Google Sheets history, and processes category rewriting.
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- **1.3 Research Phase**: Uses Perplexity AI to research the approved topic and cleans the research data.
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- **1.4 Content Generation**: Writes a full blog post with SEO-optimized headings and converts it to clean HTML.
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- **1.5 Featured Image Creation and Upload**: Generates an image prompt, creates the image via GPT Image 1, uploads it to imgbb, downloads it, and uploads it to WordPress as the featured image.
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- **1.6 Post-Publication Actions**: Publishes the post on WordPress, creates an excerpt, updates Google Sheets logs, and updates Notion with publication data.
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---
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### 2. Block-by-Block Analysis
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---
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#### 1.1 Trigger and Initialization
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- **Overview:**
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Starts the workflow manually or on a schedule and retrieves the brand brief to serve as the foundational context for subsequent AI processes.
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- **Nodes Involved:**
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- Schedule Trigger
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- Manual Trigger ("When clicking ‘Test workflow’")
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- Brand Brief Sub-Workflow ("get brand brief")
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- Simple Memory
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- **Node Details:**
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- **Schedule Trigger**
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- Type: Schedule Trigger
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- Role: Automatically triggers the workflow on a preset schedule to run autonomously.
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- Configuration: Default scheduling (user-configurable).
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- Inputs: None (trigger node)
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- Outputs: Triggers "Idea creator" node.
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- Edge Cases: Scheduling misconfigurations or disabled schedules prevent execution.
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- **Manual Trigger ("When clicking ‘Test workflow’")**
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- Type: Manual Trigger
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- Role: Allows manual execution for testing or immediate runs.
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- Inputs: None (trigger node)
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- Outputs: Triggers "Idea creator" node.
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- Edge Cases: None; manual user action required.
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- **get brand brief**
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- Type: Sub-workflow tool node
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- Role: Retrieves the stored brand brief which guides the tone, style, and branding of the blog content.
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- Configuration: Calls a sub-workflow that holds brand-specific data.
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- Inputs: Trigger from "Idea creator" node.
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- Outputs: Brand brief data passed to "Idea creator".
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- Edge Cases: Failure to fetch brand brief due to sub-workflow errors or missing data.
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- **Simple Memory**
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- Type: LangChain memory buffer window
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- Role: Maintains conversational or contextual memory to keep idea generation coherent and consistent.
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- Inputs: Connected to "Idea creator" for AI memory context.
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- Outputs: Supplies memory context to "Idea creator".
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- Edge Cases: Memory overflow or loss could impact AI output consistency.
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---
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#### 1.2 Topic Ideation and Uniqueness Check
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- **Overview:**
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Generates a unique blog topic idea based on the brand brief, rewrites the category, and checks Google Sheets history to avoid duplicate topics.
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- **Nodes Involved:**
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- Idea creator (LangChain agent)
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- OpenAI 4.1 mini3 (LLM)
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- Category rewrite (Code)
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- Structured Output Parser
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- Check History (Google Sheets tool)
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- **Node Details:**
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- **Idea creator**
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- Type: LangChain Agent
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- Role: Core AI agent that ideates blog topics using inputs from brand brief and memory.
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- Configuration: Uses prompts, memory, and AI tools (OpenAI).
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- Inputs: Brand brief (via sub-workflow), memory, category rewrite output, and history check results.
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- Outputs: Proposed blog topic with structured output.
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- Edge Cases: AI model failures, malformed outputs, or connectivity issues.
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- **OpenAI 4.1 mini3**
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- Type: LangChain OpenAI chat LLM
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- Role: Language model used by the Idea creator for generating content ideas.
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- Configuration: OpenAI API key configured in credentials.
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- Inputs: Prompts from "Idea creator".
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- Outputs: Text completions for idea generation.
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- Edge Cases: API rate limits, authentication errors.
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- **Category rewrite**
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- Type: Code node
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- Role: Rewrites or normalizes blog post categories for consistency and SEO.
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- Configuration: Custom JavaScript code to process category text.
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- Inputs: Idea creator output.
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- Outputs: Cleaned category string.
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- Edge Cases: Code runtime errors or unexpected input data.
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- **Structured Output Parser**
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- Type: LangChain structured output parser
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- Role: Parses AI-generated structured data for consistency in downstream nodes.
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- Inputs: AI output from Idea creator.
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- Outputs: Parsed structured data.
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- Edge Cases: Parsing failures or invalid data structure.
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- **Check History**
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- Type: Google Sheets Tool
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- Role: Checks if the blog topic already exists in the Google Sheets log to prevent duplication.
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- Inputs: Proposed topic from Idea creator.
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- Outputs: Boolean or data indicating topic uniqueness.
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- Edge Cases: Google Sheets API failures, permission issues, or inconsistent data.
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---
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#### 1.3 Research Phase
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- **Overview:**
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Performs detailed research on the approved blog topic using Perplexity AI, cleans research data for content writing.
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- **Nodes Involved:**
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- Perplexity Research (HTTP Request)
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- Cleanup Links (Set)
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- **Node Details:**
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- **Perplexity Research**
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- Type: HTTP Request
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- Role: Queries Perplexity AI API to collect relevant research data on the topic.
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- Configuration: HTTP POST with topic query and API key.
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- Inputs: Category rewrite output (topic).
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- Outputs: Raw research data.
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- Edge Cases: API limits, network timeouts, malformed requests.
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- **Cleanup Links**
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- Type: Set node
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- Role: Cleans and formats research data, especially hyperlinks, for safe inclusion in content.
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- Configuration: Data transformation expressions to sanitize URLs and text.
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- Inputs: Perplexity Research output.
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- Outputs: Cleaned research content.
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- Edge Cases: Unexpected data formats causing expression failure.
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---
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#### 1.4 Content Generation
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- **Overview:**
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Generates a full-length SEO-optimized blog post, converts it to HTML, and prepares an excerpt.
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- **Nodes Involved:**
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- Content writer (LangChain chain LLM)
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- OpenAI 4.1 mini (LLM)
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- Cleanup HTML (Set)
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- Wordpress (WordPress node)
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- Excerpt creator (LangChain chain LLM)
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- OpenAI 4.1 mini2 (LLM)
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- WordPress excerpt add (HTTP Request)
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- Markdown (Markdown node)
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- **Node Details:**
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- **Content writer**
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- Type: LangChain chain LLM
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- Role: Writes the main blog article (2000-3000 words) using cleaned research and brand brief.
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- Configuration: Custom prompt with SEO and tone instructions; uses OpenAI 4.1 mini model.
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- Inputs: Cleaned research data.
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- Outputs: Blog post text.
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- Edge Cases: Model output truncation or API errors.
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- **OpenAI 4.1 mini**
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- Type: LangChain OpenAI chat LLM
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- Role: Provides language model processing for content writer node.
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- Inputs: Prompts from Content writer.
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- Outputs: Text completions.
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- Edge Cases: Same as other OpenAI nodes.
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- **Cleanup HTML**
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- Type: Set node
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- Role: Cleans and formats generated blog content to valid HTML for WordPress.
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- Configuration: Expression-based HTML sanitization and formatting.
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- Inputs: Content writer output.
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- Outputs: Clean HTML content.
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- Edge Cases: HTML malformation or expression failures.
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- **Wordpress**
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- Type: WordPress node
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- Role: Publishes the blog post on the target WordPress site.
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- Configuration: Uses WordPress credentials and API to create post with content, category, and metadata.
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- Inputs: Clean HTML content.
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- Outputs: Post creation confirmation and post ID.
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- Edge Cases: WordPress API errors, authentication failures.
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- **Excerpt creator**
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- Type: LangChain chain LLM
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- Role: Generates a concise excerpt or summary for the published post.
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- Inputs: Published post content or metadata.
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- Outputs: Excerpt text.
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- Edge Cases: API errors, output formatting issues.
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- **OpenAI 4.1 mini2**
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- Type: LangChain OpenAI chat LLM
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- Role: Supports excerpt creation with language model completions.
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- Inputs: Excerpt creator prompts.
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- Outputs: Excerpt text.
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- Edge Cases: Same as other OpenAI nodes.
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- **WordPress excerpt add**
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- Type: HTTP Request
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- Role: Updates the WordPress post with the generated excerpt via REST API.
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- Inputs: Excerpt text and post ID.
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- Outputs: API response confirmation.
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- Edge Cases: API permission errors or network issues.
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- **Markdown**
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- Type: Markdown node
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- Role: Converts excerpts or other text to Markdown format for logging or display if needed.
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- Inputs: Excerpt creator output.
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- Outputs: Markdown-formatted text.
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- Edge Cases: Markdown formatting issues.
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---
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#### 1.5 Featured Image Creation and Upload
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- **Overview:**
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Creates a context-specific featured image using AI, uploads it to imgbb, downloads it, then uploads and assigns it to the WordPress post.
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- **Nodes Involved:**
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- Write prompt to create image (LangChain chain LLM)
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- OpenAI 4.1 mini4 (LLM)
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- Create image open AI (HTTP Request)
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- Upload to imgbb (HTTP Request)
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- Download image (HTTP Request)
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- Upload Image to Wordpress1 (HTTP Request)
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- Set Image on Wordpress Post1 (HTTP Request)
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- **Node Details:**
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- **Write prompt to create image**
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- Type: LangChain chain LLM
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- Role: Generates an AI prompt for GPT Image 1 to create a visually relevant image aligned with the blog topic.
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- Inputs: Blog post content and metadata.
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- Outputs: Image prompt text.
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- Edge Cases: API failures or poor prompt generation.
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- **OpenAI 4.1 mini4**
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- Type: LangChain OpenAI chat LLM
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- Role: Supports image prompt generation with AI completions.
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- Inputs: Prompt generation requests.
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- Outputs: Prompt text.
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- Edge Cases: API limits.
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- **Create image open AI**
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- Type: HTTP Request
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- Role: Calls GPT Image 1 API to generate the image from the prompt.
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- Inputs: Image prompt.
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- Outputs: Image URL or binary data.
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- Edge Cases: API timeouts or generation failures.
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- **Upload to imgbb**
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- Type: HTTP Request
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- Role: Uploads the generated image to imgbb image hosting service for persistent storage and access.
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- Inputs: Image data from GPT Image 1.
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- Outputs: Hosted image URL.
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- Edge Cases: Upload failures, imgbb API limits.
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- **Download image**
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- Type: HTTP Request
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- Role: Downloads the hosted image from imgbb to prepare for WordPress upload.
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- Inputs: Hosted image URL.
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- Outputs: Binary image data.
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- Edge Cases: Network errors or broken URLs.
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- **Upload Image to Wordpress1**
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- Type: HTTP Request
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- Role: Uploads the image to WordPress media library via REST API.
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- Inputs: Binary image data.
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- Outputs: Media ID for the image on WordPress.
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- Edge Cases: API permission errors, upload failures.
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- **Set Image on Wordpress Post1**
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- Type: HTTP Request
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- Role: Assigns the uploaded image as the featured image of the published blog post.
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- Inputs: WordPress post ID and media ID.
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- Outputs: Update confirmation.
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- Edge Cases: API errors or ID mismatches.
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---
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#### 1.6 Post-Publication Actions
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- **Overview:**
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Updates Google Sheets logs with the new blog topic and publication data, and updates Notion for content tracking and analytics.
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- **Nodes Involved:**
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- Update list of blog post (Google Sheets)
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- Update base post (Google Sheets)
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- Notion
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- Aggregate
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- Edit Fields
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- When Executed by Another Workflow (Execute Workflow Trigger)
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- **Node Details:**
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- **Update list of blog post**
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- Type: Google Sheets node
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- Role: Adds the new blog topic to the topics list sheet for future uniqueness checks.
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- Inputs: Published post data.
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- Outputs: Confirmation or updated sheet data.
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- Edge Cases: API permission issues or sheet locking.
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- **Update base post**
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- Type: Google Sheets node
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- Role: Logs detailed publication history including dates and metadata.
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- Inputs: Post data from WordPress.
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- Outputs: Confirmation.
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- Edge Cases: Same as above.
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- **Notion**
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- Type: Notion node
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- Role: Adds or updates the blog post record in a Notion database for content management.
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- Inputs: Aggregated post data.
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- Outputs: Confirmation.
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- Edge Cases: Notion API limits or authentication errors.
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- **Aggregate**
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- Type: Aggregate node
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- Role: Aggregates data from Notion before updating or inserting.
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- Inputs: Notion node data.
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- Outputs: Aggregated results.
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- Edge Cases: Data aggregation failures.
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- **Edit Fields**
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- Type: Set node
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- Role: Adjusts or sets additional fields before final Notion update.
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- Inputs: Aggregated data.
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- Outputs: Edited data.
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- Edge Cases: Expression errors.
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- **When Executed by Another Workflow**
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- Type: Execute Workflow Trigger
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- Role: Allows this workflow to be triggered and fed data by external workflows.
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- Inputs: External workflow trigger.
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- Outputs: Starts Notion update process.
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- Edge Cases: Trigger data format mismatches.
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---
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### 3. Summary Table
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| Node Name | Node Type | Functional Role | Input Node(s) | Output Node(s) | Sticky Note |
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|-------------------------|--------------------------------|----------------------------------------------|---------------------------------------|-------------------------------------|-----------------------------------------|
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| Schedule Trigger | Schedule Trigger | Scheduled start trigger | None | Idea creator | |
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| When clicking ‘Test workflow’ | Manual Trigger | Manual start trigger | None | Idea creator | |
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| get brand brief | Sub-workflow Tool | Retrieves brand brief | Idea creator | Idea creator | |
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| Simple Memory | LangChain Memory Buffer | Provides AI memory context | Idea creator | Idea creator | |
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| Idea creator | LangChain Agent | Generates blog topic idea | Schedule Trigger, Manual Trigger, Brand Brief, Memory, History Check | Category rewrite, Structured Output Parser | |
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| OpenAI 4.1 mini3 | LangChain OpenAI Chat LLM | Supports idea generation | Idea creator | Idea creator | |
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| Category rewrite | Code | Cleans and normalizes category text | Idea creator | Perplexity Research | |
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| Structured Output Parser| LangChain Output Parser | Parses AI structured data | Idea creator | Idea creator | |
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| Check History | Google Sheets Tool | Checks topic uniqueness | Idea creator | Idea creator | |
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| Perplexity Research | HTTP Request | Researches topic via Perplexity AI | Category rewrite | Cleanup Links | |
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| Cleanup Links | Set | Cleans research data | Perplexity Research | Content writer | |
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| Content writer | LangChain Chain LLM | Writes full blog post | Cleanup Links | Cleanup HTML | |
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| OpenAI 4.1 mini | LangChain OpenAI Chat LLM | Supports content writing | Content writer | Content writer | |
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| Cleanup HTML | Set | Cleans and formats blog post HTML | Content writer | Wordpress | |
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| Wordpress | WordPress Node | Publishes blog post | Cleanup HTML | Write prompt to create image | |
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| Write prompt to create image | LangChain Chain LLM | Generates prompt for image creation | Wordpress | Create image open AI | |
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| OpenAI 4.1 mini4 | LangChain OpenAI Chat LLM | Supports image prompt creation | Write prompt to create image | Write prompt to create image | |
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||||
| Create image open AI | HTTP Request | Calls GPT Image 1 to create image | Write prompt to create image | Upload to imgbb | |
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| Upload to imgbb | HTTP Request | Uploads image to imgbb hosting | Create image open AI | Download image | |
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||||
| Download image | HTTP Request | Downloads image from imgbb | Upload to imgbb | Upload Image to Wordpress1 | |
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| Upload Image to Wordpress1 | HTTP Request | Uploads image to WordPress media library | Download image | Set Image on Wordpress Post1 | |
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| Set Image on Wordpress Post1 | HTTP Request | Assigns featured image to WordPress post | Upload Image to Wordpress1 | Excerpt creator | |
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| Excerpt creator | LangChain Chain LLM | Creates excerpt for blog post | Set Image on Wordpress Post1 | WordPress excerpt add | |
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| OpenAI 4.1 mini2 | LangChain OpenAI Chat LLM | Supports excerpt creation | Excerpt creator | Excerpt creator | |
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| WordPress excerpt add | HTTP Request | Adds excerpt to WordPress post | Excerpt creator | Markdown | |
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| Markdown | Markdown Node | Converts excerpt to Markdown | WordPress excerpt add | Update list of blog post | |
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| Update list of blog post | Google Sheets | Adds new topic to topics list | Markdown | Update base post | |
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| Update base post | Google Sheets | Updates publication history | Update list of blog post | None | |
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| Notion | Notion Node | Updates Notion content tracking | When Executed by Another Workflow | Aggregate | |
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| Aggregate | Aggregate Node | Aggregates data before Notion update | Notion | Edit Fields | |
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| Edit Fields | Set | Prepares data fields for Notion update | Aggregate | Notion | |
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||||
| When Executed by Another Workflow | Execute Workflow Trigger | Allows triggering from another workflow | External trigger | Notion | |
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||||
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||||
---
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||||
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||||
### 4. Reproducing the Workflow from Scratch
|
||||
|
||||
1. **Create Trigger Nodes**
|
||||
- Add a **Schedule Trigger** node to automate runs; configure your desired schedule.
|
||||
- Add a **Manual Trigger** node for manual testing.
|
||||
|
||||
2. **Set Up Brand Brief Retrieval**
|
||||
- Create or import a sub-workflow containing your brand brief data.
|
||||
- Add a **Tool Workflow** node configured to run that sub-workflow (“get brand brief”).
|
||||
|
||||
3. **Add AI Memory Node**
|
||||
- Add a **LangChain Memory Buffer Window** node (“Simple Memory”) to hold context for AI agent.
|
||||
|
||||
4. **Configure Idea Creator Agent**
|
||||
- Add a **LangChain Agent** node (“Idea creator”).
|
||||
- Connect triggers and brand brief inputs to this node.
|
||||
- Attach the AI memory node as the memory input.
|
||||
- Set up OpenAI credentials for the connected LLM nodes.
|
||||
|
||||
5. **Add OpenAI Model Nodes**
|
||||
- Add **LangChain OpenAI Chat** nodes for different roles: idea generation, content writing, excerpt creation, and image prompt generation:
|
||||
- OpenAI 4.1 mini3 (Idea generation)
|
||||
- OpenAI 4.1 mini (Content writing)
|
||||
- OpenAI 4.1 mini2 (Excerpt)
|
||||
- OpenAI 4.1 mini4 (Image prompt)
|
||||
|
||||
6. **Add Category Rewrite Code Node**
|
||||
- Create a **Code** node ("Category rewrite") with JavaScript to clean or normalize categories.
|
||||
|
||||
7. **Add Structured Output Parser**
|
||||
- Include a **LangChain Output Parser Structured** node to parse AI-generated structured responses.
|
||||
|
||||
8. **Add Google Sheets History Check**
|
||||
- Configure a **Google Sheets Tool** node (“Check History”) for verifying topic uniqueness.
|
||||
- Connect outputs from the Idea creator to this node.
|
||||
|
||||
9. **Add Perplexity Research HTTP Request**
|
||||
- Create an **HTTP Request** node ("Perplexity Research") calling the Perplexity AI API with the topic.
|
||||
- Configure authentication and parameters as per API docs.
|
||||
|
||||
10. **Add Cleanup Links Set Node**
|
||||
- Add a **Set** node to clean hyperlinks and research data formatting.
|
||||
|
||||
11. **Add Content Writer Chain LLM Node**
|
||||
- Use a **LangChain Chain LLM** node (“Content writer”) to generate the full blog post using cleaned research data.
|
||||
|
||||
12. **Add Cleanup HTML Node**
|
||||
- Add a **Set** node (“Cleanup HTML”) to sanitize and prepare the blog post for WordPress.
|
||||
|
||||
13. **Add WordPress Node**
|
||||
- Insert a **WordPress** node configured with your WordPress credentials to create new posts.
|
||||
|
||||
14. **Add Image Prompt Generation Chain LLM**
|
||||
- Add a **LangChain Chain LLM** node (“Write prompt to create image”) to generate image prompts.
|
||||
|
||||
15. **Add HTTP Request Nodes for Image Creation and Upload**
|
||||
- Create HTTP Request nodes for:
|
||||
- Calling GPT Image 1 API ("Create image open AI")
|
||||
- Uploading image to imgbb ("Upload to imgbb")
|
||||
- Downloading the imgbb image ("Download image")
|
||||
- Uploading image to WordPress media library ("Upload Image to Wordpress1")
|
||||
- Setting featured image on WordPress post ("Set Image on Wordpress Post1")
|
||||
|
||||
16. **Add Excerpt Creation and Posting Nodes**
|
||||
- Use a **LangChain Chain LLM** for excerpt creation ("Excerpt creator") with OpenAI 4.1 mini2.
|
||||
- Add an **HTTP Request** node ("WordPress excerpt add") to update the post excerpt.
|
||||
- Add a **Markdown** node if needed for formatting.
|
||||
|
||||
17. **Add Google Sheets Update Nodes**
|
||||
- Add two **Google Sheets** nodes to update:
|
||||
- Topic list ("Update list of blog post")
|
||||
- Publication history ("Update base post")
|
||||
|
||||
18. **Add Notion Integration Nodes**
|
||||
- Add a **Notion** node to update content management database.
|
||||
- Include **Aggregate** and **Set** nodes to prepare data for Notion.
|
||||
- Use an **Execute Workflow Trigger** node to allow external workflows to trigger Notion updates.
|
||||
|
||||
19. **Connect All Nodes in Logical Order**
|
||||
- Connect triggers → brand brief → idea creator → category rewrite → history check → research → cleanup → content writing → HTML cleanup → WordPress post → image prompt → image generation & upload → featured image set → excerpt creation → excerpt posting → Google Sheets & Notion updates.
|
||||
|
||||
20. **Configure Credentials**
|
||||
- Setup all required credentials for OpenAI, WordPress (OAuth2 or application password), Perplexity API, imgbb, Google Sheets, and Notion.
|
||||
|
||||
21. **Test Workflow**
|
||||
- Use manual trigger to test full flow, watch for errors, and adjust node configurations accordingly.
|
||||
|
||||
---
|
||||
|
||||
### 5. General Notes & Resources
|
||||
|
||||
| Note Content | Context or Link |
|
||||
|-----------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------|
|
||||
| This workflow uses GPT Image 1 for image generation, noted as the most reliable current image generator. | Branding and image quality assurance |
|
||||
| Automated blog publishing reduces manual writing and publishing time drastically, ideal for busy creators and solopreneurs. | Workflow purpose |
|
||||
| Includes a sub-workflow for storing and retrieving brand brief data to maintain consistent article tone and style. | Sub-workflow integration |
|
||||
| The workflow updates two Google Sheets documents: one for topic history to prevent duplication and one for publication tracking. | Data integrity and logging |
|
||||
| Supports both scheduled runs and manual testing via triggers. | Flexibility in workflow execution |
|
||||
| Uses Perplexity AI API for research, ensuring articles are fact-based and SEO optimized. | Research quality |
|
||||
| OpenAI API credentials are required with proper scopes and rate limits considered for stable operation. | Integration requirements |
|
||||
| WordPress requires REST API access with credentials that allow content creation and media upload. | WordPress integration |
|
||||
| imgbb is used as an image hosting service for reliable image storage and CDN delivery. | Image hosting |
|
||||
| Notion integration supports content management and analytics, facilitating editorial workflows and performance tracking. | Content management |
|
||||
| For detailed setup instructions and API key configuration, refer to the included quick-start PDF guide provided with the workflow package. | User onboarding |
|
||||
|
||||
---
|
||||
|
||||
This comprehensive reference document captures the entire structure, logic, and configuration details of the "Automated Blog Content Creator for WordPress with GPT Image 1 & Perplexity" workflow. It enables deep understanding, error anticipation, and full reproducibility for developers and automation agents alike.
|
||||
Reference in New Issue
Block a user