Remove layer filter

src/tilegarden/src/api.js

@@ -38,23 +38,8 @@ const getPositionalFilters = (req) => {
     return remainder
 }
 
-// Returns a properly formatted list of layers
-// or an empty list if there are none
-const processLayers = (req) => {
-    if (req.queryStringParameters.layers) return JSON.parse(req.queryStringParameters.layers)
-    else if (req.queryStringParameters.layer ||
-             req.queryStringParameters.filter ||
-             req.queryStringParameters.filters) {
-        /* eslint-disable-next-line quotes */
-        throw HTTPError("Invalid argument, did you mean '&layers='?", 400)
-    }
-
-    return []
-}
-
 // Parses out the configuration specifications
 const processConfig = req => ({
-    s3bucket: req.queryStringParameters.s3bucket,
     config: req.pathParameters.config,
 })
 
@@ -114,10 +99,9 @@ api.get(
         try {
             const { z, x, y } = processCoords(req)
             const filters = getPositionalFilters(req)
-            const layers = processLayers(req)
             const configOptions = processConfig(req)
 
-            return imageTile(createMap(z, x, y, filters, layers, configOptions))
+            return imageTile(createMap(z, x, y, filters, configOptions))
                 .then(tile => writeToS3(tile, req))
                 .then(img => new APIBuilder.ApiResponse(img, IMAGE_HEADERS, 200))
                 .catch(handleError)

src/tilegarden/src/tiler.js

@@ -14,7 +14,6 @@ const readFile = promisify(require('fs').readFile)
 
 const addParamFilters = require('./util/param-filter')
 const bbox = require('./util/bounding-box')
-const filterVisibleLayers = require('./util/layer-filter')
 const HTTPError = require('./util/error-builder')
 const { parseXml, buildXml } = require('./util/xml-tools')
 
@@ -78,15 +77,14 @@ const fetchMapFile = (options) => {
  * @param y
  * @returns {Promise<mapnik.Map>}
  */
-module.exports.createMap = (z, x, y, filters, layers, configOptions) => {
+module.exports.createMap = (z, x, y, filters, configOptions) => {
     // Create a webmercator map with specified bounds
     const map = new mapnik.Map(TILE_WIDTH, TILE_HEIGHT)
     map.bufferSize = 64
 
     // Load map specification from xml string
     return fetchMapFile(configOptions)
         .then(parseXml)
-        .then(xmlJsObj => filterVisibleLayers(xmlJsObj, layers))
         .then(xmlJsObj => addParamFilters(xmlJsObj, filters))
         .then(buildXml)
         .then(xml => new Promise((resolve, reject) => {

src/tilegarden/tests/api.test.js

@@ -1,7 +1,6 @@
 const rewire = require('rewire')
 const api = rewire('../src/api'),
-    processCoords = api.__get__('processCoords'),
-    processLayers = api.__get__('processLayers')
+    processCoords = api.__get__('processCoords')
 
 describe('processCoords', () => {
     test('properly parses properly formatted coords', () => {
@@ -73,38 +72,3 @@ describe('processCoords', () => {
     })
 })
 
-describe('processLayers', () => {
-    test('properly parses list of layer', () => {
-        const req = {
-            queryStringParameters: {
-                layers: '["layer1","layer2","layer3","layer4"]'
-            }
-        }
-        expect(processLayers(req)).toEqual(['layer1','layer2','layer3','layer4'])
-    })
-
-    test('properly parses just one layer', () => {
-        const req = {
-            queryStringParameters: {
-                layers: '["layer"]'
-            }
-        }
-        expect(processLayers(req)).toEqual(['layer'])
-    })
-
-    test('properly parses no fields', () => {
-        const req = {
-            queryStringParameters: {}
-        }
-        expect(processLayers(req)).toEqual([])
-    })
-
-    test('properly parses a blank field', () => {
-        const req = {
-            queryStringParameters: {
-                layers: ''
-            }
-        }
-        expect(processLayers(req)).toEqual([])
-    })
-})