1 00:00:06,770 --> 00:00:08,740 [Powered by Google Translate] Se konsa, pifò chak jou ou, ou pwobableman tape oswa 2 00:00:08,740 --> 00:00:10,760 omwen wè HTTP. 3 00:00:10,760 --> 00:00:12,850 An reyalite, si w ap gade oswa koute sa a sou la 4 00:00:12,850 --> 00:00:15,220 entènèt, w ap itilize HTTP kounye a. 5 00:00:15,220 --> 00:00:16,160 Men, sa ki sa li ye? 6 00:00:16,160 --> 00:00:18,620 Oke, li nan ki sa ou tape nan kòmansman yon URL, oswa nan 7 00:00:18,620 --> 00:00:19,400 omwen itilize. 8 00:00:19,400 --> 00:00:22,250 Jou sa yo, navigatè jis asime ke ou vle HTTP, 9 00:00:22,250 --> 00:00:24,190 menm si ou pa aktyèlman tape li. 10 00:00:24,190 --> 00:00:27,830 Plis teknikman menm si, HTTP se yon pwotokòl, yon lang nan 11 00:00:27,830 --> 00:00:30,690 kalite, ki navigatè entènèt ak serveurs entènèt pale, yon seri 12 00:00:30,690 --> 00:00:32,409 konvansyon, kote yo respekte, jis 13 00:00:32,409 --> 00:00:33,710 tankou nou moun genyen. 14 00:00:33,710 --> 00:00:36,090 Pou egzanp, nan peyi Etazini an, lè ou premye rankontre yon moun, ou 15 00:00:36,090 --> 00:00:38,440 tipikman kòmanse yon koneksyon pa pwolonje ou 16 00:00:38,440 --> 00:00:41,050 men, nan ki pwen, lòt moun nan reponn a li pa 17 00:00:41,050 --> 00:00:41,830 souke li. 18 00:00:41,830 --> 00:00:43,070 Oke, sa a, se yon pwotokòl. 19 00:00:43,070 --> 00:00:45,680 Nan kèk peyi oswa fanmi yo, ou kòmanse yon koneksyon pa 20 00:00:45,680 --> 00:00:47,060 bo yon moun sou yon souflèt la. 21 00:00:47,060 --> 00:00:48,670 Bon, ki yon lòt pwotokòl. 22 00:00:48,670 --> 00:00:52,160 Se konsa, HTTP se yon pwotokòl ki k ap pase nan enplike òdinatè 23 00:00:52,160 --> 00:00:53,160 olye pou yo moun. 24 00:00:53,160 --> 00:00:54,350 Ak isit la a kijan li fonksyone. 25 00:00:54,350 --> 00:00:57,390 Lè yon navigatè vle montre yon moun yon rezo paj, li inisye 26 00:00:57,390 --> 00:01:01,330 yon koneksyon nan yon sèvè sit entènèt pa voye yon demann HTTP, 27 00:01:01,330 --> 00:01:03,710 andedan nan yo ki se yon mesaj analogue nan tanpri 28 00:01:03,710 --> 00:01:05,080 voye m 'paj sa a sou entènèt. 29 00:01:05,080 --> 00:01:06,790 An reyalite, li nan yon bagay ki pi skre tankou, 30 00:01:06,790 --> 00:01:08,040 get/http/1.1. 31 00:01:10,200 --> 00:01:13,220 Men, lè sèvè a resevwa ki mande, li voye yon HTTP 32 00:01:13,220 --> 00:01:15,750 repons, andedan nan ki se paj wèb la. 33 00:01:15,750 --> 00:01:17,960 Kounye a ke paj wèb, pandan se tan, sa ki ekri nan yon lang 34 00:01:17,960 --> 00:01:21,560 rele HTML, oswa ipèrtèkst Lang markeup. 35 00:01:21,560 --> 00:01:24,050 Epi sa a, HTTP vin non pwòp li yo. 36 00:01:24,050 --> 00:01:27,840 HTTP se yon akwonim pou ipèrtèkst Transfè Pwotokòl, 37 00:01:27,840 --> 00:01:30,180 paske sa li a transfere nan sèvè navigatè se 38 00:01:30,180 --> 00:01:32,870 ipèrtèks, ipèrtèkst markeup lang. 39 00:01:32,870 --> 00:01:35,550 Nan yon sans, entènèt la se tankou yon restoran kote w ap an 40 00:01:35,550 --> 00:01:37,010 kliyan oswa kliyan an. 41 00:01:37,010 --> 00:01:39,370 Anpil tankou ou lòd manje nan yon restoran ki sòti nan yon gason oswa 42 00:01:39,370 --> 00:01:42,360 sèvez nan restoran ki Lè sa a, pote l 'bay tab ou, pou fè navigatè entènèt 43 00:01:42,360 --> 00:01:44,510 lòd dosye ki sòti nan yon sèvè sit entènèt ki Lè sa a, 44 00:01:44,510 --> 00:01:45,910 retounen ak menm bagay la. 45 00:01:45,910 --> 00:01:48,230 An reyalite, se pou rezon sa a trè ki navigatè yo souvan 46 00:01:48,230 --> 00:01:50,985 kliyan yo rele ak serveurs yo rele yo, serveurs byen. 47 00:01:50,985 --> 00:01:53,790 Relasyon ki se anpil menm bagay la. 48 00:01:53,790 --> 00:01:55,010 Fè sans? 49 00:01:55,010 --> 00:01:57,750 Tout dwa, byen kite a pran yon gade nan yon demann aktyèl HTTP 50 00:01:57,750 --> 00:01:58,760 ak repons. 51 00:01:58,760 --> 00:02:00,230 Premyèman, kite a louvri yon navigatè. 52 00:02:00,230 --> 00:02:02,320 Mwen rive yo dwe lè l sèvi avèk Chrome, men ou fè sa nan pifò nenpòt 53 00:02:02,320 --> 00:02:03,740 navigatè jou sa yo. 54 00:02:03,740 --> 00:02:06,790 Pwochen Ann chwazi View, Developer, zouti pou devlope, 55 00:02:06,790 --> 00:02:08,259 ki pral louvri yon panèl Developer nan la 56 00:02:08,259 --> 00:02:09,550 anba nan fenèt nou an. 57 00:02:09,550 --> 00:02:12,450 Li kite yo pwochen klike sou ki tab Rezo panèl la. 58 00:02:12,450 --> 00:02:14,750 Tan nan pwochen mwen chaje paj entènèt ki sòti nan yon sèvè, nou pral wè nan 59 00:02:14,750 --> 00:02:17,300 sa a tab tout nan trafik la HTTP ant 60 00:02:17,300 --> 00:02:19,150 Chrome ak sèvè a. 61 00:02:19,150 --> 00:02:19,490 OK. 62 00:02:19,490 --> 00:02:20,936 Se pou nou ale nan, di, Google. 63 00:02:20,936 --> 00:02:27,580 http://www.google.com/enter. 64 00:02:27,580 --> 00:02:28,990 OK, ki sa ki jis ki te pase? 65 00:02:28,990 --> 00:02:31,240 Oke premye, kite la woulo liv nan tèt la anpil nan tab la. 66 00:02:31,240 --> 00:02:34,270 Ranje a trè premye reprezante repons HTTP Google nan mwen 67 00:02:34,270 --> 00:02:35,670 HTTP demann. 68 00:02:35,670 --> 00:02:37,000 Oke, kite la klike sou ki ranje. 69 00:02:37,000 --> 00:02:39,460 Sou bò dwat la, nou wè koulye a yon preview nan HTML a ki te 70 00:02:39,460 --> 00:02:41,680 enkli nan ke repons yo, ansanm ak yon pakèt antye nan 71 00:02:41,680 --> 00:02:42,390 JavaScript. 72 00:02:42,390 --> 00:02:44,590 Men, plis sou sa yo yon lòt lè. 73 00:02:44,590 --> 00:02:46,810 Se pou nou kounye a klike sou tab la Tèt nan kite nan sa a 74 00:02:46,810 --> 00:02:50,030 Tab Preview, ak isit la a kote nou ka wè HTTP aktyèl la 75 00:02:50,030 --> 00:02:53,650 mande pou navigatè mwen an voye ak aktyèl repons lan HTTP 76 00:02:53,650 --> 00:02:54,900 ki Google retounen. 77 00:02:54,900 --> 00:02:57,450 Kòm pou repons sèvè a, se pou yo klike sou Sous View pwochen 78 00:02:57,450 --> 00:02:58,670 Repons Tèt. 79 00:02:58,670 --> 00:03:00,330 Men sa Google voye nan navigatè m 'yo. 80 00:03:00,330 --> 00:03:02,500 Liy nan premye se petèt pi enteresan an - 81 00:03:02,500 --> 00:03:06,790 HTTP/1.1 200 OK. 82 00:03:06,790 --> 00:03:09,060 Sa vle di tout se byen e li te paj dakèy la transfere 83 00:03:09,060 --> 00:03:10,580 avèk siksè. 84 00:03:10,580 --> 00:03:13,010 Chans yo ou pa janm te wè sa a 200 anvan, otreman 85 00:03:13,010 --> 00:03:17,520 li te ye tankou yon kòd estati HTTP, men ou te pwobableman wè 404, 86 00:03:17,520 --> 00:03:19,430 Ranpli pa jwenn, petèt kèk lòt moun. 87 00:03:19,430 --> 00:03:21,570 Oke, sa a se kote moun ki nimewo soti. 88 00:03:21,570 --> 00:03:22,770 Oke gen ou genyen li - 89 00:03:22,770 --> 00:03:24,020 HTTP.