### Example usage of Labels

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Applying multiple labels to a log entry.

```go
logger.Info(
  "Did something.",
  zapdriver.Labels(
    zapdriver.Label("hello", "world"),
    zapdriver.Label("hi", "universe"),
  ),
)
```

--------------------------------

### Example usage of Operation

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Grouping logs for a single operation using start and end flags.

```go
logger.Info("Started.", zapdriver.Operation("3g4d3g", "my-app", true, false))
logger.Debug("Progressing.", zapdriver.Operation("3g4d3g", "my-app", false, false))
logger.Info("Done.", zapdriver.Operation("3g4d3g", "my-app", false, true))
```

--------------------------------

### Example usage of TraceContext

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Adding trace context to a log entry.

```go
logger.Error("Something happened!", zapdriver.TraceContext("105445aa7843bc8bf206b120001000", "0", true, "my-project-name")...)
```

--------------------------------

### Quick start HTTP logging

Source: https://pkg.go.dev/github.com/blendle/zapdriver

The fastest way to log HTTP requests using zapdriver.

```go
logger.Info("Request Received.", zapdriver.HTTP(zapdriver.NewHTTP(req, res)))
```

--------------------------------

### Convenience Operation functions

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Alternative functions for starting, continuing, or ending an operation.

```go
OperationStart(id, producer string) zap.Field
OperationCont(id, producer string) zap.Field
OperationEnd(id, producer string) zap.Field
```

--------------------------------

### Get a Zapdriver encoder

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Use NewProductionEncoderConfig or NewDevelopmentEncoderConfig to retrieve an encoder for custom configuration builds.

```go
encoder := zapdriver.NewProductionEncoderConfig()
encoder := zapdriver.NewDevelopmentEncoderConfig()
```

--------------------------------

### func OperationStart

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Adds a Stackdriver operation field with the given id and producer, indicating the start of an operation.

```APIDOC
## func OperationStart

### Description
Adds a Stackdriver operation field with the given id and producer, indicating the start of an operation.

### Signature
`func OperationStart(id, producer string) zap.Field`

### Parameters
- **id** (string) - Required - The operation ID.
- **producer** (string) - Required - The operation producer.

### Returns
- **zap.Field** - The operation field.

```

--------------------------------

### func Labels

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Takes Zap fields, filters the ones that have their key start with the string `labels.` and their value type set to StringType. It then wraps those key/value pairs in a top-level `labels` namespace.

```APIDOC
## func Labels

### Description
Takes Zap fields, filters the ones that have their key start with the string `labels.` and their value type set to StringType. It then wraps those key/value pairs in a top-level `labels` namespace.

### Signature
`func Labels(fields ...zap.Field) zap.Field`

### Parameters
- **fields** (...zap.Field) - Required - The Zap fields to filter and wrap.

### Returns
- **zap.Field** - The labels namespace field.

```

--------------------------------

### func ErrorReport

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Adds the correct Stackdriver "context" field for getting the log line reported as error.

```APIDOC
## func ErrorReport

### Description
Adds the correct Stackdriver "context" field for getting the log line reported as error. See: https://cloud.google.com/error-reporting/docs/formatting-error-messages

### Signature
`func ErrorReport(pc uintptr, file string, line int, ok bool) zap.Field`

### Parameters
- **pc** (uintptr) - Required - Program counter of the call site.
- **file** (string) - Required - File name of the call site.
- **line** (int) - Required - Line number of the call site.
- **ok** (bool) - Required - Whether the call site information is valid.

### Returns
- **zap.Field** - The Stackdriver context field.

```

--------------------------------

### Initialize Production Logger with Core

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Use NewProductionWithCore to simplify setting up a logger with Stackdriver Error Reporting enabled.

```go
logger, err := zapdriver.NewProductionWithCore(zapdriver.WrapCore(
  zapdriver.ReportAllErrors(true),
  zapdriver.ServiceName("my service"),
))
```

--------------------------------

### OperationStart function

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Convenience function for the first operation log.

```go
func OperationStart(id, producer string) zap.Field
```

--------------------------------

### Create a configuration struct with zapdriver

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Use NewProductionConfig or NewDevelopmentConfig to obtain a configuration struct for building a logger.

```go
config := zapdriver.NewProductionConfig()
config := zapdriver.NewDevelopmentConfig()
```

--------------------------------

### Initialize Production Encoder Config

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Use this to manually build a Zap logger configuration with Stackdriver-optimized encoder settings.

```go
zapdriver.NewProductionEncoderConfig()
```

--------------------------------

### func NewDevelopmentConfig

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Returns a reasonable development logging configuration.

```APIDOC
## func NewDevelopmentConfig

### Description
Returns a reasonable development logging configuration. Logging is enabled at DebugLevel and above. It enables development mode (which makes DPanicLevel logs panic), uses a console encoder, writes to standard error, and disables sampling. Stacktraces are automatically included on logs of WarnLevel and above.

### Signature
`func NewDevelopmentConfig() zap.Config`

### Returns
- **zap.Config** - The development configuration.

```

--------------------------------

### func NewDevelopmentWithCore

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Same as NewDevelopment but accepts a custom configured core.

```APIDOC
## func NewDevelopmentWithCore

### Description
Same as NewDevelopment but accepts a custom configured core.

### Signature
`func NewDevelopmentWithCore(core zap.Option, options ...zap.Option) (*zap.Logger, error)`

### Parameters
- **core** (zap.Option) - Required - The custom core option.
- **options** (...zap.Option) - Optional - Additional options to configure the logger.

### Returns
- **(*zap.Logger, error)** - The development logger and an error if any.

```

--------------------------------

### Create a new Zap logger with zapdriver

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Use NewProduction or NewDevelopment to initialize a zap.Logger configured for Stackdriver format.

```go
logger, err := zapdriver.NewProduction() // with sampling
logger, err := zapdriver.NewDevelopment() // with `development` set to `true`
```

--------------------------------

### func OperationStart

Source: https://pkg.go.dev/github.com/blendle/zapdriver

OperationStart is a convenience function for `Operation`. It should be called for the first operation log.

```APIDOC
## func OperationStart

### Description
OperationStart is a convenience function for `Operation`. It should be called for the first operation log.

### Function Signature
```go
func OperationStart(id, producer string) zap.Field
```

### Parameters
- **id** (string) - Required - The operation ID.
- **producer** (string) - Required - The producer of the operation.

### Returns
- **field** (zap.Field) - The zap field representing the operation.
```

--------------------------------

### NewHTTP constructor

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Creates a new HTTPPayload instance from standard http.Request and http.Response objects.

```go
func NewHTTP(req *http.Request, res *http.Response) *HTTPPayload
```

--------------------------------

### Manual SourceLocation capture

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Capturing the stack frame at one location to log it at another.

```go
pc, file, line, ok := runtime.Caller(0)

// do other stuff...

logger.Error("Something happened!", zapdriver.SourceLocation(pc, file, line, ok))
```

--------------------------------

### func NewProductionWithCore

Source: https://pkg.go.dev/github.com/blendle/zapdriver

NewProductionWithCore is same as NewProduction but accepts a custom configured core.

```APIDOC
## func NewProductionWithCore

### Description
NewProductionWithCore is same as NewProduction but accepts a custom configured core.

### Function Signature
```go
func NewProductionWithCore(core zap.Option, options ...zap.Option) (*zap.Logger, error)
```

### Parameters
- **core** (zap.Option) - Required - The custom configured core.
- **options** (zap.Option) - Optional - Additional zap options.

### Returns
- **logger** (*zap.Logger) - The constructed logger.
- **error** (error) - Any error encountered during construction.
```

--------------------------------

### Wrap labels in namespace

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Use Labels to wrap multiple label fields if not using the provided Zap Core.

```go
Labels(fields ...zap.Field) zap.Field
```

--------------------------------

### func NewProductionWithCore

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Same as NewProduction but accepts a custom configured core.

```APIDOC
## func NewProductionWithCore

### Description
Same as NewProduction but accepts a custom configured core.

### Signature
`func NewProductionWithCore(core zap.Option, options ...zap.Option) (*zap.Logger, error)`

### Parameters
- **core** (zap.Option) - Required - The custom core option.
- **options** (...zap.Option) - Optional - Additional options to configure the logger.

### Returns
- **(*zap.Logger, error)** - The production logger and an error if any.

```

--------------------------------

### func NewProductionConfig

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Returns a reasonable production logging configuration.

```APIDOC
## func NewProductionConfig

### Description
Returns a reasonable production logging configuration. Logging is enabled at InfoLevel and above. It uses a JSON encoder, writes to standard error, and enables sampling. Stacktraces are automatically included on logs of ErrorLevel and above.

### Signature
`func NewProductionConfig() zap.Config`

### Returns
- **zap.Config** - The production configuration.

```

--------------------------------

### NewProductionWithCore function

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Creates a new production logger with a custom configured core.

```go
func NewProductionWithCore(core zap.Option, options ...zap.Option) (*zap.Logger, error)
```

--------------------------------

### Define Label logging field

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Creates a label field that sets the key to labels.<key>.

```go
Label(key, value string) zap.Field
```

--------------------------------

### Manually build HTTP payload

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Construct the HTTPPayload struct manually for logging.

```go
req := &HTTPPayload{
  RequestMethod: "GET",
  RequestURL: "/",
  Status: 200,
}
```

--------------------------------

### OperationCont function

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Convenience function for non-start/end operation logs.

```go
func OperationCont(id, producer string) zap.Field
```

--------------------------------

### SourceLocation function

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Adds the Stackdriver SourceLocation field.

```go
func SourceLocation(pc uintptr, file string, line int, ok bool) zap.Field
```

--------------------------------

### func NewDevelopment

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Builds a development Logger that writes DebugLevel and above logs to standard error in a human-friendly format.

```APIDOC
## func NewDevelopment

### Description
Builds a development Logger that writes DebugLevel and above logs to standard error in a human-friendly format. It's a shortcut for NewDevelopmentConfig().Build(...Option).

### Signature
`func NewDevelopment(options ...zap.Option) (*zap.Logger, error)`

### Parameters
- **options** (...zap.Option) - Optional - Additional options to configure the logger.

### Returns
- **(*zap.Logger, error)** - The development logger and an error if any.

```

--------------------------------

### MarshalLogObject implementation

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Implements the zapcore.ObjectMarshaller interface for HTTPPayload.

```go
func (req HTTPPayload) MarshalLogObject(enc zapcore.ObjectEncoder) error
```

--------------------------------

### MarshalLogObject

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Implements the zapcore.ObjectMarshaller interface for HTTPPayload, enabling structured logging.

```APIDOC
## MarshalLogObject

### Description
MarshalLogObject implements the zapcore.ObjectMarshaller interface, allowing HTTPPayload to be logged with zap.

### Method
func

### Endpoint
MarshalLogObject(enc zapcore.ObjectEncoder) error

### Parameters
#### Parameters
- **enc** (zapcore.ObjectEncoder) - Required - The object encoder used to write the payload fields.

### Response
#### Success Response
- **error** (error) - Returns nil on success, or an error if encoding fails.

### Response Example
```go
err := payload.MarshalLogObject(encoder)
```
```

--------------------------------

### func HTTP

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Adds the correct Stackdriver "HTTP" field.

```APIDOC
## func HTTP

### Description
Adds the correct Stackdriver "HTTP" field. See: https://cloud.google.com/logging/docs/reference/v2/rest/v2/LogEntry#HttpRequest

### Signature
`func HTTP(req *HTTPPayload) zap.Field`

### Parameters
- **req** (*HTTPPayload) - Required - The HTTP payload to add as a field.

### Returns
- **zap.Field** - The Stackdriver HTTP field.

```

--------------------------------

### ServiceName function

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Core option to add ServiceContext() to all logs with a specified service name.

```go
func ServiceName(name string) func(*core)
```

--------------------------------

### NewHTTP

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Constructs a new HTTPPayload struct from an HTTP request and response.

```APIDOC
## NewHTTP

### Description
NewHTTP returns a new HTTPPayload struct, based on the passed in http.Request and http.Response objects.

### Method
func

### Endpoint
NewHTTP(req *http.Request, res *http.Response) *HTTPPayload

### Parameters
#### Parameters
- **req** (*http.Request) - Required - The HTTP request object.
- **res** (*http.Response) - Required - The HTTP response object.

### Response
#### Success Response
- **HTTPPayload** (*HTTPPayload) - The constructed HTTPPayload struct.

### Response Example
```go
payload := NewHTTP(req, res)
```
```

--------------------------------

### func NewProduction

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Builds a sensible production Logger that writes InfoLevel and above logs to standard error as JSON.

```APIDOC
## func NewProduction

### Description
Builds a sensible production Logger that writes InfoLevel and above logs to standard error as JSON. It's a shortcut for NewProductionConfig().Build(...Option).

### Signature
`func NewProduction(options ...zap.Option) (*zap.Logger, error)`

### Parameters
- **options** (...zap.Option) - Optional - Additional options to configure the logger.

### Returns
- **(*zap.Logger, error)** - The production logger and an error if any.

```

--------------------------------

### WrapCore function

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Returns a zap.Option that wraps the default core with the zapdriver one.

```go
func WrapCore(options ...func(*core)) zap.Option
```

--------------------------------

### TraceContext function

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Adds Stackdriver trace, span, and trace_sampled fields.

```go
func TraceContext(trace string, spanId string, sampled bool, projectName string) []zap.Field
```

--------------------------------

### func NewDevelopmentEncoderConfig

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Returns an opinionated EncoderConfig for development environments.

```APIDOC
## func NewDevelopmentEncoderConfig

### Description
Returns an opinionated EncoderConfig for development environments.

### Signature
`func NewDevelopmentEncoderConfig() zapcore.EncoderConfig`

### Returns
- **zapcore.EncoderConfig** - The development encoder configuration.

```

--------------------------------

### OperationEnd function

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Convenience function for the last operation log.

```go
func OperationEnd(id, producer string) zap.Field
```

--------------------------------

### Define SourceLocation logging field

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Adds source code location information to log lines.

```go
SourceLocation(pc uintptr, file string, line int, ok bool) zap.Field
```

--------------------------------

### ServiceContext function

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Adds service information required for error reporting.

```go
func ServiceContext(name string) zap.Field
```

--------------------------------

### Configure Custom Logger with Error Reporting

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Configure a custom Zap logger to report errors to Stackdriver by wrapping the core with error reporting options.

```go
config := &zap.Config{}
logger, err := config.Build(zapdriver.WrapCore(
  zapdriver.ReportAllErrors(true),
  zapdriver.ServiceName("my service"),
))
```

--------------------------------

### Automatic SourceLocation capture

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Adding source location at the frame of the triggered log line without using zapdriver.Core.

```go
logger.Error("Something happened!", zapdriver.SourceLocation(runtime.Caller(0)))
```

--------------------------------

### Define TraceContext logging field

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Adds trace context information to log lines.

```go
TraceContext(trace string, spanId string, sampled bool, projectName string) []zap.Field
```

--------------------------------

### HTTPPayload struct definition

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Defines the structure for HTTP request data compatible with Stackdriver logging.

```go
type HTTPPayload struct {
	// The request method. Examples: "GET", "HEAD", "PUT", "POST".
	RequestMethod string `json:"requestMethod"`

	// The scheme (http, https), the host name, the path and the query portion of
	// the URL that was requested.
	//
	// Example: "http://example.com/some/info?color=red".
	RequestURL string `json:"requestUrl"`

	// The size of the HTTP request message in bytes, including the request
	// headers and the request body.
	RequestSize string `json:"requestSize"`

	// The response code indicating the status of response.
	//
	// Examples: 200, 404.
	Status int `json:"status"`

	// The size of the HTTP response message sent back to the client, in bytes,
	// including the response headers and the response body.
	ResponseSize string `json:"responseSize"`

	// The user agent sent by the client.
	//
	// Example: "Mozilla/4.0 (compatible; MSIE 6.0; Windows 98; Q312461; .NET CLR 1.0.3705)".
	UserAgent string `json:"userAgent"`

	// The IP address (IPv4 or IPv6) of the client that issued the HTTP request.
	//
	// Examples: "192.168.1.1", "FE80::0202:B3FF:FE1E:8329".
	RemoteIP string `json:"remoteIp"`

	// The IP address (IPv4 or IPv6) of the origin server that the request was
	// sent to.
	ServerIP string `json:"serverIp"`

	// The referrer URL of the request, as defined in HTTP/1.1 Header Field
	// Definitions.
	Referer string `json:"referer"`

	// The request processing latency on the server, from the time the request was
	// received until the response was sent.
	//
	// A duration in seconds with up to nine fractional digits, terminated by 's'.
	//
	// Example: "3.5s".
	Latency string `json:"latency"`

	// Whether or not a cache lookup was attempted.
	CacheLookup bool `json:"cacheLookup"`

	// Whether or not an entity was served from cache (with or without
	// validation).
	CacheHit bool `json:"cacheHit"`

	// Whether or not the response was validated with the origin server before
	// being served from cache. This field is only meaningful if cacheHit is True.
	CacheValidatedWithOriginServer bool `json:"cacheValidatedWithOriginServer"`

	// The number of HTTP response bytes inserted into cache. Set only when a
	// cache fill was attempted.
	CacheFillBytes string `json:"cacheFillBytes"`

	// Protocol used for the request.
	//
	// Examples: "HTTP/1.1", "HTTP/2", "websocket"
	Protocol string `json:"protocol"`
}
```

--------------------------------

### func SourceLocation

Source: https://pkg.go.dev/github.com/blendle/zapdriver

SourceLocation adds the correct Stackdriver "SourceLocation" field.

```APIDOC
## func SourceLocation

### Description
SourceLocation adds the correct Stackdriver "SourceLocation" field.

### Function Signature
```go
func SourceLocation(pc uintptr, file string, line int, ok bool) zap.Field
```

### Parameters
- **pc** (uintptr) - Required - The program counter.
- **file** (string) - Required - The file name.
- **line** (int) - Required - The line number.
- **ok** (bool) - Required - Whether the location is valid.

### Returns
- **field** (zap.Field) - The zap field representing the source location.
```

--------------------------------

### func NewProductionEncoderConfig

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Returns an opinionated EncoderConfig for production environments.

```APIDOC
## func NewProductionEncoderConfig

### Description
Returns an opinionated EncoderConfig for production environments.

### Signature
`func NewProductionEncoderConfig() zapcore.EncoderConfig`

### Returns
- **zapcore.EncoderConfig** - The production encoder configuration.

```

--------------------------------

### Attach Service Context for Error Reporting

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Ensure error reports are correctly attributed by attaching a ServiceContext to the log entry or the logger instance.

```go
logger.Error(
  "An error to be reported!",
  zapdriver.ErrorReport(runtime.Caller(0)),
  zapdriver.ServiceContext("my service"),
)

// Or permanently attach it to your logger
logger = logger.With(zapdriver.ServiceContext("my service"))
// and then use it
logger.Error("An error to be reported!", zapdriver.ErrorReport(runtime.Caller(0)))
```

--------------------------------

### Auto-generate HTTP payload

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Use NewHTTP to generate the payload from existing request and response objects.

```go
NewHTTP(req *http.Request, res *http.Response) *HTTPPayload
```

--------------------------------

### Inject Zapdriver Core

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Inject the custom Zapdriver core into a standard Zap configuration to enable automatic label rewriting and source location tracking.

```go
config := &zap.Config{}
logger, err := config.Build(zapdriver.WrapCore())
```

--------------------------------

### func WrapCore

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Returns a zap.Option that wraps the core with the given options.

```APIDOC
## func WrapCore

### Description
Returns a zap.Option that wraps the core with the given options.

### Signature
`func WrapCore(options ...func(*core)) zap.Option`

### Parameters
- **options** (...func(*core)) - Required - The core options to apply.

### Returns
- **zap.Option** - The option that wraps the core.

```

--------------------------------

### func WrapCore

Source: https://pkg.go.dev/github.com/blendle/zapdriver

WrapCore returns a `zap.Option` that wraps the default core with the zapdriver one.

```APIDOC
## func WrapCore

### Description
WrapCore returns a `zap.Option` that wraps the default core with the zapdriver one.

### Function Signature
```go
func WrapCore(options ...func(*core)) zap.Option
```

### Parameters
- **options** (func(*core)) - Optional - Core options to apply.

### Returns
- **option** (zap.Option) - The zap option that wraps the core.
```

--------------------------------

### func Label

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Adds an optional label to the payload.

```APIDOC
## func Label

### Description
Adds an optional label to the payload. Labels are a set of user-defined (key, value) data that provides additional information about the log entry. Example: { "name": "wrench", "mass": "1.3kg", "count": "3" }.

### Signature
`func Label(key, value string) zap.Field`

### Parameters
- **key** (string) - Required - The label key.
- **value** (string) - Required - The label value.

### Returns
- **zap.Field** - The label field.

```

--------------------------------

### Define HTTP logging field

Source: https://pkg.go.dev/github.com/blendle/zapdriver

The HTTP function creates a zap field for logging request/response cycles.

```go
HTTP(req *HTTPPayload) zap.Field
```

--------------------------------

### Define Operation logging field

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Groups log lines into a single operation.

```go
Operation(id, producer string, first, last bool) zap.Field
```

--------------------------------

### func ServiceName

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Returns a function that sets the service name on the core.

```APIDOC
## func ServiceName

### Description
Returns a function that sets the service name on the core.

### Signature
`func ServiceName(name string) func(*core)`

### Parameters
- **name** (string) - Required - The service name.

### Returns
- **func(*core)** - A function that sets the service name on the core.

```

--------------------------------

### func OperationCont

Source: https://pkg.go.dev/github.com/blendle/zapdriver

OperationCont is a convenience function for `Operation`. It should be called for any non-start/end operation log.

```APIDOC
## func OperationCont

### Description
OperationCont is a convenience function for `Operation`. It should be called for any non-start/end operation log.

### Function Signature
```go
func OperationCont(id, producer string) zap.Field
```

### Parameters
- **id** (string) - Required - The operation ID.
- **producer** (string) - Required - The producer of the operation.

### Returns
- **field** (zap.Field) - The zap field representing the operation.
```

--------------------------------

### Operation function

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Adds the Stackdriver operation field for long-running operations.

```go
func Operation(id, producer string, first, last bool) zap.Field
```

--------------------------------

### func Operation

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Adds a Stackdriver operation field with the given id and producer, and sets the first and last flags.

```APIDOC
## func Operation

### Description
Adds a Stackdriver operation field with the given id and producer, and sets the first and last flags.

### Signature
`func Operation(id, producer string, first, last bool) zap.Field`

### Parameters
- **id** (string) - Required - The operation ID.
- **producer** (string) - Required - The operation producer.
- **first** (bool) - Required - Whether this is the first operation.
- **last** (bool) - Required - Whether this is the last operation.

### Returns
- **zap.Field** - The operation field.

```

--------------------------------

### func SourceLocation

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Adds a Stackdriver source location field with the given program counter, file, line, and validity flag.

```APIDOC
## func SourceLocation

### Description
Adds a Stackdriver source location field with the given program counter, file, line, and validity flag.

### Signature
`func SourceLocation(pc uintptr, file string, line int, ok bool) zap.Field`

### Parameters
- **pc** (uintptr) - Required - Program counter of the call site.
- **file** (string) - Required - File name of the call site.
- **line** (int) - Required - Line number of the call site.
- **ok** (bool) - Required - Whether the call site information is valid.

### Returns
- **zap.Field** - The source location field.

```

--------------------------------

### Report Errors Manually

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Attach ErrorReport to specific log calls to manually trigger error reporting for individual events.

```go
logger.Error("An error to be reported!", zapdriver.ErrorReport(runtime.Caller(0)))
// Or get Caller details
pc, file, line, ok := runtime.Caller(0)
// do other stuff... and log elsewhere
logger.Error("Another error to be reported!", zapdriver.ErrorReport(pc, file, line, ok))
```

--------------------------------

### RFC3339NanoTimeEncoder function

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Serializes time.Time to an RFC3339Nano-formatted string with nanoseconds precision.

```go
func RFC3339NanoTimeEncoder(t time.Time, enc zapcore.PrimitiveArrayEncoder)
```

--------------------------------

### func TraceContext

Source: https://pkg.go.dev/github.com/blendle/zapdriver

TraceContext adds the correct Stackdriver "trace", "span", "trace_sampled" fields.

```APIDOC
## func TraceContext

### Description
TraceContext adds the correct Stackdriver "trace", "span", "trace_sampled" fields.

### Function Signature
```go
func TraceContext(trace string, spanId string, sampled bool, projectName string) []zap.Field
```

### Parameters
- **trace** (string) - Required - The trace ID.
- **spanId** (string) - Required - The span ID.
- **sampled** (bool) - Required - Whether the trace is sampled.
- **projectName** (string) - Required - The project name.

### Returns
- **fields** ([]zap.Field) - The zap fields representing the trace context.
```

--------------------------------

### func ServiceName

Source: https://pkg.go.dev/github.com/blendle/zapdriver

zapdriver core option to add `ServiceContext()` to all logs with `name` as service name.

```APIDOC
## func ServiceName

### Description
zapdriver core option to add `ServiceContext()` to all logs with `name` as service name.

### Function Signature
```go
func ServiceName(name string) func(*core)
```

### Parameters
- **name** (string) - Required - The service name.
```

--------------------------------

### func Operation

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Operation adds the correct Stackdriver "operation" field. Additional information about a potentially long-running operation with which a log entry is associated.

```APIDOC
## func Operation

### Description
Operation adds the correct Stackdriver "operation" field. Additional information about a potentially long-running operation with which a log entry is associated.

### Function Signature
```go
func Operation(id, producer string, first, last bool) zap.Field
```

### Parameters
- **id** (string) - Required - The operation ID.
- **producer** (string) - Required - The producer of the operation.
- **first** (bool) - Required - Whether this is the first log entry in the operation.
- **last** (bool) - Required - Whether this is the last log entry in the operation.

### Returns
- **field** (zap.Field) - The zap field representing the operation.
```

--------------------------------

### func OperationEnd

Source: https://pkg.go.dev/github.com/blendle/zapdriver

OperationEnd is a convenience function for `Operation`. It should be called for the last operation log.

```APIDOC
## func OperationEnd

### Description
OperationEnd is a convenience function for `Operation`. It should be called for the last operation log.

### Function Signature
```go
func OperationEnd(id, producer string) zap.Field
```

### Parameters
- **id** (string) - Required - The operation ID.
- **producer** (string) - Required - The producer of the operation.

### Returns
- **field** (zap.Field) - The zap field representing the operation.
```

--------------------------------

### ReportAllErrors function

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Core option to report logs with level error or above to Stackdriver using ErrorReport().

```go
func ReportAllErrors(report bool) func(*core)
```

--------------------------------

### type HTTPPayload

Source: https://pkg.go.dev/github.com/blendle/zapdriver

HTTPPayload is a struct that represents an HTTP request/response payload for Stackdriver logging.

```APIDOC
## type HTTPPayload

### Description
HTTPPayload is a struct that represents an HTTP request/response payload for Stackdriver logging.

### Definition
`type HTTPPayload struct { ... }`

### Methods
#### func NewHTTP

Creates a new HTTPPayload from an HTTP request and response.

`func NewHTTP(req *http.Request, res *http.Response) *HTTPPayload`

#### func (req HTTPPayload) MarshalLogObject

Implements zapcore.ObjectMarshaler to marshal the HTTP payload.

`func (req HTTPPayload) MarshalLogObject(enc zapcore.ObjectEncoder) error`

```

--------------------------------

### func OperationCont

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Adds a Stackdriver operation field with the given id and producer, indicating a continuation operation.

```APIDOC
## func OperationCont

### Description
Adds a Stackdriver operation field with the given id and producer, indicating a continuation operation.

### Signature
`func OperationCont(id, producer string) zap.Field`

### Parameters
- **id** (string) - Required - The operation ID.
- **producer** (string) - Required - The operation producer.

### Returns
- **zap.Field** - The operation field.

```

--------------------------------

### func TraceContext

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Adds Stackdriver trace context fields with the given trace ID, span ID, sampled flag, and project name.

```APIDOC
## func TraceContext

### Description
Adds Stackdriver trace context fields with the given trace ID, span ID, sampled flag, and project name.

### Signature
`func TraceContext(trace string, spanId string, sampled bool, projectName string) []zap.Field`

### Parameters
- **trace** (string) - Required - The trace ID.
- **spanId** (string) - Required - The span ID.
- **sampled** (bool) - Required - Whether the trace is sampled.
- **projectName** (string) - Required - The project name.

### Returns
- **[]zap.Field** - The trace context fields.

```

--------------------------------

### func EncodeLevel

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Maps the internal Zap log level to the appropriate Stackdriver level.

```APIDOC
## func EncodeLevel

### Description
Maps the internal Zap log level to the appropriate Stackdriver level.

### Signature
`func EncodeLevel(l zapcore.Level, enc zapcore.PrimitiveArrayEncoder)`

### Parameters
- **l** (zapcore.Level) - Required - The internal Zap log level to map.
- **enc** (zapcore.PrimitiveArrayEncoder) - Required - The encoder to write the mapped level to.

```

--------------------------------

### func ServiceContext

Source: https://pkg.go.dev/github.com/blendle/zapdriver

ServiceContext adds the correct service information adding the log line. It is a required field if an error needs to be reported.

```APIDOC
## func ServiceContext

### Description
ServiceContext adds the correct service information adding the log line. It is a required field if an error needs to be reported.

### Function Signature
```go
func ServiceContext(name string) zap.Field
```

### Parameters
- **name** (string) - Required - The service name.

### Returns
- **field** (zap.Field) - The zap field representing the service context.
```

--------------------------------

### func ReportAllErrors

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Returns a function that sets whether to report all errors on the core.

```APIDOC
## func ReportAllErrors

### Description
Returns a function that sets whether to report all errors on the core.

### Signature
`func ReportAllErrors(report bool) func(*core)`

### Parameters
- **report** (bool) - Required - Whether to report all errors.

### Returns
- **func(*core)** - A function that sets the report flag on the core.

```

--------------------------------

### func ReportAllErrors

Source: https://pkg.go.dev/github.com/blendle/zapdriver

zapdriver core option to report all logs with level error or above to stackdriver using `ErrorReport()` when set to true.

```APIDOC
## func ReportAllErrors

### Description
zapdriver core option to report all logs with level error or above to stackdriver using `ErrorReport()` when set to true.

### Function Signature
```go
func ReportAllErrors(report bool) func(*core)
```

### Parameters
- **report** (bool) - Required - Whether to report all error-level logs.
```

--------------------------------

### func OperationEnd

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Adds a Stackdriver operation field with the given id and producer, indicating the end of an operation.

```APIDOC
## func OperationEnd

### Description
Adds a Stackdriver operation field with the given id and producer, indicating the end of an operation.

### Signature
`func OperationEnd(id, producer string) zap.Field`

### Parameters
- **id** (string) - Required - The operation ID.
- **producer** (string) - Required - The operation producer.

### Returns
- **zap.Field** - The operation field.

```

--------------------------------

### func ServiceContext

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Adds a Stackdriver service context field with the given service name.

```APIDOC
## func ServiceContext

### Description
Adds a Stackdriver service context field with the given service name.

### Signature
`func ServiceContext(name string) zap.Field`

### Parameters
- **name** (string) - Required - The service name.

### Returns
- **zap.Field** - The service context field.

```

--------------------------------

### func RFC3339NanoTimeEncoder

Source: https://pkg.go.dev/github.com/blendle/zapdriver

Encodes a time.Time in RFC3339Nano format.

```APIDOC
## func RFC3339NanoTimeEncoder

### Description
Encodes a time.Time in RFC3339Nano format.

### Signature
`func RFC3339NanoTimeEncoder(t time.Time, enc zapcore.PrimitiveArrayEncoder)`

### Parameters
- **t** (time.Time) - Required - The time to encode.
- **enc** (zapcore.PrimitiveArrayEncoder) - Required - The encoder to write the time to.

```

--------------------------------

### func RFC3339NanoTimeEncoder

Source: https://pkg.go.dev/github.com/blendle/zapdriver

RFC3339NanoTimeEncoder serializes a time.Time to an RFC3339Nano-formatted string with nanoseconds precision.

```APIDOC
## func RFC3339NanoTimeEncoder

### Description
RFC3339NanoTimeEncoder serializes a time.Time to an RFC3339Nano-formatted string with nanoseconds precision.

### Function Signature
```go
func RFC3339NanoTimeEncoder(t time.Time, enc zapcore.PrimitiveArrayEncoder)
```

### Parameters
- **t** (time.Time) - Required - The time to serialize.
- **enc** (zapcore.PrimitiveArrayEncoder) - Required - The encoder to write the serialized time to.
```

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