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Merged
Hector Hernandez (hectorhdzg) merged 3 commits into from
Apr 10, 2026
Merged

Add langchain instrumentation #10

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65fb433
Add langchain instrumentation
hectorhdzg Apr 9, 2026
51b5b0f
Merge branch 'main' into hectorhdzg/langchain
hectorhdzg Apr 10, 2026
2e35ace
Add changelog and sample
hectorhdzg Apr 10, 2026
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1 change: 1 addition & 0 deletions CHANGELOG.md
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Expand Up @@ -3,6 +3,7 @@
## [0.1.0] - Unreleased

### Features Added
- Add langchain isntrumentation.([#10](https://github.com/microsoft/opentelemetry-distro-javascript/pull/10))

### Breaking Changes

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243 changes: 243 additions & 0 deletions package-lock.json
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1 change: 1 addition & 0 deletions package.json
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Expand Up @@ -101,6 +101,7 @@
},
"devDependencies": {
"@azure/functions": "^4.9.0",
"@langchain/core": "^1.1.39",
"@types/node": "^22.0.0",
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"@typescript-eslint/eslint-plugin": "^8.0.0",
"@typescript-eslint/parser": "^8.0.0",
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2 changes: 2 additions & 0 deletions samples/README.md
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Expand Up @@ -22,6 +22,7 @@ These sample programs show how to use the `@microsoft/opentelemetry` distributio
| [otlpExporter.ts][otlpexporter] | Demonstrates how to enable the OTLP exporter alongside Azure Monitor to send telemetry to two locations. |
| [redactQueryStrings.ts][redactquerystrings] | Demonstrates how to redact URL query strings from telemetry to protect sensitive information. |
| [sampling.ts][sampling] | Demonstrates how to enable sampling to reduce data ingestion volume and control costs. |
| [langchainInstrumentation.ts][langchaininstrumentation] | Demonstrates how to enable LangChain instrumentation to trace GenAI operations. |

## Prerequisites

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[otlpexporter]: https://github.com/Azure/opentelemetry-distro-javascript/blob/main/samples/src/otlpExporter.ts
[redactquerystrings]: https://github.com/Azure/opentelemetry-distro-javascript/blob/main/samples/src/redactQueryStrings.ts
[sampling]: https://github.com/Azure/opentelemetry-distro-javascript/blob/main/samples/src/sampling.ts
[langchaininstrumentation]: https://github.com/Azure/opentelemetry-distro-javascript/blob/main/samples/src/langchainInstrumentation.ts
4 changes: 3 additions & 1 deletion samples/package.json
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Expand Up @@ -23,7 +23,9 @@
"@opentelemetry/resources": "^2.2.0",
"@opentelemetry/semantic-conventions": "^1.38.0",
"@opentelemetry/sdk-trace-base": "^2.2.0",
"@opentelemetry/exporter-trace-otlp-http": "^0.208.0"
"@opentelemetry/exporter-trace-otlp-http": "^0.208.0",
"@langchain/openai": "^1.4.4",
"@langchain/core": "^1.1.39"
},
"devDependencies": {
"@types/node": "^20.0.0",
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