如何在Node（jsforce）中使用SOAP / REST API创建PushTopic

Question

According to https://salesforce.stackexchange.com/questions/48901/create-streaming-pushtopic-using-rest-api I should be able to use the standard sobject API to create a PushTopic . However when I do so I get an error of

The requested resource does not exist.

In fact, I can't even describe the object.

I am using node and jsforce to test this. I have successfully used the execute anonymous apex code from the developer console to create a topic, but I require it to be done inside of my own server.

My code looks like:

var jsforce = require('jsforce');
var config = {...};
var conn = new jsforce.Connection({
  oauth2 : {
    clientId : config.oauthClientId,
    clientSecret : config.oauthSecret,
    redirectUri : config.oauthCallbackUrl
  },
  instanceUrl : config.instanceUrl,
  accessToken : config.accessToken,
  refreshToken: config.refreshToken
});

conn
  .sobject('PushTopic')
  .describe()
  .then(function(ret){
    console.log('Description:', ret)
  }, function(err){
    console.log('Error:', err)
  });

I Get:

Error { [NOT_FOUND: The requested resource does not exist] name: 'NOT_FOUND', errorCode: 'NOT_FOUND' }

If I use 'Account' instead of 'PushTopic' I get:

Description { actionOverrides: [], activateable: false, childRelationships: ...

Is this a problem with jsforce ? Any ideas appreciated!

Answer 1

Ok. The problem was that my user did not have permissions for the PushTopic object. Even though I can subscribe to the streaming channel that the topic's produce (streaming api enabled), you need additional permissions to create a topic.

Setup -> Manage Users -> Permission Sets -> New -> Save -> Object Settings -> Push Topics -> Edit

Then

Manage Assignments -> Add Assignments

I created a permission set called 'PushTopic_Creator' and only added that permission, and then applied it to my user. I can now describe and create PushTopics!

Answer 2

According to this document supported calls for REST are:

REST: DELETE, GET, PATCH, POST (query requests are specified in the URI)

Together with this, if you check samples in Workbench Streaming API config does not require Salesforce describe() call.