Revert breaking changes

Author: pluma

CHANGELOG.md

@@ -16,20 +16,6 @@ This driver uses semantic versioning:
 
 ## [Unreleased]
 
-### Removed
-
-- Removed `Dict` type from `connection` module
-
-  The `Dict<T>` type was identical to `Record<string, T>` and has been replaced
-  with this built-in type across arangojs.
-
-### Changed
-
-- Updated TypeScript to version 4
-
-  This may result in type signatures that are incompatible with TypeScript 3
-  being added in future releases (including patch releases).
-
 ### Added
 
 - Added `collection.documents` for fetching multiple documents

package.json

@@ -95,7 +95,7 @@
     "semver": "^7.3.5",
     "source-map-support": "^0.5.19",
     "typedoc": "^0.20.36",
-    "typescript": "^4.2.4",
+    "typescript": "^3.8.3",
     "url": "^0.11.0",
     "webpack": "^4.46.0",
     "webpack-cli": "^4.6.0",

src/aql.ts

@@ -11,6 +11,7 @@
  * @packageDocumentation
  */
 import { ArangoCollection, isArangoCollection } from "./collection";
+import { Dict } from "./connection";
 import { Graph, isArangoGraph } from "./graph";
 import { isArangoView, View } from "./view";
 
@@ -29,7 +30,7 @@ export interface AqlQuery {
    * Names of parameters representing collections are prefixed with an
    * at-symbol.
    */
-  bindVars: Record<string, any>;
+  bindVars: Dict<any>;
 }
 
 /**
@@ -206,7 +207,7 @@ export function aql(
   ...args: AqlValue[]
 ): GeneratedAqlQuery {
   const strings = [...templateStrings];
-  const bindVars: Record<string, any> = {};
+  const bindVars: Dict<any> = {};
   const bindValues = [];
   let query = strings[0];
   for (let i = 0; i < args.length; i++) {

src/collection.ts

@@ -11,7 +11,7 @@
  *
  * @packageDocumentation
  */
-import { ArangoResponseMetadata, Params } from "./connection";
+import { ArangoResponseMetadata, Dict, Params } from "./connection";
 import { ArrayCursor, BatchedArrayCursor } from "./cursor";
 import { Database } from "./database";
 import {
@@ -1388,7 +1388,7 @@ export interface DocumentCollection<T extends Record<string, unknown> = any>
   ): Promise<
     ArangoResponseMetadata &
       CollectionMetadata &
-      CollectionProperties & { count: number; figures: Record<string, any> }
+      CollectionProperties & { count: number; figures: Dict<any> }
   >;
   /**
    * Retrieves the collection revision ID.
@@ -3441,7 +3441,7 @@ export class Collection<T extends Record<string, unknown> = any>
     CollectionMetadata &
       CollectionProperties & {
         count: number;
-        figures: Record<string, any>;
+        figures: Dict<any>;
       } & ArangoResponseMetadata
   > {
     return this._db.request({

src/connection.ts

@@ -33,6 +33,13 @@ import {
 const MIME_JSON = /\/(json|javascript)(\W|$)/;
 const LEADER_ENDPOINT_HEADER = "x-arango-endpoint";
 
+/**
+ * Generic type representing an object with values of a given value type.
+ *
+ * @param T - Type of the object's property values.
+ */
+export type Dict<T> = { [key: string]: T };
+
 /**
  * Determines the behavior when multiple URLs are used:
  *
@@ -53,13 +60,13 @@ export type LoadBalancingStrategy = "NONE" | "ROUND_ROBIN" | "ONE_RANDOM";
  *
  * Header names should always be lowercase.
  */
-export type Headers = Record<string, string>;
+export type Headers = Dict<string>;
 
 /**
  * An arbitrary object with scalar values representing query string parameters
  * and their values.
  */
-export type Params = Record<string, any>;
+export type Params = Dict<any>;
 
 /**
  * Generic properties shared by all ArangoDB HTTP API responses.

src/cursor.ts

@@ -8,6 +8,7 @@
  * @packageDocumentation
  */
 import { LinkedList } from "x3-linkedlist";
+import { Dict } from "./connection";
 import { Database } from "./database";
 
 /**
@@ -32,7 +33,7 @@ export interface CursorExtras {
   /**
    * Additional statistics about the query execution.
    */
-  stats?: Record<string, any>;
+  stats?: Dict<any>;
 }
 
 interface BatchView<T = any> {