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283 lines
10 KiB
283 lines
10 KiB
var Router = require('express').Router; |
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var elasticsearch = require('elasticsearch'); |
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const all = require('predicates').all; |
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const any = require('predicates').any; |
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const not = require('predicates').not; |
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const _ = require('lodash'); |
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/** ----------------------- sanitizers ----------------------- **/ |
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var sanitizers = { |
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autocomplete: require('../sanitizer/autocomplete'), |
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place: require('../sanitizer/place'), |
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search: require('../sanitizer/search'), |
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search_fallback: require('../sanitizer/search_fallback'), |
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structured_geocoding: require('../sanitizer/structured_geocoding'), |
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reverse: require('../sanitizer/reverse'), |
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nearby: require('../sanitizer/nearby') |
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}; |
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/** ----------------------- middleware ------------------------ **/ |
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var middleware = { |
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calcSize: require('../middleware/sizeCalculator'), |
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requestLanguage: require('../middleware/requestLanguage') |
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}; |
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/** ----------------------- controllers ----------------------- **/ |
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var controllers = { |
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coarse_reverse: require('../controller/coarse_reverse'), |
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mdToHTML: require('../controller/markdownToHtml'), |
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place: require('../controller/place'), |
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placeholder: require('../controller/placeholder'), |
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search: require('../controller/search'), |
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status: require('../controller/status') |
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}; |
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var queries = { |
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libpostal: require('../query/search'), |
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fallback_to_old_prod: require('../query/search_original'), |
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structured_geocoding: require('../query/structured_geocoding'), |
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reverse: require('../query/reverse'), |
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autocomplete: require('../query/autocomplete') |
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}; |
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/** ----------------------- controllers ----------------------- **/ |
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var postProc = { |
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trimByGranularity: require('../middleware/trimByGranularity'), |
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trimByGranularityStructured: require('../middleware/trimByGranularityStructured'), |
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distances: require('../middleware/distance'), |
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confidenceScores: require('../middleware/confidenceScore'), |
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confidenceScoresFallback: require('../middleware/confidenceScoreFallback'), |
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confidenceScoresReverse: require('../middleware/confidenceScoreReverse'), |
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accuracy: require('../middleware/accuracy'), |
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dedupe: require('../middleware/dedupe'), |
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interpolate: require('../middleware/interpolate'), |
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localNamingConventions: require('../middleware/localNamingConventions'), |
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renamePlacenames: require('../middleware/renamePlacenames'), |
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geocodeJSON: require('../middleware/geocodeJSON'), |
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sendJSON: require('../middleware/sendJSON'), |
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parseBoundingBox: require('../middleware/parseBBox'), |
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normalizeParentIds: require('../middleware/normalizeParentIds'), |
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assignLabels: require('../middleware/assignLabels'), |
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changeLanguage: require('../middleware/changeLanguage') |
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}; |
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// predicates that drive whether controller/search runs |
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const hasResponseData = require('../controller/predicates/has_response_data'); |
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const hasRequestErrors = require('../controller/predicates/has_request_errors'); |
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const isCoarseReverse = require('../controller/predicates/is_coarse_reverse'); |
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const isAdminOnlyAnalysis = require('../controller/predicates/is_admin_only_analysis'); |
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// shorthand for standard early-exit conditions |
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const hasResponseDataOrRequestErrors = any(hasResponseData, hasRequestErrors); |
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const serviceWrapper = require('pelias-microservice-wrapper').service; |
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const PlaceHolder = require('../service/configurations/PlaceHolder'); |
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/** |
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* Append routes to app |
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* |
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* @param {object} app |
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* @param {object} peliasConfig |
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*/ |
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function addRoutes(app, peliasConfig) { |
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const esclient = elasticsearch.Client(peliasConfig.esclient); |
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const isPipServiceEnabled = require('../controller/predicates/is_service_enabled')(peliasConfig.api.pipService); |
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const pipService = require('../service/pointinpolygon')(peliasConfig.api.pipService); |
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const placeholderConfiguration = new PlaceHolder(peliasConfig.api.services.placeholder); |
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const placeholderService = serviceWrapper(placeholderConfiguration); |
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const isPlaceholderServiceEnabled = _.constant(placeholderConfiguration.isEnabled()); |
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const coarse_reverse_should_execute = all( |
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not(hasRequestErrors), isPipServiceEnabled, isCoarseReverse |
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); |
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const placeholderShouldExecute = all( |
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not(hasResponseDataOrRequestErrors), isPlaceholderServiceEnabled, isAdminOnlyAnalysis |
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); |
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// execute under the following conditions: |
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// - there are no errors or data |
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// - request is not coarse OR pip service is disabled |
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const original_reverse_should_execute = all( |
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not(hasResponseDataOrRequestErrors), |
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any( |
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not(isCoarseReverse), |
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not(isPipServiceEnabled) |
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) |
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); |
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var base = '/v1/'; |
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/** ------------------------- routers ------------------------- **/ |
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var routers = { |
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index: createRouter([ |
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controllers.mdToHTML(peliasConfig.api, './public/apiDoc.md') |
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]), |
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attribution: createRouter([ |
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controllers.mdToHTML(peliasConfig.api, './public/attribution.md') |
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]), |
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search: createRouter([ |
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sanitizers.search.middleware, |
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middleware.requestLanguage, |
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middleware.calcSize(), |
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controllers.placeholder(placeholderService, placeholderShouldExecute), |
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// 3rd parameter is which query module to use, use fallback/geodisambiguation |
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// first, then use original search strategy if first query didn't return anything |
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controllers.search(peliasConfig.api, esclient, queries.libpostal, not(hasResponseDataOrRequestErrors)), |
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sanitizers.search_fallback.middleware, |
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controllers.search(peliasConfig.api, esclient, queries.fallback_to_old_prod, not(hasResponseDataOrRequestErrors)), |
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postProc.trimByGranularity(), |
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postProc.distances('focus.point.'), |
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postProc.confidenceScores(peliasConfig.api), |
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postProc.confidenceScoresFallback(), |
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postProc.interpolate(), |
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postProc.dedupe(), |
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postProc.accuracy(), |
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postProc.localNamingConventions(), |
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postProc.renamePlacenames(), |
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postProc.parseBoundingBox(), |
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postProc.normalizeParentIds(), |
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postProc.changeLanguage(), |
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postProc.assignLabels(), |
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postProc.geocodeJSON(peliasConfig.api, base), |
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postProc.sendJSON |
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]), |
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structured: createRouter([ |
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sanitizers.structured_geocoding.middleware, |
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middleware.requestLanguage, |
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middleware.calcSize(), |
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controllers.search(peliasConfig.api, esclient, queries.structured_geocoding, not(hasResponseDataOrRequestErrors)), |
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postProc.trimByGranularityStructured(), |
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postProc.distances('focus.point.'), |
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postProc.confidenceScores(peliasConfig.api), |
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postProc.confidenceScoresFallback(), |
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postProc.interpolate(), |
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postProc.dedupe(), |
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postProc.accuracy(), |
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postProc.localNamingConventions(), |
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postProc.renamePlacenames(), |
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postProc.parseBoundingBox(), |
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postProc.normalizeParentIds(), |
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postProc.changeLanguage(), |
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postProc.assignLabels(), |
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postProc.geocodeJSON(peliasConfig.api, base), |
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postProc.sendJSON |
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]), |
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autocomplete: createRouter([ |
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sanitizers.autocomplete.middleware, |
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middleware.requestLanguage, |
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controllers.search(peliasConfig.api, esclient, queries.autocomplete, not(hasResponseDataOrRequestErrors)), |
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postProc.distances('focus.point.'), |
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postProc.confidenceScores(peliasConfig.api), |
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postProc.dedupe(), |
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postProc.accuracy(), |
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postProc.localNamingConventions(), |
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postProc.renamePlacenames(), |
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postProc.parseBoundingBox(), |
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postProc.normalizeParentIds(), |
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postProc.changeLanguage(), |
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postProc.assignLabels(), |
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postProc.geocodeJSON(peliasConfig.api, base), |
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postProc.sendJSON |
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]), |
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reverse: createRouter([ |
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sanitizers.reverse.middleware, |
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middleware.requestLanguage, |
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middleware.calcSize(), |
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controllers.coarse_reverse(pipService, coarse_reverse_should_execute), |
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controllers.search(peliasConfig.api, esclient, queries.reverse, original_reverse_should_execute), |
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postProc.distances('point.'), |
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// reverse confidence scoring depends on distance from origin |
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// so it must be calculated first |
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postProc.confidenceScoresReverse(), |
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postProc.dedupe(), |
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postProc.accuracy(), |
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postProc.localNamingConventions(), |
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postProc.renamePlacenames(), |
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postProc.parseBoundingBox(), |
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postProc.normalizeParentIds(), |
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postProc.changeLanguage(), |
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postProc.assignLabels(), |
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postProc.geocodeJSON(peliasConfig.api, base), |
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postProc.sendJSON |
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]), |
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nearby: createRouter([ |
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sanitizers.nearby.middleware, |
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middleware.requestLanguage, |
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middleware.calcSize(), |
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controllers.search(peliasConfig.api, esclient, queries.reverse, not(hasResponseDataOrRequestErrors)), |
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postProc.distances('point.'), |
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// reverse confidence scoring depends on distance from origin |
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// so it must be calculated first |
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postProc.confidenceScoresReverse(), |
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postProc.dedupe(), |
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postProc.accuracy(), |
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postProc.localNamingConventions(), |
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postProc.renamePlacenames(), |
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postProc.parseBoundingBox(), |
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postProc.normalizeParentIds(), |
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postProc.changeLanguage(), |
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postProc.assignLabels(), |
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postProc.geocodeJSON(peliasConfig.api, base), |
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postProc.sendJSON |
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]), |
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place: createRouter([ |
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sanitizers.place.middleware, |
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middleware.requestLanguage, |
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controllers.place(peliasConfig.api, esclient), |
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postProc.accuracy(), |
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postProc.localNamingConventions(), |
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postProc.renamePlacenames(), |
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postProc.parseBoundingBox(), |
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postProc.normalizeParentIds(), |
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postProc.changeLanguage(), |
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postProc.assignLabels(), |
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postProc.geocodeJSON(peliasConfig.api, base), |
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postProc.sendJSON |
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]), |
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status: createRouter([ |
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controllers.status |
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]) |
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}; |
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// static data endpoints |
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app.get ( base, routers.index ); |
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app.get ( base + 'attribution', routers.attribution ); |
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app.get ( '/attribution', routers.attribution ); |
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app.get ( '/status', routers.status ); |
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// backend dependent endpoints |
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app.get ( base + 'place', routers.place ); |
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app.get ( base + 'autocomplete', routers.autocomplete ); |
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app.get ( base + 'search', routers.search ); |
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app.post( base + 'search', routers.search ); |
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app.get ( base + 'search/structured', routers.structured ); |
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app.get ( base + 'reverse', routers.reverse ); |
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app.get ( base + 'nearby', routers.nearby ); |
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} |
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/** |
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* Helper function for creating routers |
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* |
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* @param {[{function}]} functions |
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* @returns {express.Router} |
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*/ |
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function createRouter(functions) { |
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var router = Router(); // jshint ignore:line |
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functions.forEach(function (f) { |
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router.use(f); |
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}); |
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return router; |
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} |
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module.exports.addRoutes = addRoutes;
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