Problems connecting to API (Again)

Hi,

Sorry things aren’t working properly, that error is generated by the plugin when it does not get the expected response from Amazon’s servers.

I have quickly hacked together a plugin which will use the amazon-link plugin to do a request and output the raw result from the server to your WordPress User Profile page.

You can download the plugin from here:
amazon-link-test.php

This might give you some clues, try doing it with localisation turned on and turned off.

Paul

Oh! Very nice of you. I will take a look and try to see what is happening. Thanks!

Ok, I added the code to my functions in some test environment.
One in the same domain… And I see the “AMAZON QUERY RESPONSE” on my profile… but nothing else. ??
I tried also in other test domain, locally, where it works (same API keys) and there I see the query, and all.

I am not sure it is giving any response (or even making calls) when the keys could not be validated to begin with. ?? I have the message “AWS Request Failed, please check keys – Error Message: AWS query failed to get a response – try again later.”

Or there is something from my domain blocking the calls? I already started talking with the hosting provider too.

Thanks for all.

Hi Paul!

I am still working on solving this. The plugin didn’t help in my domain. But I tried it in other websites where the connection works and it worked there.

At the end, I installed the Query monitor plugin, so I could see the API call errors.

There I saw two things:
– Amazon link plugin is using http instead of https for the calls. I don’t know if there is any option to change this, I couldn’t find it. (My site works on https).

– The API call gets this answer:

503 Service Unavailable-
HTTP API Transport: curl
DNS Resolution Time: 0,0042
Connection Time: 0,0451
Transfer Start Time (TTFB): 0,1812
Response Size: 355 B
Response Content Type: text/html
IP Address: 52.94.218.55

I used the same query on my browser and it worked. So it must really be something domain or host related. I am working now with the hosting providers to check if there is something there.

Also, I found in other forum, that there are at least two people more experiencing the same problem.

Hi,

If you want you could try editing one of the plugin files to change the requests to use https?

In the file:

wp-content/plugins/amazon-link/include/awsRequest.php

Line 70 contains:

   $request = "https://".$host.$uri."?".$canonicalized_query."&Signature=".$signature;

Simply change the http to https.

Paul

Thanks!

I will take a look. Just to know, I would have to change it again after updating, is it?

Yesterday I activated the cache options from your plugin… And it seems like it is working better now!

I still have to wait and see, because this also happened before that it seemed to work and then stopped working again. If it now works… maybe it is because the plugin makes too fast or too many calls?

Hi,

Yes, Amazon have some pretty low quotas on the AWS service, if you exceed them then it will block further requests for a while. The cache will definitely help with this.

The plugin should only make one call per link/product, so if you have a lot of products on one page then it may struggle. The cache is also important, else every visitor to the site will cause a request to be made.

Paul

• This reply was modified 6 years, 1 month ago by paulstuttard.