Allow cancellation of tiledb queries

Author: SarantopoulosKon

src/TileDBQuery/TileDBQuery.ts

@@ -147,6 +147,7 @@ export class TileDBQuery {
       undefined,
       undefined,
       {
+        cancelToken: options.cancelToken,
         headers: {
           'Content-Type': 'application/capnp'
         },
@@ -210,7 +211,8 @@ export class TileDBQuery {
         ignoreOffsets: body.ignoreOffsets,
         attributes: body.attributes,
         returnOffsets: body.returnOffsets,
-        returnRawBuffers: body.returnRawBuffers
+        returnRawBuffers: body.returnRawBuffers,
+        cancelToken: body.cancelToken
       };
       /**
        * Get the query response in capnp, we set responseType to arraybuffer instead of JSON
@@ -227,6 +229,7 @@ export class TileDBQuery {
         undefined,
         undefined,
         {
+          cancelToken: body.cancelToken,
           headers: {
             'Content-Type': 'application/capnp'
           },

src/utils/getResultsFromArrayBuffer.ts

@@ -7,6 +7,7 @@ import setNullables from './setNullables';
 import groupValuesByOffsetBytes from './groupValuesByOffsetBytes';
 import concatChars from './concatChars';
 import convertToArray from './convertToArray';
+import { CancelToken } from 'axios';
 
 export interface Options {
   /**
@@ -31,6 +32,10 @@ export interface Options {
    * Return offsets for every var-length attribute
    */
   returnOffsets?: boolean;
+  /**
+   * CancelToken
+   */
+  cancelToken?: CancelToken;
 }
 
 type Result =