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December 28, 2015 11:49
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Node.js CRUD Socket - A reusable pattern I'm testing out to for a socket that handles CRUD actions against a model.
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module.exports = function (socket, handleError, config) { | |
// set some common items we will need from config | |
var route = config.route; | |
var model = config.model; | |
// define the socket behavior | |
socket.on(route, function (data) { | |
switch (data.action) { | |
case 'list': | |
model.find(data.query, function (err, itemList) { | |
if (err) { | |
return handleError(route, err); | |
} | |
var response = { | |
items: itemList | |
}; | |
socket.emit(route + ':list:success', response); | |
}); | |
break; | |
case 'item': | |
model.findOne(data.query, function (err, singleItem) { | |
if (err) { | |
return handleError(route, err); | |
} | |
var response = { | |
items: [singleItem] | |
}; | |
socket.emit(route + ':item:success', response); | |
}); | |
break; | |
case 'create': | |
model.create(data.item, function (err, newItem) { | |
if (err) { | |
return handleError(route, err); | |
} | |
var response = { | |
newItem: newItem | |
}; | |
socket.emit(route + ':create:success', response); | |
}); | |
break; | |
case 'update': | |
model.update(data.query, { $set: data.item}, function (err, updatedItem) { | |
if (err) { | |
return handleError(route, err); | |
} | |
var response = { | |
updatedItem: updatedItem | |
}; | |
socket.emit(route + ':update:success', response); | |
}); | |
break; | |
case 'delete': | |
model.remove(data.query, function (err) { | |
if (err) { | |
return handleError(route, err); | |
} | |
var response = {}; | |
socket.emit(route + ':delete:success', response); | |
}); | |
break; | |
default: | |
err = { | |
message:"available actions are: 'list', 'item', 'create', 'edit', 'delete'." | |
}; | |
handleError(route, err); | |
} | |
}); | |
}; |
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