Iyini iWebSocket futhi isebenza kanjani

I-WebSocket iyiphrothokholi yokuxhumana eqondiswa kabili esekelwe ku-TCP emisa ukuxhumana phakathi kweklayenti neseva, evumela izinhlangothi zombili ukuthi zicele idatha komunye nomunye. 

Iphrothokholi yendlela eyodwa efana ne-HTTP ivumela kuphela iklayenti ukuthi licele idatha kuseva. 

Uxhumano lwe-WebSocket phakathi kweklayenti neseva lungahlala luvulekile inqobo nje uma abathintekayo befuna ukuthi lugcine uxhumano, okuvumela ukuxhumana okuqhubekayo.

I-WebSockets ingaba phezulu kuzaziso ze-dApp I-Web3 ngoba zivumela izaziso zesikhathi sangempela zezehlakalo ezibucayi ngokuqhubekayo ngokuphathelene nesicelo ngasinye. 

Nge-HTTP, ukuxhumana ngakunye kuqala lapho iklayenti lenza isicelo futhi inqamule uxhumano lapho isicelo saneliswa.

Yini ama-WebSockets?

I-WebSocket iyiphrothokholi yokuxhumana yezindlela ezimbili evumela izikhathi zokuxhumana ezisebenzisanayo phakathi kweklayenti neseva . Isekelwe ku-TCP futhi ivamise ukusetshenziselwa izinhlelo zokusebenza namasevisi adinga amakhono esaziso sesikhathi sangempela.  

Iyini i-WebSocket Server?

Iseva yeWebSocket wuhlelo lokusebenza olulalela embobeni ye-TCP, elandela umthetho olandelwayo othize. I-WebSocket iyiphrothokholi yokuxhumana yezindlela ezimbili phakathi kweklayenti neseva, evumela kokubili ukucela nokuthumela idatha komunye nomunye. 

Ngokuphambene, i-HTTP iyindlela eyodwa yokuxhumana yokuxhumana, lapho iklayenti lingathumela izicelo kuphela kuseva futhi iseva ingakwazi ukuthumela idatha kuphela ngokuphendula, ungalokothi iseva ebuhlotsheni be-HTTP icele kuklayenti.

Kuyini ukuxhuma kweWebSocket?

Uxhumano lweWebSocket ukuxhumana okuqhubekayo phakathi kweklayenti neseva, kuyilapho ukuxhumeka kwe-HTTP kungokwesikhathi esisodwa kuphela. Uxhumano luqala ngaso sonke isicelo iklayenti elisenza kuseva futhi luphetha ngempendulo yeseva. Uxhumano lweWebSocket lungabanjwa inqobo nje uma iklayenti namaseva befuna ukuthi luvuleke, okusho ukuthi idatha ingageleza kuleyo WebSocket inqobo nje uma amaqembu efuna, konke kusukela esicelweni sokuqala.

Iyiphi iphrothokholi esetshenziswa yiWebSocket?

I-WebSocket isebenzisa umthetho olandelwayo we-WS, osuselwe ku-Transmission Control Protocol (TCP) . Inethiwekhi egxile ekuxhumekeni, okusho ukuthi ukuxhumana kufanele kuqala kusungulwe phakathi kwabahlanganyeli ukuze kuhanjiswe idatha endaweni efanele. 

Kunalokho, i-Internet Protocol inquma ukuthi idatha ithunyelwa kuphi ngokusekelwe olwazini olungaphakathi kwalelo phakethe ledatha; akukho ukucushwa kwangaphambili okudingekayo ukuze uhambise iphakethe. 

Iyini i-WebSocket API?

Kunezindlela ezimbili zokuthi iseva ithumele idatha kuklayenti. Iklayenti lingacela idatha kuseva njalo, eyaziwa ngokuthi ukuvota , noma iseva ingathumela ngokuzenzakalelayo idatha kuklayenti, eyaziwa ngokuthi iseva push . 

I-WebSocket APIs ikhulisa ukuxhumana phakathi kweklayenti neseva ngokuhlala ivulekile ngemva kwesicelo sokuqala sokusebenzisa inqubo yokuphusha iseva, isusa ukucindezelwa kwengqalasizinda okudalwe amaklayenti ahlala evotela iseva ukuze athole izibuyekezo ezintsha.

Asebenza kanjani ama-WebSockets?

Ama-WebSockets ayindlela yokuxhumana yezindlela ezimbili, evumela izimpendulo eziningi kusuka kusicelo seseva eyodwa. Ama-WebSockets nawo asetshenziswa kakhulu ekuxhumaneni kweklayenti-neseva kuyilapho ama-webhook esetshenziswa kakhulu ekuxhumaneni kweseva. 

Umehluko phakathi kwama-websockets nama-webhooks?

Ngokungafani nama-WebSockets, ama-webhooks , ezisebenzisa i-HTTP, ziyindlela eyodwa kuphela: iseva iphendula izicelo kuphela uma isicelo senziwe, futhi isikhathi ngasinye lapho saneliswa, ukuxhumana kuyehliswa.

Isetshenziswa nini i-WebSockets nama-Webhooks

Ukuhwebelana phakathi kokusebenzisa i-WebSockets noma ama-webhooks kuvela eqinisweni lokuthi umklamo wengqalasizinda ungaphatha kangcono ukuxhumana okuningi okuvula ngesikhathi esisodwa kwe-WebSocket kunezicelo eziningi zokuxhumanisa i-webhook ezivela kumakhasimende.

Uma uhlelo lwakho lokusebenza lweseva lusebenza njengomsebenzi wamafu (AWS Lambda, Google Cloud Functions, njll.), sebenzisa ama-webhooks ngoba uhlelo lokusebenza ngeke lugcine uxhumano lweWebSocket luvuliwe. 

Esimeni lapho inani lezaziso ezithunyelwe liphansi, ama-webhooks nawo angaphezulu njengoba ukuxhumeka kuqaliswa kuphela ngaphansi kombandela wokuthi umcimbi wenzeka. 

Uma umcimbi ungavamile, kungcono ukusebenzisa ama-webhooks kunokugcina ukuxhumana okuningi kweWebSocket kuvuliwe phakathi kweklayenti neseva. 

Okokugcina, noma ngabe uzama ukuxhuma iseva nenye iseva noma iklayenti kanye neseva nakho kubalulekile; ama-webhooks angcono awangaphambili, ama-websockets awakamuva.

Isetshenziswa nini iphrothokholi yeWebSocket

Kwama-Web3 dApp amaningi kuyimpoqo ukuvuselela abasebenzisi babo ngesimo semisebenzi yabo ngesikhathi sangempela. Uma kungenjalo, bangase babe nolwazi lomsebenzisi olubi futhi bashiye uhlelo lwakho lokusebenza noma isevisi. 

Isetshenziswa nini iWebSocket phezu kwe-HTTP

I-WebSockets kufanele isetshenziswe ezicelweni ze-HTTP noma nini lapho ukubambezeleka kudingeka kube inani eliphansi kakhulu ngangokunokwenzeka. Ngokwenza kanjalo sithola ukuthi abasebenzisi bathola izaziso mayelana nemicimbi ngokushesha nje lapho yenzeka. I-HTTP ihamba kancane kakhulu ngoba iklayenti linomkhawulo wokuthi lingathola kangaki izibuyekezo ngokuthi lizithumela kaningi kangakanani izicelo.

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