FQL v4 will be decommissioned on June 30, 2025. Ensure that you complete your migration from FQL v4 to FQL v10 by that date.

Fauna accounts created after August 21, 2024 must use FQL v10. These accounts will not be able to run FQL v4 queries or access the v4 Dashboard.

For more details, see the v4 EOL announcement and migration guide. Contact support@fauna.com with any questions.

Get an index document

Problem

You need to retrieve the document that describes an index from the current database.

Solution

Use the Get function:

client.query(
  q.Get(q.Index('all_people'))
)
.then((ret) => console.log(ret))
.catch((err) => console.error(
  'Error: [%s] %s: %s',
  err.name,
  err.message,
  err.errors()[0].description,
))
{
  ref: Index("all_people"),
  ts: 1631909326360000,
  active: true,
  serialized: true,
  name: 'all_people',
  source: Collection("People"),
  values: [
    { field: [ 'data', 'first' ] },
    { field: [ 'data', 'last' ] },
    { field: [ 'ref' ] }
  ],
  partitions: 8
}
result = client.query(
  q.get(q.index("all_people"))
)
print(result)
{'ref': Ref(id=all_people, collection=Ref(id=indexes)), 'ts': 1631911190460000, 'active': True, 'serialized': True, 'name': 'all_people', 'source': Ref(id=People, collection=Ref(id=collections)), 'values': [{'field': ['data', 'first']}, {'field': ['data', 'last']}, {'field': ['ref']}], 'partitions': 8}
result, err := client.Query(
	f.Get(f.Index("all_people")))

if err != nil {
	fmt.Fprintln(os.Stderr, err)
} else {
	fmt.Println(result)
}
map[active:true name:all_people partitions:8 ref:{all_people 0xc0000924b0 0xc0000924b0 <nil>} serialized:true source:{People 0xc0000925a0 0xc0000925a0 <nil>} ts:1631912050530000 values:[map[field:[data first]] map[field:[data last]] map[field:[ref]]]]
try
{
    Value result = await client.Query(
        Get(Index("all_people"))
    );
    Console.WriteLine(result);
}
catch (Exception e)
{
    Console.WriteLine($"ERROR: {e.Message}");
}
ObjectV(ref: RefV(id = "all_people", collection = RefV(id = "indexes")),ts: LongV(1632032492710000),active: BooleanV(True),serialized: BooleanV(True),name: StringV(all_people),source: RefV(id = "People", collection = RefV(id = "collections")),values: Arr(ObjectV(field: Arr(StringV(data), StringV(first))), ObjectV(field: Arr(StringV(data), StringV(last))), ObjectV(field: Arr(StringV(ref)))),partitions: LongV(8))
System.out.println(
    client.query(
        Get(Index("all_people"))
    ).get());
{ref: ref(id = "all_people", collection = ref(id = "indexes")), ts: 1632028043350000, active: true, serialized: true, name: "all_people", source: ref(id = "People", collection = ref(id = "collections")), values: [{field: ["data", "first"]}, {field: ["data", "last"]}, {field: ["ref"]}], partitions: 8}
Get(Index("all_people"))
{
  ref: Index("all_people"),
  ts: 1631835750270000,
  active: true,
  serialized: true,
  name: 'all_people',
  source: Collection("People"),
  values: [
    { field: [ 'data', 'first' ] },
    { field: [ 'data', 'last' ] },
    { field: [ 'ref' ] }
  ],
  partitions: 8
}
Query metrics:
  •    bytesIn:   30

  •   bytesOut:  336

  • computeOps:    1

  •    readOps:    1

  •   writeOps:    0

  •  readBytes:  169

  • writeBytes:    0

  •  queryTime: 88ms

  •    retries:    0

Is this article helpful? 

Tell Fauna how the article can be improved:
Visit Fauna's forums or email docs@fauna.com

Thank you for your feedback!