Angular4:Http-> HttpClient-requestOptions [英] Angular4: Http -> HttpClient - requestOptions

问题描述

因此，我正在尝试从旧" http迁移到新的httpClient

So, I am trying to migrate from 'old' http to the new httpClient

在http客户端中，我正在服务中使用以下格式:

with the http client I am using this format in my service:

return this.http.get(environment.api+ '.feed.json', requestOptions)

我如何在httpClient中使用它?

how do I use this in httpClient?

尝试了许多thiung ...包括

tried many thiungs... including

return this.http.get(environment.api+ '.feed.json', {params: requestOptions.params})

但出现类型不匹配的情况:(

but getting a type missmatch :(

推荐答案

尝试一下:

const requestOptions = {
  params: new HttpParams()
};

requestOptions.params.set('foo', 'bar');

this.http.get(environment.api+ '.feed.json', requestOptions );

这也是指向文档的链接，其中描述了如何使用标头和URL参数的示例进行操作: HttpClient

Here is also the link to the docs describing how to do that with examples for headers and URL Parameters: HttpClient

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