This n8n workflow automates handling API rate limits or transient failures when working with Google APIs, such as Google Sheets. It employs an exponential backoff strategy to retry failed requests with increasing delay times, preventing exceeding API quotas and reducing errors.
The workflow begins with a manual trigger, allowing users to initiate the process conveniently. It then enters a loop to process each item from a Google Sheet specified by its document URL, with the Google Sheets node configured to continue on errors.
Within each loop, it calculates the delay time using exponential backoff logic implemented in a Code node. The calculated wait time is dynamically assigned, and the workflow pauses for that duration before attempting again.
A Wait node enforces the calculated delay, after which the process checks if the maximum number of retries has been exceeded. If retries remain, it increments the retry counter and loops back to attempt the API request again. If the retry limit is reached, the workflow halts further retries and triggers the Stop and Error node, logging a specific error message.
This setup is particularly useful in scenarios where API rate limits might be hit or temporary issues occur, ensuring smooth operation without overwhelming the API, and providing a controlled retry mechanism.
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