Feature/code enhance: Code enhancement and proper documentation

README.md

@@ -3,7 +3,7 @@
 # ImageKit.io Node.js SDK
 
 [![Node CI](https://github.com/imagekit-developer/imagekit-nodejs/workflows/Node%20CI/badge.svg)](https://github.com/imagekit-developer/imagekit-nodejs/)
-[![npm version](https://img.shields.io/npm/v/imagekit)](https://www.npmjs.com/package/imagekit) 
+[![npm version](https://img.shields.io/npm/v/imagekit)](https://www.npmjs.com/package/imagekit)
 [![codecov](https://codecov.io/gh/imagekit-developer/imagekit-nodejs/branch/master/graph/badge.svg)](https://codecov.io/gh/imagekit-developer/imagekit-nodejs)
 [![Try imagekit on RunKit](https://badge.runkitcdn.com/imagekit.svg)](https://npm.runkit.com/imagekit)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
@@ -45,6 +45,10 @@ Use the following command to download this module. Use the optional `--save` par
 ```
 npm install imagekit --save
 # or
+pnpm install imagekit --save
+# or
+bun install imagekit // if you are using [Bun](https://bun.sh/) compiler
+# or
 yarn add imagekit
 ```
 
@@ -358,7 +362,7 @@ imagekit.upload({
     else console.log(result);
 });
 
-// Using Promises 
+// Using Promises
 
 imagekit.upload({
     file : <url|base_64|binary>, //required
@@ -412,7 +416,7 @@ imagekit.listFiles({
 });
 
 
-// Using Promises 
+// Using Promises
 
 imagekit.listFiles({
     skip : 10,
@@ -437,7 +441,7 @@ imagekit.getFileDetails("file_id", function(error, result) {
 });
 
 
-// Using Promises 
+// Using Promises
 
 imagekit.getFileDetails("file_id")
 }).then(response => {
@@ -460,7 +464,7 @@ imagekit.getFileVersions("file_id", function(error, result) {
 });
 
 
-// Using Promises 
+// Using Promises
 
 imagekit.getFileVersions("file_id")
 }).then(response => {
@@ -486,7 +490,7 @@ imagekit.getFileVersionDetails({
 });
 
 
-// Using Promises 
+// Using Promises
 
 imagekit.getFileVersionDetails({
     fileId: "file_id",
@@ -508,7 +512,7 @@ Note: If `publish` is included in the update options, no other parameters are al
 ```js
 // Using Callback Function
 
-imagekit.updateFileDetails("file_id", { 
+imagekit.updateFileDetails("file_id", {
     tags : ['image_tag'],
     customCoordinates : "10,10,100,100",
     extensions: [
@@ -524,7 +528,7 @@ imagekit.updateFileDetails("file_id", {
 });
 
 
-// Using Promises 
+// Using Promises
 
 imagekit.updateFileDetails("file_id", {
     publish: {
@@ -614,7 +618,7 @@ imagekit.deleteFile("file_id", function(error, result) {
 });
 
 
-// Using Promises 
+// Using Promises
 
 imagekit.deleteFile("file_id").then(response => {
     console.log(response);
@@ -639,7 +643,7 @@ imagekit.deleteFileVersion({
 });
 
 
-// Using Promises 
+// Using Promises
 
 imagekit.deleteFile({
     fileId: "file_id",
@@ -664,7 +668,7 @@ imagekit.bulkDeleteFiles(["file_id_1", "file_id_2"], function(error, result) {
 });
 
 
-// Using Promises 
+// Using Promises
 
 imagekit.bulkDeleteFiles(["file_id_1", "file_id_2"]).then(response => {
     console.log(response);
@@ -923,7 +927,7 @@ imagekit.purgeCache("full_url", function(error, result) {
 });
 
 
-// Using Promises 
+// Using Promises
 
 imagekit.purgeCache("full_url").then(response => {
     console.log(response);
@@ -945,7 +949,7 @@ imagekit.getPurgeCacheStatus("cache_request_id", function(error, result) {
 });
 
 
-// Using Promises 
+// Using Promises
 
 imagekit.getPurgeCacheStatus("cache_request_id").then(response => {
     console.log(response);
@@ -966,7 +970,7 @@ imagekit.getFileMetadata("file_id", function(error, result) {
 });
 
 
-// Using Promises 
+// Using Promises
 imagekit.getFileMetadata("file_id")
 }).then(response => {
     console.log(response);
@@ -985,7 +989,7 @@ imagekit.getFileMetadata("https://ik.imagekit.io/your_imagekit_id/sample.jpg", f
 });
 
 
-// Using Promises 
+// Using Promises
 imagekit.getFileMetadata("https://ik.imagekit.io/your_imagekit_id/sample.jpg")
 }).then(response => {
     console.log(response);
@@ -1010,15 +1014,15 @@ imagekit.createCustomMetadataField(
             minValue: 1000,
             maxValue: 3000
         }
-    }, 
+    },
     function(error, result) {
         if(error) console.log(error);
         else console.log(result);
     }
 );
 
 
-// Using Promises 
+// Using Promises
 
 imagekit.createCustomMetadataField(
     {
@@ -1047,15 +1051,15 @@ Get the list of all custom metadata fields as per the [API documentation here](h
 imagekit.getCustomMetadataFields(
     {
        includeDeleted: false // optional
-    }, 
+    },
     function(error, result) {
         if(error) console.log(error);
         else console.log(result);
     }
 );
 
 
-// Using Promises 
+// Using Promises
 
 imagekit.getCustomMetadataFields(
     {
@@ -1082,15 +1086,15 @@ imagekit.updateCustomMetadataField(
             minValue: 500,
             maxValue: 2500
         }
-    }, 
+    },
     function(error, result) {
         if(error) console.log(error);
         else console.log(result);
     }
 );
 
 
-// Using Promises 
+// Using Promises
 
 imagekit.updateCustomMetadataField(
     "field_id",
@@ -1099,7 +1103,7 @@ imagekit.updateCustomMetadataField(
             minValue: 500,
             maxValue: 2500
         }
-    }, 
+    },
 ).then(response => {
     console.log(response);
 }).catch(error => {
@@ -1123,7 +1127,7 @@ imagekit.deleteCustomMetadataField(
 );
 
 
-// Using Promises 
+// Using Promises
 
 imagekit.deleteCustomMetadataField(
     "field_id"

libs/manage/cache.ts

@@ -13,7 +13,7 @@ import request from "../../utils/request";
     Interfaces
 */
 import { IKCallback } from "../interfaces/IKCallback";
-import { ImageKitOptions, PurgeCacheResponse, PurgeCacheStatusResponse } from "../interfaces/";
+import { ImageKitOptions, PurgeCacheResponse, PurgeCacheStatusResponse } from "../interfaces";
 
 const purgeCache = function (url: string, defaultOptions: ImageKitOptions, callback?: IKCallback<PurgeCacheResponse>) {
   if (!url && !url.length) {

libs/manage/custom-metadata-field.ts

@@ -19,7 +19,7 @@ import {
     CustomMetadataField,
     UpdateCustomMetadataFieldOptions,
     GetCustomMetadataFieldsOptions,
-} from "../interfaces/";
+} from "../interfaces";
 
 const create = function (createCustomMetadataFieldOptions: CreateCustomMetadataFieldOptions, defaultOptions: ImageKitOptions, callback?: IKCallback<CustomMetadataField>) {
     const { name, label, schema } = createCustomMetadataFieldOptions;

libs/manage/file.ts

@@ -1,4 +1,4 @@
-import _ from "lodash";
+import { isObject } from 'lodash';
 
 /*
   Constants
@@ -35,7 +35,7 @@ import {
   RestoreFileVersionOptions,
   RenameFileOptions,
   RenameFileResponse,
-} from "../interfaces/";
+} from "../interfaces";
 import ImageKit from "../..";
 
 /*
@@ -198,7 +198,7 @@ const updateDetails = function (
     return;
   }
 
-  if (!_.isObject(updateData)) {
+  if (!isObject(updateData)) {
     respond(true, errorMessages.UPDATE_DATA_MISSING, callback);
     return;
   }
@@ -235,12 +235,12 @@ const listFiles = function (
   defaultOptions: ImageKitOptions,
   callback?: IKCallback<FileObject[]>,
 ) {
-  if (listOptions && !_.isObject(listOptions)) {
+  if (listOptions && !isObject(listOptions)) {
     respond(true, errorMessages.INVALID_LIST_OPTIONS, callback);
     return;
   }
 
-  if (listOptions && listOptions.tags && _.isArray(listOptions.tags) && listOptions.tags.length) {
+  if (listOptions && listOptions.tags && Array.isArray(listOptions.tags) && listOptions.tags.length) {
     listOptions.tags = listOptions.tags.join(",");
   }
 
@@ -635,7 +635,7 @@ const createFolder = function (
   request(requestOptions, defaultOptions, callback);
 };
 
-/* 
+/*
     Delete folder
 */
 const deleteFolder = function (folderPath: string, defaultOptions: ImageKitOptions, callback?: IKCallback<void>) {

libs/upload/index.ts

@@ -1,5 +1,5 @@
 import _ from "lodash";
-import errorMessages from "../../libs/constants/errorMessages";
+import errorMessages from "../constants/errorMessages";
 import respond from "../../utils/respond";
 import request from "../../utils/request";
 import { IKCallback } from "../interfaces/IKCallback";

utils/request.ts

@@ -1,9 +1,12 @@
-import respond from "../utils/respond";
-import { RequestOptions } from "../utils/authorization";
-import { ImageKitOptions } from "../libs/interfaces/";
+import respond from "./respond";
+import { RequestOptions } from "./authorization";
+import { ImageKitOptions } from "../libs/interfaces";
 import { IKCallback } from "../libs/interfaces/IKCallback";
 import axios, { AxiosError, AxiosHeaders, AxiosRequestConfig, AxiosResponse } from "axios";
 
+// constant
+const UnknownError: string =  "Unknown error occured";
+
 export default function request<T, E extends Error>(
   requestOptions: RequestOptions,
   defaultOptions: ImageKitOptions,
@@ -27,13 +30,13 @@ export default function request<T, E extends Error>(
   if (typeof requestOptions.headers === "object") options.headers = requestOptions.headers;
 
   axios(options).then((response: AxiosResponse<T>) => {
-    if (typeof callback != "function") return;
+    if (typeof callback !== "function") return;
     const { data, status, headers } = response;
     const responseMetadata = {
       statusCode: status,
       headers: (headers as AxiosHeaders).toJSON()
     }
-    var result = data ? data : {} as T;
+    let result = data ? data : {} as T;
     // define status code and headers as non-enumerable properties on data
     Object.defineProperty(result, "$ResponseMetadata", {
       value: responseMetadata,
@@ -42,7 +45,7 @@ export default function request<T, E extends Error>(
     });
     respond(false, result, callback);
   }, (error: AxiosError) => {
-    if (typeof callback != "function") return;
+    if (typeof callback !== "function") return;
     if (error.response) {
       // The request was made and the server responded with a status code
       // that falls out of the range of 2xx
@@ -51,7 +54,7 @@ export default function request<T, E extends Error>(
         headers: (error.response.headers as AxiosHeaders).toJSON()
       }
 
-      var result = {} as Object;
+      let result = {} as Object;
       if (error.response.data && typeof error.response.data === "object") {
         result = error.response.data
       } else if (error.response.data && typeof error.response.data === "string") {
@@ -82,7 +85,7 @@ export default function request<T, E extends Error>(
       // `error.request` is an instance of XMLHttpRequest in the browser and an instance of
       // http.ClientRequest in node.js
     } else {
-      respond(true, new Error("Unknown error occured"), callback);
+      respond(true, new Error(UnknownError), callback);
     }
   })
 }

utils/respond.ts

@@ -1,7 +1,7 @@
 import { IKCallback } from "../libs/interfaces/IKCallback";
 
 export default function respond<D, E extends Error>(isError: boolean, response: any, callback?: IKCallback<D, E>) {
-  if (typeof callback == "function") {
+  if (typeof callback === "function") {
     if (isError) {
       callback(response, null);
     } else {