Restructure API reference documentation (#10654)

* Removed unsupported APIs
* Change order so it matches the list on top 
* Write better headings
* Make cURL examples consistent with command-response-blocks

Signed-off-by: Christian Haudum <christian.haudum@gmail.com>

docs/sources/get-started/labels/structured-metadata.md

@@ -23,7 +23,7 @@ to extract at query time.
 ## Attaching structured metadata to log lines
 
 You have the option to attach structured metadata to log lines in the push payload along with each log line and the timestamp.
-For more information on how to push logs to Loki via the HTTP endpoint, refer to the [HTTP API documentation]({{< relref "../../reference/api#push-log-entries-to-loki" >}}).
+For more information on how to push logs to Loki via the HTTP endpoint, refer to the [HTTP API documentation]({{< relref "../../reference/api#ingest-logs" >}}).
 
 Alternatively, you can use the Grafana Agent or Promtail to extract and attach structured metadata to your log lines.
 See the [Promtail: Structured metadata stage]({{< relref "../../send-data/promtail/stages/structured_metadata" >}}) for more information.

docs/sources/send-data/k6/_index.md

@@ -84,12 +84,12 @@ The `Client` class exposes the following instance methods:
 | method | description |
 | ------ | ----------- |
 | `push()` | shortcut for `pushParameterized(5, 800*1024, 1024*1024)` |
-| `pushParameterized(streams, minSize, maxSize)` | execute push request ([POST /loki/api/v1/push]({{< relref "../../reference/api#push-log-entries-to-loki" >}})) |
-| `instantQuery(query, limit)` | execute instant query  ([GET /loki/api/v1/query]({{< relref "../../reference/api#query-loki" >}})) |
-| `client.rangeQuery(query, duration, limit)` | execute range query  ([GET /loki/api/v1/query_range]({{< relref "../../reference/api#query-loki-over-a-range-of-time" >}})) |
-| `client.labelsQuery(duration)` | execute labels query  ([GET /loki/api/v1/labels]({{< relref "../../reference/api#list-labels-within-a-range-of-time" >}})) |
-| `client.labelValuesQuery(label, duration)` | execute label values query  ([GET /loki/api/v1/label/\<name\>/values]({{< relref "../../reference/api#list-label-values-within-a-range-of-time" >}})) |
-| `client.seriesQuery(matchers, duration)` | execute series query  ([GET /loki/api/v1/series]({{< relref "../../reference/api#list-series" >}})) |
+| `pushParameterized(streams, minSize, maxSize)` | execute push request ([POST /loki/api/v1/push]({{< relref "../../reference/api#ingest-logs" >}})) |
+| `instantQuery(query, limit)` | execute instant query  ([GET /loki/api/v1/query]({{< relref "../../reference/api#query-logs-at-a-single-point-in-time" >}})) |
+| `client.rangeQuery(query, duration, limit)` | execute range query  ([GET /loki/api/v1/query_range]({{< relref "../../reference/api#query-logs-within-a-range-of-time" >}})) |
+| `client.labelsQuery(duration)` | execute labels query  ([GET /loki/api/v1/labels]({{< relref "../../reference/api#query-labels" >}})) |
+| `client.labelValuesQuery(label, duration)` | execute label values query  ([GET /loki/api/v1/label/\<name\>/values]({{< relref "../../reference/api#query-label-values" >}})) |
+| `client.seriesQuery(matchers, duration)` | execute series query  ([GET /loki/api/v1/series]({{< relref "../../reference/api#query-streams" >}})) |
 
 **Javascript load test example:**
 

docs/sources/send-data/promtail/_index.md

@@ -106,7 +106,7 @@ Important details are:
 
 ## Loki Push API
 
-Promtail can also be configured to receive logs from another Promtail or any Loki client by exposing the [Loki Push API]({{< relref "../../reference/api#push-log-entries-to-loki" >}}) with the [loki_push_api]({{< relref "./configuration#loki_push_api" >}}) scrape config.
+Promtail can also be configured to receive logs from another Promtail or any Loki client by exposing the [Loki Push API]({{< relref "../../reference/api#ingest-logs" >}}) with the [loki_push_api]({{< relref "./configuration#loki_push_api" >}}) scrape config.
 
 There are a few instances where this might be helpful:
 

docs/sources/send-data/promtail/configuration.md

@@ -922,7 +922,7 @@ max_message_length: <int>
 
 ### loki_push_api
 
-The `loki_push_api` block configures Promtail to expose a [Loki push API]({{< relref "../../reference/api#push-log-entries-to-loki" >}}) server.
+The `loki_push_api` block configures Promtail to expose a [Loki push API]({{< relref "../../reference/api#ingest-logs" >}}) server.
 
 Each job configured with a `loki_push_api` will expose this API and will require a separate port.