Check out the Github repository for reproducing this issue Run localhost:3000 to replicate the problem.
In my setup with Meteor 1.4.4.1, I am utilizing the node-celery npm packages on the server side. Upon Meteor initialization, the client automatically invokes the Meteor method estimates.request, leading to the addition of a task in the queue:
client/main.js
Meteor.startup(() => {
Meteor.call('estimates.request', function(err) {
console.log('ok')
})
});
This call triggers the execution of the following Meteor method:
imports/api/Estimates.js
Meteor.methods({
'estimates.request'() {
console.log('estimates.request called');
// Initialize Celery client
var celery = require('node-celery')
var client = celery.createClient({
CELERY_BROKER_URL: 'amqp://192.168.1.26:5672//',
CELERY_RESULT_BACKEND: 'amqp'
});
// Queue task upon connection
client.on('connect', function() {
console.log('connected');
start_latitude = 1.3053947
start_longitude = 103.8273045
client.call('proj.tasks.getPriceEstimates', [start_latitude, start_longitude],
function(result) {
console.log('result: ', result);
client.end();
})
});
}
});
This process results in the following error message:
Exception while invoking method 'estimates.request' TypeError: Cannot read property 'slice' of null
Question: What could be the underlying cause of this error?
Visit the GitHub repository to reproduce and troubleshoot this issue Run localhost:3000 to trigger the problem.