otelmongo

Documentation

Overview

Package otelmongo instruments go.mongodb.org/mongo-driver/mongo.

This package is compatible with v0.2.0 of go.mongodb.org/mongo-driver/mongo.

NewMonitor will return an event.CommandMonitor which is used to trace requests.

This code was originally based on the following:

• https://github.com/DataDog/dd-trace-go/tree/02f0449efa3cb382d499fadc873957385dcb2192/contrib/go.mongodb.org/mongo-driver/mongo
• https://github.com/DataDog/dd-trace-go/tree/v1.23.3/ddtrace/ext

The "OTEL_SEMCONV_STABILITY_OPT_IN" environment variable can be used to opt into semconv/v1.26.0:

• "database": emit v1.26.0 semantic conventions
• "": emit v1.21.0 (default) semantic conventions
• "database/dup": emit v1.21.0 (default) and v1.26.0

By default, otelmongo only emits v1.21.0.

Example

package main

import (
	"context"

	"go.mongodb.org/mongo-driver/bson"
	"go.mongodb.org/mongo-driver/mongo"
	"go.mongodb.org/mongo-driver/mongo/options"

	"go.opentelemetry.io/contrib/instrumentation/go.mongodb.org/mongo-driver/mongo/otelmongo"
)

func main() {
	// connect to MongoDB
	opts := options.Client()
	opts.Monitor = otelmongo.NewMonitor()
	opts.ApplyURI("mongodb://localhost:27017")
	client, err := mongo.Connect(context.Background(), opts)
	if err != nil {
		panic(err)
	}
	db := client.Database("example")
	inventory := db.Collection("inventory")

	_, err = inventory.InsertOne(context.Background(), bson.D{
		{Key: "item", Value: "canvas"},
		{Key: "qty", Value: 100},
		{Key: "attributes", Value: bson.A{"cotton"}},
		{Key: "size", Value: bson.D{
			{Key: "h", Value: 28},
			{Key: "w", Value: 35.5},
			{Key: "uom", Value: "cm"},
		}},
	})
	if err != nil {
		panic(err)
	}
}

Index

• Constants
• func NewMonitor(opts ...Option) *event.CommandMonitor
• func SemVersion() string
• func Version() string
• type Option
  • func WithCommandAttributeDisabled(disabled bool) Option
  • func WithTracerProvider(provider trace.TracerProvider) Option

Examples

• Package

Constants

const ScopeName = "go.opentelemetry.io/contrib/instrumentation/go.mongodb.org/mongo-driver/mongo/otelmongo"

ScopeName is the instrumentation scope name.

Functions

func NewMonitor

func NewMonitor(opts ...Option) *event.CommandMonitor

NewMonitor creates a new mongodb event CommandMonitor.

func SemVersion

func SemVersion() string

SemVersion is the semantic version to be supplied to tracer/meter creation.

Deprecated: Use Version instead.

func Version

func Version() string

Version is the current release version of the mongo-driver instrumentation.

Types

type Option

type Option interface {
	// contains filtered or unexported methods
}

Option specifies instrumentation configuration options.

func WithCommandAttributeDisabled

func WithCommandAttributeDisabled(disabled bool) Option

WithCommandAttributeDisabled specifies if the MongoDB command is added as an attribute to Spans or not. This is disabled by default and the MongoDB command will not be added as an attribute to Spans if this option is not provided.

func WithTracerProvider

func WithTracerProvider(provider trace.TracerProvider) Option

WithTracerProvider specifies a tracer provider to use for creating a tracer. If none is specified, the global provider is used.