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app.go
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app.go
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// Copyright (c) 2018 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package app
import (
"context"
"net/textproto"
"go.uber.org/fx"
"github.com/uber/zanzibar/v2/runtime/jsonwrapper"
"go.uber.org/zap"
zanzibar "github.com/uber/zanzibar/v2/runtime"
)
// AppOptions defines the custom application func
var AppOptions = &zanzibar.Options{
GetContextScopeExtractors: getContextScopeTagExtractors,
GetContextFieldExtractors: getContextLogFieldExtractors,
JSONWrapper: jsonwrapper.NewDefaultJSONWrapper(),
}
// GetOverrideFxOptions provides a hook to configure a non-zero number of fx options
func GetOverrideFxOptions() []fx.Option {
return []fx.Option{}
}
func getContextScopeTagExtractors() []zanzibar.ContextScopeTagsExtractor {
extractors := []zanzibar.ContextScopeTagsExtractor{
getRequestTags,
}
return extractors
}
func getContextLogFieldExtractors() []zanzibar.ContextLogFieldsExtractor {
extractors := []zanzibar.ContextLogFieldsExtractor{
getRequestFields,
}
return extractors
}
func getRequestTags(ctx context.Context) map[string]string {
tags := map[string]string{}
headers := zanzibar.GetEndpointRequestHeadersFromCtx(ctx)
tags["regionname"] = headers["Regionname"]
tags["device"] = headers["Device"]
tags["deviceversion"] = headers["Deviceversion"]
return tags
}
func getRequestFields(ctx context.Context) []zap.Field {
var fields []zap.Field
headers := zanzibar.GetEndpointRequestHeadersFromCtx(ctx)
for k, v := range headers {
if textproto.CanonicalMIMEHeaderKey("x-token") == textproto.CanonicalMIMEHeaderKey(k) {
continue
}
fields = append(fields, zap.String(k, v))
}
return fields
}