Description:
Execute head command and return a table sequence.
Syntax:
es_head (fd, endpoint)
Note:
The external library function (See External Library Guide) checks whether a document or a record exists or not. The response value is 200 OK if the document/record exist; otherwise, the response value is 404 Not Found.
Parameter:
|
fd |
A REST Client object |
|
endpoint |
The address of to-be-checked document/record |
Return value:
A table sequence
Example:
|
|
A |
|
|
1 |
=es_open("localhost:9200","user":"un1234") |
Connect to ES server. |
|
2 |
=es_head(A1,"/accounts/person/1") |
Check whether the record where index is accounts, type is person and id is 1 exists or not. |