API を Firebase Realtime Database に移行して気付いたこと

Transcript

1. API Λ Firebase Realtime Database
   ʹҠߦͯ͠ؾ෇͍ͨ͜ͱ
   2017/08/28 syamaoka
   GCPUG Firebase Realtime Database /meetup/1
   

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2. ࣗݾ঺հ
   ໊લɿ ࢁԬ ਅ໵ (syamaoka)
   झຯɿ
   ɾ MMO RPG
   ɾ PC : Tales Weaver
   ɾ Mobile : Lineage 2 Revolution
   ɾ MoBA : VainGlory
   ୲౰ɿ
   ɾ iOS, όοΫΤϯυ (API, Batch)
   

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3. ୲౰தαʔϏεͰꙍ
   ֵአͭͼ͚Ρ䱛ᚆ
   • Realtime Database
   • Remote Config
   • Firebase Authentication
   • Analytics
   • App Indexing
   • Firebase Performance Monitoring
   

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4. ୲౰தαʔϏεͰꙍ
   ֵአͭͼ͚Ρ䱛ᚆ
   • Realtime Database <- ࠓ೔͸͜͜Λத৺ʹ࿩͠·͢ !
   • Remote Config
   • Firebase Authentication
   • Analytics
   • App Indexing
   • Firebase Performance Monitoring
   

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5. ΞδΣϯμ
   • API -> Firebase Realtime Database
   • ΞϓϦଆͷ࣮૷
   • ηΩϡϦςΟϧʔϧʹ͍ͭͯ
   

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6. Firebase ʹٻΊ͍ͯΔ͜ͱ
   • API ࡞੒޻਺ͷܰݮ
   • ύϑΥʔϚϯενϡʔχϯά͔Βͷ୤٫
   • ΦϑϥΠϯ࣌ͷσʔλͷѻ͍΍͢͞ʢॲཧͷ؆୯͞ʣ
   

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7. API -> Firebase
   Realtime Database
   

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8. Ұ൪ࠔͬͨʢࠓ΋ෆ҆ʣͷ͸ɺ
   ੔߹ੑ !
   

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9. ݁࿦
   

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10. ΞϓϦέʔγϣϯίʔυΛ৴͡ΔʢఘΊʣ
    Firebase ͸ RDB Ͱ͸ͳ͍ͨΊɺ֎෦Ωʔ੍໿͕ͳ͍ɻ
    ͦͷͨΊɺ݁߹͕ඞཁͳՕॴ͸ొ࿥͢ΔࡍʹίʔυͰ֬ೝɻ
    εΩʔϚϨε(Ұ؏ੑ͕ͳ͍)Ͱ΋ɺ݁߹͢΂͖͔൱͔Λ൑அ͠ɺ
    ࠷దͳઃܭΛ͍ͯ͘͠ͷ͕ॏཁɻ
    ! ΤϯδχΞͷ࿹ͷݟͤॴ !
    

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11. ιʔτͷಛ௃
    • ΩʔΛࢦఆͯ͠ঢॱͰऔಘ
    • ฦ٫͢Δσʔλͷॱ൪͸อূ͍ͯ͠ͳ͍
    

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12. ιʔτͷಛ௃
    • ΩʔΛࢦఆͯ͠ঢॱͰऔಘ
    • ฦ٫͢Δσʔλͷॱ൪͸อূ͍ͯ͠ͳ͍
    

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13. ฦ٫͢Δσʔλͷॱ൪͸อূ͍ͯ͠ͳ͍
    ྫ͑͹ created_at Ͱιʔτ͠ɺ
    ࠷৽σʔλΛ 10 ݅औಘͨ࣌͠ɺ
    ฦ٫͞ΕΔσʔλ͸࠷৽σʔλͷ 10 ͕݅ͩɺ
    ฦ٫͞ΕΔ JSON ͷฒͼॱ͸อূ͞Ε͍ͯͳ͍
    

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15. Q. ͭ·ΓΞϓϦଆ͸Ͳ͏͢Ε͹͍͍ʁ
    A. ฦ٫͞Εͨ஋Λιʔτ͠௚͢ɻ
    

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16. ߱ॱʹ͢Δʹ͸ʁ
    • created_at Λ - ͷ஋ʹͯ͠ɺ߱ॱʹͳΔ key Λੜ੒
    https://stackoverflow.com/questions/34156996/firebase-
    data-desc-sorting-in-android/42572025#42572025
    • શ݅औಘͯ͠ΞϓϦଆͰ߱ॱʹฒͼସ͑Δ
    • QueryLastTo Λ࢖ͬͯ࠷ޙͷσʔλ͔Βऔಘ͢Δ
    

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17. ϩδοΫॱʹ͢Δʹ͸ʁ
    ϩδοΫʹΑΔฒͼॱ͸ɺ
    Firebase Realtime Database ͚ͩͰ͸೉͍͠ɻ
    

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18. ιʔτ༻ͷσʔλΛ࡞੒
    {
    "articleOrders": {
    "articleId1": 1,
    "articleId2": 2
    }
    }
    

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19. ϝϦοτ
    • ࠷খݶͷࢀর
    • ΞϓϦͷมߋͳ͠ʹཪଆͰॱ൪Λมߋग़དྷΔ
    ※ articles ͷதʹ order Λ༻ҙͨ͠৔߹ɺarticles શͯΛಡ
    ΈࠐΉඞཁ͕͋ΓɺύϑΥʔϚϯε͕ѱ͍ ❌
    

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20. σϝϦοτ
    • ߋ৽ִ͕ؒ୹͘ग़དྷͳ͍
    • ̍࣌ؒຖʹߋ৽ͱ͔Ͱ͋Ε͹େৎ෉͕ͩɺ5෼ຖͱ͔ͩͱ
    ͖ͬͱݫ͍͠
    • ܭࢉର৅ͷσʔλྔʹݶք͕͋Δ
    

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21. Cloud Function ͱ࢖͍
    ෼͚Α͏ !
    

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22. Rule ʹ͍ͭͯ
    

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23. Rule ͸େମҎԼͷ̐ͭ
    • Read and Write
    • Type
    • Require
    • index
    

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24. ܕͷࢦఆํ๏
    {
    "article": {
    "title": {
    ".validate": "newData.isString()"
    },
    "visible": {
    ".validate": "newData.isBoolean()"
    }
    }
    }
    

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25. ඞਢύϥϝʔλͷࢦఆํ๏
    {
    "article": {
    ".validate": "newData.hasChildren(['title','visible'])"
    }
    }
    

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26. Index ͷࢦఆํ๏
    {
    "article": {
    ".indexOn": [
    "title"
    ]
    }
    }
    

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27. γϛϡϨʔλ͕͍͢͝ศར !
    

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28. Demo
    

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29. ͔͠͠ɺ͜ΕΛखೖྗͰ
    શ෦؅ཧ͢Δͷ͸େม !
    

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31. ⚠ 8/28 ࣌఺ β ver
    

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32. Demo
    

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33. ઃఆϑΝΠϧ
    https://gist.github.com/bpyamasinn/
    c1f62153f0bea8a499c111f4f30c8546
    

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34. Index ͷઃఆ͚ͩগ͠΍͔͍ͬ
    Index ͸ Path Ͱࢦఆ͠ͳͪ͘Ό͍͚ͳ͍ͨΊɺ
    Type ʹهࡌग़དྷͳ͍ͨΊɺδΣωϦΫεΛ࢖ͬͯఆٛͨ͠ࡍʹ
    ៉ྷʹॻ͚ͳ͍෦෼͕ग़ͯ͘Δ !
    

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35. Client Side Join
    

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36. σʔλྫ
    {
    "articles" : {
    "hogeId" : {
    "title" : "λΠτϧ",
    "category" : "categoryID_1"
    }
    },
    "categories" : {
    "categoryID_1" : {
    "name": "ήʔϜ"
    }
    }
    }
    

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37. ํ๏
    RxSwift ͷ zip Λ༻͍ͯϚʔδ͢Δ
    

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38. ݁߹ͷྲྀΕ
    1. articles ͱ categories Λฒྻʹऔಘ
    2. RxSwift ͷΦϖϨʔλ zip Λ༻͍ͯɺ྆ํͷσʔλΛऔಘ͢Δ
    3. ྆σʔλΛ݁߹͢Δ
    

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39. ΞϓϦଆͰͷιʔτ΍ߜΓࠐΈ
    ެࣜυΩϡϝϯτʹهࡌ͞Ε͍ͯΔ௨Γɺ
    ΫϥΠΞϯταΠυͰͷιʔτ΍ϑΟϧλϦϯά͸ਪ঑͞Εͯ
    ͍ͳ͍ ❌
    

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40. ΞϓϦଆͰॲཧग़དྷͳ͍΋ͷ͸ɺ
    όονͰσʔλΛ༻ҙ͢Δ !
    

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41. ࣍͸·ͨϦϦʔεޙʹൃද͠·͢ !
    

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