feat: cql2 filter extension for GET

Author: pjhartzell

src/lib/api.js

@@ -268,8 +268,9 @@ const extractCql2Filter = function (params) {
   let cql2Filter
   const { filter } = params
   if (filter) {
-    if (typeof filter !== 'object') {
-      throw new ValidationError('Invalid filter value, must be a JSON object')
+    if (typeof filter === 'string') {
+      const parsed = JSON.parse(filter)
+      cql2Filter = parsed
     } else {
       cql2Filter = { ...filter }
     }

tests/system/test-api-search-get.js

@@ -108,3 +108,37 @@ test('/search preserve bbox and datetime in next links', async (t) => {
   t.deepEqual(nextUrl.searchParams.get('bbox'), bbox)
   t.deepEqual(nextUrl.searchParams.get('datetime'), datetime)
 })
+
+test('/search filter, query, and item search in single request', async (t) => {
+  const fixtureFiles = [
+    'collection.json',
+    'collection2.json',
+    'LC80100102015050LGN00.json',
+    'LC80100102015082LGN00.json',
+    'collection2_item.json'
+  ]
+  const items = await Promise.all(fixtureFiles.map((x) => loadJson(x)))
+  await ingestItems(items)
+  await refreshIndices()
+
+  const response = await t.context.api.client.get('search', {
+    searchParams: new URLSearchParams({
+      collections: ['landsat-8-l1'],
+      query: JSON.stringify({
+        'view:sun_elevation': {
+          gt: 20
+        }
+      }),
+      filter: JSON.stringify({
+        op: '>',
+        args: [
+          {
+            property: 'eo:cloud_cover'
+          },
+          0.54
+        ]
+      })
+    })
+  })
+  t.is(response.features.length, 1)
+})

tests/system/test-api-search-post.js

@@ -537,11 +537,9 @@ test('/search preserve bbox in prev and next links', async (t) => {
   t.deepEqual(linkRel(response, 'next').body.bbox, bbox)
 })
 
-test('/search Query Extension', async (t) => {
+test('/search query extension', async (t) => {
   let response = null
 
-  // 3 items, 2 with platform landsat-8, 1 with platform2
-
   response = await t.context.api.client.post('search', {
     json: {}
   })
@@ -644,20 +642,14 @@ test('/search Query Extension', async (t) => {
   t.is(response.features.length, 0)
 })
 
-test('/search Filter Extension - Null filter', async (t) => {
-  // 3 items, 2 with platform landsat-8, 1 with platform2
-
-  let response = null
-
-  response = await t.context.api.client.post('search', {
+test('/search filter extension - empty filter', async (t) => {
+  const response = await t.context.api.client.post('search', {
     json: {}
   })
   t.is(response.features.length, 3)
 })
 
-test('/search Filter Extension - Comparison Operators', async (t) => {
-  // 3 items, 2 with platform landsat-8, 1 with platform2
-
+test('/search filter extension - comparison operators', async (t) => {
   let response = null
 
   // equal
@@ -786,9 +778,7 @@ test('/search Filter Extension - Comparison Operators', async (t) => {
   t.is(response.features.length, 3)
 })
 
-test('/search Filter Extension - Logical Operators', async (t) => {
-  // 3 items, 2 with platform landsat-8, 1 with platform2
-
+test('/search filter extension - logical operators', async (t) => {
   let response = null
 
   // and
@@ -931,12 +921,8 @@ test('/search Filter Extension - Logical Operators', async (t) => {
   t.is(response.features.length, 0)
 })
 
-test('/search Filter Extension - Timestamps', async (t) => {
-  // 3 items, 2 with platform landsat-8, 1 with platform2
-
-  let response = null
-
-  response = await t.context.api.client.post('search', {
+test('/search filter extension - handles timestamps', async (t) => {
+  const response = await t.context.api.client.post('search', {
     json: {
       filter: {
         op: '>',
@@ -952,10 +938,8 @@ test('/search Filter Extension - Timestamps', async (t) => {
   t.is(response.features.length, 1)
 })
 
-test('/search Combined Item Search and Filter and Query Extensions', async (t) => {
-  let response = null
-
-  response = await t.context.api.client.post('search', {
+test('/search filter, query, and item search in single request', async (t) => {
+  const response = await t.context.api.client.post('search', {
     json: {
       collections: ['landsat-8-l1'],
       query: {