The way of truly serverless application

Firebase.yebisu #1

Transcript

1. The way of 

   truly serverless
   application
   Firebase.Yebisu #1
   

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2. ࣗݾ঺հ
   ࡾӜ ࿨໵ (ID: miup)
   • ࠓ೥৽ଔͰೖࣾ (ࠃ಺ࣄۀ։ൃ෦ॴଐ)
   • ݄̑ͷ഑ଐ͔Β Firebase Λ৮Γ࢝Ίͨ
   • iOS ΞϓϦ͸̐೥͘Β͍ॻ͍͍ͯΔ
   

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3. Truly Serverless?
   

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4. Truly Serverless
   • ج൫͸͢΂ͯ֎෦ BaaS, SaaS ʹґଘ
   • ॻ͘ͷ͸ΫϥΠΞϯτΞϓϦέʔγϣϯͱͦ
   ΕΒαʔϏεͱͷ࿈ܞͷΈ
   

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5. Firebase Ͱे෼Ͱ͸ʁ
   

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6. Firebase ͷ೉఺
   • DB ͷΫΤϦ͕ѹ౗తʹऑ͍
   • FireStore Ͱ΋ෳࡶͳΫΤϦ͸·͔͚ͩͳ͍
   

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7. ΫΤϦ͕ऑ͍ͱʁ
   • ΫϥΠΞϯταΠυδϣΠϯ͕ඞཁ
   • ඇಉظ͕ॏͳͬͯͭΒ͍
   • όάͷԹচ
   • ηϧͷߴ͞ܭࢉͱ͔͏·͍͔͘ͳ͍
   https://qiita.com/miuP/items/ce3a3888d5411d2f8e70
   

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8. Solution
   • Realm
   • ֎෦ݕࡧΤϯδϯΛ࢖͏
   

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9. Algolia Search
   • શจݕࡧΤϯδϯ
   • ೔ຊޠରԠ
   • FireStore ͷશจݕࡧͷͱ͜ΖͰνϣϩͬͱ৮
   ΕΒΕ͍ͯΔ

   https://firebase.google.com/docs/firestore/solutions/search

   

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10. ࿈ܞ
    • ॻ͖ࠐΈݖݶͷ API Key ΛΫϥΠΞϯτͰ࣋
    ͯͳ͍
    • όοΫΤϯυΞϓϦέʔγϣϯ͕લఏ
    

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11. Archtecture
    #BDLFOE

    "QQMJDBUJPO
    'JSFCBTF
    &YUFSOBM4FSWJDF
    .PCJMF"QQ
    : Read
    : Write
    

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12. Firebase ͚ͩͰͳΜͱ͔͍ͨ͠
    

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13. CloudFunctions
    • HTTP ΍ DB ΁ͷมߋΛϑοΫʹಈ࡞͢Δ
    Node.js ؀ڥ
    • ΋ͪΖΜ TypeScript Ͱ΋ॻ͚Δ
    • ֎෦ API Λୟ͚Δ
    • Push ௨஌ૹΕΔ
    

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14. Architecture
    'JSFCBTF

    

    

    &YUFSOBM

    4FSWJDF
    .PCJMF"QQ
    : Read
    : Write
    $' %#
    

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15. Write
    'JSFCBTF

    

    

    $' %#
    .PCJMF"QQ
    &YUFSOBM

    4FSWJDF
    callback
    Firebase Cloud Messaging

    Silent Push
    

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16. Read
    'JSFCBTF

    

    

    &YUFSOBM

    4FSWJDF
    .PCJMF"QQ
    %#
    Observe Realtime Value
    Get main Data
    

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17. ίʔυྫ
    

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18. Algent
    • [WIP]
    • Algolia ͷΫϥΠΞϯτͷ wrapper
    • Decodable ͳܕΛ Response Ͱࢦఆ
    • ˑˑˑˑˑ
    

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19. Write
    functions.database.ref(‘path/to/user/{userID}').onCreate(async event => {
    let userID = event.params!.userID
    let firUser = await
    admin.database()
    .ref(`path/to/user/${userID}`)
    .once(‘value').then(snap => snap.val())
    let userIndex = algolia.initIndex('user')
    let user = new User(userID, firUser)
    return userIndex.addObject(user) // send FCM for callback
    })
    ref: https://qiita.com/star__hoshi/items/6ee9d1413a34ca5849eb
    

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20. Request
    struct AlgoliaFeedRequest: AlgoliaRequestProtocol {
    typealias HitType = Algolia.Feed
    var indexName: String {
    return "feed"
    }
    var query: AlgentQuery {
    let query = AlgentQuery()
    return query
    }
    }
    

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21. Read
    // search from algolia using Algent
    // Result, Error>
    Algent.shared.search(request: AlgoliaFeedRequest())
    Firebase.Post.databaseRef
    .child(feed.objectID)
    .child(“likes/count")
    .observe(.value) { [weak self] snapshot in
    if snapshot.exists() {
    self?.likeCountString.value = "\(snapshot.value as? Int)"
    } else {
    self?.likeCountString.value = "0"
    }
    }
    

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22. Sample
    • SNS ͬΆ͍΍ͭ
    • Feed ͱ User ͸ Algolia ͔Βݕࡧ
    • ͍͍Ͷʂ΍౤ߘ਺ͳͲͷมಈ͢Δ஋ͷΈΛ
    RealtimeDB͔ΒObserve
    • Silent Push ͔Βߋ৽͸ະ࣮૷
    

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23. σϞ

    https://github.com/miuP/AlgoliaFirebaseSample
    

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24. ·ͱΊ
    • Truly Serverless
    • Firebase ͰͰ͖ͳ͍͜ͱ͸ແཧͤͣผͷࡦΛ
    ࿅Δ
    • ֎෦αʔϏεͱͷ࿈ܞ΋໰୊ͳ͍
    ϞόΠϧΤϯδχΞ͚ͩͰαʔϏε࡞Δͧʙʂ
    

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25. Q&A
    

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