Cov txheej txheem:
Video: GQL yog dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
GQL yog ib hom lus zoo li SQL rau retrieving cov chaw thiab cov yuam sij. Lub syntax rau GQL Cov lus nug zoo ib yam li SQL. Nplooj ntawv no yog ib qho kev siv rau kev siv GQL nrog Python NDB thiab DB cov neeg siv khoom qiv. Txawm li cas los xij, SQL kab-kem lookup yog ib qho nqi, whereas hauv GQL tus nqi vaj tse tuaj yeem yog daim ntawv teev npe.
Ib yam li ib tug yuav nug, Gql sawv cev rau dab tsi?
Graph Query Language
Qhov thib ob, vim li cas peb thiaj ua QL? Los xaus, GraphQL yog txhais tau tias yog siv rau cov neeg siv daim ntawv thov, qhov twg network bandwidth thiab latency yog qhov tseem ceeb. Nws muab cov neeg siv khoom, muaj peev xwm nug ib yam khoom daim duab (ib tug qauv hierarchical ntawm cov khoom muaj feem xyuam). Siv GraphQL , cov neeg siv khoom kuj tau xaiv cov teb uas yuav tsum tau suav nrog hauv cov lus teb.
Ib yam li ib tug yuav nug, dab tsi yog GraphQL?
GraphQL yog ib qho syntax uas piav qhia txog yuav ua li cas thov cov ntaub ntawv, thiab feem ntau yog siv los thauj cov ntaub ntawv los ntawm server mus rau tus neeg siv khoom. Nws cia tus neeg siv khoom qhia raws nraim dab tsi cov ntaub ntawv nws xav tau. Nws ua rau nws yooj yim dua los sau cov ntaub ntawv los ntawm ntau qhov chaw. Nws siv hom system los piav qhia cov ntaub ntawv.
Thaum twg kuv yuav tsum siv so hauv GraphQL?
Nov yog 3 qhov kev siv ntau ntawm vim li cas koj yuav tsum siv GraphQL dhau REST
- Txo qhov overfetching. Qhov no yog qhov xwm txheej tshaj plaws uas cov neeg tsim tawm mus rau GraphQL.
- Txo cov nqi hloov ntaub ntawv. Txo cov ntaub ntawv hloov pauv ntawm tus neeg siv khoom thiab server-sab yog qhov txiaj ntsig thib ob ntawm kev siv GraphQL.
- Txhim kho App Performance.
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