> ## Documentation Index
> Fetch the complete documentation index at: https://docs.appsignal.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Logging vanuit Go

export const VersionRequirements = ({versions = []}) => {
  if (!Array.isArray(versions) || versions.length === 0) {
    return null;
  }
  const boundaries = {
    upper: " or lower",
    exact: "",
    lower: " or higher"
  };
  const containerStyle = {
    marginTop: "0.5rem",
    marginBottom: "1.5rem"
  };
  const lineStyle = {
    display: "block",
    margin: "0 0 0.35rem 0",
    fontSize: "0.875rem",
    lineHeight: "1.4"
  };
  const pillBaseStyle = {
    display: "inline-block",
    padding: "0.1em 0.4em",
    borderRadius: "0.25rem",
    border: "1px solid",
    fontFamily: "ui-monospace, SFMono-Regular, Menlo, monospace",
    fontSize: "0.85em",
    fontWeight: 500
  };
  const pillColors = {
    "AppSignal for Elixir": {
      background: "#f3e8ff",
      borderColor: "#e9d5ff",
      color: "#9333ea"
    },
    "AppSignal for Front-end": {
      background: "#fef9c3",
      borderColor: "#fde68a",
      color: "#ca8a04"
    },
    "AppSignal for Go": {
      background: "#ccfbf1",
      borderColor: "#99f6e4",
      color: "#0d9488"
    },
    "AppSignal for JavaScript": {
      background: "#fef9c3",
      borderColor: "#fde68a",
      color: "#ca8a04"
    },
    "AppSignal for Node.js": {
      background: "#dcfce7",
      borderColor: "#bbf7d0",
      color: "#16a34a"
    },
    "AppSignal for Python": {
      background: "#dbeafe",
      borderColor: "#bfdbfe",
      color: "#2563eb"
    },
    "AppSignal for Ruby": {
      background: "#fee2e2",
      borderColor: "#fecaca",
      color: "#dc2626"
    },
    "AppSignal for Rust": {
      background: "#ffedd5",
      borderColor: "#fed7aa",
      color: "#ea580c"
    }
  };
  const defaultPillColor = {
    background: "#f4f4f5",
    borderColor: "#e4e4e7",
    color: "#52525b"
  };
  const getPillStyle = name => ({
    ...pillBaseStyle,
    ...pillColors[name] || defaultPillColor
  });
  const getBoundText = bound => {
    return boundaries[bound] || boundaries.lower;
  };
  return <div style={containerStyle}>
      {versions.map((v, i) => <p key={`${v.name}-${v.version}-${v.bound || "lower"}-${i}`} style={lineStyle}>
          This feature requires{" "}
          <code style={getPillStyle(v.name)}>{v.name}</code> version {v.version}
          {getBoundText(v.bound)}.
        </p>)}
    </div>;
};

export const Compatibility = ({versions = [], label = "Available in"}) => {
  if (!Array.isArray(versions) || versions.length === 0) {
    return null;
  }
  const defaultPillStyle = {
    borderColor: "#d4d4d8",
    background: "#f4f4f5",
    color: "#3f3f46"
  };
  const pillStyles = {
    "AppSignal for Elixir": {
      background: "#f3e8ff",
      borderColor: "#d8b4fe",
      color: "#6b21a8"
    },
    "AppSignal for Front-end": {
      background: "#fef9c3",
      borderColor: "#fde047",
      color: "#854d0e"
    },
    "AppSignal for Go": {
      background: "#ccfbf1",
      borderColor: "#5eead4",
      color: "#115e59"
    },
    "AppSignal for JavaScript": {
      background: "#fef9c3",
      borderColor: "#fde047",
      color: "#854d0e"
    },
    "AppSignal for Node.js": {
      background: "#dcfce7",
      borderColor: "#86efac",
      color: "#166534"
    },
    "AppSignal for Python": {
      background: "#dbeafe",
      borderColor: "#93c5fd",
      color: "#1e40af"
    },
    "AppSignal for Ruby": {
      background: "#fee2e2",
      borderColor: "#fca5a5",
      color: "#991b1b"
    },
    "AppSignal for Rust": {
      background: "#ffedd5",
      borderColor: "#fdba74",
      color: "#9a3412"
    }
  };
  const getPillStyle = name => ({
    ...defaultPillStyle,
    ...pillStyles[name] || ({})
  });
  return <div className="not-prose my-4 rounded-lg border border-zinc-200 bg-zinc-50 px-4 py-3 text-sm dark:border-white/10 dark:bg-white/5">
      <div className="flex flex-wrap items-center gap-x-2 gap-y-1">
        <span className="font-semibold text-zinc-700 dark:text-zinc-200">
          {label}:
        </span>
        {versions.map((v, i) => <span key={`${v.name}-${v.version}-${i}`} className="inline-flex items-center gap-1 rounded-full border px-2 py-0.5 text-xs font-medium" style={getPillStyle(v.name)}>
            <span>{v.name}</span>
            <span className="opacity-70">
              {v.version}
              {v.exact ? "" : "+"}
            </span>
          </span>)}
      </div>
    </div>;
};

<VersionRequirements
  versions={[
{ name: "AppSignal Collector", version: "0.7.0" }
]}
/>

Deze documentatie beschrijft hoe u logging configureert met de AppSignal for Go-integratie.

## Logging configureren

<Warning>
  🔐 Stuur geen <strong>Persoonlijk Identificeerbare Informatie (PII)</strong> naar AppSignal. Filter PII (bijv. namen, e-mailadressen) uit logs en gebruik in plaats daarvan een ID, hash of gepseudonimiseerde identificator. <br /> <br /> Voor **onder HIPAA vallende entiteiten** vindt u meer informatie over het ondertekenen van een Business Associate Agreement (BAA) in onze [documentatie over Business Add-Ons](/support/business-add-ons).
</Warning>

U hoeft geen logbron aan te maken om logs te versturen vanuit de AppSignal for Go-integratie. Er wordt automatisch een "application"-logbron aangemaakt.

De Go-integratie gebruikt de logging-mogelijkheden van OpenTelemetry om logs naar AppSignal te sturen.

### Zelfstandig gebruik

Om logging met OpenTelemetry in Go te gebruiken, moet u de logger instellen met de logger-provider van OpenTelemetry.

<CodeGroup>
  ```go Go theme={null}
  package main

  import (
  	"context"
  	"go.opentelemetry.io/otel"
  	"go.opentelemetry.io/otel/log"
  )

  func main() {
  	// Get the logger from the global logger provider
  	loggerProvider := otel.GetLoggerProvider()
  	logger := loggerProvider.Logger("my-app")

  	// Log a message
  	logger.Emit(context.Background(), log.Record{
  		Severity: log.SeverityInfo,
  		Body:     log.StringValue("Log message line"),
  	})
  }
  ```
</CodeGroup>

### Gebruik met `slog`

<Compatibility versions={[{ name: "Go", version: "1.21" }]} />

U kunt het standaard `slog`-pakket configureren om gestructureerde logs naar AppSignal te sturen met behulp van de OpenTelemetry-handler.

<CodeGroup>
  ```go Go theme={null}
  package main

  import (
  	"context"
  	"log/slog"
  	"go.opentelemetry.io/contrib/bridges/otelslog"
  )

  func main() {
  	// Create an OpenTelemetry `slog` handler
  	otelHandler := otelslog.NewHandler("my-app")

  	// Create a `slog` logger with the OpenTelemetry handler
  	logger := slog.New(otelHandler)

  	// Use the logger
  	logger.Info("Log message line")
  	logger.With("user_id", 123).Info("User logged in")
  	logger.Error("An error occurred", "error", "database connection failed")
  }
  ```
</CodeGroup>

## Gebruik

### Logs versturen

Door de OpenTelemetry-logger direct te gebruiken, kunt u de severity-niveau van uw logs definiëren:

<CodeGroup>
  ```go Go theme={null}
  package main

  import (
  	"context"
  	"go.opentelemetry.io/otel"
  	"go.opentelemetry.io/otel/log"
  )

  func main() {
  	loggerProvider := otel.GetLoggerProvider()
  	logger := loggerProvider.Logger("my-app")

  	// Different severity levels
  	logger.Emit(context.Background(), log.Record{
  		Severity: log.SeverityWarn,
  		Body:     log.StringValue("Something went wrong"),
  	})

  	logger.Emit(context.Background(), log.Record{
  		Severity: log.SeverityInfo,
  		Body:     log.StringValue("Action completed"),
  	})

  	logger.Emit(context.Background(), log.Record{
  		Severity: log.SeverityError,
  		Body:     log.StringValue("Database connection failed"),
  	})
  }
  ```
</CodeGroup>

U kunt aangepaste attributen definiëren om loginformatie te versturen die kan worden gebruikt bij het filteren en opvragen van logs:

<CodeGroup>
  ```go Go theme={null}
  package main

  import (
  	"context"
  	"go.opentelemetry.io/otel"
  	"go.opentelemetry.io/otel/log"
  )

  func processInvoice(customerID string) {
  	loggerProvider := otel.GetLoggerProvider()
  	logger := loggerProvider.Logger("invoice_helper")

  	logger.Emit(context.Background(), log.Record{
  		Severity: log.SeverityInfo,
  		Body:     log.StringValue("Generating invoice for customer"),
  		Attributes: []log.KeyValue{
  			log.String("customer_id", customerID),
  		},
  	})

  	invoice := generateInvoice(customerID)

  	logger.Emit(context.Background(), log.Record{
  		Severity: log.SeverityInfo,
  		Body:     log.StringValue("Generated invoice for customer"),
  		Attributes: []log.KeyValue{
  			log.String("customer_id", customerID),
  			log.String("invoice_id", invoice.ID),
  		},
  	})
  }
  ```
</CodeGroup>

U kunt op berichtinhoud en attribuutwaarden filteren en opvragen vanuit de [Log Management](/logging/log-management)-tool.

Eenmaal geconfigureerd, worden de gewenste attributen als log-tags naar AppSignal verstuurd en zijn ze opvraagbaar in de AppSignal logging-interface.

## Logs filteren

U kunt [de configuratieoptie `ignore_logs`](/go/configuration#option-ignore_logs) gebruiken om logregels te negeren. Zie [onze gids Logs negeren](/guides/filter-data/ignore-logs) voor meer informatie.

## Hulp nodig?

Nadat u uw Go-applicatie hebt geconfigureerd om logs te versturen, zouden er logs in AppSignal moeten verschijnen. Als u twijfelt over deze stap of AppSignal geen logs ontvangt, kunt u altijd [contact opnemen](mailto:support@appsignal.com) voor hulp. Wij helpen u graag weer op weg!
