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DataFlex

Configure OAuth 1.0a Authentication for REST

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Demonstrates Rest.SetAuthOAuth1, which associates an OAuth1 provider so Chilkat computes the OAuth 1.0/1.0a signature for each request. The second argument selects whether OAuth parameters are placed in the query string or the Authorization header.

Background. OAuth 1.0a signs each request using the consumer key/secret and the access token/secret. Chilkat generates the nonce, timestamp, and signature automatically for every request sent through the object.

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DataFlex
Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoRest
    Boolean iBTls
    Boolean iBAutoReconnect
    Variant vOauth1
    Handle hoOauth1
    Boolean iBUseQueryParams
    String sResponseText
    String sTemp1
    Boolean bTemp1

    Move False To iSuccess

    Get Create (RefClass(cComChilkatRest)) To hoRest
    If (Not(IsComObjectCreated(hoRest))) Begin
        Send CreateComObject of hoRest
    End
    Move True To iBTls
    Move True To iBAutoReconnect
    Get ComConnect Of hoRest "example.com" 443 iBTls iBAutoReconnect To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoRest To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    //  Configure OAuth 1.0a request signing.  Provide the consumer credentials and the access token
    //  credentials; Chilkat computes the OAuth signature for each request.
    Get Create (RefClass(cComChilkatOAuth1)) To hoOauth1
    If (Not(IsComObjectCreated(hoOauth1))) Begin
        Send CreateComObject of hoOauth1
    End
    //  Normally you would not hard-code secrets in source.  You should instead obtain them from an
    //  interactive prompt, environment variable, or a secrets vault.
    Set ComConsumerKey Of hoOauth1 To "CONSUMER_KEY"
    Set ComConsumerSecret Of hoOauth1 To "CONSUMER_SECRET"
    Set ComToken Of hoOauth1 To "ACCESS_TOKEN"
    Set ComTokenSecret Of hoOauth1 To "ACCESS_TOKEN_SECRET"
    Set ComSignatureMethod Of hoOauth1 To "HMAC-SHA1"

    //  The 2nd argument selects whether OAuth parameters are placed in the query string (True) or the
    //  Authorization header (False).
    Move False To iBUseQueryParams
    Get pvComObject of hoOauth1 to vOauth1
    Get ComSetAuthOAuth1 Of hoRest vOauth1 iBUseQueryParams To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoRest To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get ComFullRequestNoBody Of hoRest "GET" "/api/resource" To sResponseText
    Get ComLastMethodSuccess Of hoRest To bTemp1
    If (bTemp1 = False) Begin
        Get ComLastErrorText Of hoRest To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Showln sResponseText


End_Procedure