[1]:Transport SSL must be enabled if security is enabled on a [basic] license. Please set [xpack.security.transport.ssl.enabled] to [true] or disable security by setting [xpack.security.enabled] to [false]
fetch("users.json").then((users: User[]) => { // you can use users here, and type hinting also will be available to you, // but users are not actually instances of User class // this means that you can't use methods of User class });
fetch("users.json").then((users: Object[]) => { const realUsers = plainToClass(User, users); // now each user in realUsers is instance of User class });
const user = new User(); user.id = 1; user.setName("Johny", "Cage"); user._password = 123;
const plainUser = classToPlain(user, { excludePrefixes: ["_"] }); // here plainUser will be equal to // { id: 1, name: "Johny Cage" }
使用组来控制排除的属性
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import {Exclude, Expose} from "class-transformer";
@Exclude() export class User {
id: number;
name: string;
@Expose({ groups: ["user", "admin"] }) // this means that this data will be exposed only to users and admins email: string;
@Expose({ groups: ["user"] }) // this means that this data will be exposed only to users password: string; }
let user1 = classToPlain(user, { groups: ["user"] }); // will contain id, name, email and password let user2 = classToPlain(user, { groups: ["admin"] }); // will contain id, name and email
import {Exclude, Expose} from "class-transformer";
@Exclude() export class User {
id: number;
name: string;
@Expose({ since: 0.7, until: 1 }) // this means that this property will be exposed for version starting from 0.7 until 1 email: string;
@Expose({ since: 2.1 }) // this means that this property will be exposed for version starting from 2.1 password: string; }
let user1 = classToPlain(user, { version: 0.5 }); // will contain id and name let user2 = classToPlain(user, { version: 0.7 }); // will contain id, name and email let user3 = classToPlain(user, { version: 1 }); // will contain id and name let user4 = classToPlain(user, { version: 2 }); // will contain id and name let user5 = classToPlain(user, { version: 2.1 }); // will contain id, name nad password
/** * result1 will be `{ prop: "1234" }` - notice how the prop value has been converted to string. * result2 will be `{ prop: 1234 }` - default behaviour */
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