Javascript mongodb每10分钟运行一个函数
我在mongodb中有一份文件,如下所示:Javascript mongodb每10分钟运行一个函数,javascript,mongodb,mongoose,Javascript,Mongodb,Mongoose,我在mongodb中有一份文件,如下所示: { id:1, requestType: { "api1": { count:1, firstAttemptTime: 1514360898751.0 }, "api2": { count:4, firstAttemptTime: 1514366897751.0 }
{
id:1,
requestType: {
"api1": {
count:1,
firstAttemptTime: 1514360898751.0
},
"api2": {
count:4,
firstAttemptTime: 1514366897751.0
}
}
}
{
id:1,
requestType: {
"api2": {
count:4,
firstAttemptTime: 1514366897751.0
}
}
}
我想在mongoose中编写一个函数,每10分钟调用一次,根据firstAttemptTime键从requestType中删除一个对象。例如,10分钟后,文件应如下所示:
{
id:1,
requestType: {
"api1": {
count:1,
firstAttemptTime: 1514360898751.0
},
"api2": {
count:4,
firstAttemptTime: 1514366897751.0
}
}
}
{
id:1,
requestType: {
"api2": {
count:4,
firstAttemptTime: 1514366897751.0
}
}
}
似乎您想要删除基于时间戳的数据。在MongoDB中,可以通过为记录设置TTL来实现这一点,这样就不需要定期运行函数。您只需创建TTL索引并指定应该在多少秒后删除文档。有关于此的教程您似乎希望根据时间戳删除数据。在MongoDB中,可以通过为记录设置TTL来实现这一点,这样就不需要定期运行函数。您只需创建TTL索引并指定应该在多少秒后删除文档。有关于这个的教程类似的东西会有用
var mongoose = require('mongoose')
var db = mongoose.createConnection('mongodb://localhost:port/db')
var newSchema = new mongoose.Schema({
id: Number,
requestType: { type: {} },
requestTypeList: { type: [] },
})
var model = db.model('newModel', newSchema)
setTimeout(function(){
model.find({id: 1}, function(err, doc){
// remove requestType properties first keyed value
delete Object.keys(doc.requestType)[0]
// or
// remove requestType property's first value as an Array
delete doc.requestTypeList[0] // I'd recomend because otherwise you'll be left with ever increasing key values like api90000000+ as the first key
doc.save(function(err){
if(!err){
console.log('success :)')
} else {
console.log('oh oh')
}
})
})
}, 600000) // 600000ms == 10 minutes
// es 5 or 6 idk..
setTimeout(()=>{
model.find({id: 1}, (err, doc)=>{
// remove requestType properties first keyed value
delete Object.keys(doc.requestType)[0]
// or
// remove requestType property's first value as an Array
delete doc.requestTypeList[0] // I'd recomend because otherwise you'll be left with ever increasing key values like api90000000+ as the first key
doc.save((err)=>{
if(!err){
console.log('success :)')
} else {
console.log('oh oh')
}
})
})
}, 600000) // 600000ms == 10 minutes
但我认为Priidik的TTL答案可能更可靠像这样的方法会奏效
var mongoose = require('mongoose')
var db = mongoose.createConnection('mongodb://localhost:port/db')
var newSchema = new mongoose.Schema({
id: Number,
requestType: { type: {} },
requestTypeList: { type: [] },
})
var model = db.model('newModel', newSchema)
setTimeout(function(){
model.find({id: 1}, function(err, doc){
// remove requestType properties first keyed value
delete Object.keys(doc.requestType)[0]
// or
// remove requestType property's first value as an Array
delete doc.requestTypeList[0] // I'd recomend because otherwise you'll be left with ever increasing key values like api90000000+ as the first key
doc.save(function(err){
if(!err){
console.log('success :)')
} else {
console.log('oh oh')
}
})
})
}, 600000) // 600000ms == 10 minutes
// es 5 or 6 idk..
setTimeout(()=>{
model.find({id: 1}, (err, doc)=>{
// remove requestType properties first keyed value
delete Object.keys(doc.requestType)[0]
// or
// remove requestType property's first value as an Array
delete doc.requestTypeList[0] // I'd recomend because otherwise you'll be left with ever increasing key values like api90000000+ as the first key
doc.save((err)=>{
if(!err){
console.log('success :)')
} else {
console.log('oh oh')
}
})
})
}, 600000) // 600000ms == 10 minutes
但我认为Priidik的TTL答案可能更可靠我不想删除该文档。我只想删除一个对象的值。从这个示例中,我可以看到id字段也可以位于api1和api2文档中,然后您可以使用这个TTL过期。也许您提供的示例不是您正在使用的完整文档,但我认为您应该尝试创建您的文档和架构,以便在MongoDB中使用TTL expiry和not long running函数。我不想删除该文档。我只想删除一个对象的值。从这个示例中,我可以看到id字段也可以位于api1和api2文档中,然后您可以使用这个TTL过期。也许您提供的示例不是您正在使用的完整文档,但我认为您应该尝试创建您的文档和模式,以便它可以在MongoDB中使用TTL expiry和not long running函数。