Post branded Instagram testimonial cards from Airtable with Bannerbear and uploadtourl

Convert your customer satisfaction into high-converting social media content with this fully automated social proof pipeline. This workflow scans your database for top-tier reviews, generates a branded quote card, and publishes it directly to Instagram, ensuring a consistent stream of credibility for your brand. --- 🎯 What This Workflow Does This template manages the entire lifecycle of a testimonial post, from data retrieval to final notification: --- 🔄 Review Dispatch Automation - Schedule Trigger: Automatically fires daily at 10:00 AM; cadence can be adjusted via cron expression. - Airtable — Fetch Review: Retrieves the oldest 5-star, unposted record using a specific filter formula to prevent duplicates. - IF — Has Valid Review?: Validates the data; the workflow exits gracefully if no new reviews are found and only proceeds when a 5-star review is ready. --- ✍️🎨 Dynamic Asset Generation - Code — Prepare Payload: Formats review data into a JSON body, mapping fields like name and truncated text to Bannerbear layers while generating the final Instagram caption. - HTTP — Create Image Job: Submits the request to the Bannerbear API and retrieves a unique job uid for asynchronous processing. --- 🔁 Status Verification & Media Hosting - HTTP — Poll Status: Regularly checks the job status via the Bannerbear API to see if the rendering is finished. - IF — Image Ready?: Confirms completion; if still processing, it triggers a "Wait 3s + re-poll" loop for up to 5 retries before passing the imageurl forward. - uploadtourl Bridge: Mandatory CDN step that uploads the rendered image binary and returns a stable public URL, which is required for Instagram's API to access the file. --- 📸 Instagram Publishing & Tracking - IG — Create & Publish: Executes the two-step Instagram Graph API flow to create a media container and publish it to your feed after a safe 6-second buffer. - Airtable — Mark as Posted: Updates the original record with the Post ID and timestamp to prevent duplicate posting. - Slack Notification: Sends a final team alert with a preview of the card and the live link. --- ✨ Key Features - Adaptive Polling: Instead of a static wait time, the workflow intelligently polls Bannerbear until the image is confirmed ready. - Automated CDN Bridge: Uses uploadtourl to bypass Instagram's rejection of base64/binary payloads by providing a direct public URL. - Intelligent Truncation: Automatically shortens long reviews to 180 characters to ensure perfect readability on your branded quote card. - Full Audit Trail: Every post is logged back to Airtable with its live Instagram ID and CDN URL for easy reporting. --- 💼 Perfect For - SaaS Companies: Showcasing user feedback and "Love letters" from customers. - E-commerce Brands: Sharing 5-star product reviews to build buyer confidence. - Service Providers: Highlighting client testimonials on a regular schedule. - Digital Marketers: Automating the "Social Proof" pillar of a social media strategy. --- 🔧 What You'll Need Required Integrations - Bannerbear: API key and a Template ID with layers named reviewername, reviewtext, and starlabel. - Instagram Graph API: A Business or Creator account access token. - uploadtourl: Credentials configured in n8n for mandatory media hosting. - Airtable: A base with a Reviews table containing fields for the name, text, and rating.