如何在另一个响应成功完成时触发响应？

Question

我正在从另一个响应的响应数据中获取 link。我怎样才能等待完成这个第一个响应？

    Response responsePostImage =
    await dio.get("responseLink$imgId");
var parsedPostImage = jsonDecode("$responsePostImage");
blogModel.imagePostImage =
    parsedPostImage["media_details"]["sizes"]["medium"]["source_url"];
var parsedPpp = parsedPostImage["_links"]["author"];
blogModel.imagePpUrl = parsedPpp[0]["href"];

 Response responseGetPp = await dio.get(blogModel.imagePp);
  var parsedGetPp = jsonDecode("$responseGetPp");
  blogModel.imagePp = parsedGetPp["avatar_urls"]["48"];
  print(parsedGetPp["avatar_urls"]["48"]);

Answer 1

我想你可以检查http响应成功状态码（200）然后调用下一个api。

Response responsePostImage = await dio.get("responseLink$imgId");

if(responsePostImage.statusCode == 200) {
   var parsedPostImage = jsonDecode("$responsePostImage");
   blogModel.imagePostImage = parsedPostImage["media_details"]["sizes"]["medium"]["source_url"];
   var parsedPpp = parsedPostImage["_links"]["author"];
   blogModel.imagePpUrl = parsedPpp[0]["href"];
    
   Response responseGetPp = await dio.get(blogModel.imagePp);
   if(responseGetPp.statusCode == 200) {
     var parsedGetPp = jsonDecode("$responseGetPp");
     blogModel.imagePp = parsedGetPp["avatar_urls"]["48"];
     print(parsedGetPp["avatar_urls"]["48"]); 
   }
}

如何在另一个响应成功完成时触发响应？

How to trigger a response when another response done successfuly?

flutter

dio