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davidr0007
davidr0007
February 17, 2026
Question

Exposed WebAPI GET request size limit?

  • February 17, 2026
  • 2 replies
  • 0 views

I have found information regarding a 5MB limit when my Appian application uses an Integration Object to call another API hosted on an external system.

However, if my Appian application is exposing a WebAPI, so that an external system can make a GET request to my Appian application, is there a size limit on the JSON payload that my Appian WebAPI can return to that external system?

2 replies

shubhama926776
shubhama926776
February 17, 2026

No official size limit on Web API GET JSON responses, but use pagination to stay under practical memory/timeout constraints (~10MB recommended).
URL length limits GET params (~8K chars); switch to POST for larger payloads.

stefanhelzle0001
stefanhelzle0001
February 17, 2026

With data volumes growing every day, you will have to implement paging and a page size limits anyways.

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