🎨 Improve the metric proto structure

docs/docs/api/platform-api.md

@@ -193,7 +193,8 @@
 
 | Method Name | Request Type | Response Type | Description |
 | ----------- | ------------ | ------------- | ------------|
-| /api.v1.metrics.Service/GetMetrics | [GetMetricsRequest](#api-v1-metrics-GetMetricsRequest) | [GetMetricsResponse](#api-v1-metrics-GetMetricsResponse) | Retrieve metrics. metric_type is mandatory, while the rest of the fields are optional. If project, env or capsule is not specified, they will be treated as wildcards. |
+| /api.v1.metrics.Service/GetMetrics | [GetMetricsRequest](#api-v1-metrics-GetMetricsRequest) | [GetMetricsResponse](#api-v1-metrics-GetMetricsResponse) | Retrieve metrics. metric_type is mandatory, while the rest of the fields in the tags are optional. If project, env or capsule is not specified, they will be treated as wildcards. |
+| /api.v1.metrics.Service/GetMetricsMany | [GetMetricsManyRequest](#api-v1-metrics-GetMetricsManyRequest) | [GetMetricsManyResponse](#api-v1-metrics-GetMetricsManyResponse) | Retrive metrics for multiple sets of tags at a time. Metrics within the same set of tags will be in ascending order of timestamp. |
 
 
 
@@ -8055,34 +8056,50 @@ A docker image tag.
 
 
 
-<a name="api-v1-metrics-Metadata"></a>
+<a name="api-v1-metrics-Metric"></a>
 
-### Metadata
+### Metric
 
 
 
 | Field | Type | Label | Description |
 | ----- | ---- | ----- | ----------- |
-| project | [string](#string) |  |  |
-| environment | [string](#string) |  |  |
-| capsule | [string](#string) |  |  |
+| timestamp | [google.protobuf.Timestamp](#google-protobuf-Timestamp) |  |  |
+| value | [double](#double) |  |  |
 
 
 
 
 
 
-<a name="api-v1-metrics-Metric"></a>
+<a name="api-v1-metrics-MetricFull"></a>
 
-### Metric
+### MetricFull
 
 
 
 | Field | Type | Label | Description |
 | ----- | ---- | ----- | ----------- |
-| timestamp | [google.protobuf.Timestamp](#google-protobuf-Timestamp) |  |  |
-| value | [double](#double) |  |  |
-| metadata | [Metadata](#api-v1-metrics-Metadata) |  | Metadata is only populated when metrics are aggregated. |
+| metric | [Metric](#api-v1-metrics-Metric) |  |  |
+| tags | [Tags](#api-v1-metrics-Tags) |  |  |
+
+
+
+
+
+
+<a name="api-v1-metrics-Tags"></a>
+
+### Tags
+
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| project | [string](#string) |  |  |
+| environment | [string](#string) |  |  |
+| capsule | [string](#string) |  |  |
+| metric_type | [string](#string) |  |  |
 
 
 
@@ -8118,6 +8135,39 @@ A docker image tag.
 
 
 
+<a name="api-v1-metrics-GetMetricsManyRequest"></a>
+
+### GetMetricsManyRequest
+
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| tags | [Tags](#api-v1-metrics-Tags) | repeated |  |
+| from | [google.protobuf.Timestamp](#google-protobuf-Timestamp) |  |  |
+| to | [google.protobuf.Timestamp](#google-protobuf-Timestamp) |  |  |
+| aggregation | [Aggregation](#api-v1-metrics-Aggregation) |  |  |
+
+
+
+
+
+
+<a name="api-v1-metrics-GetMetricsManyResponse"></a>
+
+### GetMetricsManyResponse
+
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| metrics | [MetricFull](#api-v1-metrics-MetricFull) | repeated |  |
+
+
+
+
+
+
 <a name="api-v1-metrics-GetMetricsRequest"></a>
 
 ### GetMetricsRequest
@@ -8126,10 +8176,7 @@ A docker image tag.
 
 | Field | Type | Label | Description |
 | ----- | ---- | ----- | ----------- |
-| metric_type | [string](#string) |  |  |
-| project | [string](#string) |  |  |
-| environment | [string](#string) |  |  |
-| capsule | [string](#string) |  |  |
+| tags | [Tags](#api-v1-metrics-Tags) |  |  |
 | from | [google.protobuf.Timestamp](#google-protobuf-Timestamp) |  |  |
 | to | [google.protobuf.Timestamp](#google-protobuf-Timestamp) |  |  |
 | aggregation | [Aggregation](#api-v1-metrics-Aggregation) |  |  |

proto/rig/api/v1/metrics/metrics.proto

@@ -7,12 +7,16 @@ import "google/protobuf/timestamp.proto";
 message Metric {
   google.protobuf.Timestamp timestamp = 1;
   double value = 2;
-  // Metadata is only populated when metrics are aggregated.
-  Metadata metadata = 4;
 }
 
-message Metadata {
+message MetricFull {
+  Metric metric = 1;
+  Tags tags = 2;
+}
+
+message Tags {
   string project = 1;
   string environment = 2;
   string capsule = 3;
+  string metric_type = 4;
 }

proto/rig/api/v1/metrics/service.proto

@@ -8,25 +8,36 @@ import "api/v1/metrics/metrics.proto";
 
 service Service {
   // Retrieve metrics. metric_type is mandatory, while the rest of the fields
-  // are optional. If project, env or capsule is not
+  // in the tags are optional. If project, env or capsule is not
   // specified, they will be treated as wildcards.
   rpc GetMetrics(GetMetricsRequest) returns (GetMetricsResponse) {}
+  // Retrive metrics for multiple sets of tags at a time. Metrics within the
+  // same set of tags will be in ascending order of timestamp.
+  rpc GetMetricsMany(GetMetricsManyRequest) returns (GetMetricsManyResponse) {}
 }
 
 message GetMetricsRequest {
-  string metric_type = 1;
-  string project = 2;
-  string environment = 3;
-  string capsule = 4;
-  google.protobuf.Timestamp from = 5;
-  google.protobuf.Timestamp to = 6;
-  Aggregation aggregation = 7;
+  Tags tags = 1;
+  google.protobuf.Timestamp from = 2;
+  google.protobuf.Timestamp to = 3;
+  Aggregation aggregation = 4;
 }
 
 message GetMetricsResponse {
   repeated Metric metrics = 1;
 }
 
+message GetMetricsManyRequest {
+  repeated Tags tags = 1;
+  google.protobuf.Timestamp from = 2;
+  google.protobuf.Timestamp to = 3;
+  Aggregation aggregation = 4;
+}
+
+message GetMetricsManyResponse {
+  repeated MetricFull metrics = 1;
+}
+
 message Aggregation {
   Aggregator aggregator = 1;
   google.protobuf.Duration bucket_size = 2;