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Version: 13.7.x (Current)

API Portal Configuration

The API Portal microservice can be added to your project by visiting Mia-Platform Marketplace. It works best with the Swagger Aggregator but it's possible to use it with a custom microservice if the correct data are returned.

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You can select the API Documentation application on the Marketplace to have a ready-to-use API Portal that works with the Swagger Aggregator microservice.

Routes​

The API Portal requires to expose two routes: /api/openapi/, /api/openapi/raw/

The main endpoints are:

  • /api/openapi/json: it expects a compliant Open API specification document. All versions are supported;

  • /api/openapi/subswaggers/: it expects an array of objects like [{"name": "<subswagger-name>", "categoryUrl": "<subswagger-url>"}]. The categoryUrl is joined, using path.join, with /api/openapi/json. To understand what is a subswagger, please see this page.

The endpoints regarding the downloads are:

  • /api/openapi/raw/swagger/json and /api/openapi/raw/swagger/yaml: it expects a Open API v2 (swagger) object in json and yaml format respectively

  • /api/openapi/raw/openapi/v3/json and /api/openapi/raw/openapi/v3/yaml: it expects a Open API v3 object in json and yaml format respectively

  • /api/openapi/raw/openapi/v3-1/json and /api/openapi/raw/openapi/v3-1/yaml: it expects a Open API v3.1 object in json and yaml format respectively

When a category is selected, it calls all the paths above, except for the subswaggers endpoint, joined with the corresponding categoryUrl. For example, if the selected category has categoryUrl = ../category1.json, the routes called will be:

  • /api/openapi/category1.json
  • /api/openapi/raw/swagger/category1.json and /api/openapi/raw/swagger/category1.json/yaml
  • /api/openapi/raw/openapi/v3/category1.json and /api/openapi/raw/openapi/v3/category1.json/yaml
  • /api/openapi/raw/openapi/v3-1/category1.json and /api/openapi/raw/openapi/v3-1/category1.json/yaml

Every time /api/openapi/json is called, the API Portal also calls GET /api/openapi/raw/ui-config to retrieve an optional UI configuration object (the call is allowed to fail). At the moment, the object should have only one optional property oauthConfig which should be and object containing a swagger-ui OAuth 2.0 configuration.

In addiction to these required endpoints, there is the /documentations/api-portal/config endpoint that expects a json with an apiPrefix, such as:

{ "apiPrefix": "/custom-prefix" }

This prefix replaces the /api of every route. So, following the example, every /api/openapi/... will become /custom-prefix/openapi/....

Environment variables​

The API Portal accepts the following environment variables:

  • HTTP_PORT (default: 8080): defines the http port to use

How to migrate to v2​

To migrate from the v1.16.14, you can update the service and the Swagger Aggregator or remove it and use only the Swagger Aggregator.

Whichever option you choose, the first two things to do are:

  1. Make sure to update the Swagger Aggregator microservice to a compatible version (3.6.0 or above).
  2. Remove the following endpoints:
    • /documentations/api-portal/api/openapi/v3
    • /documentations/api-portal/api
    • /documentations/openapi
    • /documentations/swagger

Now you can follow one of the two tutorials below to configure the new API Portal.

How to configure​

Stand-alone API Portal​

To configure the stand-alone API Portal, make sure to have the latest Swagger Aggregator and the latest API Portal. Now you have to configure the needed endpoints:

  1. Add the following endpoints:

    • Endpoint 1:
      • Base path: /api/openapi
      • Type: Microservice
      • Microservice: swagger-aggregator
      • Rewrite base path: it depends on the documentation version you want to see.
        • /openapi/v3-1 for Open API v3.1
        • /openapi/v3 for Open API v3.0
        • /openapi/v2 for Swagger v2
    • Endpoint 2:
      • Base path: /api/openapi/raw
      • Type: Microservice
      • Microservice: swagger-aggregator
      • Rewrite base path: /

  2. Add the /documentations/api-portal endpoint with the following configuration:

    • Type: Microservice
    • Microservice: api-portal
    • Rewrite base path: /

    This is the endpoint from which the API Portal is reachable, you can change it and name it as you like.

Embedded API Portal​

It's possible to use the Swagger Aggregator microservice to serve the API Portal without the need of the API Portal.

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This option is available only with Swagger Aggregator v3.7.0 or above.

Once you have the Swagger Aggregator, you can configure the needed endpoints:

  1. Add the following endpoints:

    • Endpoint 1:
      • Base path: /api/openapi
      • Type: Microservice
      • Microservice: swagger-aggregator
      • Rewrite base path: it depends on the documentation version you want to see.
        • /openapi/v3-1 for Open API v3.1
        • /openapi/v3 for Open API v3.0
        • /openapi/v2 for Swagger v2
    • Endpoint 2:
      • Base path: /api/openapi/raw
      • Type: Microservice
      • Microservice: swagger-aggregator
      • Rewrite base path: /

  2. Add /documentations/api-portal with the following configuration:

    • Type: Microservice
    • Microservice: swagger-aggregator
    • Rewrite base path: /swagger

    This is the endpoint from which the API Portal is reachable, you can change it and name it as you like.

Reroute endpoints on a custom endpoint​

If you need to change the endpoints, for example because you need to expose many API Portal or you have a gateway that redirects requests based on a certain prefix, you have to configure the Swagger Aggregator (read how to here) and configure the correct endpoints:

  1. Add /documentations/api-portal/config with the following configuration:

    • Type: Microservice
    • Microservice: swagger-aggregator
    • Rewrite base path: /api-portal/config

    /documentations/api-portal is the url from which the API Portal is reachable, so it depends on the url you use.

  2. Add the following endpoints:

    • Endpoint 1:
      • Base path: /your-custom-prefix/openapi
      • Type: Microservice
      • Microservice: swagger-aggregator
      • Rewrite base path: it depends on the documentation version you want to see.
        • /openapi/v3-1 for Open API v3.1
        • /openapi/v3 for Open API v3.0
        • /openapi/v2 for Swagger v2
    • Endpoint 2:
      • Base path: /your-custom-prefix/openapi/raw
      • Type: Microservice
      • Microservice: swagger-aggregator
      • Rewrite base path: /

  3. Delete /api/openapi and /api/openapi/raw endpoints if you have already configured them.

Customize logo and/or favicon​

Here you can read how to customize the logo and/or the favicon of the API Portal

FAQs​

You can find some FAQs about Swagger Aggregator and API Portal at this link.