tree 4e99f8267a132514e30b99ca6ba5063601ab7424
parent c4c56376ea8ea499baac2a5451aa5dda71e30b65
author Tyler Bui-Palsulich <tbp@google.com> 1578495202 -0700
committer Tyler Bui-Palsulich <tbp@google.com> 1578506802 +0000

firestore: make collref IDs 20 characters

This is to be consistent with other Firestore clients.

This continues to use crypto/rand because it's better than a p-rng and
the performance impact is minimal. See
https://code-review.googlesource.com/c/gocloud/+/44570 for the change
from 20 characters and more discussion about the performance of
crypto/rand here.

Fixes #1715.

Change-Id: I3faa00a23bb1774ab188aeb4830a10e796373218
Reviewed-on: https://code-review.googlesource.com/c/gocloud/+/50250
Reviewed-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Cody Oss <codyoss@google.com>
Reviewed-by: Sebastian Schmidt <mrschmidt@google.com>