Description

n8n-nodes-postfast

This is an n8n community node for PostFast – a comprehensive social media management and scheduling platform. It allows you to create, manage, and schedule posts across multiple social media channels directly from your n8n workflows.

Node Name in n8n: PostFast – Social Media Management

Features

• 🚀 Multi-Platform Support: Facebook, Instagram, TikTok, Twitter/X, LinkedIn, YouTube, Pinterest
• 📸 Media Management: Upload images and videos with pre-signed S3 URLs
• 📅 Advanced Scheduling: Schedule posts using UTC timestamps (ISO 8601 format)
• 🎯 Platform-Specific Controls: Reels, Stories, Shorts, Carousels, Drafts
• 🔍 Smart Filtering: Query posts by platform, status, and date ranges
• 📊 Pagination Support: Handle large datasets efficiently
• 🔐 Secure Authentication: API key-based authentication

Installation

In n8n (Recommended)

1. Go to Settings > Community Nodes
2. Search for n8n-nodes-postfast
3. Click Install

Manual Installation

npm install n8n-nodes-postfast

Authentication

To use this node, you'll need:

1. PostFast API Key:

   • Log in to your PostFast account
   • Navigate to Settings → API Keys
   • Create a new API key
   • Copy the key (you won't be able to see it again)

2. Add Credentials in n8n:

   • In n8n, go to Credentials
   • Create new "PostFast API" credentials
   • Enter your API key

Resources & Operations

📁 File Resource

Get Upload URL

Generate pre-signed S3 URLs for uploading media files.

Parameters:

• Content Type: MIME type (image/jpeg, image/png, image/gif, video/mp4, video/quicktime)
• Count: Number of URLs to generate (1-10)

Limits:

• Max file size: 250 MB (video), 10 MB (image)
• Rate limit: 150 requests per day

Usage Example:

1. Use this operation to get S3 upload URLs
2. Upload your files directly to S3 using the signed URLs
3. Use the returned key in your social posts

👥 Social Account Resource

Get All

Retrieve all connected social media accounts for your workspace.

Returns:

• Account IDs (needed for posting)
• Platform types
• Account names and handles
• Connection status

Rate limit: 90 requests per hour

📝 Social Post Resource

Create Post

Create and schedule posts with platform-specific features.

Core Parameters:

• Platform: Facebook, Instagram, TikTok, Twitter/X, LinkedIn, YouTube, Pinterest
• Social Media Account ID: From Social Account > Get All
• Content: Post text with emoji support
• Scheduled At: ISO 8601 datetime
• Media Items: Images/videos with S3 keys

Platform-Specific Controls:

Facebook:

• Content Types: Post, Reel, Story
• Multi-image support
• Video thumbnails

Instagram:

• Publish Types: Timeline, Story, Reel
• Grid posting option
• Carousel support (up to 10 items)

TikTok:

• Privacy: Public, Friends, Private
• Allow Comments/Duet/Stitch
• Draft mode
• Carousel posts (2-35 images)
• Video covers

YouTube:

• Shorts support
• Video thumbnails

LinkedIn:

• Visibility: Anyone, Connections
• Professional content

Pinterest:

• Board selection
• Rich pins

Get Many Posts

Query and filter your scheduled posts with advanced options.

Filter Options:

• Platforms: Filter by one or more platforms
• Statuses: DRAFT, SCHEDULED, PUBLISHED, FAILED
• Date Range: From/To dates (ISO 8601)
• Pagination: Page-based navigation

Return Options:

• Return all results (auto-pagination)
• Limit results (1-50 per page)

Response Includes:

• Post content and media
• Scheduling information
• Publishing status
• Error messages (for failed posts)
• Platform-specific metadata

Delete Post

Remove scheduled or failed posts.

Parameters:

• Post ID: Unique identifier of the post

Rate limit: 160 requests per hour

Workflow Examples

1. Content Calendar Automation

Notion Database → PostFast (Create) → Multiple Platforms

Pull content from Notion and schedule across all platforms.

2. Media Processing Pipeline

Dropbox → Image Processing → PostFast (Get Upload URL) → S3 Upload → PostFast (Create)

Process images and videos before posting.

3. Failed Post Recovery

Schedule Trigger → PostFast (Get Many: status=FAILED) → Error Handler → Retry/Notify

Monitor and handle failed posts automatically.

4. Cross-Platform Campaign

RSS Feed → AI Content Generator → PostFast (Create: Multiple Platforms)

Generate and distribute content across all channels.

Rate Limits

Global Limits (per API key):

• 60 requests per minute
• 150 requests per 5 minutes
• 300 requests per hour
• 1000 requests per day

Endpoint-Specific:

• File uploads: 150/day
• Post creation: 75/day
• Post queries: 90/hour
• Post deletion: 160/hour

Error Handling

The node provides detailed error messages for common scenarios:

• 401: Invalid API key
• 404: Resource not found (check IDs)
• 429: Rate limit exceeded
• 400: Invalid parameters

Platform Requirements

• Node.js: v18.0.0 or higher
• n8n: v1.0.0 or higher
• API Key: PostFast workspace API key

Advanced Features

Batch Operations

Process multiple items in a single workflow execution for efficiency.

Error Recovery

Built-in error handling with detailed messages for debugging.

Pagination Handling

Automatic pagination when fetching all results.

Media Validation

Automatic MIME type detection and size validation.

Development

Setup

git clone https://github.com/peturgeorgievv/n8n-nodes-postfast.git
cd n8n-nodes-postfast
npm install

Testing

npm run dev     # Start development server
npm run build   # Build for production
npm run lint    # Check code quality

Publishing

npm login
npm publish --access public

Support

• Documentation: PostFast API Docs
• Issues: GitHub Issues
• Community: n8n Community Forum
• Developer Support: me@peturgeorgievv.com

License

MIT

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

Changelog

v0.1.0

• Initial release with full PostFast API support
• Multi-platform posting capabilities
• Advanced filtering and pagination
• Media upload management
• Platform-specific controls for all major social networks