Multi GET API allows to get multiple documents based on an index, type (optional) and id (and possibly routing). The response includes a doc array with all the documents each element similar in structure to the get API. Here is an example:
curl 'localhost:9200/_mget' -d '{
"docs" : [
{
"_index" : "test",
"_type" : "type",
"_id" : "1"
},
{
"_index" : "test",
"_type" : "type",
"_id" : "2"
}
]
}'
The mget endpoint can also be used against an index (in which case its not required in the body):
curl 'localhost:9200/test/_mget' -d '{
"docs" : [
{
"_type" : "type",
"_id" : "1"
},
{
"_type" : "type",
"_id" : "2"
}
]
}'
And type:
curl 'localhost:9200/test/type/_mget' -d '{
"docs" : [
{
"_id" : "1"
},
{
"_id" : "2"
}
]
}'
In which case, the ids element can directly be used to simplify the request:
curl 'localhost:9200/test/type/_mget' -d '{
"ids" : ["1", "2"]
}'
Fields
Specific fields can be specified to be retrieved per document to get. For example:
curl 'localhost:9200/_mget' -d '{
"docs" : [
{
"_index" : "test",
"_type" : "type",
"_id" : "1",
"fields" : ["field1", "field2"]
},
{
"_index" : "test",
"_type" : "type",
"_id" : "2",
"fields" : ["field3", "field4"]
}
]
}'
