ts-sc-client

The typescript implementation of the client for communication with sc-server. This module is compatible with 0.6.0 and 0.6.1 version of sc-machine.

ScClient

connect

First of all one should create client instance. To do so:

    import { ScClient } from "ts-sc-client";

    const client = new ScClient('https://your-knowledge-base-websocket-url');

By default client is browser based, so it uses window.WebSocket class. When using with node js one may pass custom websocket instanse

    import { WebSocket } from "ws";

    const client = new ScClient(new WebSocket('https://your-knowledge-base-websocket-url'));

Created instance provides the following methods:

client.addEventListener(evt: "close", "error", "open", callback): void

This method is a native websocket addEventListener. So it provides all basic socket event types: close, error, open

    import { client } from "../path-to-client";

    client.addEventListener("open", () => {
        // some logic to inform or proccess socket connection opening
    })
    
    client.addEventListener("error", () => {
        // socket connetion resolved with error
    })
    
    client.addEventListener("close", () => {
        // socket connetion is closed
    })

client.removeEventListener(evt: "close", "error", "open", callback): void

This method is a native websocket removeEventListener. All event types are the same as for addEventListener

    import { client } from "../path-to-client";

    client.removeEventListener("open", () => {})
    
    client.removeEventListener("error", () => {})
    
    client.removeEventListener("close", () => {})

client.createElements(construction: ScConstruction): ScAddrs[]

Create specified in ScConstruction elements.

    import { ScAddr, ScConstruction } from "ts-sc-client";
    import { client } from "../path-to-client";

    const myNode = "_node";
    const myLink = "_link";

    const linkContent = "my_content";
    const fakeNodeAddr = new ScAddr(123);

    const construction = new ScConstruction();

    construction.createNode(ScType.NodeConst, myNode);
    construction.createLink(
      ScType.LinkConst,
      new ScLinkContent(linkContent, ScLinkContentType.String),
      myLink
    );
    construction.createEdge(
      ScType.EdgeAccessConstPosPerm,
      myNode,
      fakeNodeAddr
    );

    const res = await client.createElements(construction);

client.createElementsBySCs(scsText: string[]): boolean[]

Create specified in ScConstruction elements by SCs text. Returned boolean represents whether SCs text processing was successfull.

    import { client } from "../path-to-client";

    const res = await client.createElementsBySCs(
        ["my_class -> node1;;", "node1 => relation: node2;;"]
    );

client.deleteElements(addrs: ScAddr[]): boolean

Delete specified elements. Returned boolean represents whether deleting was successfull.

    import { client } from "../path-to-client";

    const res = await client.deleteElements([addr1, addr2]);

client.checkElements(addrs: ScAddr[]): ScType[]

With this method you can check if specified elements exist. If element does not exits, returned ScType will be invalid

    import { client } from "../path-to-client";

    const res = await client.checkElements([addr1, addr2]);

client.setLinkContents(addrs: ScAddr[]): boolean[]

With this method you can set link content. Returned boolean array is made respective to passed one. Each element represents if content was set successfully.

    import { ScLinkContentType } from "ts-sc-client";
    import { client } from "../path-to-client";

    const content = "my_content";
    const linkContent = new ScLinkContent(content, ScLinkContentType.String);

    const res = await client.setLinkContents([linkContent]);

client.getLinkContents(addrs: ScAddr[]): ScLinkContent[]

With this method you can get link content.

    import { client } from "../path-to-client";

    const res = await client.getLinkContents([nodeAddr]);

client.resolveKeynodes<T = string>(Array<{idtf: T, type: ScType}>): Record<T, ScAddr>

Find or resolve keynodes. When type is valid, element will be resolved by id or found otherwise.

    import { client } from "../path-to-client";

    const id1 = "my_id1";
    const id2 = "my_id2";

    const keynodes = [
      { id: id1, type: ScType.EdgeDCommon },
      { id: id2, type: new ScType() },
    ];

    const res = await client.resolveKeynodes(keynodes);

    /**
     * res will be:
     * 
     * {
     *   my_id1: ScAddr,
     *   my_id2: ScAddr,
     * }
    */

client.templateSearch(templ: ScTemplate): ScTemplateResult[]

Search constructions by specified template. When multiple templates are found each array elem represents search result

    import { ScAddr, ScTemplate } from "ts-sc-client";
    import { client } from "../path-to-client";

    const fakeAddr1 = new ScAddr(123);
    const fakeAddr2 = new ScAddr(1232333);

    const circuitDialogAlias = "_circuit_dialog";
    const dialog = "_dialog";

    const template = new ScTemplate();

    template.tripleWithRelation(
      fakeAddr1,
      ScType.EdgeDCommonVar,
      [ScType.NodeVarStruct, circuitDialogAlias],
      ScType.EdgeAccessVarPosPerm,
      fakeAddr2
    );
    template.triple(circuitDialogAlias, ScType.EdgeAccessVarPosPerm, [
      ScType.NodeVar,
      dialog,
    ]);

    const res = await client.templateSearch(template);

client.templateGenerate(templ: ScTemplate): ScTemplateResult

Generate construction by specified template.

    import { ScAddr, ScTemplate } from "ts-sc-client";
    import { client } from "../path-to-client";

    const fakeAddr1 = new ScAddr(123);
    const fakeAddr2 = new ScAddr(1232333);

    const fakeParamAddr = new ScAddr(777);

    const circuitDialogAlias = "_circuit_dialog";
    const dialog = "_dialog";

    const template = new ScTemplate();

    template.tripleWithRelation(
      fakeAddr1,
      ScType.EdgeDCommonVar,
      [ScType.NodeVarStruct, circuitDialogAlias],
      ScType.EdgeAccessVarPosPerm,
      fakeAddr2
    );
    template.triple(circuitDialogAlias, ScType.EdgeAccessVarPosPerm, [
      ScType.NodeVar,
      dialog,
    ]);

    const params = {
      [dialog]: fakeParamAddr,
    };

    const res = await client.templateGenerate(template, params);

client.eventsCreate(params: ScEventParams[]): ScEvent[]

Subscribe to event. Event callback, passed to ScEventParams constructor, has 4 parameters: subscribedAddr, foundEgde addr, foundNode addr and created eventId. The last one may be used to destroy event after having some specific result.

    import { ScAddr } from "ts-sc-client";
    import { client } from "../path-to-client";

    const callback = (subscribedAddr: ScAddr, foundEgde: ScAddr, foundNode: ScAddr, createdEventId: number) => {
        // some logic here
    }

    const evtParams = new ScEventParams(
      fakeAddr2,
      ScEventType.RemoveIngoingEdge,
      callback
    );

    const res = await client.eventsCreate([evtParams]);

client.eventsDestroy(eventIds: number[]): void

Destroy an event. Input arguments are event ids returned by eventsCreate method

    import { client } from "../path-to-client";

    const eventIds = [1, 2];

    await client.eventsDestroy(eventIds);

ScAddr

Simple abstraction over address in sc-memory.

const addr = new ScAddr(123);

addr.isValid(): boolean

Check if addr is valid

addr.equal(anotherAddr: ScAddr): boolean

Check if addr is equal to another one

addr.value

alows to get addr value

ScLinkContent

An abstruction over link content

const linkContent = "my_content";
const content = new ScLinkContent(linkContent, ScLinkContentType.String),

constructor(data: string | number, type: ScLinkContentType, addr?: ScAddr): ScLinkContent

Create an ScLinkContent instance

scLinkContent.data

Get link data

scLinkContent.type

Get link type

scLinkContent.addr

Get link addr

scLinkContent.typeToStr(): "binary" | "float" | "int" | "string"

Transform type to string

scLinkContent.stringToType(type: "binary" | "float" | "int" | "string"): ScLinkContentType

Transform string to type

ScConctruction

With this class one can make constuctions to create them later in sc-memory

First, one should describe construction sctructure, specifying all nodes, links and edges with it's ScTypes. If specified construction element should be used before the construction created it would be nessesary to use optional alias parameters.

const content = new ScLinkContent(linkContent, ScLinkContentType.String),

const nodeAlias = "_node";
const linkAlias = "_link";

const linkContent = "my_content";
const construction = new ScConstruction();

construction.createNode(ScType.NodeConst, nodeAlias);
construction.createLink(
  ScType.LinkConst,
  linkAlias
);
construction.createEdge(
  ScType.EdgeAccessConstPosPerm,
  nodeAlias,
  fakeNodeAddr
);

When described, construction may be passed to client to create it in sc-memory

  const res = await client.createElements(construction);

construction.createNode(type: ScType, alias?: string): void

Add node to the construction

construction.createLink(type: ScType, linkContent: ScLinkContent, alias?: string): void

Add link to the construction

construction.createEdge(type: ScType, src: string | ScAddr, trg: string | ScAddr, alias?: string): void

Add edge to the construction

construction.getIndex(alias: string): number

Get an index of spicified alias

ScTemplate

With this class one can make temple to search or generate it in sc-memory, using client.templateSearch and client.templateGenerate

const circuitDialogAlias = "_circuit_dialog";
const dialog = "_dialog";

const template = new ScTemplate();

template.tripleWithRelation(
  addr1,
  ScType.EdgeDCommonVar,
  [ScType.NodeVarStruct, circuitDialogAlias],
  ScType.EdgeAccessVarPosPerm,
  addr2
);
template.triple(circuitDialogAlias, ScType.EdgeAccessVarPosPerm, [
  ScType.NodeVar,
  dialog,
]);

  const searchResult = await client.templateSearch(template);
  const generateResult = await client.templateGenerate(template);

template.triple(param1: ScTemplateParam, param2: ScTemplateParam, param3: ScTemplateParam): void

Adds tripple to your template. ScTemplateParam is described bellow:

type ScTemplateParamValue = string | ScAddr | ScType;
type ScTemplateParam = [ScTemplateParamValue, string] | ScTemplateParamValue;

template.tripleWithRelation(param1: ScTemplateParam, param2: ScTemplateParam, param3: ScTemplateParam, param4: ScTemplateParam, param5: ScTemplateParam): void

Add tripple with relation to your template.

Warning! It is nessesary to follow the correct elements order as shown bellow

ScType

This class is an abstraction over type in sc-memory. It consists of static properties with different types, such as Link, NodeConst, NodeStruct, NodeVarTuple, etc. with corresponding check functions isNode, isEdge, and others.

const construction = new ScConstruction();

construction.createNode(ScType.NodeConst);

Build

yarn install
yarn build