因此,我想使用云功能将请求从我的应用程序发送到Firebase,然后处理进程url并从place api发送回JSON文件
我已经完成/已经完成的工作>在控制台中设置项目并获取Firebase CLI之后,按如下方式创建了云功能
在您发表评论后,这是我的全部功能代码:
const functions = require('firebase-functions');
const admin = require('firebase-admin');
admin.initializeApp();
const rp = require('request-promise');
exports.fetch = functions.https.onCall((req, res) => {
const url = req.url + '&key=MY_API_KEY';
var options = {
uri: url, // Automatically parses the JSON string in the response
json: true
};
rp(options)
.then(result => {
console.log('Get response:' + response.statusCode);
return res.type('application/json').send(result);
}).catch(err => {
// API call failed...
return res.send({'Error': err});
});
})
在java类中传递这样的值
private Task<String> addMessage(String url) {
// Create the arguments to the callable function.
Map<String, Object> data = new HashMap<>();
data.put("url", url);///PASSING VALUES HERE
return mFunctions
.getHttpsCallable("fetch")
.call(data)
.continueWith(task ->
(String) Objects.requireNonNull(task.getResult()).getData());
}
现在,我的问题是在使用Firebase CLI部署新功能代码时16:8 error Each then() should return a value or throw promise/always-return
,出现错误
谁能指导我..,
URL将是这样的:
https://maps.googleapis.com/maps/api/place/nearbysearch/json?location=17.4369681,78.4473887&radius=5000&type=airport&sensor=true&key=MY_KEY
这是来自控制台的日志详细信息
2019-07-05T10:06:35.025308453Z D fetch: Function execution started
2019-07-05T10:06:35.265840608Z D fetch: Function execution took 241 ms, finished with status code: 200
2019-07-05T10:06:45.162Z I fetch: Get response:undefined
2019-07-05T10:06:46.062Z E fetch: Unhandled rejection
2019-07-05T10:06:46.062Z E fetch: TypeError: res.send is not a function
at rp.then.catch.err (/srv/index.js:22:14)
at bound (domain.js:301:14)
at runBound (domain.js:314:12)
at tryCatcher (/srv/node_modules/bluebird/js/release/util.js:16:23)
at Promise._settlePromiseFromHandler (/srv/node_modules/bluebird/js/release/promise.js:517:31)
at Promise._settlePromise (/srv/node_modules/bluebird/js/release/promise.js:574:18)
at Promise._settlePromise0 (/srv/node_modules/bluebird/js/release/promise.js:619:10)
at Promise._settlePromises (/srv/node_modules/bluebird/js/release/promise.js:695:18)
at _drainQueueStep (/srv/node_modules/bluebird/js/release/async.js:138:12)
at _drainQueue (/srv/node_modules/bluebird/js/release/async.js:131:9)
at Async._drainQueues (/srv/node_modules/bluebird/js/release/async.js:147:5)
at Immediate.Async.drainQueues (/srv/node_modules/bluebird/js/release/async.js:17:14)
at runCallback (timers.js:810:20)
at tryOnImmediate (timers.js:768:5)
at processImmediate [as _immediateCallback] (timers.js:745:5)
这对我有用。在promise之前使用return返回promise的结果,并且在使用return
时functions.https.onCall
和使用时,我们需要res.send
使用functions.https.onRequest
它花了我三天的时间,并且不需要json=true
在URL返回json时添加请求承诺选项,这使事情变得复杂
const functions = require('firebase-functions');
const admin = require('firebase-admin');
admin.initializeApp();
const rp = require('request-promise');
exports.fetch = functions.https.onCall((req, res) => {
const url = req.url + '&key=MY_API_KEY';
var options = {
uri: url, // Automatically parses the JSON string in the response
};
return rp(options)
.then(result => {
console.log('here is response: ' + result);
return result;
}).catch(err => {
// API call failed...
return err;
});
})
很高兴您找到了解决方案。请注意,使用HTTPS可调用云函数进行错误处理与“标准”云函数的错误处理有所不同,请参阅firebase.google.com/docs/functions/callable#handle_errors