Clarification regarding endpoint schema

[Vinay C N]

Hi KrakenD Team,

I came across the following configuration in the endpoint_extra_config schema "schema-link"

"modifier/request-body-generator": {
      "$ref": "modifier/body-generator.json"
    }

However, the documentation specifies that the scope for this feature is Backend "doc". Could you please clarify this discrepancy and confirm whether the modifier/request-body-generator can be used in the endpoint_extra_config at the endpoint level or if it is strictly for backend configuration?

Looking forward to your guidance.

Best regards,
Vinay

[Jorge Tarrero]

Hi Vinay,

You're right, the "modifier/request-body-generator" is documented under the "backend" scope, but it's actually also available in the "endpoint" scope as specified in the JSON schema. It seems there's a small inconsistency in the documentation that we’ll double-check.

I can confirm the "modifier/request-body-generator" works at the endpoint level. Here's an example (based on the one in the docs):

{

"endpoint": "/req-generator/{id}",

"method": "POST",

"input_headers": [

"Content-Type"

],

"extra_config": {

"modifier/request-body-generator": {

"path": "./body.json.tmpl",

"content_type": "application/json",

"debug": true

}

},

"backend": [

{

"url_pattern": "/__debug/one/{id}",

"method": "POST",

"encoding": "json",

"host": [

"http://localhost:8080"

]

},

{

"url_pattern": "/__debug/two/{id}",

"method": "POST",

"encoding": "json",

"host": [

"http://localhost:8080"

]

}

]

}

In this example, both of the backends are getting the same body generated at endpoint level.

Thanks for pointing this out, let me know if you have further questions!

Regards,

Jorge

[Vinay C N]

Hi Jorge,

Thank you for the clarification regarding the confusion.. i have few more curios
Opentelemetry schema for endpoint have quite few extra fields when it compared to documentation should i rely on the documentation or the schema. And
I din't find any docs regarding the EE plugins categorised under http-client and http-server,  could you please clarify the plugins category 

[Jorge Tarrero]

Hi Vinay,

As a rule of thumb, you should always rely on the official documentation. In this particular case, there are config options like the global.exporters_override that appear in the schema, but since they are enterprise-only features, they appear in the EE version of the documentation, for example: https://www.krakend.io/docs/enterprise/telemetry/opentelemetry-by-endpoint/#exporters_override 

Regarding the http-client and http-server sections in the schema, there's related documentation here and here . If you need more info about an specific plugin, we do have docs about them too, for example the ip-filtering plugin