sdmx-rest/lib/utils/url-generator-data2.js

SDMX REST API client for JavaScript

// Generated by CoffeeScript 2.7.0
(function() {
  var ApiNumber, ApiVersion, Handler, createDataQuery, createEntryPoint, createShortDataQuery, getKeyFromVersion, handleDataPathParams, handleDataQueryParams, handler, parseContext, parseFilter, validateDataForV2;

  ({ApiNumber, ApiVersion, getKeyFromVersion} = require('../utils/api-version'));

  ({createEntryPoint, validateDataForV2, parseContext, parseFilter} = require('../utils/url-generator-common'));

  createDataQuery = function(q, s) {
    var f, fc, filter, i, len, ref, url;
    validateDataForV2(q, s);
    url = createEntryPoint(s);
    fc = parseContext(q.context);
    url += `data/${fc[0]}/${fc[1]}/${fc[2]}/${fc[3]}/`;
    url += `${q.key}?`;
    if (q.filters) {
      ref = q.filters;
      for (i = 0, len = ref.length; i < len; i++) {
        filter = ref[i];
        f = parseFilter(filter);
        url += `c[${f[0]}]=${f[1]}&`;
      }
    }
    if (q.obsDimension) {
      url += `dimensionAtObservation=${q.obsDimension}&`;
    }
    url += `attributes=${q.attributes}`;
    url += `&measures=${q.measures}`;
    url += `&includeHistory=${q.history}`;
    if (q.updatedAfter) {
      url += `&updatedAfter=${q.updatedAfter}`;
    }
    if (q.firstNObs) {
      url += `&firstNObservations=${q.firstNObs}`;
    }
    if (q.lastNObs) {
      url += `&lastNObservations=${q.lastNObs}`;
    }
    return url;
  };

  handleDataPathParams = function(q) {
    var c, p;
    p = [];
    c = parseContext(q.context);
    if (q.key !== '*' || p.length) {
      p.push(q.key);
    }
    if (c[3] !== '*' || p.length) {
      p.push(c[3]);
    }
    if (c[2] !== '*' || p.length) {
      p.push(c[2]);
    }
    if (c[1] !== '*' || p.length) {
      p.push(c[1]);
    }
    if (c[0] !== '*' || p.length) {
      p.push(c[0]);
    }
    if (p.length) {
      return '/' + p.reverse().join('/');
    } else {
      return '';
    }
  };

  handleDataQueryParams = function(q) {
    var f, filter, i, len, p, ref;
    p = [];
    if (q.filters) {
      ref = q.filters;
      for (i = 0, len = ref.length; i < len; i++) {
        filter = ref[i];
        f = parseFilter(filter);
        p.push(`c[${f[0]}]=${f[1]}`);
      }
    }
    if (q.obsDimension) {
      p.push(`dimensionAtObservation=${q.obsDimension}`);
    }
    if (q.history) {
      p.push(`includeHistory=${q.history}`);
    }
    if (q.attributes !== 'dsd') {
      p.push(`attributes=${q.attributes}`);
    }
    if (q.measures !== 'all') {
      p.push(`measures=${q.measures}`);
    }
    if (q.updatedAfter) {
      p.push(`updatedAfter=${q.updatedAfter}`);
    }
    if (q.firstNObs) {
      p.push(`firstNObservations=${q.firstNObs}`);
    }
    if (q.lastNObs) {
      p.push(`lastNObservations=${q.lastNObs}`);
    }
    if (p.length > 0) {
      return '?' + p.reduceRight(function(x, y) {
        return x + '&' + y;
      });
    } else {
      return '';
    }
  };

  createShortDataQuery = function(q, s) {
    var p, u;
    validateDataForV2(q, s);
    u = createEntryPoint(s);
    u += 'data';
    p = handleDataPathParams(q);
    u += p;
    u += handleDataQueryParams(q);
    return u;
  };

  handler = Handler = class Handler {
    handle(q, s, skip) {
      var api;
      api = ApiNumber[getKeyFromVersion(s.api)];
      if (api < ApiNumber.v2_0_0) {
        throw Error(`SDMX 3.0 queries not allowed in ${s.api}`);
      } else if (skip) {
        return createShortDataQuery(q, s);
      } else {
        return createDataQuery(q, s);
      }
    }

  };

  exports.DataQuery2Handler = handler;

}).call(this);