works with Carrefour.Items api

package.json

@@ -9,12 +9,8 @@
 		"url": "https://git.xdrm.io/MTI/api-mixer.js"
 	},
 	"main": "dist/main.js",
-	"dependencies": {
-		"request": "^2.88.0"
-	},
 	"devDependencies": {
 		"@types/node": "^10.12.0",
-		"@types/request": "^2.47.1",
 		"typescript": "^3.1.3"
 	},
 	"scripts": {

src/api/interface.ts

@@ -1,28 +1,10 @@
 export default interface Client {
 
-
-	/** Processes an API call to the given resource and returns a Promise with the
-	 * error description OR the result data as JSON
+	/** Processes an API call to the given resource and returns a Promise resolving with the output object
+	 * or rejecting the Error
 	 *
-	 * @param method the HTTP METHOD to use
-	 * @param path The API path
-	 * @param params The API-specific options
+	 * @param query			represents the input data composing the request
 	 */
-	call(method: HTTP_METHOD, path: String, params?: Parameters) : Promise<object|Error>;
+	call(query: object|string) : Promise<object>;
 
-}
-
-
-// Defines HTTP methods subset
-export enum HTTP_METHOD {
-    GET,
-    POST,
-    PUT,
-    DELETE
-}
-
-export class Parameters{
-	get: object;
-	post: object;
-	constructor(){ this.get  = {}; this.post = {}; }
 }

src/api/items.ts

@@ -0,0 +1,79 @@
+import Client from "./interface";
+import Key from "./keys";
+import { request } from 'https';
+
+export default class CarrefourItems implements Client {
+
+	host: string;
+	uri: string;
+	token: string;
+	clients: any[];
+
+	static get key(){ return Key.get("carrefour"); }
+
+
+	constructor(){
+		this.host = "api.fr.carrefour.io";
+		this.uri = "/v1/openapi/items";
+
+		// check key
+		if( !CarrefourItems.key['app_id'] || !CarrefourItems.key['app_secret'] )
+			throw new Error("The 'carrefour' key must feature 2 fields: ['app_id', 'app_secret']");
+	}
+
+
+	call(query: object|string) : Promise<object>{
+
+		// check query
+		if( typeof query != 'string' )
+			return new Promise<object>((_,reject)=>{ reject('invalid query; expected string') })
+
+		let reqdata = JSON.stringify({
+			queries: [ { query: query,  field: 'barcodeDescription' } ]
+		})
+
+		let reqopt = {
+			hostname: this.host,
+			path:     this.uri,
+			port:     443,
+			method:   'POST',
+			headers: {
+				'Accept':              'application/json',
+				'content-type':        'application/json',
+				'content-length':      Buffer.byteLength(reqdata),
+				'x-ibm-client-id':     CarrefourItems.key['app_id'],
+				'x-ibm-client-secret': CarrefourItems.key['app_secret'],
+			}
+		};
+
+		return new Promise<object>( (resolve, reject) => {
+
+			let req = request(reqopt, (res) => {
+
+				let chunks = [];
+
+				res.on('data', (chunk) => chunks.push(chunk));
+
+				res.on('end', () => {
+					let raw = Buffer.concat(chunks)
+					try{
+						let json = JSON.parse(raw.toString());
+						resolve(json)
+					}catch(e){
+						reject(`invalid json response: ${e.message}`);
+					}
+
+				});
+
+			})
+
+			req.on('error', (err) => reject(err.message));
+			req.write(reqdata);
+			req.end();
+
+
+		});
+	}
+
+
+}

src/main.ts

@@ -8,7 +8,7 @@ const mixer: Mixer = new Mixer();
 
 
 // 1. build server
-const server = createServer(mixer.http_handler);
+const server = createServer(mixer.http_handler.bind(mixer));
 
 // 2. bind 404 error
 server.on('clientError', (err: Error, sock: Socket) => {

src/mixer.ts

@@ -2,15 +2,16 @@ import { IncomingMessage, ServerResponse, Server } from "http";
 import CarrefourItems from "./api/items";
 import { parse as parseURL, UrlWithParsedQuery } from "url";
 import { ParsedUrlQuery } from "querystring";
+import Client from "./api/interface";
 
 export default class Mixer {
 
 	static valid_urls = ["/", "/oauth"];
 
-	carrefour: CarrefourItems = new CarrefourItems();
+	chain: Client[] = [new CarrefourItems()];
 
 	constructor(){
-		console.log("Mixer Initialised");
+		console.log("+ mixer init");
 	}
 
 	http_handler(req: IncomingMessage, res: ServerResponse){
@@ -30,15 +31,17 @@ export default class Mixer {
 
 		// if query
 		if( urlObj.pathname == "/" ){
-			let err:Error = Mixer.query(req, res);
+			let err:Error = this.query(req, res);
 			if( err != null ){
 				res.writeHead(200, { 'Content-Type': 'application/json' })
 				res.end(JSON.stringify({reason: `query error: ${err.toString()}`}))
 			}
 
+			return;
+
 		// if oauth
 		} else {
-			let err:Error = Mixer.oauth(req, res);
+			let err:Error = this.oauth(req, res);
 			if( err != null ){
 				res.writeHead(200, { 'Content-Type': 'application/json' })
 				res.end(JSON.stringify({reason: `query error: ${err.toString()}`}))
@@ -49,16 +52,24 @@ export default class Mixer {
 	}
 
 
-	static query(req: IncomingMessage, res: ServerResponse) : Error{
+	query(req: IncomingMessage, res: ServerResponse) : Error{
 
 		let query: ParsedUrlQuery = parseURL(req.url,true).query
-		console.log('query is:', query['q'])
+
+		this.chain[0].call(query['q']).then( (obj:object) => {
+			console.log('query success')
+			res.writeHead(200, { 'Content-Type': 'application/json' })
+			res.end(JSON.stringify(obj))
+			return null;
+		}).catch( (err:Error) => {
+			console.log('query error', err)
+		})
 
 		return null;
 
 	}
 
-	static oauth(req: IncomingMessage, res: ServerResponse) : Error{
+	oauth(req: IncomingMessage, res: ServerResponse) : Error{
 		console.log(`oauth(${req},${res})`);
 		let query: ParsedUrlQuery = parseURL(req.url,true).query
 		console.log('query is:', query);

tsconfig.json

@@ -3,13 +3,16 @@
 		"baseUrl": ".",
 		"paths": { "*": ["types/*"] },
         "module": "commonjs",
-        "noImplicitAny": true,
+        // "noImplicitAny": true,
         "removeComments": true,
         "moduleResolution": "node",
         "target": "es6",
-        "outDir": "dist"
+        "outDir": "dist",
     },
     "include": [
         "src/**/*"
+    ],
+    "exclude": [
+        "node_modules/**/*"
     ]
 }