Increase the payload size limit of API Gateway

Question

Hi,

While I am able to send a relatively smaller CSV file through the API Gateway to S3 it's successful. But when trying to send a moderately larger CSV file through the created API Gateway I receive the following error;
'HTTP content length exceeded 10485760 bytes'

Is it possible to increase the API gateway payload size limit in AWS?

Answer

No, it can not be increased, [API Gateway quotas for configuring and running a REST API](https://docs.aws.amazon.com/apigateway/latest/developerguide/limits.html#api-gateway-execution-service-limits-table).

You can use a different architecture to get around this limitation but still use API Gateway. See: [Patterns for building an API to upload files to Amazon S3](https://aws.amazon.com/blogs/compute/patterns-for-building-an-api-to-upload-files-to-amazon-s3/)

Answer

According to this Payload size is 10 MB and can not be increased. https://docs.aws.amazon.com/apigateway/latest/developerguide/limits.html
![Enter image description here](/media/postImages/original/IMbdT49ABFSnC3zuueatc79Q)

Instead of posting the data directly to the API endpoint, you can generate a PreSigned S3 URL and upload using it. If any subsequent processing of the data is needed you will use S3 notifications and Lambda after the upload is completed.

Hope this helps.

Answer

API Gateway has a hard limit of 10MB for the payload size. It can't be increased.

The recommendation in these cases is to generate an S3 pre-signed URL and use it to upload the file to S3 and process it from there.

Increase the payload size limit of API Gateway

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