TypeScript declarations for a DOM-free React Native project

dom-interfaces.d.ts

/* For react DOM */

interface Event {}
interface AnimationEvent extends Event {}
interface ClipboardEvent extends Event {}
interface CompositionEvent extends Event {}
interface DragEvent extends Event {}
interface FocusEvent extends Event {}
interface KeyboardEvent extends Event {}
interface MouseEvent extends Event {}
interface TouchEvent extends Event {}
interface TransitionEvent extends Event {}
interface UIEvent extends Event {}
interface WheelEvent extends Event {}

interface EventTarget {}
interface Document {}
interface DataTransfer {}
interface StyleMedia {}

interface Element {}

interface HTMLElement extends Element {}
interface HTMLAnchorElement extends HTMLElement {}
interface HTMLAreaElement extends HTMLElement {}
interface HTMLAudioElement extends HTMLElement {}
interface HTMLBaseElement extends HTMLElement {}
interface HTMLBodyElement extends HTMLElement {}
interface HTMLBRElement extends HTMLElement {}
interface HTMLButtonElement extends HTMLElement {}
interface HTMLCanvasElement extends HTMLElement {}
interface HTMLDivElement extends HTMLElement {}
interface HTMLDListElement extends HTMLElement {}
interface HTMLEmbedElement extends HTMLElement {}
interface HTMLFieldSetElement extends HTMLElement {}
interface HTMLFormElement extends HTMLElement {}
interface HTMLHeadingElement extends HTMLElement {}
interface HTMLHeadElement extends HTMLElement {}
interface HTMLHRElement extends HTMLElement {}
interface HTMLTableColElement extends HTMLElement {}
interface HTMLDataListElement extends HTMLElement {}
interface HTMLHtmlElement extends HTMLElement {}
interface HTMLIFrameElement extends HTMLElement {}
interface HTMLImageElement extends HTMLElement {}
interface HTMLInputElement extends HTMLElement {}
interface HTMLModElement extends HTMLElement {}
interface HTMLLabelElement extends HTMLElement {}
interface HTMLLegendElement extends HTMLElement {}
interface HTMLLIElement extends HTMLElement {}
interface HTMLLinkElement extends HTMLElement {}
interface HTMLMapElement extends HTMLElement {}
interface HTMLMetaElement extends HTMLElement {}
interface HTMLObjectElement extends HTMLElement {}
interface HTMLOListElement extends HTMLElement {}
interface HTMLOptGroupElement extends HTMLElement {}
interface HTMLOptionElement extends HTMLElement {}
interface HTMLParagraphElement extends HTMLElement {}
interface HTMLParamElement extends HTMLElement {}
interface HTMLPreElement extends HTMLElement {}
interface HTMLProgressElement extends HTMLElement {}
interface HTMLQuoteElement extends HTMLElement {}
interface HTMLScriptElement extends HTMLElement {}
interface HTMLSelectElement extends HTMLElement {}
interface HTMLSourceElement extends HTMLElement {}
interface HTMLSpanElement extends HTMLElement {}
interface HTMLStyleElement extends HTMLElement {}
interface HTMLTableElement extends HTMLElement {}
interface HTMLTableSectionElement extends HTMLElement {}
interface HTMLTableDataCellElement extends HTMLElement {}
interface HTMLTextAreaElement extends HTMLElement {}
interface HTMLTableSectionElement extends HTMLElement {}
interface HTMLTableHeaderCellElement extends HTMLElement {}
interface HTMLTableSectionElement extends HTMLElement {}
interface HTMLTitleElement extends HTMLElement {}
interface HTMLTableRowElement extends HTMLElement {}
interface HTMLTrackElement extends HTMLElement {}
interface HTMLUListElement extends HTMLElement {}
interface HTMLVideoElement extends HTMLElement {}
interface HTMLTableColElement extends HTMLElement {}
interface HTMLDataListElement extends HTMLElement {}
interface HTMLHtmlElement extends HTMLElement {}
interface HTMLIFrameElement extends HTMLElement {}
interface HTMLImageElement extends HTMLElement {}
interface HTMLInputElement extends HTMLElement {}
interface HTMLModElement extends HTMLElement {}
interface HTMLLabelElement extends HTMLElement {}
interface HTMLLegendElement extends HTMLElement {}
interface HTMLLIElement extends HTMLElement {}
interface HTMLLinkElement extends HTMLElement {}
interface HTMLMapElement extends HTMLElement {}
interface HTMLMetaElement extends HTMLElement {}
interface HTMLObjectElement extends HTMLElement {}
interface HTMLOListElement extends HTMLElement {}
interface HTMLOptGroupElement extends HTMLElement {}
interface HTMLOptionElement extends HTMLElement {}
interface HTMLParagraphElement extends HTMLElement {}
interface HTMLParamElement extends HTMLElement {}
interface HTMLPreElement extends HTMLElement {}
interface HTMLProgressElement extends HTMLElement {}
interface HTMLQuoteElement extends HTMLElement {}
interface HTMLScriptElement extends HTMLElement {}
interface HTMLSelectElement extends HTMLElement {}
interface HTMLSourceElement extends HTMLElement {}
interface HTMLSpanElement extends HTMLElement {}
interface HTMLStyleElement extends HTMLElement {}
interface HTMLTableElement extends HTMLElement {}
interface HTMLTableSectionElement extends HTMLElement {}
interface HTMLTableDataCellElement extends HTMLElement {}
interface HTMLTextAreaElement extends HTMLElement {}
interface HTMLTableSectionElement extends HTMLElement {}
interface HTMLTableHeaderCellElement extends HTMLElement {}
interface HTMLTableSectionElement extends HTMLElement {}
interface HTMLTitleElement extends HTMLElement {}
interface HTMLTableRowElement extends HTMLElement {}
interface HTMLTrackElement extends HTMLElement {}
interface HTMLUListElement extends HTMLElement {}
interface HTMLVideoElement extends HTMLElement {}

interface SVGElement extends Element {}
interface SVGSVGElement extends SVGElement {}
interface SVGCircleElement extends SVGElement {}
interface SVGClipPathElement extends SVGElement {}
interface SVGDefsElement extends SVGElement {}
interface SVGDescElement extends SVGElement {}
interface SVGEllipseElement extends SVGElement {}
interface SVGFEBlendElement extends SVGElement {}
interface SVGFEColorMatrixElement extends SVGElement {}
interface SVGFEComponentTransferElement extends SVGElement {}
interface SVGFECompositeElement extends SVGElement {}
interface SVGFEConvolveMatrixElement extends SVGElement {}
interface SVGFEDiffuseLightingElement extends SVGElement {}
interface SVGFEDisplacementMapElement extends SVGElement {}
interface SVGFEDistantLightElement extends SVGElement {}
interface SVGFEFloodElement extends SVGElement {}
interface SVGFEFuncAElement extends SVGElement {}
interface SVGFEFuncBElement extends SVGElement {}
interface SVGFEFuncGElement extends SVGElement {}
interface SVGFEFuncRElement extends SVGElement {}
interface SVGFEGaussianBlurElement extends SVGElement {}
interface SVGFEImageElement extends SVGElement {}
interface SVGFEMergeElement extends SVGElement {}
interface SVGFEMergeNodeElement extends SVGElement {}
interface SVGFEMorphologyElement extends SVGElement {}
interface SVGFEOffsetElement extends SVGElement {}
interface SVGFEPointLightElement extends SVGElement {}
interface SVGFESpecularLightingElement extends SVGElement {}
interface SVGFESpotLightElement extends SVGElement {}
interface SVGFETileElement extends SVGElement {}
interface SVGFETurbulenceElement extends SVGElement {}
interface SVGFilterElement extends SVGElement {}
interface SVGForeignObjectElement extends SVGElement {}
interface SVGGElement extends SVGElement {}
interface SVGImageElement extends SVGElement {}
interface SVGLineElement extends SVGElement {}
interface SVGLinearGradientElement extends SVGElement {}
interface SVGMarkerElement extends SVGElement {}
interface SVGMaskElement extends SVGElement {}
interface SVGMetadataElement extends SVGElement {}
interface SVGPathElement extends SVGElement {}
interface SVGPatternElement extends SVGElement {}
interface SVGPolygonElement extends SVGElement {}
interface SVGPolylineElement extends SVGElement {}
interface SVGRadialGradientElement extends SVGElement {}
interface SVGRectElement extends SVGElement {}
interface SVGStopElement extends SVGElement {}
interface SVGSwitchElement extends SVGElement {}
interface SVGSymbolElement extends SVGElement {}
interface SVGTextElement extends SVGElement {}
interface SVGTextPathElement extends SVGElement {}
interface SVGTSpanElement extends SVGElement {}
interface SVGUseElement extends SVGElement {}
interface SVGViewElement extends SVGElement {}

fetch.d.ts

/////////////////////////////
/// Fetch API
/////////////////////////////

interface GlobalFetch {
  fetch(input: RequestInfo, init?: RequestInit): Promise<Response>;
}

declare function fetch(input: RequestInfo, init?: RequestInit): Promise<Response>;

interface Body {
  readonly bodyUsed: boolean;
  arrayBuffer(): Promise<ArrayBuffer>;
  json(): Promise<any>;
  text(): Promise<string>;
}

interface Headers {
  append(name: string, value: string): void;
  delete(name: string): void;
  get(name: string): string | null;
  has(name: string): boolean;
  set(name: string, value: string): void;
}

declare var Headers: {
  prototype: Headers;
  new(init?: any): Headers;
};

interface RequestInit {
  body?: any;
  cache?: RequestCache;
  credentials?: RequestCredentials;
  headers?: any;
  integrity?: string;
  keepalive?: boolean;
  method?: string;
  mode?: RequestMode;
  redirect?: RequestRedirect;
  referrer?: string;
  referrerPolicy?: ReferrerPolicy;
  window?: any;
}

interface Request extends Object, Body {
  readonly cache: RequestCache;
  readonly credentials: RequestCredentials;
  readonly destination: RequestDestination;
  readonly headers: Headers;
  readonly integrity: string;
  readonly keepalive: boolean;
  readonly method: string;
  readonly mode: RequestMode;
  readonly redirect: RequestRedirect;
  readonly referrer: string;
  readonly referrerPolicy: ReferrerPolicy;
  readonly type: RequestType;
  readonly url: string;
  clone(): Request;
}

declare var Request: {
  prototype: Request;
  new(input: Request | string, init?: RequestInit): Request;
};

interface ResponseInit {
  headers?: any;
  status?: number;
  statusText?: string;
}

interface Response extends Object, Body {
  readonly headers: Headers;
  readonly ok: boolean;
  readonly status: number;
  readonly statusText: string;
  readonly type: ResponseType;
  readonly url: string;
  clone(): Response;
}

declare var Response: {
  prototype: Response;
  new(body?: any, init?: ResponseInit): Response;
  error: () => Response;
  redirect: (url: string, status?: number) => Response;
};

type RequestInfo = Request | string;

type ReferrerPolicy = "" | "no-referrer" | "no-referrer-when-downgrade" | "origin-only" | "origin-when-cross-origin" | "unsafe-url";
type RequestCache = "default" | "no-store" | "reload" | "no-cache" | "force-cache";
type RequestCredentials = "omit" | "same-origin" | "include";
type RequestDestination = "" | "document" | "sharedworker" | "subresource" | "unknown" | "worker";
type RequestMode = "navigate" | "same-origin" | "no-cors" | "cors";
type RequestRedirect = "follow" | "error" | "manual";
type RequestType = "" | "audio" | "font" | "image" | "script" | "style" | "track" | "video";
type ResponseType = "basic" | "cors" | "default" | "error" | "opaque" | "opaqueredirect";

One note about fetch.d.ts. TypeScript 2.5 fixed the any used for the Headers constructor and property, so these types need to be updated to match whichever version of TypeScript the project uses.