我正在使用Apigee BaaS。从UI,即apigee.com/appservices,我可以使用JSON数组同时创建多个实体。例如,json数组在集合/雇员上创建了三个实体。
[
{
"name": "John",
"employeeId": "1"
},
{
"name": "Doe",
"employeeId": "2"
},
{
"name": "Danny",
"employeeId": "3"
}
]
现在我尝试使用nodeJs SDK模拟相同的内容 - https://github.com/usergrid/usergrid/tree/master/sdks/nodejs
client.createEntity(options, function(err, entity) {
if (err) {
//error - entity not created
} else {
//set is additive, so previously set properties are not overwritten
entity.set(entityJsonArr);
//finally, call save on the object to save it back to the database
entity.save(function(err) {
if (err) {
//error - entity not saved
console.log('failure');
} else {
//success - new entity is saved
console.log('success');
}
});
}
});
这无助于同时创建多个实体。方法createCollection创建一个集合,而不一定是一堆实体。有人可以帮我这个吗?
或者我应该继续使用请求并在Apigee BaaS上发布HTTP帖子?在那种情况下,我不会使用sdk。
答案 0 :(得分:2)
你是对的,现有的Node SDK不能处理这种情况。如果您需要并且对您有用,我现在使用以下猴子补丁来解决这个问题:
var Usergrid = require('usergrid');
Usergrid.client.prototype.batchCreate = function (type, entities, callback) {
if (!entities.length) { callback(); }
var data = _.map(entities, function(entity) {
var data = (entity instanceof Usergrid.entity) ? entity.get() : entity;
return _.omit(data, 'metadata', 'created', 'modified', 'type', 'activated');
});
var options = {
method: 'POST',
endpoint: type,
body: data
};
var self = this;
this.request(options, function (err, data) {
if (err && self.logging) {
console.log('could not save entities');
if (typeof(callback) === 'function') { callback(err, data); }
return;
}
var entities = _.map(data.entities, function(data) {
var options = {
type: type,
client: self,
uuid: data.uuid,
data: data || {}
};
var entity = new Usergrid.entity(options);
entity._json = JSON.stringify(options.data, null, 2);
return entity;
});
if (typeof(callback) === 'function') {
return callback(err, entities);
}
});
};