Troubleshooting API Requests

Troubleshooting API Requests

Last Updated On July 07, 2019
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While using the API Connector add-on for Google Sheets, there may be cases where your API request doesn’t work, or returns an error message. This article will describe some known issues and ways to troubleshoot issues with your API requests.

Authorization Errors

Make sure you’ve entered any required authorization credentials into the Headers table, and that you’ve encoded them to Base 64 if required.

Error Messages

Pay attention to any error details as they will alert you to specific fields that need to be addressed. This article on Error Messages provides more details on each message.

Missing Output Rows

Many API servers return only a limited number of rows in each response. To receive additional rows, there is usually some kind of pagination system, where you need to add parameters for page number and starting index. Consult the API documentation for specifics, looking for terms like “page” and “limit”.

Non-JSON Response Types

API Connector currently only supports JSON responses. This means that if your response is in text or XML, the request won’t work. Most APIs provide a JSON option, so look for a JSON endpoint to resolve this error.

Quotas and Limits

The API you’re accessing may limit the number or rate of requests. Google Sheets itself also has built-in limits, as documented here: To avoid inadvertently reaching these limits, limit triggers and queries where possible (e.g. don’t run hourly refreshes if you only need daily).

Request Form Syntax Errors

When you’re reading API documentation, you’ll likely see examples based on different coding languages. Don’t copy these in directly — API Connector is a no-code method of interaction with APIs, so pasting in code snippets won’t work. Just type in the URL, any headers, and other options. Check the quick start for an example of what a completed API request looks like.

Restricted User Agent

Google Apps script doesn’t enable custom user agents. This means any request from API Connector will use Google’s default user agent ‘Mozilla/5.0 (compatible; Google-Apps-Script)’. Unfortunately certain APIs may block requests from Google’s User Agent. If that is the case, you will need to ask the platform to lift this restriction on their API.

Restricted IP Address

All requests from API Connector will be sent through Google’s servers, and will therefore appear to come from an IP address associated with Google Inc. This may prevent a request from resolving if the API server has blocked requests from Google’s IP addresses. This also means you can’t directly query your own device’s location through a geolocation API.

Un-even/Mismatched Output Rows

As JSON API responses aren’t specifically designed for spreadsheets, the API Connector add-on uses logic to convert JSON responses into a tabular format for Google Sheets. In certain cases, this results in mismatched output rows. JSON Transformation to Rows/Columns contains more details on when and why this happens.


Still having trouble? Check the knowledge base or send a message through the API Connector Contact Form. You’ll receive a response shortly!


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