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Asked: November 28, 20242024-11-28T07:00:08+00:00 2024-11-28T07:00:08+00:00

Como transformar seu React APP em um PWA em poucos minutos

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Progressive Web Apps ou somente PWAs, nos dão novos recursos com características nativas para os sites, consumindo menos dados e sem a necessidade de instalação.

Os React Apps precisam de apenas 2 características para serem PWAs, um servicerWorker, que é um script que o navegador executa em segundo plano, separado da WebPage o que possibilita alguns recursos, como uso offline.
E também um arquivo na pasta publica, como nome do aplicativo, pagina inicial e ícones, sendo esse arquivo o manifest.json.

1 manifest.json

o manifest.json vai na pasta public.

A maioria das informações são auto explicativas, e voce pode gerar automaticamente em alguns sites como o App Manifest Generator.

Segue um exemplo

{     "short_name": "WebPage",     "name": "Minha WebPage",     "icons": [         {             "src": "favicon.ico",             "sizes": "64x64 32x32 24x24 16x16",             "type": "imagem/icone-x"         },         {             "src": "logoPequeno.png",             "type": "image/png",             "sizes": "192x192"         },         {             "src": "logoGrande.png",             "type": "image/png",             "sizes": "512x512"         }     ],     "start_url": ".",     "display": "standalone",     "theme_color": "#000000",     "background_color": "#ffffff" } 
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2 servicerWorker.js

Para ter uma base vá para Modelo de Service Worker.

Copie os arquivos service-worker.js e o serviceWorkerRegistration.js e cole na pasta src.

Então no topo seu index.js, importe o service worker resgistration, assim:

import * as serviceWorkerRegistration from './serviceWorkerRegistration'; 
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Após o import, adicione no final do seu index.js o seguinte código para optar por um aplicativo “offline-first”

serviceWorkerRegistration.register(); 
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E pronto, seu CRA agora é uma PWA.

Caso voce esteja começando um projeto novo, voce pode cria-lo ja com o template usando o comando npx create-react-app app-name --template cra-template-pwa, ou se voce for usar o typescript npx create-react-app app-name --template cra-template-pwa-typescript.

Para se aprofundar mais em PWAs

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