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Published: Jul 3, 2020 License: Apache-2.0 Imports: 2 Imported by: 276



Package metadata is a way of defining message headers



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func Delete added in v2.5.0

func Delete(ctx context.Context, k string) context.Context

Delete key from metadata

func Get

func Get(ctx context.Context, key string) (string, bool)

Get returns a single value from metadata in the context

func MergeContext

func MergeContext(ctx context.Context, patchMd Metadata, overwrite bool) context.Context

MergeContext merges metadata to existing metadata, overwriting if specified

func NewContext

func NewContext(ctx context.Context, md Metadata) context.Context

NewContext creates a new context with the given metadata

func Set added in v2.1.1

func Set(ctx context.Context, k, v string) context.Context

Set add key with val to metadata


type Metadata

type Metadata map[string]string

Metadata is our way of representing request headers internally. They're used at the RPC level and translate back and forth from Transport headers.

func Copy

func Copy(md Metadata) Metadata

Copy makes a copy of the metadata

func FromContext

func FromContext(ctx context.Context) (Metadata, bool)

FromContext returns metadata from the given context

func (Metadata) Delete added in v2.5.0

func (md Metadata) Delete(key string)

func (Metadata) Get added in v2.4.0

func (md Metadata) Get(key string) (string, bool)

func (Metadata) Set added in v2.5.0

func (md Metadata) Set(key, val string)

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