removed the rest call and simulated JSON response as suggested

Signed-off-by: asararatnakar <[email protected]>

Author: asararatnakar

transforms/setters/api.graphql

@@ -1,34 +1,41 @@
-# We first transform the JSON result object from REST API the Graphql structure
-# and then map the JSON response to the fields corresponding to the GraphQL type.
+# This example demonstartes mapping a JSON response to the fields of the GraphQL.
 
 type Customer {
   cId: ID
   cName: String
   cAddress: Address
 }
+
 type Address {
   city: String
-  countryRegion: String
-  stateProvince: String
+  country: String
+  state: String
   street: String
   postalCode: String
 }
 
 type Query {
-  customer(id: ID): [Customer]
+  # ecmascript generates customer data to simulate a REST api with a JSON response.
+  # To verify with a real data source (API or a database) it is required to change the `endpoint` argument on the `@rest` directive.
+  # https://stepzen.com/docs/connecting-backends/how-to-connect-a-rest-service
+  customerByID(id: ID!): Customer
     @rest(
-      endpoint: "https://json2api-customers-zlwadjbovq-uc.a.run.app/customers?q=id+eq+$id;"
-      # The jq expression  transform each element of the array.
-      # StepZen takes care of calling jq for each element.
-      transforms: [
-        {
-          pathpattern: []
-          editor: """
-          jq:.[]|{id,name,cAddress:{street, city, stateProvince, countryRegion}}
-          """
-        }
-      ]
+      endpoint: "stepzen:empty"
+      ecmascript: """
+      function transformREST() {
+          var id = get('id')
+          if (id==1)
+            return ({"address":{"city":"Raleigh","country":"USA","postalCode":"54321","state":"NC","street":"101 Main St"},"id":"12345","name":"John Doe"})
+          else
+            return ({"address":{"city":"Hyderabad","country":"India","postalCode":"654231","state":"TS","street":"J.N.T.U Colony"},"id":"21345","name":"Siddarth A"})
+      }
+      """
+
       # mapping from JSON response values to the fields of the GraphQL result.
-      setters: [{ field: "cId", path: "id" }, { field: "cName", path: "name" }]
+      setters: [
+        { field: "cId", path: "id" } # cId mapped to 'id'
+        { field: "cName", path: "name" } # cName mapped to 'name'
+        { field: "cAddress", path: "address" } # cAddress mapped to 'address'
+      ]
     )
 }

transforms/setters/requests.graphql

@@ -0,0 +1,14 @@
+# maps some of JSON response values to the fields of the GraphQL result.
+query CustomerByID($id: ID!) {
+  customerByID(id: $id) {
+    cAddress {
+      city
+      country
+      state
+      street
+      postalCode
+    }
+    cId
+    cName
+  }
+}

transforms/setters/tests/Test.js

@@ -1,11 +1,58 @@
+const fs = require('fs');
+const path = require("node:path");
 const {
   deployAndRun,
+  stepzen,
   getTestDescription,
 } = require("../../../tests/gqltest.js");
 
 testDescription = getTestDescription("snippets", __dirname);
 
+const requestsFile = path.join(path.dirname(__dirname), 'requests.graphql');
+const requests = fs.readFileSync(requestsFile, 'utf8').toString();
+
 describe(testDescription, function () {
-  const tests = [];
-  return deployAndRun(__dirname, tests);
+  const tests = [
+    {
+      label: "customer-by-id-1",
+      query: requests,
+      operationName: 'CustomerByID',
+      variables: { id: 1 },
+      expected: {
+        customerByID: {
+          cAddress: {
+            city: "Raleigh",
+            country: "USA",
+            state: "NC",
+            street: "101 Main St",
+            postalCode: "54321"
+          },
+          cId: "12345",
+          cName: "John Doe"
+
+        }
+      }
+    },
+    {
+      label: "customer-by-id-100",
+      query: requests,
+      operationName: 'CustomerByID',
+      variables: { id: 100 },
+      expected: {
+        customerByID: {
+          cAddress: {
+            city: "Hyderabad",
+            country: "India",
+            state: "TS",
+            street: "J.N.T.U Colony",
+            postalCode: "654231"
+          },
+          cId: "21345",
+          cName: "Siddarth A"
+
+        }
+      }
+    }
+  ]
+  return deployAndRun(__dirname, tests, stepzen.admin);
 });