This seems to be an instance of prometheus/pushgateway#344: if push_metrics is used with at least one empty grouping label, then 405 Method Not Allowed is returned.
Instructions for fixes seem to be provided for third-party libraries at https://github.com/prometheus/pushgateway/pull/346/files.
Regardless of this issue, thank you for the prometheus crate! I'm using it in a(n upcoming) PR to rustic, and it's always as great to use!
This seems to be an instance of prometheus/pushgateway#344: if
push_metricsis used with at least one empty grouping label, then 405 Method Not Allowed is returned.Instructions for fixes seem to be provided for third-party libraries at https://github.com/prometheus/pushgateway/pull/346/files.
Regardless of this issue, thank you for the prometheus crate! I'm using it in a(n upcoming) PR to
rustic, and it's always as great to use!