Custom installation page: Error 502 on client.request.invokeTemplate

App Platform
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1

Hi

I’m attempting to get the list of contact fields using the client.request.invokeTemplate method on the installation page.

Here is the code I’m calling:

client.request.invokeTemplate("getContactFields",{
          context:{
            domain: THIS.domain,
            api_key: THIS.apikey
          }
  });

And this is the scheme being called:

        "schema":{
            "protocol":"https",
            "method":"GET",
            "host":"<%= context.domain %>",
            "path":"/api/v2/contact_fields",
            "headers": {
                "Authorization": "Basic <%= encode(context.api_key) %>",
                "Content-Type": "application/json"
              }
        }

I’m getting the error “Error in establishing connection” status 502.

I cannot find an explanation for error 502. I’ve tried adding “:X” to the apikey, including and excluding the protocol line in the template.

I’ve also tried passing a base64 encoded version of the apiKey to the template, but got an error message to say invalid datatype.

4

Hey @DaveWP,

Does your custom installation page HTML have the JS client?

<script async src="{{{appclient}}}"></script>
5

Also regarding the context variables,

context:{
            domain: THIS.domain,
            api_key: THIS.apikey
          }

Can you confirm if THIS.domain or THIS.apikey has the respective values?

6

It is does have the expected values, and the code does include the correct script to the Freshdesk library.

Requests work if I use Curl or Excel to make the request.

7

Yes! The library is using this reference for the JS Client.

8

Does anyone have a resolution to this issue?

9

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