回送4控制器调用另一个服务代理并将其传递给模型

问题描述

我正在使用Loopback 4，并且试图通过模型传递一个API调用另一个API。

我能够将简单的东西（例如数字和字符串）传递给我正在创建的另一个API，但是我无法实例化MODEL，设置值并将其传递给API。我收到422“无法处理的实体”错误。

我的服务：

...

export interface SpendingLimitProxy {
  subscriberSpendingLImits(wtfBody: SubscriberSpendingLimitsRequest): Promise<Response>;
}

...

我的数据源：

...

const config = {
  name: 'spendingLimitProxy',connector: 'rest',debug: true,options: {
    strictSSL: false,headers: {
      accept: 'application/json',"content-type": 'application/json',}
  },operations: [
    {
      template: {
        method: "POST",url: 'http://[::1]:3002/subscriberSpendingLimits/',fullResponse: true,body: {
          wtfBody: '{wtfBody:SubscriberSpendingLimitsResponse}',}
      },functions: {
        subscriberSpendingLimits: ['wtfBody'],}
    }
  ]
};

我的api控制器

...

@post('/subscriberSpendingLimits/',{
    responses: {
      '200': SSL_RESPONSE,},})
  async subscriberSpendingLimits(@requestBody({
    content: {
      'application/json': {
        schema: {
          $ref: '#/components/schemas/SubscriberSpendingLimitsRequest',description: 'The request Body.',}) _requestBody: SubscriberSpendingLimitsRequest): Promise<unkNown> {

    const sslRequest = new SubscriberSpendingLimitsRequest;
    sslRequest.amount = _requestBody.amount;
    sslRequest.mdn = _requestBody.mdn;

    console.log("Finding a spending Limit to return");
    console.log("MDN " + sslRequest.mdn);
    console.log("amount " + sslRequest.amount);


    //Logic for a subscriber look up

    return {
      amount: sslRequest.amount,status: 'WTLB4',statusMessage: 'What the Loopback 4 ' + sslRequest.mdn,headers: Object.assign({},this.req.headers),};

  };

...

主控制器

...

const wtfBody = new SubscriberSpendingLimitsRequest;

wtfBody.accountId = '987654321';
wtfBody.amount = 100;
wtfBody.mdn = 123456789;
wtfBody.transactionId = this._transactionId;

 {
   mdn: 123456789,amount: 100,transactionId: this._transactionId,accountId: '987654321',};

const spendingLimitProxyResponse = await this.spendingLimitProxy.subscriberSpendingLimitsw(wtfBody);

...

解决方法

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