export async function initializeConfiguration()

in src/ConfigContext.ts [195:242]
47 lines of code
15 McCabe index (conditional complexity)

export async function initializeConfiguration(): Promise<ConfigContext> {
  try {
    const response = await fetch("./config.json", {
      headers: {
        "If-None-Match": "", // disable client side cache
      },
    });
    if (response.status === 200) {
      try {
        const { ...externalConfig } = await response.json();
        updateConfigContext(externalConfig);
      } catch (error) {
        console.error("Unable to parse json in config file");
        console.error(error);
      }
    }
    // Allow override of platform value with URL query parameter
    const params = new URLSearchParams(window.location.search);
    if (params.has("armAPIVersion")) {
      const armAPIVersion = params.get("armAPIVersion") || "";
      updateConfigContext({ armAPIVersion });
    }
    if (params.has("armEndpoint")) {
      const ARM_ENDPOINT = params.get("armEndpoint") || "";
      updateConfigContext({ ARM_ENDPOINT });
    }
    if (params.has("aadEndpoint")) {
      const AAD_ENDPOINT = params.get("aadEndpoint") || "";
      updateConfigContext({ AAD_ENDPOINT });
    }
    if (params.has("platform")) {
      const platform = params.get("platform");
      switch (platform) {
        default:
          console.error(`Invalid platform query parameter: ${platform}`);
          break;
        case Platform.Portal:
        case Platform.Fabric:
        case Platform.Hosted:
        case Platform.Emulator:
          updateConfigContext({ platform });
      }
    }
  } catch (error) {
    console.error("No configuration file found using defaults");
  }
  return configContext;
}