Ntawm hauv Heroku
Txheej txheem cej luam:
Heroku muab txiag thiab txhawb kev pab los ntawm cov huab los rau Apps Node.js thiab ntau lwm haiv lus thiab platforms. Hauv ntej, Heroku muaj Platform li qhov. Nws lawm ib feem favoured PaaS zov me nyuam vim nws muaj txiag yooj yim, zoo yug ntawm lub qes kim thiab cia lub app creators kub siab rau tej app txhim kho. Heroku muab suited kom nws yuav tsum tso cov neeg tuaj pab txhawb various. Heroku siv yog qhauj xws li Asics thiab Miley Cyrus thiab nws twb tau muab siv kom muaj kev raug txoj siv rau cov neeg muas zaub zoo li Salesforce. Heroku muab transparency tag rau lub creators app app xwm, kev pab cuam, downtime thiab uptime rau lawv thiab ntau lwm yaam ntsig txog lub.
Node.js yog dab tsi?
Tus Node.js, uas yog tau tsim los ntawm Ryan Dahl hauv 2009, yog ib tug neeg rau zaub mov ces platform nyob rau Google Chrome V8 JavaScript cav, los yog cov V8 cav. Nws yog ib qho qhib tau qhov twg los thiab tus ntoo khaub lig-platform khiav lub sij hawm muab rau cov tshua thiab neeg rau zaub mov phab ntawv. Node.js daim ntaub ntawv yog tsim muaj JavaScript thiab yuav muab khaws cia rau lub nruab operating xws li tus Microsoft Windows, OS X thiab Linux nyob rau hauv lub cheeb tsam Node.js runtime.
Node.js muaj peevxwm li nram no uas ua rau tsev ntawm daim ntaub ntawv web sob.
- Nplua nuj qiv ntawm JavaScript modules
Nyob rau ntawm readymade thiab reusable JavaScript modules thiaj li coding lub sijhawm; pab txoj kev productivity thiab pab cov standardization ntawm kev siv software.
- Asynchronous thiab cov kev tshwm sim uas tau tsav
Node.js qiv APIs no asynchronous lub ntsiab lus tom qab tus neeg rau zaub mov Node.js hu kom ib qhov API, tus neeg rau zaub mov tos tus API teb thiab hu API tom ntej kom ua li ntawd, nyob rau. Nyob hauv lub meantime, ceeb toom mechanism txog tus txheej xwm ntawm Node.js txais tau cov lus teb los ntawm cov hu ua APIs.
- Ceev tiav txog txoj
Vim tias Node.js no los ua rau Google Chrome V8 JavaScript cav, Yog ceev heev qhov chaws tso.
- Ib qho xov uas muab siab scalability
Strange li nws kuj zoo li, ib qho xov uas Node.js yog ntau npaum thiab tshaj qhov ntau threads siv tshuaj servers scalable. Ib qho xov yuav siv cov kev tshwm sim uas looping rau nws tam.
Heroku yog dab tsi?
Xav txog tej yam kev app uas yog tau ua tau nws tus kheej contained thiab kabmob hauv Internet thiab rau lub khw muag khoom noj app tsis. Tus creator ntawm lub txhob xav xav ntau txog qhov teeb meem txog kev them nyiaj yug app tom qab nws yog tsim muaj nyob hauv Internet. Piv txwv, tus creator tsis pub kev txhawj ntau thaum lub muab tso nyob rau hauv siab heev vim tsis muaj tsheb khiav ntsia hlau loj. Heroku platform tsis tas li rau apps meant yuav tsum hosted hauv Internet. Nws deploys thiab ib hom tsiaj apps rau hauv Internet ntawm huab hab npaaj yug afterwards. Heroku yog lub Platform-ua-ib qhov kev pab (PaaS) ❑ ❑ founded hauv 2007. Nrog lub Heroku interface, deploying apps hauv Internet yog yooj yim.
Heroku txhawb apps ua rau ntau hom lus uas nyob hauv nws cheeb tsam hauv internet runtime hu ua cov Cedar pawg. Yug yog muaj nyob rau hauv daim ntawv los ntawm ntau pab xws li teem dua zaus thiab lwm yam los yog xyuas hauv computer virtual downtime.
Heroku cia cov creators muaj apps siab rau txoj kev txhim kho app thiab nco txog app txhawb txog tej teeb meem xws li downtime, scaling nce los yog yuav nqis thiab teem dua lwm yam.
Vim li cas Heroku? – Pros thiab Cons
Tsov rog nyob rau hauv cov sau PaaS khaus raws li lwm cov chaw muab PaaS xws li yog Modulus, Microsoft Azure, Linode thiab Appfog puas tus jostling tais ib lub ncuav loj ntawm lucrative tom khw yuav. Tiam sis Heroku mas feem ntau favoured vim according mus reviewers, nws cov positives yuav mus outweigh nws cov negatives. Heroku hau tawm rau lwm tus thaum nws tuaj cuag liab me me thiab nruab nrab start-ups thiab qhauj zog nrog rau nqi thiab tsiv teeb meem. Lub ntsiab pros thiab cons txog Heroku yuav piav hauv qab.
Pros
- Kev txhawb cov txiag uas ua tau rau ntau hom lus xws li Java apps, Node.js, Scala, Clojure, Nab hab sej thiab PHP.
- Yooj yim txiag cov apps uas ua Heroku zoo tagnrho rau start-up developers. Txawm li cas los, Heroku lawm Attendance nrov muaj tej yaam num loj vim nws tau xaiv rau ntau cov chaw txug tej yaam National VIP thiab ntsib lub of NY zam lub limtiam.
- Muab Heroku 24 teev cov kev pab uas muaj raws li txoj cai kho tshiab heev.
- Ib qho yooj yim xws li cov chaw muab kev pab lwm-tus neeg xws li MongoDB thiab Redis.
- Luv nqi. Nws yog dawb ntawm qhov rooj lawm.
Cons
- Kev them nyiaj yug ntau ntau yog nyob rau hauv ib nqe ntxhab dhia.
- Vim nws yog tsim rau Ruby nyob ntsia, Node.js ntawv yuav fim rau tej kev kawm.
- Neeg kuj yuav tsis raug tswj xaiv operating systems thiab firewall.
Tus neeg mob siv Heroku?
Seem no piav li cas Heroku pab kev siv ntau zaum rau Salesforce thiab ua tau lag luam muaj teeb meem ntau.
Tus neeg mob siv:
Lub sab siv zaum nram qab no Sibhawm sibntxiv yuav muab los siv rau cov Salesforce.
- Nrhiav cov kua tov rau tagnrho loj ntawm cov ntaub ntawv ntau hom.
- Optimize dab zoo productivity.
- Muab intuitive thiab user-friendly UIs.
Siv rooj sib hais yuav siv:
Tus neeg mob sab nram qab no lawv coj – Heroku feem xyuam – los siv tus siv zaum saum toj no.
- Txawv lwm-tus neeg ntawv xws li Salesforce, D&B CreditCheck, Shooping.com thiab Google Analytics tau kev pab APIs.
- Ntau ntxiv rau kev pab cuam tau siv xws li Runscope thiab IronMQ.
- Luam tawm tsab logic uas nyob rau hauv Salesforce tsis hais cov ntaub ntawv thiab kev ua lag ua luam.
- Yuav kom daws tau qhov teeb meem ntawm kev sib tshuam neeg dhau ntau yam raws li SMS, tug, Twitter, Neeg rau zaub mov Instagram thiab lub suab, kev sib tshuam tau caw kaw lus nrog ntau yooj.
- User or lead information could be retrieved with a lot of ease.
How Heroku works?
ua ntej no, Heroku supports the deployment of a number of apps built on a number of languages such as node.js, Scala, Clojure, Python and PHP and Java.
When an app is created on Heroku, it deploys the app on Cedar Stack which is its runtime environment. The latest version of Cedar Stack is Celadon Cedar. After deployment, Heroku assigns a unique name, based on a natural theme to the app, Piv txwv, calm-mountains3209. That done, the primary purpose of taking the services of Heroku are fulfilled. The app is now available on the Internet for the public and it is the turn of the support services.
How do the support services work? Heroku has what can be called virtual computers or instances that provide the support services. The instances are known as dynos and each dyno offers a specific service. Piv txwv, a dyno can do scheduled downtime and uptime for an app. Then there is the Heroku Scheduler which can make apps active at a specified frequency.
Getting started
Ntu no, we will explore the steps how Node.js applications can be deployed on Heroku.
Here you need to create a FREE Heroku account and install Node.js locally. Then you need to download and install Heroku Command Line Interface (CLI), which was earlier known as Heroku Toolbelt.
Kauj ruam 1: Create FREE Heroku account.
Kauj ruam 2: Install Node.js locally.
Step3: Install Heroku CLI. It will help to run applications locally.
Once these steps are complete, you can create Node applications and deploy on Heroku.
Xaus
While Heroku is a much-favoured PaaS solution for many, it needs to be noted that it is not a fit-for-all solution. qhov tseeb, none of its competitors, qee yam ntawm nws lub npe muaj tau hais no muaj kev qhia ntawv tov. Piv txwv, txawm yog suited rau tej yaam num loj nplai Microsoft Azure, yog tus Linode zoo rau developers Linux leej twg xav kom them nyiaj yug lub zej zog los ntawm lub rooj sab laj. Tab sis yog Heroku pom zoo rau start-ups li, nws twb yuav tau muab siv rau large-scale yog ib qhov uas tau nthuav txoj. Tiam sis tseem, tus simplicity thiab puag sab pab saib xyuas seem Heroku nws nws muag point raws li qhov chaw sau PaaS ua moiré crowded. Tshua mus seb tus neeg zov me nyuam PaaS yeej yuav tuaj tawm ntawm lawv xav zaub ua rau muaj ntau.
