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// __ _____ __ ___ ___ __ _| |_ ___
// \ \ /\ / / _ \/ _` \ \ / / |/ _` | __/ _ \
// \ V V / __/ (_| |\ V /| | (_| | || __/
// \_/\_/ \___|\__,_| \_/ |_|\__,_|\__\___|
//
// Copyright © 2016 - 2025 Weaviate B.V. All rights reserved.
//
// CONTACT: hello@weaviate.io
//
package modulecomponents
import (
"context"
"fmt"
"strconv"
"strings"
"google.golang.org/grpc/metadata"
)
func GetValueFromGRPC(ctx context.Context, key string) []string {
md, ok := metadata.FromIncomingContext(ctx)
if ok {
// the grpc library will lowercase all md keys, so we need to make sure to check a lowercase key
apiKey, ok := md[strings.ToLower(key)]
if ok {
return apiKey
}
}
return nil
}
func GetValueFromContext(ctx context.Context, key string) string {
if value := ctx.Value(key); value != nil {
if keyHeader, ok := value.([]string); ok && len(keyHeader) > 0 && len(keyHeader[0]) > 0 {
return keyHeader[0]
}
}
// try getting header from GRPC if not successful
if value := GetValueFromGRPC(ctx, key); len(value) > 0 && len(value[0]) > 0 {
return value[0]
}
return ""
}
func GetRateLimitFromContext(ctx context.Context, moduleName string, defaultRPM, defaultTPM int) (int, int) {
returnRPM := defaultRPM
returnTPM := defaultTPM
if rpmS := GetValueFromContext(ctx, fmt.Sprintf("X-%s-Ratelimit-RequestPM-Embedding", moduleName)); rpmS != "" {
s, err := strconv.Atoi(rpmS)
if err == nil {
returnRPM = s
}
}
if tpmS := GetValueFromContext(ctx, fmt.Sprintf("X-%s-Ratelimit-TokenPM-Embedding", moduleName)); tpmS != "" {
s, err := strconv.Atoi(tpmS)
if err == nil {
returnTPM = s
}
}
return returnRPM, returnTPM
}
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