Database metadata

Reading or writing database documents requires an admin key.

Problem

You want to store additional metadata within a database document.

Solution

Set the data field in a database:

try
{
    Value result = await client.Query(
        Update(Database("llyr"), Obj("data", Obj("env", "test")))
    );
    Console.WriteLine(result);
}
catch (Exception e)
{
    Console.WriteLine($"ERROR: {e.Message}");
}
ObjectV(ref: RefV(id = "llyr", collection = RefV(id = "databases")),ts: LongV(1622573463870000),name: StringV(llyr),data: ObjectV(env: StringV(test)),global_id: StringV(yoijia8e1ybyy))
result, err := adminClient.Query(
	f.Update(
		f.Database("llyr"),
		f.Obj{"data": f.Obj{"env": "test"}},
	))

if err != nil {
	fmt.Fprintln(os.Stderr, err)
} else {
	fmt.Println(result)
}
map[data:map[env:test] global_id:yoiji3uwcybyy name:llyr ref:{llyr 0xc00011da10 0xc00011da10 <nil>} ts:1622573473320000]
System.out.println(
        adminClient.query(
            Update(
                Database(Value("llyr")),
                Obj("data", Obj("env", Value("test")))
            )
        ).get());
{ref: ref(id = "llyr", collection = ref(id = "databases")), ts: 1622573501510000, name: "llyr", data: {env: "test"}, global_id: "yoiji48irybyy"}
adminClient.query(
  q.Update(q.Database('llyr'), { data: { env: 'test' } })
)
.then((ret) => console.log(ret))
.catch((err) => console.error(
  'Error: [%s] %s: %s',
  err.name,
  err.message,
  err.errors()[0].description,
))
{
  ref: Database("llyr"),
  ts: 1622573509680000,
  name: 'llyr',
  data: { env: 'test' },
  global_id: 'yoiji573cydyy'
}
result = adminClient.query(
  q.update(q.database("llyr"), {"data": {"env": "test"}})
)
print(result)
{'ref': Ref(id=llyr, collection=Ref(id=databases)), 'ts': 1622573512400000, 'name': 'llyr', 'data': {'env': 'test'}, 'global_id': 'yoijihdqgydyy'}
Update(Database('llyr'), { data: { env: 'test' } })
{
  ref: Database("llyr"),
  ts: 1624310577730000,
  name: 'llyr',
  data: { env: 'test' },
  global_id: 'yoat8nnggybyy'
}
Query metrics:
  •    bytesIn:   85

  •   bytesOut:  170

  • computeOps:    1

  •    readOps:    0

  •   writeOps:    1

  •  readBytes:  243

  • writeBytes:  243

  •  queryTime: 17ms

  •    retries:    0

Discussion

It is not possible to revise the parent database, the current database, or any of the current database’s peers using Update. You can only add metadata to the documents that describe child databases.

More information

Was this article helpful? 

We're sorry to hear that.
Tell us how we can improve!
Visit Fauna's forums or email docs@fauna.com

Thank you for your feedback!