Autenticación de Google en React con Parse

inicio de sesión de google en react introducción en el último tutorial, construiste una función de inicio/cierre de sesión de usuario en tu aplicación utilizando la parse user parse user clase ahora aprenderás cómo usar google sign in para recuperar datos de usuario de google e iniciar sesión, registrarte o vincular usuarios existentes con ello también instalarás y configurarás la react google login react google login biblioteca para lograrlo el parse user linkwith parse user linkwith método es responsable de registrar e iniciar sesión a los usuarios utilizando cualquier método de autenticación de terceros, siempre que pases los parámetros correctos solicitados por cada proveedor diferente después de vincular los datos del usuario a un nuevo o existente parse user parse user , parse almacenará una sesión de usuario válida en tu dispositivo las futuras llamadas a métodos como current current recuperarán con éxito tus datos de usuario, al igual que con inicios de sesión regulares requisitos previos para completar este tutorial, necesitarás una aplicación react creada y conectada a back4app completa la guía anterior para que puedas tener una mejor comprensión de la clase parse user y el método parse user login https //www back4app com/docs/react/working with users/react user login si deseas probar/utilizar el diseño de pantalla proporcionado por esta guía, deberías configurar la ant design ant design biblioteca objetivo construir una función de inicio de sesión de usuario utilizando google sign in en parse para una aplicación react 1 instalando dependencias la forma más popular de habilitar el inicio de sesión de google en react es usando react google login react google login para manejarlo configúralo siguiendo la documentación oficial asegúrate de crear un oauth clientid clientid en tu página de credenciales de google, añadiendo tu dirección de desarrollo local a las urls autorizadas, que generalmente es http //localhost 3000 http //localhost 3000 2 usando el inicio de sesión de google con parse ahora vamos a crear un nuevo método dentro del userlogin userlogin componente que manejará la respuesta al llamar a un modal de autenticación de google sign in si el usuario inicia sesión con google, esta llamada recuperará los datos del usuario de google y necesitarás almacenar el id, idtoken idtoken , y el correo electrónico de google luego, la función intentará iniciar sesión en parse utilizando el parse user linkwith parse user linkwith método y estas credenciales ten en cuenta que si tu usuario ya se había registrado utilizando esta autenticación de google, linkwith linkwith lo iniciará sesión utilizando la cuenta existente javascript 1 const handlegoogleloginloginresponse = async function(response) { 2 // check if response has an error 3 if (response error !== undefined) { 4 console log(`error ${response error}`); 5 return false; 6 } else { 7 try { 8 // gather google user info 9 const usergoogleid = response googleid; 10 const usertokenid = response tokenid; 11 const useremail = response profileobj email; 12 // try to login on parse using linkwith and these credentials 13 // create a new parse user object 14 const usertologin = new parse user(); 15 // set username and email to match google email 16 usertologin set('username', useremail); 17 usertologin set('email', useremail); 18 try { 19 let loggedinuser = await usertologin 20 linkwith('google', { 21 authdata {id usergoogleid, id token usertokenid}, 22 }); 23 // login returns the corresponding parseuser object 24 alert( 25 `success! user ${loggedinuser get('username')} has successfully signed in!`, 26 ); 27 // update state variable holding current user 28 getcurrentuser(); 29 return true; 30 } catch (error) { 31 // error can be caused by wrong parameters or lack of internet connection 32 alert(`error! ${error message}`); 33 return false; 34 } 35 } catch (error) { 36 console log("error gathering google user info, please try again!") 37 return false; 38 } 39 } 40 }1 const handlegoogleloginloginresponse = async function(response any) promise\<boolean> { 2 // check if response has an error 3 if (response error !== undefined) { 4 console log(`error ${response error}`); 5 return false; 6 } else { 7 try { 8 // gather google user info 9 const usergoogleid string = response googleid; 10 const usertokenid string = response tokenid; 11 const useremail string = response profileobj email; 12 // try to login on parse using linkwith and these credentials 13 // create a new parse user object 14 const usertologin parse user = new parse user(); 15 // set username and email to match google email 16 usertologin set('username', useremail); 17 usertologin set('email', useremail); 18 try { 19 let loggedinuser parse user = await usertologin 20 linkwith('google', { 21 authdata {id usergoogleid, id token usertokenid}, 22 }); 23 // login returns the corresponding parseuser object 24 alert( 25 `success! user ${loggedinuser get('username')} has successfully signed in!`, 26 ); 27 // update state variable holding current user 28 getcurrentuser(); 29 return true; 30 } catch (error any) { 31 // error can be caused by wrong parameters or lack of internet connection 32 alert(`error! ${error message}`); 33 return false; 34 } 35 } catch (error any) { 36 console log("error gathering google user info, please try again!") 37 return false; 38 } 39 } 40 } después de eso, necesitas usar el react google login react google login googlelogin googlelogin componente para llamar al modal de inicio de sesión de google, añadiéndolo a tu código jsx puedes usar el estilo predeterminado de google o crear uno personalizado, que es el camino seguido por esta guía aquí está el código completo del userlogin userlogin componente, nota el react google login react google login botón y cómo está vinculado al método de respuesta del modal creado anteriormente javascript 1 import react, { usestate } from 'react'; 2 import parse from 'parse/dist/parse min js'; 3 import googlelogin from 'react google login'; 4 import ' /app css'; 5 import { button, divider, input } from 'antd'; 6&#x9; 7 export const userlogin = () => { 8 // state variables 9 const \[username, setusername] = usestate(''); 10 const \[password, setpassword] = usestate(''); 11 const \[currentuser, setcurrentuser] = usestate(null); 12&#x9; 13 const douserlogin = async function () { 14 // note that these values come from state variables that we've declared before 15 const usernamevalue = username; 16 const passwordvalue = password; 17 try { 18 const loggedinuser = await parse user login(usernamevalue, passwordvalue); 19 // login returns the corresponding parseuser object 20 alert( 21 `success! user ${loggedinuser get( 22 'username' 23 )} has successfully signed in!` 24 ); 25 // to verify that this is in fact the current user, `current` can be used 26 const currentuser = await parse user current(); 27 console log(loggedinuser === currentuser); 28 // clear input fields 29 setusername(''); 30 setpassword(''); 31 // update state variable holding current user 32 getcurrentuser(); 33 return true; 34 } catch (error) { 35 // error can be caused by wrong parameters or lack of internet connection 36 alert(`error! ${error message}`); 37 return false; 38 } 39 }; 40&#x9; 41 const douserlogout = async function () { 42 try { 43 await parse user logout(); 44 // to verify that current user is now empty, currentasync can be used 45 const currentuser = await parse user current(); 46 if (currentuser === null) { 47 alert('success! no user is logged in anymore!'); 48 } 49 // update state variable holding current user 50 getcurrentuser(); 51 return true; 52 } catch (error) { 53 alert(`error! ${error message}`); 54 return false; 55 } 56 }; 57&#x9; 58 // function that will return current user and also update current username 59 const getcurrentuser = async function () { 60 const currentuser = await parse user current(); 61 // update state variable holding current user 62 setcurrentuser(currentuser); 63 return currentuser; 64 }; 65&#x9; 66 const handlegoogleloginloginresponse = async function (response) { 67 // check if response has an error 68 if (response error !== undefined) { 69 console log(`error ${response error}`); 70 return false; 71 } else { 72 try { 73 // gather google user info 74 const usergoogleid = response googleid; 75 const usertokenid = response tokenid; 76 const useremail = response profileobj email; 77 // try to login on parse using linkwith and these credentials 78 // create a new parse user object 79 const usertologin = new parse user(); 80 // set username and email to match google email 81 usertologin set('username', useremail); 82 usertologin set('email', useremail); 83 try { 84 let loggedinuser = await usertologin linkwith('google', { 85 authdata { id usergoogleid, id token usertokenid }, 86 }); 87 // login returns the corresponding parseuser object 88 alert( 89 `success! user ${loggedinuser get( 90 'username' 91 )} has successfully signed in!` 92 ); 93 // update state variable holding current user 94 getcurrentuser(); 95 return true; 96 } catch (error) { 97 // error can be caused by wrong parameters or lack of internet connection 98 alert(`error! ${error message}`); 99 return false; 100 } 101 } catch (error) { 102 console log('error gathering google user info, please try again!'); 103 return false; 104 } 105 } 106 }; 107&#x9; 108 return ( 109 \<div> 110 \<div classname="header"> 111 \<img 112 classname="header logo" 113 alt="back4app logo" 114 src={ 115 'https //blog back4app com/wp content/uploads/2019/05/back4app white logo 500px png' 116 } 117 /> 118 \<p classname="header text bold">{'react on back4app'}\</p> 119 \<p classname="header text">{'user login'}\</p> 120 \</div> 121 {currentuser === null && ( 122 \<div classname="container"> 123 \<h2 classname="heading">{'user login'}\</h2> 124 \<divider /> 125 \<div classname="form wrapper"> 126 \<input 127 value={username} 128 onchange={(event) => setusername(event target value)} 129 placeholder="username" 130 size="large" 131 classname="form input" 132 /> 133 \<input 134 value={password} 135 onchange={(event) => setpassword(event target value)} 136 placeholder="password" 137 size="large" 138 type="password" 139 classname="form input" 140 /> 141 \</div> 142 \<div classname="form buttons"> 143 \<button 144 onclick={() => douserlogin()} 145 type="primary" 146 classname="form button" 147 color={'#208aec'} 148 size="large" 149 block 150 > 151 log in 152 \</button> 153 \</div> 154 \<divider /> 155 \<div classname="login social"> 156 \<div classname="login social item login social item facebook"> 157 \<img classname="login social item image" src={'https //findicons com/files/icons/2830/clean social icons/250/facebook png'} alt=""/> 158 \</div> 159 \<googlelogin 160 clientid="108490793456 0flm4qh8ek4cb4krt7e06980o4sjvado apps googleusercontent com" 161 render={renderprops => ( 162 \<div classname="login social item"> 163 \<img onclick={renderprops onclick} classname="login social item image" src={'data\ 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alt=""/> 164 \</div> 165 )} 166 buttontext="login" 167 onsuccess={handlegoogleloginloginresponse} 168 onfailure={handlegoogleloginloginresponse} 169 cookiepolicy={'single host origin'} 170 /> 171 \<div classname="login social item"> 172 \<img classname="login social item image" src={'data\ 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alt=""/> 173 \</div> 174 \</div> 175 \<p classname="form hint">don't have an account? \<a classname="form link" href="#">sign up\</a>\</p> 176 \</div> 177 )} 178 {currentuser !== null && ( 179 \<div classname="container"> 180 \<h2 classname="heading">{'user screen'}\</h2> 181 \<divider /> 182 \<h2 classname="heading">{`hello ${currentuser get('username')}!`}\</h2> 183 \<div classname="form buttons"> 184 \<button 185 onclick={() => douserlogout()} 186 type="primary" 187 classname="form button" 188 color={'#208aec'} 189 size="large" 190 block 191 > 192 log out 193 \</button> 194 \</div> 195 \</div> 196 )} 197 \</div> 198 ); 199 };1 import react, { usestate, fc, reactelement } from 'react'; 2 import ' /app css'; 3 import { button, divider, input } from 'antd'; 4 import googlelogin from 'react google login'; 5 const parse = require('parse/dist/parse min js'); 6&#x9; 7 export const userlogin fc<{}> = () reactelement => { 8 // state variables 9 const \[username, setusername] = usestate(''); 10 const \[password, setpassword] = usestate(''); 11 const \[currentuser, setcurrentuser] = usestate\<parse object | null>(null); 12&#x9; 13 const douserlogin = async function () promise\<boolean> { 14 // note that these values come from state variables that we've declared before 15 const usernamevalue string = username; 16 const passwordvalue string = password; 17 try { 18 const loggedinuser parse user = await parse user login(usernamevalue, passwordvalue); 19 // login returns the corresponding parseuser object 20 alert( 21 `success! user ${loggedinuser get('username')} has successfully signed in!`, 22 ); 23 // to verify that this is in fact the current user, `current` can be used 24 const currentuser parse user = await parse user current(); 25 console log(loggedinuser === currentuser); 26 // clear input fields 27 setusername(''); 28 setpassword(''); 29 // update state variable holding current user 30 getcurrentuser(); 31 return true; 32 } catch (error any) { 33 // error can be caused by wrong parameters or lack of internet connection 34 alert(`error! ${error message}`); 35 return false; 36 } 37 }; 38&#x9; 39 const douserlogout = async function () promise\<boolean> { 40 try { 41 await parse user logout(); 42 // to verify that current user is now empty, currentasync can be used 43 const currentuser parse user = await parse user current(); 44 if (currentuser === null) { 45 alert('success! no user is logged in anymore!'); 46 } 47 // update state variable holding current user 48 getcurrentuser(); 49 return true; 50 } catch (error any) { 51 alert(`error! ${error message}`); 52 return false; 53 } 54 }; 55&#x9; 56 // function that will return current user and also update current username 57 const getcurrentuser = async function () promise\<parse user | null> { 58 const currentuser (parse user | null) = await parse user current(); 59 // update state variable holding current user 60 setcurrentuser(currentuser); 61 return currentuser; 62 } 63&#x9; 64 const handlegoogleloginloginresponse = async function(response any) promise\<boolean> { 65 // check if response has an error 66 if (response error !== undefined) { 67 console log(`error ${response error}`); 68 return false; 69 } else { 70 try { 71 // gather google user info 72 const usergoogleid string = response googleid; 73 const usertokenid string = response tokenid; 74 const useremail string = response profileobj email; 75 // try to login on parse using linkwith and these credentials 76 // create a new parse user object 77 const usertologin parse user = new parse user(); 78 // set username and email to match google email 79 usertologin set('username', useremail); 80 usertologin set('email', useremail); 81 try { 82 let loggedinuser parse user = await usertologin 83 linkwith('google', { 84 authdata {id usergoogleid, id token usertokenid}, 85 }); 86 // login returns the corresponding parseuser object 87 alert( 88 `success! user ${loggedinuser get('username')} has successfully signed in!`, 89 ); 90 // update state variable holding current user 91 getcurrentuser(); 92 return true; 93 } catch (error any) { 94 // error can be caused by wrong parameters or lack of internet connection 95 alert(`error! ${error message}`); 96 return false; 97 } 98 } catch (error any) { 99 console log("error gathering google user info, please try again!") 100 return false; 101 } 102 } 103 } 104&#x9; 105 return ( 106 \<div> 107 \<div classname="header"> 108 \<img 109 classname="header logo" 110 alt="back4app logo" 111 src={ 112 'https //blog back4app com/wp content/uploads/2019/05/back4app white logo 500px png' 113 } 114 /> 115 \<p classname="header text bold">{'react on back4app'}\</p> 116 \<p classname="header text">{'user login'}\</p> 117 \</div> 118 {currentuser === null && ( 119 \<div classname="container"> 120 \<h2 classname="heading">{'user login'}\</h2> 121 \<divider /> 122 \<div classname="form wrapper"> 123 \<input 124 value={username} 125 onchange={(event) => setusername(event target value)} 126 placeholder="username" 127 size="large" 128 classname="form input" 129 /> 130 \<input 131 value={password} 132 onchange={(event) => setpassword(event target value)} 133 placeholder="password" 134 size="large" 135 type="password" 136 classname="form input" 137 /> 138 \</div> 139 \<div classname="form buttons"> 140 \<button 141 onclick={() => douserlogin()} 142 type="primary" 143 classname="form button" 144 color={'#208aec'} 145 size="large" 146 block 147 > 148 log in 149 \</button> 150 \</div> 151 \<divider /> 152 \<div classname="login social"> 153 \<div classname="login social item login social item facebook"> 154 \<img classname="login social item image" src={'https //findicons com/files/icons/2830/clean social icons/250/facebook png'} alt=""/> 155 \</div> 156 \<googlelogin 157 clientid="108490793456 0flm4qh8ek4cb4krt7e06980o4sjvado apps googleusercontent com" 158 render={renderprops => ( 159 \<div classname="login social item"> 160 \<img onclick={renderprops onclick} classname="login social item image" src={'data\ 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alt=""/> 161 \</div> 162 )} 163 buttontext="login" 164 onsuccess={handlegoogleloginloginresponse} 165 onfailure={handlegoogleloginloginresponse} 166 cookiepolicy={'single host origin'} 167 /> 168 \<div classname="login social item"> 169 \<img classname="login social item image" src={'data\ 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alt=""/> 170 \</div> 171 \</div> 172 \<p classname="form hint">don't have an account? \<a classname="form link" href="#">sign up\</a>\</p> 173 \</div> 174 )} 175 {currentuser !== null && ( 176 \<div classname="container"> 177 \<h2 classname="heading">{'user screen'}\</h2> 178 \<divider /> 179 \<h2 classname="heading">{`hello ${currentuser get('username')}!`}\</h2> 180 \<div classname="form buttons"> 181 \<button 182 onclick={() => douserlogout()} 183 type="primary" 184 classname="form button" 185 color={'#208aec'} 186 size="large" 187 block 188 > 189 log out 190 \</button> 191 \</div> 192 \</div> 193 )} 194 \</div> 195 ); 196 }; agrega estas clases a tu app css app css archivo si deseas renderizar completamente el diseño de este componente app css 1 @import ' antd/dist/antd css'; 2&#x9; 3 app { 4 text align center; 5 } 6&#x9; 7 html { 8 box sizing border box; 9 outline none; 10 overflow auto; 11 } 12&#x9; 13 , 14 before, 15 after { 16 margin 0; 17 padding 0; 18 box sizing inherit; 19 } 20&#x9; 21 h1, 22 h2, 23 h3, 24 h4, 25 h5, 26 h6 { 27 margin 0; 28 font weight bold; 29 } 30&#x9; 31 p { 32 margin 0; 33 } 34&#x9; 35 body { 36 margin 0; 37 background color #fff; 38 } 39&#x9; 40 container { 41 width 100%; 42 max width 900px; 43 margin auto; 44 padding 20px 0; 45 text align left; 46 } 47&#x9; 48 header { 49 align items center; 50 padding 25px 0; 51 background color #208aec; 52 } 53&#x9; 54 header logo { 55 height 55px; 56 margin bottom 20px; 57 object fit contain; 58 } 59&#x9; 60 header text bold { 61 margin bottom 3px; 62 color rgba(255, 255, 255, 0 9); 63 font size 16px; 64 font weight bold; 65 } 66&#x9; 67 header text { 68 color rgba(255, 255, 255, 0 9); 69 font size 15px; 70 } 71&#x9; 72 heading { 73 font size 22px; 74 } 75&#x9; 76 flex { 77 display flex; 78 } 79&#x9; 80 flex between { 81 display flex; 82 justify content space between; 83 } 84&#x9; 85 flex child { 86 flex 0 0 45%; 87 } 88&#x9; 89 heading button { 90 margin left 12px; 91 } 92&#x9; 93 list item { 94 padding bottom 15px; 95 margin bottom 15px; 96 border bottom 1px solid rgba(0, 0, 0, 0 06); 97 text align left; 98 } 99&#x9; 100 list item title { 101 color rgba(0, 0, 0, 0 87); 102 font size 17px; 103 } 104&#x9; 105 list item description { 106 color rgba(0, 0, 0, 0 5); 107 font size 15px; 108 } 109&#x9; 110 form input { 111 margin bottom 20px; 112 } 113&#x9; 114 login social { 115 display flex; 116 justify content center; 117 margin bottom 30px; 118 } 119&#x9; 120 login social item { 121 width 54px; 122 height 54px; 123 border radius 54px; 124 padding 12px; 125 margin 0 12px; 126 border 1px solid #e6e6e6; 127 box shadow 0 2px 4px #d6d6d6; 128 } 129&#x9; 130 login social item facebook { 131 padding 4px; 132 background color #3c5b9b; 133 } 134&#x9; 135 login social item image { 136 width 100%; 137 } 138&#x9; 139 form hint { 140 color rgba(0, 0, 0, 0 5); 141 font size 16px; 142 text align center; 143 } adelante, prueba tu nueva función si pudiste iniciar sesión en google y la llamada a linkwith linkwith fue exitosa, deberías ver un mensaje de éxito como este 3 verificando el inicio de sesión del usuario y la creación de sesión para asegurarte de que el inicio de sesión de google funcionó, puedes mirar tu panel de parse y ver tu nuevo usuario usuario (si tus datos de autenticación de google no pertenecían a otro usuario), que contiene los authdata authdata de google también puedes verificar que se creó una sesión válida en el panel, que contiene un puntero a ese usuario usuario objeto 4 vinculando un usuario existente a google sign in otro linkwith linkwith uso posible es vincular un usuario existente con otro proveedor de autenticación, en este caso, google agrega esta función que llama a linkwith linkwith de la misma manera que iniciar sesión en tu userlogin userlogin componente la única diferencia aquí es que en lugar de llamar al método desde un parse user parse user , lo usarás desde el objeto del usuario actualmente conectado javascript 1 const handlegoogleloginlinkresponse = async function(response) { 2 // check if response has an error 3 if (response error !== undefined) { 4 console log(`error ${response error}`); 5 return false; 6 } else { 7 try { 8 // gather google user info 9 const usergoogleid = response googleid; 10 const usertokenid = response tokenid; 11 // try to link current parse user using linkwith and these credentials 12 // get current user 13 const usertolink = await parse user current(); 14 try { 15 let loggedinuser = await usertolink 16 linkwith('google', { 17 authdata {id usergoogleid, id token usertokenid}, 18 }); 19 // login returns the corresponding parseuser object 20 alert( 21 `success! user ${loggedinuser get( 22 'username', 23 )} has successfully linked his google account!`, 24 ); 25 // update state variable holding current user 26 getcurrentuser(); 27 return true; 28 } catch (error) { 29 // error can be caused by wrong parameters or lack of internet connection 30 alert(`error! ${error message}`); 31 return false; 32 } 33 } catch (error) { 34 console log("error gathering google user info, please try again!") 35 return false; 36 } 37 } 38 }1 const handlegoogleloginlinkresponse = async function(response any) promise\<boolean> { 2 // check if response has an error 3 if (response error !== undefined) { 4 console log(`error ${response error}`); 5 return false; 6 } else { 7 try { 8 // gather google user info 9 const usergoogleid string = response googleid; 10 const usertokenid string = response tokenid; 11 // try to link current parse user using linkwith and these credentials 12 // get current user 13 const usertolink parse user = await parse user current(); 14 try { 15 let loggedinuser parse user = await usertolink 16 linkwith('google', { 17 authdata {id usergoogleid, id token usertokenid}, 18 }); 19 // login returns the corresponding parseuser object 20 alert( 21 `success! user ${loggedinuser get( 22 'username', 23 )} has successfully linked his google account!`, 24 ); 25 // update state variable holding current user 26 getcurrentuser(); 27 return true; 28 } catch (error any) { 29 // error can be caused by wrong parameters or lack of internet connection 30 alert(`error! ${error message}`); 31 return false; 32 } 33 } catch (error any) { 34 console log("error gathering google user info, please try again!") 35 return false; 36 } 37 } 38 } asigne esta función a otro react google login react google login componente en su pantalla de inicio, que solo se muestra cuando hay un usuario actual conectado en su aplicación pruebe su nueva función, notando que el parse user parse user objeto authdata authdata se actualizará con los nuevos datos del proveedor de autenticación verifique si el usuario se ha actualizado en el panel de control de su servidor parse conclusión al final de esta guía, aprendió cómo iniciar sesión, registrarse o vincular usuarios existentes de parse en react utilizando el inicio de sesión de google con react google login react google login en la próxima guía, le mostraremos cómo usar el inicio de sesión de apple