Percent Encode Strings for OAuth and Redirects

🧩 Problem

State and token params break redirects when unencoded. When malformed or unstructured data hits routers, filters, or API connectors, entire automations halt or silently drop records. Teams end up retrying runs, hand-editing payloads, and explaining delays to customers.

💡 Why This Happens

Special characters are not escaped before redirect or callback. Most automation platforms assume well-formed payloads and do minimal validation. AI models, third-party APIs, and changing vendor schemas drift over time, mixing encodings, formats, and unexpected fields that downstream steps cannot tolerate.

🚀 The Fix: Percent Encode (API Endpoint)

Use this endpoint to solve the problem reliably inside Zapier, Make.com, n8n, Retool.

Endpoint

POST https://api.postthatgetthis.com/percent/encode

Example Input

state=abc123&redirect=https://example.com/next step

Example Output

state%3Dabc123%26redirect%3Dhttps%3A%2F%2Fexample.com%2Fnext%20step

📦 What This Solves

• Safe redirect params
• Avoid broken callbacks
• Great for OAuth state

Not seeing your exact problem? Tell us what’s breaking in your workflow and we’ll help fix it: Submit A Problem.

🔗 Related Use Cases

• Percent Decode Strings
• URL Encode Params

👉 Try it now

Use this endpoint directly in your automation tool. POST → get cleaned, structured data. Every time.