如何使用 "application/vnd.flux" 作为内容类型在飞镖中执行 POST 请求？

Question

我想从 flutter 应用程序查询 influxDB，我正在使用 http 包，但我不介意更改它。这是我当前的代码（此请求在终端上运行良好）：

Response response = await post(
  URL,
  headers: {
    "Authorization": "Token $TOKEN",
    "Accept": "application/csv",
    "Content-type": "application/vnd.flux",
  },
  body: {
    'data': 'from(bucket: "$BUCKET")'
            '|> range(start: -48h)'
            '|> filter(fn: (r) => r._measurement == "location")'
  },
);

但是我得到这个错误：

[ERROR:flutter/lib/ui/ui_dart_state.cc(177)] Unhandled Exception: Bad state: Cannot set the body fields of a Request with content-type "application/vnd.flux".

如何使用 application/vnd.flux 作为 Content-type 从这里发出 POST 请求？

Answer 1

我发现了错误。如果有人有同样的问题，你应该在正文中写查询raw（不带参数data）：

Response response = await post(
  URL,
  headers: {
    "Authorization": "Token $TOKEN",
    "Accept": "application/csv",
    "Content-type": "application/vnd.flux",
  },
  body: {
    'from(bucket: "$BUCKET")'
      '|> range(start: -48h)'
      '|> filter(fn: (r) => r._measurement == "location")'
  },
);

如何使用 "application/vnd.flux" 作为内容类型在飞镖中执行 POST 请求？

How can I use "application/vnd.flux" as content-type to do a POST request in dart?

flutter

http

dart

influxdb