向令牌数组发送 Expo 推送通知

Question

我正在尝试使用来自 api 的令牌数组向多个设备发送推送通知。当我只发送到一个对象时，推送通知会正确发送，但是当我通过一组对象发送时，它会在请求中给出错误 400。

//assembling the array of tokens coming from the api
let tokenArray = [];
this.dataObj.notification_tokens.map((item) => {
  tokenArray.push({
    to: item.push_token,
    sound: "default",
    title: this.dataObj.push_title,
    body: this.dataObj.push_message,
  });
});

//passing the array as a parameter of the Expo Push Notification request. I receive 400 error
 await fetch("https://exp.host/--/api/v2/push/send", {
  mode: "no-cors",
  method: "POST",
  headers: {
    Accept: "application/json",
    "Accept-encoding": "gzip, deflate",
    "Content-Type": "application/json",
  },
  body: JSON.stringify(tokenArray),
}).then((res) => {
  if (res) {
    this.dataObj.push_title = "";
    this.dataObj.push_message = "";
    this.goSuccess("Push Notification sending!");
  }
});

如果我将单个对象作为Expo请求的参数传递，则推送通知正常发送

Answer 1

我找不到使用前端的解决方案，所以我创建了一个端点来通过后端发送推送。所以后端负责所有的批量运输。

const dataObj = {
  sound: "default",
  title: this.dataObj.push_title,
  body: this.dataObj.push_message,
};
await this.$http
  .post(`/push/send-notification`, dataObj)
  .then((response) => {
    if (!response.data.success) {
      this.goError(response.data.message);
    } else {
      this.goSuccess(response.data.message);
      this.dataObj.push_title = "";
      this.dataObj.push_message = "";
    }
  })
  .catch(function (error) {
    console.log(error);
  });