{"id":92433,"date":"2020-08-27T07:42:01","date_gmt":"2020-08-27T05:42:01","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/viennanet-nabor-bibliotek-dlya-backenda"},"modified":"2020-08-27T07:42:01","modified_gmt":"2020-08-27T05:42:01","slug":"viennanet-nabor-bibliotek-dlya-backenda","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/administrirovanie\/viennanet-nabor-bibliotek-dlya-backenda","title":{"rendered":"ViennaNET: s\u00fabor kni\u017en\u00edc pre backend","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Ahojte v\u0161etci!<\/p>\n

<\/p>\n

Sme komunita .NET v\u00fdvoj\u00e1rov Raiffeisenbanky a chceme v\u00e1m prerozpr\u00e1va\u0165 o s\u00fabore infra\u0161trukt\u00farnych kni\u017en\u00edc na .NET Core pre r\u00fdchle vytv\u00e1ranie mikroslu\u017eieb s jednotn\u00fdm ekosyst\u00e9mom. Uvo\u013enili sme to do Open Source! <\/p>\n

<\/p>\n

\"ViennaNET:<\/a><\/noindex><\/p>\n

<\/a><\/noindex><\/p>\n

Trochu hist\u00f3rie<\/h3>\n

<\/p>\n

Niekedy sme mali ve\u013ek\u00fd monolitn\u00fd projekt, ktor\u00fd sa postupne menil na s\u00fabor mikroslu\u017eieb (o \u0161pecifik\u00e1ch tohto procesu si m\u00f4\u017eete pre\u010d\u00edta\u0165 v tomto \u010dl\u00e1nku<\/a><\/noindex>). Po\u010das tohto procesu sme sa stretli s probl\u00e9mom, \u017ee pri vytv\u00e1ran\u00ed nov\u00fdch mikroslu\u017eieb sme \u010dasto museli kop\u00edrova\u0165 r\u00f4zne infra\u0161trukt\u00farne rie\u0161enia \u2013 ako napr\u00edklad nastavenie logovania, pr\u00e1cu s datab\u00e1zou, WCF a podobne. Na tomto projekte pracoval jeden t\u00edm a v\u0161etci si u\u017e zvykli na ur\u010dit\u00e9 ust\u00e1len\u00e9 pr\u00edstupy k infra\u0161trukt\u00fare. Preto sme vy\u010dlenili spolo\u010dn\u00fd k\u00f3d do samostatn\u00e9ho repozit\u00e1ra, zostaven\u00e9 kni\u017enice sme zabalili do Nuget bal\u00edkov a umiestnili do n\u00e1\u0161ho intern\u00e9ho Nuget \u00falo\u017eiska.<\/p>\n

<\/p>\n

\u010cas plynul, projekt sa pomaly rozde\u013eoval, a objavila sa t\u00fa\u017eba vytv\u00e1ra\u0165 nov\u00e9 moduly klientskej \u010dasti pomocou modern\u00e9ho JavaScript frameworku a sp\u00fa\u0161\u0165a\u0165 ich v prehliada\u010di. Za\u010dali sme prech\u00e1dza\u0165 z WCF\/SOAP na REST\/HTTP, tak\u017ee sme potrebovali nov\u00e9 kni\u017enice pre r\u00fdchly \u0161tart slu\u017eieb na b\u00e1ze AspNet WebApi. Prv\u00e1 verzia na .Net Framework 4.5 bola vyvinut\u00e1 na\u0161\u00edm architektom takmer vo vo\u013enom \u010dase, ale u\u017e z krabice umo\u017e\u0148ovala spusti\u0165 slu\u017ebu s trojicou riadkov v Program.cs, ktor\u00e1 obsahovala autoriz\u00e1ciu (NTLM), logovanie, Swagger, IoC\/DI na b\u00e1ze Castle Windsor, nastaven\u00e9 HTTP klienty, ktor\u00e9 preposielali r\u00f4zne hlavi\u010dky pre zabezpe\u010denie celoplo\u0161n\u00e9ho logovania v celom projekte. A v\u0161etko to bolo mo\u017en\u00e9 dodato\u010dne nakonfigurova\u0165 priamo v konfigura\u010dnom s\u00fabore slu\u017eby.<\/p>\n

<\/p>\n

Av\u0161ak nie v\u0161etko bolo bez komplik\u00e1ci\u00ed: t\u00e1to kni\u017enica sa uk\u00e1zala ako mimoriadne nepru\u017en\u00e1 z h\u013eadiska nasadzovania nov\u00fdch modulov. Napr\u00edklad, ak bolo potrebn\u00e9 prida\u0165 nejak\u00e9 \u0161peci\u00e1lne middleware, bolo potrebn\u00e9 vytvori\u0165 nov\u00fd bal\u00edk a dedi\u0165 z z\u00e1kladnej triedy, ktor\u00e1 sp\u00fa\u0161\u0165ala slu\u017ebu, \u010do bolo mimoriadne nepr\u00edjemn\u00e9. Na\u0161\u0165astie, tak\u00fdchto pr\u00edpadov nebolo ve\u013emi ve\u013ea.<\/p>\n

<\/p>\n

\u00c9ra Dockeru a Kubernetes<\/h3>\n

<\/p>\n

Pri\u0161iel \u010das, ke\u010f aj k n\u00e1m dorazila vlna s Dockerom a Kubernetesom, za ktorou sme pozorne sledovali: bol to toti\u017e skvel\u00fd pr\u00edle\u017eitos\u0165 posun\u00fa\u0165 technol\u00f3gie \u010falej na .Net Core. To znamen\u00e1, \u017ee budeme potrebova\u0165 nov\u00fa infra\u0161trukt\u00faru na spustenie slu\u017eieb: \u010das\u0165 kni\u017en\u00edc pre\u0161la z .Net Frameworku na .Net Standard a .Net Core prakticky bez zmien, \u010das\u0165 s drobn\u00fdmi vylep\u0161eniami. No najviac sme chceli prepracova\u0165 funk\u010dnos\u0165 spojen\u00fa so sp\u00fa\u0161\u0165an\u00edm slu\u017eieb na AspNet Core.<\/p>\n

<\/p>\n

Najprv sme zva\u017eovali koncept, ktor\u00fd by odstr\u00e1nil hlavn\u00fa nev\u00fdhodu predch\u00e1dzaj\u00facej verzie: absenciu flexibility. Preto sme sa rozhodli urobi\u0165 cel\u00fa syst\u00e9m kni\u017en\u00edc \u010do najviac nez\u00e1visl\u00fdm a modul\u00e1rnym a zostavova\u0165 potrebn\u00e9 funk\u010dn\u00e9 slu\u017eby ako stavebnicu.<\/p>\n

<\/p>\n

Hlavn\u00fdm cie\u013eom je vytvori\u0165 unifikovan\u00fd pr\u00edstup, ktor\u00fd opisuje, ako interagova\u0165 s datab\u00e1zami, z\u00f3nami a in\u00fdmi slu\u017ebami. Sna\u017eili sme sa, aby integr\u00e1cie boli r\u00fdchle a bezbolestn\u00e9, tak\u017ee sa v\u00fdvoj\u00e1ri mohli s\u00fastredi\u0165 na p\u00edsanie biznis logiky, a nie infra\u0161trukt\u00fary \u2013 t\u00e1 je u\u017e pripraven\u00e1. Spolo\u010dn\u00fd repozit\u00e1r pom\u00e1ha zlep\u0161i\u0165 sk\u00fasenos\u0165 spolupr\u00e1ce v r\u00e1mci t\u00edmov: ke\u010f sa pou\u017e\u00edvaj\u00fa ve\u013emi podobn\u00e9 vn\u00fatorn\u00e9 infra\u0161trukt\u00fary, je jednoduch\u0161ie zapoji\u0165 sa do v\u00fdvojov\u00e9ho procesu in\u00e9ho t\u00edmu a zdie\u013ea\u0165 odborn\u00e9 znalosti.<\/p>\n

<\/p>\n

A na\u010do n\u00e1m Open Source?<\/h3>\n

<\/p>\n

Chceme uk\u00e1za\u0165 zrelos\u0165 na\u0161ich odborn\u00fdch znalost\u00ed a z\u00edska\u0165 kvalitn\u00fa sp\u00e4tn\u00fa v\u00e4zbu: \u010dlovek, ktor\u00fd je mimo banky, m\u00f4\u017ee prinies\u0165 nie\u010do nov\u00e9. Taktie\u017e n\u00e1s zauj\u00edma v\u00fdvoj prax\u00ed pr\u00e1ce s mikroservismi a DDD na .NET v priemysle, mo\u017eno niekto bude chcie\u0165 vzia\u0165 ur\u010dit\u00e9 \u010dasti frameworku so sebou. <\/p>\n

<\/p>\n

Vlastne, ViennaNET<\/h3>\n

<\/p>\n

Teraz sa po\u010fme pozrie\u0165 na v\u0161etko podrobnej\u0161ie. Cel\u00fd zdrojov\u00fd k\u00f3d sme umiestnili sem<\/a><\/noindex>. <\/p>\n

<\/p>\n

ViennaNET.WebApi.*<\/h4>\n

<\/p>\n

Tento s\u00fabor kni\u017en\u00edc pozost\u00e1va z \"korena\" ViennaNET.WebApi, ktor\u00fd obsahuje triedu-builder pre slu\u017ebu CompanyHostBuilder, a zo s\u00faboru konfigur\u00e1torov ViennaNET.WebApi.Configurators.*, ka\u017ed\u00fd z nich umo\u017e\u0148uje prida\u0165 a nakonfigurova\u0165 ur\u010dit\u00fa funk\u010dnos\u0165 do vytvorenej slu\u017eby. Medzi konfigur\u00e1tormi n\u00e1jdete pripojenie logovania, diagnostiky, typ autentifik\u00e1cie a autoriz\u00e1cie, swagger a pod.<\/p>\n

<\/p>\n

ViennaNET.WebApi.Runners.* obsahuje predkonfigurovan\u00e9 stavite\u013ea slu\u017eieb. Tieto bal\u00edky umo\u017e\u0148uj\u00fa nezapam\u00e4t\u00e1va\u0165 si zaka\u017ed\u00fdm, ke\u010f vytv\u00e1rate nov\u00fa slu\u017ebu, ak\u00e9 konfigur\u00e1tory je potrebn\u00e9 pripoji\u0165. T\u00fdmto sp\u00f4sobom nijako neobmedzuj\u00fa funk\u010dnos\u0165 stavite\u013ea slu\u017eieb.<\/p>\n

<\/p>\n

ViennaNET.Mediator.*<\/h4>\n

<\/p>\n

Kni\u017enice, ktor\u00e9 umo\u017e\u0148uj\u00fa vytvori\u0165 intern\u00fa zbernicu pre pr\u00edkazy a dotazy v r\u00e1mci slu\u017eby. Tak\u00fdto pr\u00edstup umo\u017e\u0148uje zn\u00ed\u017ei\u0165 po\u010det DI-injekci\u00ed na jednu, napr\u00edklad v kontroler\u00e1ch. T\u00fdmto sp\u00f4sobom je mo\u017en\u00e9 prid\u00e1va\u0165 r\u00f4zne dekor\u00e1tory k dotazom, \u010do unifikuje ich spracovanie a zni\u017euje mno\u017estvo k\u00f3du. <\/p>\n

<\/p>\n

ViennaNET.Validation<\/h4>\n

<\/p>\n

Kolekcia, ktor\u00e1 obsahuje s\u00fabor tried na vytvorenie valida\u010dn\u00fdch pravidiel a ich sekvenci\u00ed. Ve\u013emi praktick\u00e1 na implement\u00e1ciu dom\u00e9novej valid\u00e1cie, preto\u017ee umo\u017e\u0148uje pop\u00edsa\u0165 ka\u017ed\u00fa obchodn\u00fa podmienku ako jednoduch\u00e9 a samostatn\u00e9 pravidlo. <\/p>\n

<\/p>\n

ViennaNET.Redis<\/h4>\n

<\/p>\n

Kni\u017enica s obalmi pre jednoduch\u00fa pr\u00e1cu s Redis ako in-memory cache.<\/p>\n

<\/p>\n

ViennaNET.Specifications<\/h4>\n

<\/p>\n

Kolekcia, ktor\u00e1 obsahuje triedy implementuj\u00face vzor \u00ab\u0160pecifik\u00e1cia\u00bb.<\/p>\n

<\/p>\n

To nie je v\u0161etko, \u010do m\u00e1me v na\u0161om s\u00fabore. Zvy\u0161ok si m\u00f4\u017eete pozrie\u0165 v repozit\u00e1ri na GitHub<\/a><\/noindex>. \u010coskoro pl\u00e1nujeme spr\u00edstupni\u0165 na\u0161e kni\u017enice pre pr\u00e1cu s datab\u00e1zami ako OpenSource.<\/p>\n

<\/p>\n

\u010eakujeme za va\u0161u pozornos\u0165, te\u0161\u00edme sa na va\u0161e koment\u00e1re a pull requesty.<\/p>\n

Zdroj: habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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