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https://github.com/grafana/grafana.git
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f5076d1868
* Plugins: Chore: Renamed instrumentation middleware to metrics middleware * Removed repeated logger attributes in middleware and contextual logger * renamed loggerParams to logParams * PR review suggestion * Add pluginsInstrumentationStatusSource feature toggle * Plugin error source prometheus metrics * Add error_source to logs * re-generate feature toggles * fix compilation issues * remove unwanted changes * Removed logger middleware changes, implement error source using context * Renamed pluginmeta to pluginrequestmeta, changed some method names * Fix comment * pluginrequestmeta.go -> plugin_request_meta.go * Replaced plugin request meta with status source * Add tests for pluginrequestmeta status source * Fix potential nil pointer dereference in instrmentation middleware * Add metrics middleware tests * Sort imports in clienttest.go * Add StatusSourceFromContext test * Add error_source label to plugin_request_duration_seconds * Re-generate feature flags * lint * Use StatusSourcePlugin by default * re-generate feature flags
45 lines
1.5 KiB
Go
45 lines
1.5 KiB
Go
package pluginrequestmeta
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import (
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"context"
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"errors"
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)
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// StatusSource is an enum-like string value representing the source of a
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// plugin query data response status code
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type StatusSource string
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const (
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StatusSourcePlugin StatusSource = "plugin"
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StatusSourceDownstream StatusSource = "downstream"
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)
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type statusSourceCtxKey struct{}
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// StatusSourceFromContext returns the plugin request status source stored in the context.
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// If no plugin request status source is stored in the context, [StatusSourcePlugin] is returned.
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func StatusSourceFromContext(ctx context.Context) StatusSource {
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value, ok := ctx.Value(statusSourceCtxKey{}).(*StatusSource)
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if ok {
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return *value
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}
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return StatusSourcePlugin
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}
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// WithStatusSource sets the plugin request status source for the context.
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func WithStatusSource(ctx context.Context, s StatusSource) context.Context {
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return context.WithValue(ctx, statusSourceCtxKey{}, &s)
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}
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// WithDownstreamStatusSource mutates the provided context by setting the plugin request status source to
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// StatusSourceDownstream. If the provided context does not have a plugin request status source, the context
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// will not be mutated. This means that [WithStatusSource] has to be called before this function.
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func WithDownstreamStatusSource(ctx context.Context) error {
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v, ok := ctx.Value(statusSourceCtxKey{}).(*StatusSource)
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if !ok {
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return errors.New("the provided context does not have a plugin request status source")
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}
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*v = StatusSourceDownstream
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return nil
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}
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