GET ServiceRequest endpoint with _id param maximum allowed size

[pravin tamnar]

Hi, I recently validating the GET ServiceRequest endpoint with _id param and

found that it allows multiple ids with comma separated but i doesn't found the max number of id's accepted in this parameter at once in api doc.

https://fhir.cerner.com/millennium/r4/clinical/care-provision/service-request/#search

While trying multiple scenario i realize that it allows 100 max ids, can anyone confirm is my understanding is correct or it rejects requests based on payload size?

Error returned after 100 ids used comma separated.

400 Bad Request

{

"resourceType": "OperationOutcome",

"issue": [

{

"severity": "error",

"code": "invalid",

"details": {

"text": "Invalid request"

}

}

]

}

Thanks,

Pravin

[Nishanth Namana (Cerner)]

Hello Pravin,

We do have a constraint on maximum number of id's that can be used for _id param. But that varies by resource. It doesn't depend on the payload size.

Thank you,

Nishanth Namana (Cerner).

[pravin tamnar]

Thanks Nishanth, 

Can you please confirm the maximum number of id's that can be used for _id param for a resource is same for all environment? and 100 is the correct maximum allowed value for ServiceRequest?

Thanks,

Pravin