Sequence Diagrams

Auth

Create Account

sequenceDiagram
  actor User
  participant AccountServer
  participant Database
  User->>AccountServer: createAccount(username, email, password)
  activate AccountServer
  activate Database
  alt success
    AccountServer->>Database: Credentials
    Database-->>AccountServer: Success
    AccountServer-->>User: <200, "Success">
  else username/email exists
    Database-->>AccountServer: <1062, ER_DUP_ENTRY>
    deactivate Database
    AccountServer-->>User: <409, "Conflict">
    deactivate AccountServer
  end

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Login

sequenceDiagram
  actor User
  participant AuthServer
  participant Database
  User->>AuthServer: login(username, password)
  activate AuthServer
  AuthServer->>Database: Credentials
  activate Database
  alt success
    Database-->>AuthServer: <200, userData>
    AuthServer->>AuthServer: Issue JWT
    AuthServer-->>User: <200, JWT>
  else no match
    Database-->>AuthServer: no match
    deactivate Database
    AuthServer-->>User: <401, "Unauthorized">
    deactivate AuthServer
  end

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Wikidata

Browse

sequenceDiagram
  actor User
  participant WikidataClient
  participant Wikidata API
  User->>WikidataClient: browse(searchText)
  activate WikidataClient
  WikidataClient->>Wikidata API: searchText
  activate Wikidata API
  alt success
    Wikidata API-->>WikidataClient: <200, matchList[{itemID, itemName, itemCategory}]>
    WikidataClient-->>User: <200, matchList[{itemID, itemName, itemCategory}]>
  else error
    Wikidata API-->>WikidataClient: <ERROR_CODE, ERROR_MESSAGE>
    deactivate Wikidata API
    WikidataClient-->>User: <ERROR_CODE, ERROR_MESSAGE>
    deactivate WikidataClient
  end 

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View Architect Page

sequenceDiagram
  actor User
  participant WikidataClient
  participant Wikidata API
  User->>WikidataClient: getArchitectInfo(itemID)
  activate WikidataClient
  WikidataClient->Wikidata API: getArchitectInfo(itemID)
  activate Wikidata API
  alt success
    Wikidata API-->>WikidataClient: <200, {{architectName, architectDescription, architectProfileImageURL},<br/>buildingList[{itemID, buildingName, buildingImageURL, buildingStyleID, buildingStyleName, buildingStyleImageURL, buildingCoordinates}]}>
    WikidataClient-->>User: <200, {{architectName, architectDescription, architectProfileImageURL},<br/>buildingList[{itemID, buildingName, buildingImageURL, buildingStyleID, buildingStyleName, buildingStyleImageURL, buildingCoordinates}]}>
  else error
    Wikidata API-->>WikidataClient: <ERROR_CODE, ERROR_MESSAGE>
    deactivate Wikidata API
    WikidataClient-->>User: <ERROR_CODE, ERROR_MESSAGE>
    deactivate WikidataClient
  end 

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View Style Page

sequenceDiagram
  actor User
  participant WikidataClient
  participant Wikidata API
  User->>WikidataClient: getStyleInfo(itemID)
  activate WikidataClient
  WikidataClient->Wikidata API: getStyleInfo(itemID)
  activate Wikidata API
  alt success
    Wikidata API-->>WikidataClient: <200, {{styleName, styleDescription},<br/>relatedStyles[{itemId, styleName, styleImageURL}],<br/>architects[{itemID, architectName, architectProfileImageURL}],<br/>buildingList[{itemID, buildingName, buildingImageURL, buildingCoordinates}]}>
    WikidataClient-->>User: <200, {{styleName, styleDescription},<br/>relatedStyles[{itemId, styleName, styleImageURL}],<br/>architects[{itemID, architectName, architectProfileImageURL}],<br/>buildingList[{itemID, buildingName, buildingImageURL, buildingCoordinates}]}>
  else error
    Wikidata API-->>WikidataClient: <ERROR_CODE, ERROR_MESSAGE>
    deactivate Wikidata API
    WikidataClient-->>User: <ERROR_CODE, ERROR_MESSAGE>
    deactivate WikidataClient
  end 

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View Building Page

sequenceDiagram
  actor User
  participant WikidataClient
  participant Wikidata API
  User->>WikidataClient: getBuildingInfo(itemID)
  activate WikidataClient
  WikidataClient->Wikidata API: getBuildingInfo(itemID)
  activate Wikidata API
  alt success
    Wikidata API-->>WikidataClient: <200, {{buildingName, buildingDescription, buildingImageURL, buildingCoordinates}],<br/>architects[{itemID, architectName, architectProfileImageURL}],<br/>{itemID, styleName, styleImageURL}}>
    WikidataClient-->>User: <200, {{buildingName, buildingDescription, buildingImageURL, buildingCoordinates}],<br/>architects[{itemID, architectName, architectProfileImageURL}],<br/>{itemID, styleName, styleImageURL}}>
  else error
    Wikidata API-->>WikidataClient: <ERROR_CODE, ERROR_MESSAGE>
    deactivate Wikidata API
    WikidataClient-->>User: <ERROR_CODE, ERROR_MESSAGE>
    deactivate WikidataClient
  end 

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Feed

View Feed

sequenceDiagram
  actor User
  participant FeedService
  participant Database
  User->>FeedService: getRelevantPosts(userID)
  FeedService->>Database: findAllRelevantPosts(userID)
  activate FeedService
  activate Database
  alt SUCCESS
    Database-->>FeedService: postList[{postHeader,author,postBody,metadata}]
    FeedService-->>User: <200, postList[{postHeader,author,postBody,metadata}]>

  else USER UNAUTHORIZED
    deactivate Database
    FeedService-->>User: <401, Unauthorized>
    deactivate FeedService
  end

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Browse

sequenceDiagram
  actor User
  participant FeedService
  participant Database
  User->>FeedService: getRelevantPosts(userID, searchText)
  FeedService->>Database: findAllRelevantPosts(userID, searchText)
  activate FeedService
  activate Database
  alt SUCCESS
    Database-->>FeedService: postList[{postHeader,author,postBody,metadata}]
    FeedService-->>User: <200, postList[{postHeader,author,postBody,metadata}]>

  else USER UNAUTHORIZED
    deactivate Database
    FeedService-->>User: <401, Unauthorized>
    deactivate FeedService
  end

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Post

Create Post

sequenceDiagram
  actor User
  participant PostService
  participant Database
  User->>PostService: createPost(userID, postHeader, postBody, postImage)
  PostService->>Database: savePost(userID, postHeader, postBody, postImage)
  activate PostService
  activate Database
  alt SUCCESS
    Database-->>PostService: post[{postID}]
    PostService-->>User: <200, post[{postID}]>

  else POST ERROR
    deactivate Database
    Database-->>PostService: DB ERROR
    PostService-->>User: <500, Server Error>
    deactivate PostService


  else USER UNAUTHORIZED
    PostService-->>User: <401, Unauthorized>
  end

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Delete Post

sequenceDiagram
  actor User
  participant PostService
  participant Database
  User->>PostService: deletePost(userID, postHeader, postBody, postImage)
  PostService->>Database: deletePost(userID, postHeader, postBody, postImage)
  activate PostService
  activate Database
  alt SUCCESS
    Database-->>PostService: deletedPost[{postID}]
    PostService-->>User: <200, deletedPost[{postID}]>

  else POST ERROR
    deactivate Database
    Database-->>PostService: DB ERROR
    PostService-->>User: <500, Server Error>
    deactivate PostService


  else USER UNAUTHORIZED
    PostService-->>User: <401, Unauthorized>
  end

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Comment

sequenceDiagram
  actor User
  participant PostService
  participant Database
  User->>PostService: commentPost(userID, postHeader, postBody, postImage)
  PostService->>Database: commentPost(userID, postHeader, postBody, postImage)
  activate PostService
  activate Database
  alt SUCCESS
    Database-->>PostService: commentPost[{postID}]
    PostService-->>User: <200, commentPost[{postID}]>

  else POST ERROR
    deactivate Database
    Database-->>PostService: DB ERROR
    PostService-->>User: <500, Server Error>
    deactivate PostService


  else USER UNAUTHORIZED
    PostService-->>User: <401, Unauthorized>
  end

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Like

sequenceDiagram
  actor User
  participant PostService
  participant Database
  User->>PostService: likePost(userID, postHeader, postBody, postImage)
  PostService->>Database: likePost(userID, postHeader, postBody, postImage)
  activate PostService
  activate Database
  alt SUCCESS
    Database-->>PostService: likePost[{postID}]
    PostService-->>User: <200, likePost[{postID}]>

  else POST ERROR
    deactivate Database
    Database-->>PostService: DB ERROR
    PostService-->>User: <500, Server Error>
    deactivate PostService


  else USER UNAUTHORIZED
    PostService-->>User: <401, Unauthorized>
  end

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Bookmark

sequenceDiagram
  actor User
  participant PostService
  participant Database
  User->>PostService: bookmarkPost(userID, postHeader, postBody, postImage)
  PostService->>Database: bookmarkPost(userID, postHeader, postBody, postImage)
  activate PostService
  activate Database
  alt SUCCESS
    Database-->>PostService: bookmarkPost[{postID}]
    PostService-->>User: <200, bookmarkPost[{postID}]>

  else POST ERROR
    deactivate Database
    Database-->>PostService: DB ERROR
    PostService-->>User: <500, Server Error>
    deactivate PostService


  else USER UNAUTHORIZED
    PostService-->>User: <401, Unauthorized>
  end

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Share

sequenceDiagram
  actor User
  participant PostService
  participant Database
  User->>PostService: sharePost(userID, postHeader, postBody, postImage)
  PostService->>Database: sharePost(userID, postHeader, postBody, postImage)
  activate PostService
  activate Database
  alt SUCCESS
    Database-->>PostService: sharePost[{postID}]
    PostService-->>User: <200, sharePost[{postID}]>

  else POST ERROR
    deactivate Database
    Database-->>PostService: DB ERROR
    PostService-->>User: <500, Server Error>
    deactivate PostService


  else USER UNAUTHORIZED
    PostService-->>User: <401, Unauthorized>
  end

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Report

sequenceDiagram
  actor User
  participant PostService
  participant Database
  User->>PostService: reportPost(userID, postHeader, postBody, postImage)
  PostService->>Database: reportPost(userID, postHeader, postBody, postImage)
  activate PostService
  activate Database
  alt SUCCESS
    Database-->>PostService: reportPost[{postID}]
    PostService-->>User: <200, reportPost[{postID}]>

  else POST ERROR
    deactivate Database
    Database-->>PostService: DB ERROR
    PostService-->>User: <500, Server Error>
    deactivate PostService


  else USER UNAUTHORIZED
    PostService-->>User: <401, Unauthorized>
  end

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Profile

View Profile

sequenceDiagram
  actor User
  participant AccountService
  participant Database
  User->>AccountService: viewUser(userID)
  AccountService->>Database: viewUser(userID)
  activate AccountService
  activate Database
  alt SUCCESS
    Database-->>AccountService: viewUser[{userID}]
    AccountService-->>User: <200, viewUser[{userID}]>

  else POST ERROR
    deactivate Database
    Database-->>AccountService: DB ERROR
    AccountService-->>User: <500, Server Error>
    deactivate AccountService


  else USER UNAUTHORIZED
    PostService-->>User: <401, Unauthorized>
  end

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Update Profile

sequenceDiagram
  actor User
  participant AccountService
  participant Database
  User->>AccountService: changeUser(userID, postHeader, postBody, postImage)
  AccountService->>Database: changeUser(userID, postHeader, postBody, postImage)
  activate AccountService
  activate Database
  alt SUCCESS
    Database-->>AccountService: changeUser[{postID}]
    AccountService-->>User: <200, changeUser[{postID}]>

  else POST ERROR
    deactivate Database
    Database-->>AccountService: DB ERROR
    AccountService-->>User: <500, Server Error>
    deactivate AccountService


  else USER UNAUTHORIZED
    AccountService-->>User: <401, Unauthorized>
  end

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