@uphold/opentelemetry-mutable-baggage
Version:
Package that allows an OpenTelemetry baggage to be mutable.
62 lines • 2.53 kB
JavaScript
;
/**
* This file was copied from '@opentelemetry/api' since it does export these utility functions since v2.
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.serializeKeyPairs = serializeKeyPairs;
exports.getKeyPairs = getKeyPairs;
exports.parsePairKeyValue = parsePairKeyValue;
exports.parseKeyPairsIntoRecord = parseKeyPairsIntoRecord;
const constants_1 = require("./constants");
const api_1 = require("@opentelemetry/api");
function serializeKeyPairs(keyPairs) {
return keyPairs.reduce((hValue, current) => {
const value = `${hValue}${hValue !== '' ? constants_1.BAGGAGE_ITEMS_SEPARATOR : ''}${current}`;
return value.length > constants_1.BAGGAGE_MAX_TOTAL_LENGTH ? hValue : value;
}, '');
}
function getKeyPairs(baggage) {
return baggage.getAllEntries().map(([key, value]) => {
let entry = `${encodeURIComponent(key)}=${encodeURIComponent(value.value)}`;
// include opaque metadata if provided
// NOTE: we intentionally don't URI-encode the metadata - that responsibility falls on the metadata implementation
if (value.metadata !== undefined) {
entry += constants_1.BAGGAGE_PROPERTIES_SEPARATOR + value.metadata.toString();
}
return entry;
});
}
function parsePairKeyValue(entry) {
const valueProps = entry.split(constants_1.BAGGAGE_PROPERTIES_SEPARATOR);
if (valueProps.length <= 0) {
return;
}
const keyPairPart = valueProps.shift();
if (!keyPairPart) {
return;
}
const separatorIndex = keyPairPart.indexOf(constants_1.BAGGAGE_KEY_PAIR_SEPARATOR);
if (separatorIndex <= 0) {
return;
}
const key = decodeURIComponent(keyPairPart.substring(0, separatorIndex).trim());
const value = decodeURIComponent(keyPairPart.substring(separatorIndex + 1).trim());
let metadata;
if (valueProps.length > 0) {
metadata = (0, api_1.baggageEntryMetadataFromString)(valueProps.join(constants_1.BAGGAGE_PROPERTIES_SEPARATOR));
}
return { key, metadata, value };
}
function parseKeyPairsIntoRecord(value) {
const result = {};
if (typeof value === 'string' && value.length > 0) {
value.split(constants_1.BAGGAGE_ITEMS_SEPARATOR).forEach(entry => {
const keyPair = parsePairKeyValue(entry);
if (keyPair !== undefined && keyPair.value.length > 0) {
result[keyPair.key] = keyPair.value;
}
});
}
return result;
}
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