update main and add sample data

Author: nealwp

sample-data/sample.json

@@ -0,0 +1,56 @@
+{
+  "id": "64ea4cc2d2a30b1df2401816",
+  "index": 0,
+  "guid": "0ae4cc55-adf6-48c9-865c-839eebeb3515",
+  "accountBalance": "$3,280.97",
+  "picture": "http://placehold.it/32x32",
+  "age": 20,
+  "eyeColor": "blue",
+  "name": "Shaw Fulton",
+  "profileInfo": {
+      "gender": "male",
+      "company": "LIMOZEN",
+      "email": "[email protected]",
+      "phone": "+1 (827) 443-2267",
+      "address": "637 Guernsey Street, Driftwood, Missouri, 5848",
+      "about": "Deserunt aliquip commodo minim qui qui non eiusmod nisi mollit veniam. Ullamco velit elit labore do aliqua et amet. Et ex quis voluptate laborum occaecat mollit. Adipisicing aliquip aliqua exercitation officia ex ex dolore id adipisicing ullamco.\r\n"
+  },
+  "otherDataPoints": {
+      "registered": "2015-02-10T12:39:26 +08:00",
+      "latitude": 32.667598,
+      "longitude": 4.219472,
+      "greeting": "Hello, Shaw Fulton! You have 3 unread messages.",
+      "favoriteFruit": "banana"
+  },
+  "mixedInNestedObjects": {
+      "isNormal": "i sure hope so",
+      "whatItsAllAbout": "hokey-pokey",
+      "funkyPlaceholder": {"favoritePhilosopher": "Kant", "shoeSize": 14.5},
+      "corporateAlliances": {"centristEpicenter": "total", "garbageCollectionCycles": "Seasonal"},
+      "steakhousePortaits": {"fieldGoal": 42, "campsiteWebsite": "dogetoutmore.com"}
+  },
+  "dogParkGeoJson": {
+    "type": "FeatureCollection",
+    "features": [
+      {
+        "type": "Feature",
+        "id": 16,
+        "geometry": {
+          "type": "Polygon",
+          "coordinates": [
+            [
+              [-32.667598, -4.239272],
+              [-32.767999, -4.319272],
+              [-32.687588, -4.649872],
+              [-32.617548, -4.219892],
+              [-32.622598, -4.159472],
+              [-32.667533, -4.169472],
+              [-32.567598, -4.789222],
+              [-32.617191, -4.919373]
+            ]
+          ]
+        }
+      }
+    ]
+  }
+}

src/index.spec.ts

@@ -2,33 +2,10 @@ import { main } from '.'
 
 describe('main', () => {
 
-    it('should log unknown command message if no command is passed', () => {
+    it('should log error if no filepath is passed', () => {
         process.argv = ['foo', 'bar']
         console.log = jest.fn()
         main()
-        expect(console.log).toHaveBeenCalledWith('Unknown command: undefined')
-    })
-
-    it('should log unknown command message if unknown command is passed', () => {
-        process.argv = ['foo', 'bar', 'baz']
-        console.log = jest.fn()
-        main()
-        expect(console.log).toHaveBeenCalledWith('Unknown command: baz')
-    })
-
-    describe('hello', () => {
-        it('should print hello world if no arguments are passed', () => {
-            process.argv = ['foo', 'bar', 'hello']
-            console.log = jest.fn()
-            main()
-            expect(console.log).toHaveBeenCalledWith('Hello world!')
-        })
-
-        it('should print hello message with input argument', () => {
-            process.argv = ['foo', 'bar', 'hello', 'charlie']
-            console.log = jest.fn()
-            main()
-            expect(console.log).toHaveBeenCalledWith('Hello charlie')
-        })
+        expect(console.log).toHaveBeenCalled()
     })
 })

src/index.ts

@@ -1,33 +1,31 @@
 #!/usr/bin/env node
 
+import { readJsonFileContent, writeToStdOut } from "./io"
+import { jsonToSqlView } from "./parser"
+
 export const main = () => {
     const args = process.argv.slice(2)
-    const command = args[0]
+    const inputFilePath = args[0]
+
+    if(!inputFilePath) {
+        printHelp();
+        return
+    }
 
-    switch (command) {
-        case "hello":
-            const helloArgs = args.slice(1)
-            if (helloArgs[0]) {
-                console.log(`Hello ${helloArgs[0]}`)
-            } else {
-                console.log(`Hello world!`)
-            }
-            break
-        case "help":
-            showHelp()
-        default:
-            console.log(`Unknown command: ${command}`)
+    try {
+        const fileContent = readJsonFileContent(inputFilePath)
+        const sqlOutput = jsonToSqlView(fileContent)
+        writeToStdOut(sqlOutput.parentSql)
+        sqlOutput.childQueries.forEach(q => writeToStdOut(q))
+    } catch(err) {
+        console.log(err)
     }
 }
 
-main(); 
+function printHelp() {
+    const msg = `Error: no file path provided.\nUsage:\n\nnpx @nealwp/blobview <filepath>\n`
+    console.log(msg)
+}
 
-const showHelp = () => {
-    console.log(`
-    Available commands:
-    
-    hello <name>    prints a hello message
-    help            prints this message
+main(); 
 
-    `)
-}

src/parser.spec.ts

@@ -12,9 +12,8 @@ describe('parser', () => {
                 }
             }
 
-            const json = JSON.stringify(testObj)
             const expectedResult = ['SELECT\nCAST(JSON_VALUE(json_blob.topKey.nestedKey1) as INTEGER) as nested_key_1\n, CAST(JSON_VALUE(json_blob.topKey.nestedKey2) as STRING) as nested_key_2\n, CAST(JSON_VALUE(json_blob.topKey.nestedKey3) as DECIMAL) as nested_key_3\nFROM <project>.<datastream>.<dataset>']
-            const output = jsonToSqlView(json)
+            const output = jsonToSqlView(testObj)
             expect(output.childQueries).toEqual(expectedResult) 
         })
 
@@ -26,13 +25,12 @@ describe('parser', () => {
                 topKey3: { nestedKey3: 3.14 }
             }
 
-            const json = JSON.stringify(testObj)
             const expectedResult = [
                 'SELECT\nCAST(JSON_VALUE(json_blob.topKey1.nestedKey1) as STRING) as nested_key_1\nFROM <project>.<datastream>.<dataset>',
                 'SELECT\nCAST(JSON_VALUE(json_blob.topKey2.nestedKey2) as INTEGER) as nested_key_2\nFROM <project>.<datastream>.<dataset>',
                 'SELECT\nCAST(JSON_VALUE(json_blob.topKey3.nestedKey3) as DECIMAL) as nested_key_3\nFROM <project>.<datastream>.<dataset>',
             ]
-            const output = jsonToSqlView(json)
+            const output = jsonToSqlView(testObj)
             expect(output.childQueries).toEqual(expectedResult) 
         })
 
@@ -42,9 +40,8 @@ describe('parser', () => {
                 key2: 'abcd',
                 key3: 3.14
             }
-            const json = JSON.stringify(testObj)
             const expectedResult = 'SELECT\nCAST(JSON_VALUE(json_blob.key1) as INTEGER) as key_1\n, CAST(JSON_VALUE(json_blob.key2) as STRING) as key_2\n, CAST(JSON_VALUE(json_blob.key3) as DECIMAL) as key_3\nFROM <project>.<datastream>.<dataset>'
-            const output = jsonToSqlView(json)
+            const output = jsonToSqlView(testObj)
             expect(output.parentSql).toEqual(expectedResult)
         })
 
@@ -59,18 +56,16 @@ describe('parser', () => {
                     features: ["feature", "collection", "here"]
                 }
             }
-            const json = JSON.stringify(testObj)
             const expectedResult = 'SELECT\nTO_JSON_STRING(json_blob.geoJsonThing1) as geo_json_thing_1\n, TO_JSON_STRING(json_blob.geoJsonThing2) as geo_json_thing_2\nFROM <project>.<datastream>.<dataset>'
-            const output = jsonToSqlView(json)
+            const output = jsonToSqlView(testObj)
             expect(output.parentSql).toEqual(expectedResult)
         })
 
         it('should json string deeply nested objects', () => {
             const testObj = { nestedKey: { deeplyNestedKey: { some: 'key' } } }
 
-            const json = JSON.stringify(testObj)
             const expectedResult = ['SELECT\nTO_JSON_STRING(json_blob.nestedKey.deeplyNestedKey) as deeply_nested_key\nFROM <project>.<datastream>.<dataset>']
-            const output = jsonToSqlView(json)
+            const output = jsonToSqlView(testObj)
             expect(output.childQueries).toEqual(expectedResult)
         })
     })

src/parser.ts

@@ -43,8 +43,7 @@ export function snakeCase(str: string) {
     });
 }
 
-export function jsonToSqlView(rawJson: string) {
-    const json = JSON.parse(rawJson)
+export function jsonToSqlView(json: any) {
     const keys = Object.keys(json)
     const childQueries = [];