@znode/influx/lib/fmt.js

Node.js Influx Client

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.item = exports.timestamp = exports.fields = exports.tags = void 0;
const map_1 = require("@zodash/map");
const utils = require("./utils");
function tags(tags) {
    return !tags
        ? null
        : map_1.map(tags, ([k, v]) => {
            if (utils.hasCharNeedBeEscaped(k)) {
                k = utils.escape(k);
            }
            if (utils.hasCharNeedBeEscaped(v)) {
                v = utils.escape(v);
            }
            return `${k}=${v}`;
        }).join(',');
}
exports.tags = tags;
function fields(fields) {
    return !fields
        ? null
        : map_1.map(fields, ([k, v]) => {
            if (utils.hasCharNeedBeEscaped(k)) {
                k = utils.escape(k);
            }
            // why: https://docs.influxdata.com/influxdb/v1.8/write_protocols/line_protocol_tutorial/#quoting
            if (typeof v === 'string') {
                if (utils.hasCharNeedBeEscaped(v)) {
                    v = utils.escape(v);
                }
                return `${k}=${JSON.stringify(v)}`;
            }
            return `${k}=${v}`;
        }).join(',');
}
exports.fields = fields;
function timestamp(_timestamp) {
    if (!_timestamp) {
        _timestamp = Date.now();
    }
    if (typeof _timestamp === 'string') {
        return JSON.stringify(_timestamp);
    }
    return '' + _timestamp * 1e6;
}
exports.timestamp = timestamp;
function item(item) {
    utils.validateObjectKVUndefinedOrNull(item.tags);
    utils.validateObjectKVUndefinedOrNull(item.fields);
    const _tags = tags(item.tags);
    const _fields = fields(item.fields);
    const _timestamp = timestamp(item._timestamp);
    const chunks = [];
    if (!_tags) {
        chunks.push(item.measurement);
    }
    else {
        chunks.push(`${item.measurement},${_tags}`);
    }
    if (_fields)
        chunks.push(_fields);
    if (_timestamp)
        chunks.push(_timestamp);
    return chunks.join(' ');
}
exports.item = item;