01. Content Concept Generation

Purpose: This step uses Google Gemini to generate one unique content concept tailored for the specified platform (Instagram/LinkedIn), based on the input topic, audience, and brand voice. The format is fixed to "Single Image".

Input (from Node '2. Prepare Input Variables'):

• Topic (string)
• TargetAudience (string)
• BrandVoice (string)
• Platform (string: 'Instagram' )

Output (JSON):

• {"ideas": [{"concept": "Generated concept text...", "suggested_format": "Single Image"}]}

03b. Image Generation

Purpose: Generates the actual image using the first detailed prompt created in step 3b. It sends this prompt to the Replicate API, specifically using the 'Flux 1.1 Pro Ultra' model.

Input (from Node '3b. Generate Image Prompt Options'):

• prompt (string: The first prompt string from prompt_options[0].prompts[0])

Output (from Replicate API):

• JSON containing the output URL of the generated image (e.g., {"output": "https://replicate.delivery/..."})

02. Image Prompt Elaboration & Options

Purpose: Takes the generated content concept and expands on it to create two distinct, detailed image generation prompts. These prompts are optimized for the target platform and suitable for AI image generators like Replicate Flux.

Input (from Nodes '2. Prepare Input Variables' & '3a. Generate Content Concept'):

• ChosenIdea (string: Concept from step 3a)
• OriginalTopic (string)
• TargetAudience (string)
• BrandVoice (string)
• Platform (string: 'Instagram')

Output (JSON):

• {"expanded_post_concept": "Elaborated concept description...", "prompt_options": [{"option_description": "Option 1: ...", "prompts": ["Detailed prompt 1..."]}, {"option_description": "Option 2: ...", "prompts": ["Detailed prompt 2..."]}]}

03a. Caption Generation

Purpose: Uses Google Gemini to write a short, engaging social media caption specifically tailored for the target platform. The caption complements the image (represented by the first generated prompt) and aligns with the overall content strategy. Includes relevant hashtags.

Input (from Nodes '1. Get Next Post Idea', '3a. Generate Content Concept', '3b. Generate Image Prompt Options'):

• ImagePrompt (string: The first prompt from step 3b)
• ChosenIdea (string: Concept from step 3a)
• OriginalTopic (string)
• TargetAudience (string)
• BrandVoice (string)
• Platform (string: 'Instagram' or 'LinkedIn')

Output (JSON):

• {"Caption": "Generated caption text with #hashtags..."}

04. Instagram Publishing

Purpose: This block takes the final image URL and caption, prepares them for the Instagram Graph API, uploads the media to create a container, waits for Instagram to process it, and finally publishes the container as a post to the connected Instagram account.

Input (from Nodes '3c. Generate Post Caption (Gemini)' & '4. Generate Image using Prompt 1 (Replicate Flux)'):

• ImageURL (string: URL of the generated image from Replicate)
• Caption (string: Generated post text with hashtags from Gemini)

Process:

1. Format Data (5. Prepare Data...): Organizes the ImageURL and Caption into the required structure.
2. Create Media Container (6a. Create...): Sends the image_url and caption to the Instagram Graph API (media edge) to initiate the upload. Receives a container id.
3. Wait for Processing (6b. Wait...): Pauses the workflow to allow Instagram's servers time to process the uploaded media. Note: Wait time might need adjustment depending on media size and API responsiveness.
4. Publish Media (6c. Publish...): Sends the container id (as creation_id) to the Instagram Graph API (media_publish edge) to make the post live.

Output: The content is published as a new post on the target Instagram profile. The final node (6c. Publish Post...) returns the id of the successfully published media object on Instagram.

05. Finalize: Update Sheet Status

Purpose: Marks the processed post idea as completed in the Google Sheet.

Action: Finds the corresponding row in the sheet (using the 'Topic' to match) and updates its 'Status' column to '1'. This prevents the same idea from being processed again by the workflow in future runs.

00. Scheduled Start & Input Preparation

Purpose: Initiates the workflow automatically based on the user-defined schedule. Fetches the next available post idea (Status=0) from Google Sheets and prepares the necessary input variables (Topic, Audience, Voice, Platform) for the content generation steps.

receive schedule events and google sheets and chain llm

Purpose and structure

This folder contains the receive schedule events and google sheets and chain llm workflow. Its executable nodes use chainLlm, facebookGraphApi, googleSheets, httpRequest, lmChatGoogleGemini, outputParserStructured, scheduleTrigger, set, wait. The table and connection map below are derived from the JSON, not an inferred guarantee of behavior.

Setup

Import inactive. Configure your own credentials and replace REPLACE_WITH_* values. Review external destinations and Code nodes before running.

Entry points

Scheduled Start: Check for New Posts

Verification

Sanitized source candidate; not runtime-tested. This overview is generated from node metadata. Read the folder README for the connection map, credential types, and license.

Attribution

https://github.com/Zie619/n8n-workflows/blob/94007c1445d9258a7da116646b79473e7c7c3282/workflows/Wait/0905_Wait_Schedule_Create_Webhook.json MIT; preserve source notices.