@hot-updater/react-native/lib/module/fetchUpdateInfo.js

React Native OTA solution for self-hosted

"use strict";

function buildRequestHeaders(params, requestHeaders) {
  const updateStrategy = params.fingerprintHash ? "fingerprint" : "appVersion";
  return {
    "Content-Type": "application/json",
    "x-app-platform": params.platform,
    "x-bundle-id": params.bundleId,
    ...(updateStrategy === "fingerprint" ? {
      "x-fingerprint-hash": params.fingerprintHash
    } : {
      "x-app-version": params.appVersion
    }),
    ...(params.minBundleId && {
      "x-min-bundle-id": params.minBundleId
    }),
    ...(params.channel && {
      "x-channel": params.channel
    }),
    ...(requestHeaders ?? {})
  };
}
async function resolveSource(source, params) {
  if (typeof source !== "function") {
    return {
      url: source
    };
  }
  const result = source(params);
  if (typeof result === "string") {
    return {
      url: result
    };
  }
  return {
    info: await result
  };
}
export const fetchUpdateInfo = async ({
  source,
  params,
  requestHeaders,
  onError,
  requestTimeout = 5000
}) => {
  try {
    const resolvedSource = await resolveSource(source, params);
    if ("info" in resolvedSource) {
      return resolvedSource.info;
    }
    const controller = new AbortController();
    const timeoutId = setTimeout(() => {
      controller.abort();
    }, requestTimeout);
    const headers = buildRequestHeaders(params, requestHeaders);
    const response = await fetch(resolvedSource.url, {
      signal: controller.signal,
      headers
    });
    clearTimeout(timeoutId);
    if (response.status !== 200) {
      throw new Error(response.statusText);
    }
    return response.json();
  } catch (error) {
    if (error.name === "AbortError") {
      onError?.(new Error("Request timed out"));
    } else {
      onError?.(error);
    }
    return null;
  }
};
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