Why the bodyParser.json was used twice?
I am a beginner of Node.js , I am researching the sample code as below, I do not understandard why it using the [app.use(bodyParser.json());] twice, what is the purpose of #1 and #2? thanks
var express = require('express');
var http = require('http');
var path = require('path');
var fs = require('fs');
var mime = require('mime');
var bodyParser = require('body-parser');
var cookieParser = require('cookie-parser');
var cfenv = require('cfenv');
var vcapServices = require('vcap_services');
var appEnv = cfenv.getAppEnv();
var app = express();
app.use(cookieParser());
app.use(bodyParser.urlencoded( extended: true ));
app.use(bodyParser.json()); // #1
app.set('appName', 'watsonDemo');
app.set('port', process.env.PORT || 6003);
app.set('views', path.join(__dirname + '/HTML'));
app.engine('html', require('ejs').renderFile);
app.set('view engine', 'ejs');
app.use(express.static(__dirname + '/HTML'));
app.use(bodyParser.json()); // #2
app.use('/', require("./controller/restapi/router"));
node.js body-parser
add a comment |
I am a beginner of Node.js , I am researching the sample code as below, I do not understandard why it using the [app.use(bodyParser.json());] twice, what is the purpose of #1 and #2? thanks
var express = require('express');
var http = require('http');
var path = require('path');
var fs = require('fs');
var mime = require('mime');
var bodyParser = require('body-parser');
var cookieParser = require('cookie-parser');
var cfenv = require('cfenv');
var vcapServices = require('vcap_services');
var appEnv = cfenv.getAppEnv();
var app = express();
app.use(cookieParser());
app.use(bodyParser.urlencoded( extended: true ));
app.use(bodyParser.json()); // #1
app.set('appName', 'watsonDemo');
app.set('port', process.env.PORT || 6003);
app.set('views', path.join(__dirname + '/HTML'));
app.engine('html', require('ejs').renderFile);
app.set('view engine', 'ejs');
app.use(express.static(__dirname + '/HTML'));
app.use(bodyParser.json()); // #2
app.use('/', require("./controller/restapi/router"));
node.js body-parser
Probably a mistake. Using it once is okay.
– lomse
Nov 14 '18 at 15:51
add a comment |
I am a beginner of Node.js , I am researching the sample code as below, I do not understandard why it using the [app.use(bodyParser.json());] twice, what is the purpose of #1 and #2? thanks
var express = require('express');
var http = require('http');
var path = require('path');
var fs = require('fs');
var mime = require('mime');
var bodyParser = require('body-parser');
var cookieParser = require('cookie-parser');
var cfenv = require('cfenv');
var vcapServices = require('vcap_services');
var appEnv = cfenv.getAppEnv();
var app = express();
app.use(cookieParser());
app.use(bodyParser.urlencoded( extended: true ));
app.use(bodyParser.json()); // #1
app.set('appName', 'watsonDemo');
app.set('port', process.env.PORT || 6003);
app.set('views', path.join(__dirname + '/HTML'));
app.engine('html', require('ejs').renderFile);
app.set('view engine', 'ejs');
app.use(express.static(__dirname + '/HTML'));
app.use(bodyParser.json()); // #2
app.use('/', require("./controller/restapi/router"));
node.js body-parser
I am a beginner of Node.js , I am researching the sample code as below, I do not understandard why it using the [app.use(bodyParser.json());] twice, what is the purpose of #1 and #2? thanks
var express = require('express');
var http = require('http');
var path = require('path');
var fs = require('fs');
var mime = require('mime');
var bodyParser = require('body-parser');
var cookieParser = require('cookie-parser');
var cfenv = require('cfenv');
var vcapServices = require('vcap_services');
var appEnv = cfenv.getAppEnv();
var app = express();
app.use(cookieParser());
app.use(bodyParser.urlencoded( extended: true ));
app.use(bodyParser.json()); // #1
app.set('appName', 'watsonDemo');
app.set('port', process.env.PORT || 6003);
app.set('views', path.join(__dirname + '/HTML'));
app.engine('html', require('ejs').renderFile);
app.set('view engine', 'ejs');
app.use(express.static(__dirname + '/HTML'));
app.use(bodyParser.json()); // #2
app.use('/', require("./controller/restapi/router"));
node.js body-parser
node.js body-parser
asked Nov 14 '18 at 15:36
ocean5ocean5
62
62
Probably a mistake. Using it once is okay.
– lomse
Nov 14 '18 at 15:51
add a comment |
Probably a mistake. Using it once is okay.
– lomse
Nov 14 '18 at 15:51
Probably a mistake. Using it once is okay.
– lomse
Nov 14 '18 at 15:51
Probably a mistake. Using it once is okay.
– lomse
Nov 14 '18 at 15:51
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ifUsing("editor", function ()
StackExchange.using("externalEditor", function ()
StackExchange.using("snippets", function ()
StackExchange.snippets.init();
);
);
, "code-snippets");
StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "1"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);
else
createEditor();
);
function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);
);
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53303751%2fwhy-the-bodyparser-json-was-used-twice%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53303751%2fwhy-the-bodyparser-json-was-used-twice%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Probably a mistake. Using it once is okay.
– lomse
Nov 14 '18 at 15:51