Enable strict mode in tsconfig and fix type errors

.api-reports/api-report-dev.md

@@ -0,0 +1,30 @@
+## API Report File for "@apollo/client"
+
+> Do not edit this file. It is a report generated by [API Extractor](https://api-extractor.com/).
+
+```ts
+
+// @public (undocumented)
+interface ErrorCodes {
+    // (undocumented)
+    [key: number]: {
+        file: string;
+        condition?: string;
+        message?: string;
+    };
+}
+
+// @public (undocumented)
+export function loadDevMessages(): void;
+
+// Warning: (ae-forgotten-export) The symbol "ErrorCodes" needs to be exported by the entry point index.d.ts
+//
+// @public (undocumented)
+export function loadErrorMessageHandler(...errorCodes: ErrorCodes[]): ((message: string | number, args: unknown[]) => string | undefined) & ErrorCodes;
+
+// @public (undocumented)
+export function loadErrorMessages(): void;
+
+// (No @packageDocumentation comment for this package)
+
+```

.api-reports/api-report-errors.md

@@ -0,0 +1,174 @@
+## API Report File for "@apollo/client"
+
+> Do not edit this file. It is a report generated by [API Extractor](https://api-extractor.com/).
+
+```ts
+
+import type { ExecutionResult } from 'graphql';
+import type { GraphQLError } from 'graphql';
+import type { GraphQLErrorExtensions } from 'graphql';
+
+// @public (undocumented)
+export class ApolloError extends Error {
+    constructor({ graphQLErrors, protocolErrors, clientErrors, networkError, errorMessage, extraInfo, }: ApolloErrorOptions);
+    // (undocumented)
+    clientErrors: ReadonlyArray<Error>;
+    // (undocumented)
+    extraInfo: any;
+    // (undocumented)
+    graphQLErrors: GraphQLErrors;
+    // (undocumented)
+    message: string;
+    // (undocumented)
+    name: string;
+    // Warning: (ae-forgotten-export) The symbol "ServerParseError" needs to be exported by the entry point index.d.ts
+    // Warning: (ae-forgotten-export) The symbol "ServerError" needs to be exported by the entry point index.d.ts
+    //
+    // (undocumented)
+    networkError: Error | ServerParseError | ServerError | null;
+    // (undocumented)
+    protocolErrors: ReadonlyArray<{
+        message: string;
+        extensions?: GraphQLErrorExtensions[];
+    }>;
+}
+
+// @public (undocumented)
+export interface ApolloErrorOptions {
+    // (undocumented)
+    clientErrors?: ReadonlyArray<Error>;
+    // (undocumented)
+    errorMessage?: string;
+    // (undocumented)
+    extraInfo?: any;
+    // (undocumented)
+    graphQLErrors?: ReadonlyArray<GraphQLError>;
+    // (undocumented)
+    networkError?: Error | ServerParseError | ServerError | null;
+    // (undocumented)
+    protocolErrors?: ReadonlyArray<{
+        message: string;
+        extensions?: GraphQLErrorExtensions[];
+    }>;
+}
+
+// @public (undocumented)
+interface DefaultContext extends Record<string, any> {
+}
+
+// Warning: (ae-forgotten-export) The symbol "ExecutionPatchResultBase" needs to be exported by the entry point index.d.ts
+//
+// @public (undocumented)
+interface ExecutionPatchIncrementalResult<TData = Record<string, any>, TExtensions = Record<string, any>> extends ExecutionPatchResultBase {
+    // (undocumented)
+    data?: never;
+    // (undocumented)
+    errors?: never;
+    // (undocumented)
+    extensions?: never;
+    // Warning: (ae-forgotten-export) The symbol "IncrementalPayload" needs to be exported by the entry point index.d.ts
+    //
+    // (undocumented)
+    incremental?: IncrementalPayload<TData, TExtensions>[];
+}
+
+// @public (undocumented)
+interface ExecutionPatchInitialResult<TData = Record<string, any>, TExtensions = Record<string, any>> extends ExecutionPatchResultBase {
+    // (undocumented)
+    data: TData | null | undefined;
+    // (undocumented)
+    errors?: ReadonlyArray<GraphQLError>;
+    // (undocumented)
+    extensions?: TExtensions;
+    // (undocumented)
+    incremental?: never;
+}
+
+// Warning: (ae-forgotten-export) The symbol "ExecutionPatchInitialResult" needs to be exported by the entry point index.d.ts
+// Warning: (ae-forgotten-export) The symbol "ExecutionPatchIncrementalResult" needs to be exported by the entry point index.d.ts
+//
+// @public (undocumented)
+type ExecutionPatchResult<TData = Record<string, any>, TExtensions = Record<string, any>> = ExecutionPatchInitialResult<TData, TExtensions> | ExecutionPatchIncrementalResult<TData, TExtensions>;
+
+// @public (undocumented)
+interface ExecutionPatchResultBase {
+    // (undocumented)
+    hasNext?: boolean;
+}
+
+// Warning: (ae-forgotten-export) The symbol "SingleExecutionResult" needs to be exported by the entry point index.d.ts
+// Warning: (ae-forgotten-export) The symbol "ExecutionPatchResult" needs to be exported by the entry point index.d.ts
+//
+// @public (undocumented)
+type FetchResult<TData = Record<string, any>, TContext = Record<string, any>, TExtensions = Record<string, any>> = SingleExecutionResult<TData, TContext, TExtensions> | ExecutionPatchResult<TData, TExtensions>;
+
+// Warning: (ae-forgotten-export) The symbol "FetchResult" needs to be exported by the entry point index.d.ts
+//
+// @public (undocumented)
+type FetchResultWithSymbolExtensions<T> = FetchResult<T> & {
+    extensions: Record<string | symbol, any>;
+};
+
+// @public (undocumented)
+export type GraphQLErrors = ReadonlyArray<GraphQLError>;
+
+// Warning: (ae-forgotten-export) The symbol "FetchResultWithSymbolExtensions" needs to be exported by the entry point index.d.ts
+//
+// @public (undocumented)
+export function graphQLResultHasProtocolErrors<T>(result: FetchResult<T>): result is FetchResultWithSymbolExtensions<T>;
+
+// @public (undocumented)
+interface IncrementalPayload<TData, TExtensions> {
+    // (undocumented)
+    data: TData | null;
+    // (undocumented)
+    errors?: ReadonlyArray<GraphQLError>;
+    // (undocumented)
+    extensions?: TExtensions;
+    // (undocumented)
+    label?: string;
+    // Warning: (ae-forgotten-export) The symbol "Path" needs to be exported by the entry point index.d.ts
+    //
+    // (undocumented)
+    path: Path;
+}
+
+// @public (undocumented)
+export function isApolloError(err: Error): err is ApolloError;
+
+// @public (undocumented)
+export type NetworkError = Error | ServerParseError | ServerError | null;
+
+// @public (undocumented)
+type Path = ReadonlyArray<string | number>;
+
+// @public (undocumented)
+export const PROTOCOL_ERRORS_SYMBOL: unique symbol;
+
+// @public (undocumented)
+type ServerError = Error & {
+    response: Response;
+    result: Record<string, any> | string;
+    statusCode: number;
+};
+
+// @public (undocumented)
+type ServerParseError = Error & {
+    response: Response;
+    statusCode: number;
+    bodyText: string;
+};
+
+// Warning: (ae-forgotten-export) The symbol "DefaultContext" needs to be exported by the entry point index.d.ts
+//
+// @public (undocumented)
+interface SingleExecutionResult<TData = Record<string, any>, TContext = DefaultContext, TExtensions = Record<string, any>> extends ExecutionResult<TData, TExtensions> {
+    // (undocumented)
+    context?: TContext;
+    // (undocumented)
+    data?: TData | null;
+}
+
+// (No @packageDocumentation comment for this package)
+
+```