Apurva Shukla- Module 5

Module 5/Problem 1/explanation.md

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+## Explanation
+
+Opeartions: modify-overwrite-beta, shift , remove
+
+The transformation involves following operation:
+
+* **`modify-overwrite-beta`** : Adds "customer.address" and "customer.fullname" fields to each order by concatenating address fields and customer names, also created a copy of items in each order and naming it itemTemp.
+
+* **`modify-overwrite-beta`** : Adds "inverseValue" and "temp" fields to each item by dividing 1 by the price effictively resulting in multipication of price and quantity and storing it in variable named temp, inside itemTemp lsit.
+
+* **`shift`**: Restructures the JSON by moving the temp value (total amount of each order) into a list named total containing the price of each order, and placing it on each order object.
+
+* **`modify-overwrite-beta`**" : Computes the sum of "total" values within "orders" and assigns it to each order's "total" field.
+
+* `"remove"`: Removes "firstName", and "lastName" fields from each order.

Module 5/Problem 1/problem1.json

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+Input:
+
+
+{
+  "orders": [
+    {
+      "orderId": 1,
+      "orderDate": "2022-02-20T12:34:56Z",
+      "customer": {
+        "customerId": 1,
+        "firstName": "John",
+        "lastName": "Doe",
+        "email": "[email protected]",
+        "address": {
+          "street": "123 Main St",
+          "city": "Anytown",
+          "state": "CA",
+          "zip": "12345"
+        }
+      },
+      "items": [
+        {
+          "itemId": 1,
+          "name": "Product A",
+          "quantity": 2,
+          "price": 10
+        },
+        {
+          "itemId": 2,
+          "name": "Product B",
+          "quantity": 1,
+          "price": 20
+        }
+      ]
+    },
+    {
+      "orderId": 2,
+      "orderDate": "2022-02-21T09:12:34Z",
+      "customer": {
+        "customerId": 2,
+        "firstName": "Jane",
+        "lastName": "Smith",
+        "email": "[email protected]",
+        "address": {
+          "street": "456 Oak St",
+          "city": "Somewhere",
+          "state": "NY",
+          "zip": "67890"
+        }
+      },
+      "items": [
+        {
+          "itemId": 3,
+          "name": "Product C",
+          "quantity": 3,
+          "price": 15
+        }
+      ]
+    }
+  ]
+}
+
+
+
+Transformation:
+
+[
+  {
+    "operation": "modify-overwrite-beta",
+    "spec": {
+      "orders": {
+        "*": {
+          "customer": {
+            "address": "=concat(@(1,address.street),' ',@(1,address.city), ' ', @(1,address.state), ' ',@(1,address.zip))",
+            "fullname": "=concat(@(1,firstName),' ',@(1,lastName))"
+          },
+          "itemTemp": "@(1,items)"
+        }
+      }
+    }
+  },
+
+  {
+    "operation": "modify-overwrite-beta",
+    "spec": {
+      "orders": {
+        "*": {
+          "itemTemp": {
+            "*": {
+              "inverseValue": "=divide(1,@(1,price))",
+              "temp": "=divideAndRound(2, @(1,quantity), @(1,inverseValue))"
+            }
+          }
+        }
+      }
+    }
+  },
+  {
+    "operation": "shift",
+    "spec": {
+      "orders": {
+        "*": {
+          "*": "orders[&1].&",
+          "itemTemp": {
+            "*": {
+              "temp": "orders[#4].total"
+            }
+          }
+        }
+      }
+    }
+    },
+  {
+    "operation": "modify-overwrite-beta",
+    "spec": {
+      "orders": {
+        "*": {
+          "total": "=doubleSum(@(1,total))"
+        }
+      }
+    }
+    },
+
+  {
+    "operation": "remove",
+    "spec": {
+      "orders": {
+        "*": {
+          "items": {
+            "*": {
+              "inverseValue": "",
+              "temp": ""
+            }
+          },
+          "customer": {
+            "firstName": "",
+            "lastName": ""
+          }
+        }
+      }
+    }
+    }
+]
+
+
+Output:
+
+{
+  "orders" : [ {
+    "orderId" : 1,
+    "orderDate" : "2022-02-20T12:34:56Z",
+    "customer" : {
+      "customerId" : 1,
+      "firstName" : "John",
+      "lastName" : "Doe",
+      "email" : "[email protected]",
+      "address" : "123 Main St Anytown CA 12345"
+    },
+    "items" : [ {
+      "itemId" : 1,
+      "name" : "Product A",
+      "quantity" : 2,
+      "price" : 10
+    }, {
+      "itemId" : 2,
+      "name" : "Product B",
+      "quantity" : 1,
+      "price" : 20
+    } ],
+    "total" : 40.0
+  }, {
+    "orderId" : 2,
+    "orderDate" : "2022-02-21T09:12:34Z",
+    "customer" : {
+      "customerId" : 2,
+      "firstName" : "Jane",
+      "lastName" : "Smith",
+      "email" : "[email protected]",
+      "address" : "456 Oak St Somewhere NY 67890"
+    },
+    "items" : [ {
+      "itemId" : 3,
+      "name" : "Product C",
+      "quantity" : 3,
+      "price" : 15
+    } ],
+    "total" : 45.0
+  } ]
+}

Module 5/Problem 10/explanation.md

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+### Explanation: 
+
+
+The transformation involves following operations:
+
+* `modify-overwrite-beta:` The field 'fullname' is splitted with space and the the values of generated lists are assigned to 'first_name' and 'last_name' using firstElement and lastElement methods, also the size of  list 'phone_numbers' is calculated using size function and is mapped to key 'phone_number_count'.
+
+* `remove`:  Removes the "fullname" and "name" fields from the output JSON.

Module 5/Problem 10/problem10.json

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+Input:
+
+{
+  "name": "John Smith",
+  "age": 35,
+  "address": {
+    "street": "123 Main St",
+    "city": "Anytown",
+    "state": "CA",
+    "zip": "12345"
+  },
+  "phone_numbers": [
+    {
+      "type": "home",
+      "number": "555-1234"
+    },
+    {
+      "type": "work",
+      "number": "555-5678"
+    }
+  ]
+}
+
+Transformation:
+
+[
+  {
+    "operation": "modify-overwrite-beta",
+    "spec": {
+      "fullname": "=split(' ',@(2,name))",
+      "first_name": "=firstElement(@(2,fullname))",
+      "last_name": "=lastElement(@(2,fullname))",
+      "phone_number_count": "=size(1,phone_numbers)"
+    }
+  },
+  {
+    "operation": "remove",
+    "spec": {
+      "fullname": "",
+      "name": ""
+    }
+  }
+]
+
+
+Ouput:
+
+{
+  "age" : 35,
+  "address" : {
+    "street" : "123 Main St",
+    "city" : "Anytown",
+    "state" : "CA",
+    "zip" : "12345"
+  },
+  "phone_numbers" : [ {
+    "type" : "home",
+    "number" : "555-1234"
+  }, {
+    "type" : "work",
+    "number" : "555-5678"
+  } ],
+  "first_name" : "John",
+  "last_name" : "Smith",
+  "phone_number_count" : 2
+}
+

Module 5/Problem 11/explanation.md

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+### Explanation: 
+
+=> problem_11b
+
+The transformation involves following operations:
+
+* `shift:` ': navigate to each object to items list, access the  value of name and value fields and map them to items list 2 level up with keys itemName and itemValue respectively.
+

Module 5/Problem 11/problem11.json

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+Input:
+
+{
+  "items": [
+    {
+      "name": "item1",
+      "value": 10
+    },
+    {
+      "name": "item2",
+      "value": 20
+    }
+  ]
+}
+
+
+Transformation:
+
+[
+  {
+    "operation": "modify-overwrite-beta",
+    "spec": {
+      "items": {
+        "*": {
+          "itemName": "@(1,name)",
+          "itemValue": "@(1,value)"
+        }
+      }
+    }
+  },
+  {
+    "operation": "remove",
+    "spec": {
+      "items": {
+        "*": {
+          "name": "",
+          "value": ""
+        }
+      }
+    }
+  }
+]
+
+
+Output:
+
+{
+  "items" : [ {
+    "itemName" : "item1",
+    "itemValue" : 10
+  }, {
+    "itemName" : "item2",
+    "itemValue" : 20
+  } ]
+}

Module 5/Problem 11/problem11_b.json

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+Input:
+
+{
+  "items": [
+    {
+      "name": "item1",
+      "value": 10
+    },
+    {
+      "name": "item2",
+      "value": 20
+    }
+  ]
+}
+
+
+Transformation:
+[
+    {
+      "operation": "shift",
+      "spec": {
+        "items": {
+          "*": {
+            "name": "items[#2].itemName",
+            "value": "items[#2].itemValue"
+          }
+        }
+      }
+    }
+  ]
+
+
+Output:
+
+{
+  "items" : [ {
+    "itemName" : "item1",
+    "itemValue" : 10
+  }, {
+    "itemName" : "item2",
+    "itemValue" : 20
+  } ]
+}