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Calling APIs

Updated on 2022-02-21 GMT+08:00

Obtaining APIs and Documentation

Before calling APIs, obtain the request information from the API provider, including the access domain name, protocol, method, path, and request parameters.

Obtain APIs: from your company or from a partner

Obtain related documentation from the help center of the API provider's official website:

The authentication information to be obtained varies with the API authentication mode.

  • App authentication:
    • Signature authentication: Obtain the key and secret (or client AppKey and AppSecret) of the app authorized for the API from the API provider as well as the SDK for calling the API.
    • Simple authentication: Obtain the AppCode of the app authorized for the API from the API provider.
    • Other authentication modes: Obtain the key and secret (or client AppKey and AppSecret) of the app authorized for the API from the API provider.
  • IAM authentication: The account credential (token or AK/SK obtained with the account and password) obtained on the cloud service platform is used for authentication. If the AK/SK is used for authentication, you also need to obtain the SDK from the API provider for calling the API.
  • Custom authentication: Obtain the custom authentication information to be carried in the request parameters from the API provider.
  • None: No authentication information is required.

Calling an API

  1. Set the request path.

    Scenario

    Request Parameter Configuration

    Calling an API with a domain name

    Call the API using the subdomain name allocated to the API group or a domain name bound to the group. No additional configuration is required.

  2. Set the authentication parameters.

    Authentication Mode

    Request Parameter Configuration

    App authentication (with a signature)

    Use the SDK to sign API requests. For details, see section "Calling APIs Through App Authentication" in the Developer Guide.

    App authentication (through simple authentication)

    Add the header parameter X-Apig-AppCode and set the parameter value to the AppCode obtained in Obtaining APIs and Documentation.

    IAM authentication (with a token)

    Obtain a token from the cloud platform and carry the token in API requests for authentication. For details, see section "Token Authentication" in the Developer Guide.

    IAM authentication (with AK/SK)

    Use an SDK to sign API requests. For details, see section "AK/SK Authentication" in the Developer Guide.

    Custom authentication

    Carry authentication information in API request parameters for authentication.

    None

    Call APIs without authentication.

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