Issue with Bluebird.promisify()

Howdy!

Tried promisifying the sendEmailBatch function and it gave me a peculiar error…

I tried using the callback style and it works, but promises are a must-have in my current project.

Here’s the code:

const Promise = require('bluebird');
const postmark = require('postmark');

const client = new postmark.Client(<api_key>);

const messages = []; // array or message objects
const sendEmails = Promise.promisify(client.sendEmailBatch);

return sendEmails(messages);

Unhandled rejection TypeError: this.processRequestWithBody is not a function
at Client.sendEmailBatch (/<project path>/node_modules/postmark/lib/postmark/Client.js:120:14)

[atheken]

We just released 1.4.0 of the library, which includes Promise support. To get Promises back, simply call the same client methods without a callback function. The client methods will return a Promise when the callback function is emitted.

[stringbeans]

as an FYI, this is not an issue with postmark.js but an issue with how you’re using Promise.promisify. You must bind the correct context to the function you are “promisifying”