72 lines
3.1 KiB
JavaScript
72 lines
3.1 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.plugin = void 0;
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const graphql_1 = require("graphql");
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const { name: PACKAGE_NAME } = require("../package.json");
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exports.plugin = (_futureOptions = {}) => () => ({
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requestDidStart() {
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const startWallTime = new Date();
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let endWallTime;
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const startHrTime = process.hrtime();
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let duration;
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const resolverCalls = [];
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return {
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executionDidStart: () => ({
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executionDidEnd: () => {
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duration = process.hrtime(startHrTime);
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endWallTime = new Date();
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},
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willResolveField({ info }) {
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const resolverCall = {
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path: info.path,
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fieldName: info.fieldName,
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parentType: info.parentType,
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returnType: info.returnType,
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startOffset: process.hrtime(startHrTime),
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};
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resolverCalls.push(resolverCall);
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return () => {
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resolverCall.endOffset = process.hrtime(startHrTime);
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};
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},
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}),
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willSendResponse({ response }) {
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if (typeof endWallTime === 'undefined' ||
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typeof duration === 'undefined') {
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return;
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}
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const extensions = response.extensions || (response.extensions = Object.create(null));
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if (typeof extensions.tracing !== 'undefined') {
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throw new Error(PACKAGE_NAME + ": Could not add `tracing` to " +
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"`extensions` since `tracing` was unexpectedly already present.");
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}
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extensions.tracing = {
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version: 1,
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startTime: startWallTime.toISOString(),
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endTime: endWallTime.toISOString(),
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duration: durationHrTimeToNanos(duration),
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execution: {
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resolvers: resolverCalls.map(resolverCall => {
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const startOffset = durationHrTimeToNanos(resolverCall.startOffset);
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const duration = resolverCall.endOffset
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? durationHrTimeToNanos(resolverCall.endOffset) - startOffset
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: 0;
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return {
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path: [...graphql_1.responsePathAsArray(resolverCall.path)],
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parentType: resolverCall.parentType.toString(),
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fieldName: resolverCall.fieldName,
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returnType: resolverCall.returnType.toString(),
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startOffset,
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duration,
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};
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}),
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},
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};
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},
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};
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},
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});
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function durationHrTimeToNanos(hrtime) {
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return hrtime[0] * 1e9 + hrtime[1];
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}
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//# sourceMappingURL=index.js.map
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