Firebase(Realtime Database)について

Transcript

1. 'JSFCBTF 3FBMUJNF
   %BUBCBTF ʹ͍ͭͯ 
   ɹ໺ాকଠ
2. 'JSFCBTFͱ͸ w N#BB4 .PCJMF
   #BDLFOE
   BT
   B
   4FSWJDF
   w ೥ʹ(PPHMF͕ങऩ͠ɺ($1ʹ౷߹͞Εͨ
   w ΞϓϦέʔγϣϯΛߏங͢Δࡍʹඞཁͳαʔόʔଆͷଟ͘ ͷػೳΛΫϥ΢υαʔϏεͱͯ͠ఏڙͯ͘͠ΕΔ
3. 'JSFCBTFͰఏڙ͞Ε͍ͯΔػೳ w ϦΞϧλΠϜσʔλϕʔε
   w ೝূ
   w ϗεςΟϯά
   w Ϋϥ΢υϝοηʔδϯάʢ1VTI௨஌ʣ
   w "OBMZUJDTʢΞϓϦͷ࢖༻ঢ়گͳͲͷղੳʣ
   w ετϨʔδɹɹɹͳͲ
4. ϦΞϧλΠϜσʔλϕʔεͱ͸ w ֤ΫϥΠΞϯτ͸Ϋϥ΢υ্ͷ
   %# /P42- ͷϩʔΧϧίϐʔ Λ࣋ͪɺ͜ͷϩʔΧϧίϐʔʹରͯ͠ಡΈॻ͖Λߦ͏ɻϩʔΧ ϧσʔλͷߋ৽͸ϦΞϧλΠϜͰΫϥ΢υσʔλϕʔεͱಉظ ͕ߦΘΕΔɻ
   w ϩʔΧϧίϐʔΛ͍࣋ͬͯΔͷͰɺΦϑϥΠϯ࣌΋σʔλͷࢀ র͕Ͱ͖ɺΦϯϥΠϯʹͳͬͨ࣌఺Ͱಉظ͕ߦΘΕΔɻ
5. ແྉൣғ w ϦΞϧλΠϜσʔλϕʔε
   w ಉ࣌઀ଓɺ༰ྔ(#ɺ௨৴ྉ(݄
   w ϓϥϯͷ੍ݶΛ௒͑ͨ৔߹ɺΞϓϦͷిݯ͕ΦϑʹͳΔ Β͍͠ʢউखʹ༗ྉϓϥϯʹͳΒͳ͍ʣ
6. 8FCΞϓϦͰ࢖ͬͯΈΔ  (PPHMFΞΧ΢ϯτͰϩάΠϯ
    ৽نϓϩδΣΫτ࡞੒
    ʮ΢ΣϒΞϓϦʹ'JSFCBTFΛ௥ՃʯͰग़ͯ͘ΔλάΛຒ ΊࠐΉ
    ίϚϯυϥΠϯ pSFCBTFUPPMT ͔ΒϗεςΟϯάˠσϓ ϩΠ
7. σʔλͷಡΈࠐΈ w 'JSFCBTFEBUBCBTF3FGFSFODFͷΠϯελϯεΛੜ੒
   // Get a reference to the database service this.database = firebase.database(); w ϦιʔεͷύεΛࢦఆ
   this.messagesRef = this.database.ref(‘messages'); w ΠϯελϯεʹΠϕϯτϦεφʔΛ௥Ճ
   this.messagesRef.on('child_added', setMessage); //child_added͸ࢦఆͨ͠ύεʹ৽͍͠σʔλ͕௥Ճ͞Εͨ৔߹ʹ࣮ߦ͞ΕΔ
8. σʔλͷॻ͖ࠐΈ w ಉ͘͡'JSFCBTFʹର͢ΔϦϑΝϨϯεΠϯελϯεΛੜ੒
   w TFU Ͱطଘͷσʔλͷஔ׵Λߦ͏
   function writeUserData(userId, name, email, imageUrl) { firebase.database().ref('users/' + userId).set({ username: name, email: email, profile_picture : imageUrl }); } w QVTI Λ࢖༻͢Δͱɺॻ͖ࠐΈ࣌ʹҰҙͷ*%͕ੜ੒͞Εɺڝ߹Λ൐Θͣʹෳ਺ͷΫϥΠ Ξϯτ͕ॻ͖ࠐΈΛߦ͏͜ͱ͕Ͱ͖Δ
   this.messagesRef.push({ name: currentUser.displayName, text: this.messageInput.value }).then(function() { }).catch(function(error) { console.error('Error writing new message to Firebase Database', error); });
9. ·ͱΊ w ͔ͳΓ؆୯