librato-node/lib/client.js

A node.js client for Librato Metrics (http://metrics.librato.com/)

// Generated by CoffeeScript 1.12.7
(function() {
  var Client, _, packageJson, request, util;

  request = require('requestretry');

  util = require('util');

  packageJson = require('../package.json');

  _ = require('lodash');

  Client = (function() {
    Client.prototype.endpoint = 'https://metrics-api.librato.com/v1';

    function Client(arg) {
      var email, requestOptions, simulate, token;
      email = arg.email, token = arg.token, simulate = arg.simulate, requestOptions = arg.requestOptions;
      if (!email || !token) {
        if (!simulate) {
          console.warn("librato-node metrics disabled: no email or token provided.");
        }
      } else {
        this._requestOptions = _.defaults(requestOptions || {}, {
          method: 'POST',
          uri: this.endpoint + "/metrics",
          headers: {},
          maxAttempts: 3,
          retryDelay: 100,
          delayStrategy: function() {
            return Math.pow(2, this.attempts) * (this.retryDelay / 2);
          }
        });
        this._requestOptions.headers = _.defaults(this._requestOptions.headers, {
          authorization: 'Basic ' + new Buffer(email + ":" + token).toString('base64'),
          'user-agent': "librato-node/" + packageJson.version
        });
      }
    }

    Client.prototype.send = function(json, cb) {
      var requestOptions;
      if (this._requestOptions == null) {
        return process.nextTick(cb);
      }
      requestOptions = _.extend({}, this._requestOptions, {
        json: json
      });
      return request(requestOptions, function(err, res, body) {
        if ((res != null ? res.attempts : void 0) > 1) {
          console.warn("librato API required " + res.attempts + " retries");
        }
        if (err != null) {
          return cb(err);
        }
        if (res.statusCode > 399 || ((body != null ? body.errors : void 0) != null)) {
          return cb(new Error("Error sending to Librato: " + (util.inspect(body, {
            depth: null
          })) + " (statusCode: " + res.statusCode + ")"));
        }
        return cb(null, body);
      });
    };

    return Client;

  })();

  module.exports = Client;

}).call(this);

//# sourceMappingURL=client.js.map