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Thread: oAuth2 and Web Application

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  1. #9
    Join Date
    Mar 2009
    Beech Hill - a village near Reading in the UK

    Default Re: oAuth2 and Web Application

    OK, I've been staring at this for a while. I am not clear whether you are requesting an initial access token or a refresh token.

    I personally don't much like SFormat - I prefer to build up my strings bit by bit where I can see them - however it looks to me as though that might be where the problem is.

    In the docs it says the POST body for requesting an access token should read:"grant_type=authorization_code&code=<authorization_ code>&redirect_uri=<redirect_uri>".

    AFAICS, your line of code: Move (SFormat("grant_type=%1&refresh_token=%2&redirect_ uri=%3", "refresh_token", sRefreshToken, "https://localhost:44300/callback")) to sURL will result in sURL (which would be less confusingly called sBody) being: "grant_type=refresh_token&refresh_token=<sRefreshTo ken>&redirect_uri=https://localhost:44300/callback".

    So this is where I am confused - are you requesting an access token or a refresh token?

    Personally I'd lose the SFormat stuff - from my PoV it just makes things harder to read.

    I'd do:
    String[] asPaths
    String   sBody
    // Assummes sToken already contains the authorization code and that
    // sRedir contains your redirect URL: "https://localhost:44300/callback"
    Move ("grant_type=authorization_code") to asParts[0]
    Move ("code=" + sToken)                to asParts[1]
    Move ("redirect_uri=" * sRedir)        to asParts[2]
    Move (StrJoinFromArray(asParts, "&"))  to sBody
    OTOH if you are actually requesting a refresh token, you need to lose the last bit about the redirect uri, as the doc says that should just be: "grant_type=refresh_token&refresh_token=<refresh_t oken>".

    Last edited by Mike Peat; 5-Apr-2020 at 07:35 AM. Reason: (

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