langsmith
Version:
Client library to connect to the LangSmith Observability and Evaluation Platform.
97 lines (96 loc) • 3.88 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.wrapEvaluator = wrapEvaluator;
exports.evaluatedBy = evaluatedBy;
const traceable_js_1 = require("../../../traceable.cjs");
const globals_js_1 = require("../globals.cjs");
const uuid_1 = require("uuid");
function isEvaluationResult(x) {
return (x != null &&
typeof x === "object" &&
"key" in x &&
typeof x.key === "string" &&
"score" in x);
}
function wrapEvaluator(evaluator) {
return async (input, config) => {
const context = globals_js_1.testWrapperAsyncLocalStorageInstance.getStore();
if (context === undefined || context.currentExample === undefined) {
throw new Error([
`Could not identify current LangSmith context.`,
`Please ensure you are calling this matcher within "ls.test()"`,
`See this page for more information: https://docs.smith.langchain.com/evaluation/how_to_guides/vitest_jest`,
].join("\n"));
}
let evalRunId = config?.runId ?? config?.id ?? (0, uuid_1.v7)();
let evalResult;
if ((0, globals_js_1.trackingEnabled)(context)) {
const wrappedEvaluator = (0, traceable_js_1.traceable)(async (_runTree, params) => {
return evaluator(params);
}, {
id: evalRunId,
trace_id: evalRunId,
on_end: (runTree) => {
// If tracing with OTEL, setting run id manually does not work.
// Instead get it at the end of the run.
evalRunId = runTree.id;
},
reference_example_id: context.currentExample.id,
client: context.client,
tracingEnabled: true,
name: evaluator.name ?? "<evaluator>",
project_name: "evaluators",
...config,
extra: {
...config?.extra,
ls_otel_root: true,
},
});
evalResult = await wrappedEvaluator(traceable_js_1.ROOT, input);
}
else {
evalResult = await evaluator(input);
}
let normalizedResult;
if (!Array.isArray(evalResult)) {
normalizedResult = [evalResult];
}
else {
normalizedResult = evalResult;
}
for (const result of normalizedResult) {
if (isEvaluationResult(result)) {
(0, globals_js_1._logTestFeedback)({
exampleId: context?.currentExample?.id,
feedback: result,
context,
runTree: context.testRootRunTree,
client: context.client,
sourceRunId: evalRunId,
});
}
}
return evalResult;
};
}
async function evaluatedBy(outputs, evaluator) {
const context = globals_js_1.testWrapperAsyncLocalStorageInstance.getStore();
if (context === undefined || context.currentExample === undefined) {
throw new Error([
`Could not identify current LangSmith context.`,
`Please ensure you are calling this matcher within "ls.test()"`,
`See this page for more information: https://docs.smith.langchain.com/evaluation/how_to_guides/vitest_jest`,
].join("\n"));
}
const wrappedEvaluator = wrapEvaluator(evaluator);
const evalRunId = (0, uuid_1.v7)();
const evalResult = await wrappedEvaluator({
inputs: context.currentExample?.inputs ?? {},
referenceOutputs: context?.currentExample?.outputs ?? {},
outputs,
}, { runId: evalRunId });
if (Array.isArray(evalResult)) {
return evalResult.map((result) => result.score);
}
return evalResult.score;
}