ETAG support

Read more about How ETAG works!

Search API & ETAG

Search response contains etag information in the etag header and in meta.versionId. You can cache result and use If-None-Match header or _etag parameter to get newest data from the server or a response with the status 304 if nothing has been changed.

GET /Patient
​
# resp
status: 200
headers:
  ETag: '999'
body:
  meta: {versionId: '999'}
  ....
​
# you can cache response and versionId
​
# get 
GET /Patient?_etag=999 # laset versionId
If-None-Match: 999
​
# resp
status: 304
​
# if etag is old you will get result
GET /Patient?_etag=99
​
# resp
status: 200
body:
  meta: {versionId: '999'}
​

ETag Cache

All etag values are cached to make etag queries efficient. If you somehow made this cache invalid, you can reset Aidbox etag cache by DELETE /$etags-cache or DELETE /Patient/$etags-cache.