我正在努力解决.post有效负载并获得400错误"该请求不包含有效的记录集。"我想发布到Postgres数据库。这是我发送到服务器的有效负载。它是JSON格式的字符串。它被拒绝了。我是REST的一个菜鸟,学习JS,Angular等等。
{"resource":[{"first_name":"John","last_name":"Johnson","main_skill_title":"Application developer - frontend","main_skills":"Angular,JavaScript",,"country":"United States","email":"j@j.com"}]}
网址设置为DreamFactory中间件在其API文档中推荐,在这种情况下,控制台中显示错误消息:
http://localhost:8080/api/v2/pfpsql/_table/members 400 (Bad Request)
DreamFactory中间件为Angular 2提供了示例,但它们大多是在Angular开发的RC阶段编写的,并且过时了。此外,代码不遵循样式指南。
我用.get成功了。此代码工作正常,并使用我手动输入数据库的数据填充Angular Material2 DataTable。
在组件中获取:
constructor(private http: HttpClient) {}
ngAfterViewInit() {
this.membersAdminService = new MembersAdminService(this.http);
// This is for the Material2 DataTable.
Observable.merge(this.paginator.page)
.startWith(null) // Delete this and no data is downloaded.
.switchMap(() => {
return this.membersAdminService.getMembers(
this.paginator.pageIndex);
})
.map(data => {
return data.resource; // Change from json to array data.
})
.subscribe(data => {
this.dataLength = data.length;
this.dataSource.data = data;
});
}
获得服务:
constructor(
private http: HttpClient,
) { }
public getMembers(page: number): Observable<DfApi> {
return this.http.get<DfApi>(this.baseUrl, {headers: this.headers});
}
问题是.post的有效负载。我已经使用这个代码作为基础并尝试了各种来源的各种Observable操作符和HttpClient建议,但没有添加成员到db。我明显走错了路,但在哪里?此代码中的数据包列在本文开头。
服务中的POST:
public addMember(memberData) {
this.http.post(this.baseUrl, memberData, {headers: this.headers})
组件中的POST:
save(addMemberForm) {
const enteredData = this.addMemberForm.addEditMemberForm.value;
const memberData = JSON.stringify(enteredData);
const jsonData = '{"resource": [' + memberData + ']}';
this.membersAdminService.addMember(jsonData);
}
答案 0 :(得分:0)
我需要使用JSON.parse将数据放入数组格式中。 json字符串未被接受。我还有一些其他数据库设置问题需要解决。我不能忘记Postgres喜欢snake case,first_name,而不是camel case,firstName。但是,我不认为这段代码应该如此简洁。它看起来像一个黑客。我对其他建议非常开放!
save(addMemberForm) {
const enteredData = this.addMemberForm.addEditMemberForm.value;
// Result is JS object
const memberData = JSON.stringify(enteredData);
// Result is a string instead.
const jsonData = '{"resource": [' + memberData + ']}';
// Result is a string in JSON format in DreamFactory required format with {"resource": [
const jsonArray = JSON.parse(jsonData);
// Result is an array in JSON format.
this.membersAdminService.addMember(jsonArray); // I should be subscribing here, not in the service.
addMemberForm.addEditMemberForm.reset();
this.success();
}