CurrentToken

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()

Description

The CurrentToken function returns information about the active authentication:

  • When a token is used, a Reference to the token document is returned.

  • When a key is used, and the key exists in the current database (and not in a parent database), a Reference to the key document is returned.

  • When authentication is performed by an identity provider, an object containing the active JWT’s claims is returned.

For all other cases, CurrentToken emits an error. These cases include:

  • Authentication uses the "root" Fauna secret.

  • Authentication uses a key that has the database field set.

  • Authentication uses a key that exists in a parent database, for example, when using a scoped key.

Parameters

None.

Returns

For tokens, and keys defined in the current database, a Reference to the associated token/key.

For JWTs, an object containing the claims from the active JWT.

For connections using the "root" Fauna key, or a key that has the database field defined, an error is returned.

Examples

  1. The following query runs in the context of a Fauna token:

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    client.query(
  q.()
)
.then((ret) => console.log(ret))
.catch((err) => console.error(
  'Error: [%s] %s: %s',
  err.name,
  err.message,
  err.errors()[0].description,
))
    ((), "1")
    Query metrics:

    •    bytesIn:  22

    •   bytesOut:  70

    • computeOps:   1

    •    readOps:   0

    •   writeOps:   0

    •  readBytes:  96

    • writeBytes:   0

    •  queryTime: 7ms

    •    retries:   0

  2. The following query runs in the context of a Fauna key:

    Copied!
    client.query(
  q.()
)
.then((ret) => console.log(ret))
.catch((err) => console.error(
  'Error: [%s] %s: %s',
  err.name,
  err.message,
  err.errors()[0].description,
))
    ((), "1")
    Query metrics:

    •    bytesIn:    22

    •   bytesOut:    68

    • computeOps:     1

    •    readOps:     0

    •   writeOps:     0

    •  readBytes:     0

    • writeBytes:     0

    •  queryTime: 343ms

    •    retries:     0

  3. The following query runs in the context of a Fauna key defined in a parent database:

    Copied!
    client.query(
  q.()
)
.then((ret) => console.log(ret))
.catch((err) => console.error(
  'Error: [%s] %s: %s',
  err.name,
  err.message,
  err.errors()[0].description,
))
    Error: [BadRequest] invalid token: Token metadata is not accessible.
    Query metrics:

    •    bytesIn:  22

    •   bytesOut: 101

    • computeOps:   1

    •    readOps:   0

    •   writeOps:   0

    •  readBytes:   0

    • writeBytes:   0

    •  queryTime: 2ms

    •    retries:   0

  4. The following query runs in the context of a JWT token:

    Copied!
    client.query(
  q.()
)
.then((ret) => console.log(ret))
.catch((err) => console.error(
  'Error: [%s] %s: %s',
  err.name,
  err.message,
  err.errors()[0].description,
))
    {
  iss: 'https://dev--nozpv3z.us.auth0.com/',
  sub: 'l6vJS8QvHC2LmiGRaOTiE16givuufR22@clients',
  aud: 'https://db.fauna.com/db/yxxf5x9w1ybyn',
  iat: 1611084659,
  exp: 1611171059,
  azp: 'l6vJS8QvHC2LmiGRaOTiE16givuufR22',
  gty: 'client-credentials'
}
    Query metrics:

    •    bytesIn:  22

    •   bytesOut: 254

    • computeOps:   1

    •    readOps:   0

    •   writeOps:   0

    •  readBytes:   0

    • writeBytes:   0

    •  queryTime: 1ms

    •    retries:   0

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