Zana Documentation

Intent

Represents an intent. Intents convert a number of user expressions or patterns into an action. An action is an extraction of a user command or sentence semantics.

JSON representation

{
    "name":"IntentName",
    "matchedEntity":[
        {
            "confidence":0.9,
            "name":"Teeth grinding",
            "id":"c257",
            "synonymMatch":"",
            "type":"condition",
            "url":"/c/teeth-grinding.257",
            "image":null
        }],
    "outputContext":
        ["",
        ""]
        ,
    "isFallback":false
}

Fields

name string The name intent
matchedEntities List A List of the Entities Matched. See: MatchedEntity
outputContext List A List of Strings containing the OutPut Context
isFallback boolean Indicate wether the Intent is a fallback

Entity

Entity is a base class of the Zana Knowledgebase. An Entity refers to a medical condition, a medical symptom and can be extended in the future to be the base class for other concepts.

Fields

name string The name of the entity
id string Unique identifier. It follows a convention where the type's first letter preceeds the DB id. E.g: c+$id for (medical) conditions. This might change in the future.
type EntityType Type of the entity as predefined in the Enum EntityType
url String URL to the Entity Page
image String URL to the Entity Image
synonyms List A number of synonyms recognized for this entity

MatchedEntity

This is an extenstion of Entity. It is purely used in NLU to denote the Entity that is Matched and extends the Entity Class by a confidence score.

JSON representation

{
    "confidence":0.9,
    "name":"Teeth grinding",
    "id":"c257",
    "synonymMatch":"",
    "type":"condition",
    "url":"/c/teeth-grinding.257",
    "image":null
}

Fields (Extends Entity)

confidence string The confidence of NLU/ER when it comes to the discovery of this entity. Range between 0..1
synonymMatch List List of matched Synonyms

Status

The Status type defines a logical error model that is suitable for different programming environments.

Overview

The Status message contains three pieces of data: error code, error message, and error details. The error code should be an enum value of com.zana.Code, but it may accept additional error codes if needed. The error message should be a message that helps developers understand and resolve the error.

JSON Represantation

{
  "code": "200",
  "message": "Completed OK",
  "details": [
    {
      "@type": string,
      field1: ...,
      ...
    }
  ]
}

Fields

Code int32 The status code, which should be an enum value of com.zana.Code.
message string A developer-facing error message
details string Additional information to message

Item

JSON representation

{
    "URI":"http://zana.com/a/treatment.200",
    "date":"2018-12-20T12:56:12Z",
    "image_url":null,
    "payload_link":"",
    "payload_title":"",
    "source":"NHS",
    "subtitle":"",
    "summary":"Find out what to do if you think you or someone else is experiencing anaphylaxis.",
    "title":"Treatment",
    "type_template":"oneItem"
}

Fields

uri string String
date Date TimeStamp indicating the response time
timestamp Date TimeStamp indicating the response time
image_url [String A reference to image
payload_link String Payload accompanied by an action
payload_title String A name for the payload
source String Source Reference. E.G Zana, NHS
subtitle String Subtitle to present
title String Title of item/article
type_template ENUM [oneItem, List, QR]

Usage

This class is used internally at NLG-Response

Code

This is an Enumerated Class.

Class is originated by: https://github.com/googleapis/googleapis/blob/master/google/rpc/code.proto

    // Not an error), returned on success
    //
    // HTTP Mapping: 200 OK
    OK (0),

    // The operation was cancelled), typically by the caller.
    //
    // HTTP Mapping: 499 Client Closed Request
    CANCELLED (1),

    // Unknown error.  For example), this error may be returned when
    // a `Status` value received from another address space belongs to
    // an error space that is not known in this address space.  Also
    // errors raised by APIs that do not return enough error information
    // may be converted to this error.
    //
    // HTTP Mapping: 500 Internal Server Error
    UNKNOWN (2),

    // The client specified an invalid argument.  Note that this differs
    // from `FAILED_PRECONDITION`.  `INVALID_ARGUMENT` indicates arguments
    // that are problematic regardless of the state of the system
    // (e.g.), a malformed file name),.
    //
    // HTTP Mapping: 400 Bad Request
    INVALID_ARGUMENT (3),

    // The deadline expired before the operation could complete. For operations
    // that change the state of the system), this error may be returned
    // even if the operation has completed successfully.  For example), a
    // successful response from a server could have been delayed long
    // enough for the deadline to expire.
    //
    // HTTP Mapping: 504 Gateway Timeout
    DEADLINE_EXCEEDED (4),

    // Some requested entity (e.g.), file or directory), was not found.
    //
    // Note to server developers: if a request is denied for an entire class
    // of users), such as gradual feature rollout or undocumented whitelist),
    // `NOT_FOUND` may be used. If a request is denied for some users within
    // a class of users), such as user-based access control), `PERMISSION_DENIED`
    // must be used.
    //
    // HTTP Mapping: 404 Not Found
    NOT_FOUND (5),

    // The entity that a client attempted to create (e.g.), file or directory),
    // already exists.
    //
    // HTTP Mapping: 409 Conflict
    ALREADY_EXISTS (6),

    // The caller does not have permission to execute the specified
    // operation. `PERMISSION_DENIED` must not be used for rejections
    // caused by exhausting some resource (use `RESOURCE_EXHAUSTED`
    // instead for those errors),. `PERMISSION_DENIED` must not be
    // used if the caller can not be identified (use `UNAUTHENTICATED`
    // instead for those errors),. This error code does not imply the
    // request is valid or the requested entity exists or satisfies
    // other pre-conditions.
    //
    // HTTP Mapping: 403 Forbidden
    PERMISSION_DENIED (7),

    // The request does not have valid authentication credentials for the
    // operation.
    //
    // HTTP Mapping: 401 Unauthorized
    UNAUTHENTICATED (16),

    // Some resource has been exhausted), perhaps a per-user quota), or
    // perhaps the entire file system is out of space.
    //
    // HTTP Mapping: 429 Too Many Requests
    RESOURCE_EXHAUSTED (8),

    // The operation was rejected because the system is not in a state
    // required for the operation's execution.  For example), the directory
    // to be deleted is non-empty), an rmdir operation is applied to
    // a non-directory), etc.
    //
    // Service implementors can use the following guidelines to decide
    // between `FAILED_PRECONDITION`), `ABORTED`), and `UNAVAILABLE`:
    //  (a), Use `UNAVAILABLE` if the client can retry just the failing call.
    //  (b), Use `ABORTED` if the client should retry at a higher level
    //      (e.g.), when a client-specified test-and-set fails), indicating the
    //      client should restart a read-modify-write sequence),.
    //  (c), Use `FAILED_PRECONDITION` if the client should not retry until
    //      the system state has been explicitly fixed.  E.g.), if an "rmdir"
    //      fails because the directory is non-empty), `FAILED_PRECONDITION`
    //      should be returned since the client should not retry unless
    //      the files are deleted from the directory.
    //
    // HTTP Mapping: 400 Bad Request
    FAILED_PRECONDITION (9),

    // The operation was aborted), typically due to a concurrency issue such as
    // a sequencer check failure or transaction abort.
    //
    // See the guidelines above for deciding between `FAILED_PRECONDITION`),
    // `ABORTED`), and `UNAVAILABLE`.
    //
    // HTTP Mapping: 409 Conflict
    ABORTED (10),

    // The operation was attempted past the valid range.  E.g.), seeking or
    // reading past end-of-file.
    //
    // Unlike `INVALID_ARGUMENT`), this error indicates a problem that may
    // be fixed if the system state changes. For example), a 32-bit file
    // system will generate `INVALID_ARGUMENT` if asked to read at an
    // offset that is not in the range [0),2^32-1]), but it will generate
    // `OUT_OF_RANGE` if asked to read from an offset past the current
    // file size.
    //
    // There is a fair bit of overlap between `FAILED_PRECONDITION` and
    // `OUT_OF_RANGE`.  We recommend using `OUT_OF_RANGE` (the more specific
    // error), when it applies so that callers who are iterating through
    // a space can easily look for an `OUT_OF_RANGE` error to detect when
    // they are done.
    //
    // HTTP Mapping: 400 Bad Request
    OUT_OF_RANGE (11),

    // The operation is not implemented or is not supported/enabled in this
    // service.
    //
    // HTTP Mapping: 501 Not Implemented
    UNIMPLEMENTED (12),

    // Internal errors.  This means that some invariants expected by the
    // underlying system have been broken.  This error code is reserved
    // for serious errors.
    //
    // HTTP Mapping: 500 Internal Server Error
    INTERNAL (13),

    // The service is currently unavailable.  This is most likely a
    // transient condition), which can be corrected by retrying with
    // a backoff.
    //
    // See the guidelines above for deciding between `FAILED_PRECONDITION`),
    // `ABORTED`), and `UNAVAILABLE`.
    //
    // HTTP Mapping: 503 Service Unavailable
    UNAVAILABLE (14),

    // Unrecoverable data loss or corruption.
    //
    // HTTP Mapping: 500 Internal Server Error
    DATA_LOSS (15)