Go

SharePoint OAuth2 Client Credentials Authentication

Demonstrates how to authenticate with OAuth 2.0 using the client credentials grant type. This is for SharePoint Online which is the cloud-based service provided by Microsoft as part of Office 365. (Users access SharePoint Online through a web browser, and the service is hosted on Microsoft's servers.) Go

    success := false

    // This requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    http := chilkat.NewHttp()

    // Provide the information needed for Chilkat to automatically fetch the OAuth2.0 
    // access token as needed.
    jsonOAuthCC := chilkat.NewJsonObject()

    // --------------------------------------------------------------------------------------------------------
    // You'll need to have registered an app in Azure beforehand.
    // See How to Create SharePoint App Registration for OAuth 2.0 Client Credentials
    // --------------------------------------------------------------------------------------------------------

    // Use the values from your App Registration in Azure.
    jsonOAuthCC.UpdateString("client_id","CLIENT_ID")
    jsonOAuthCC.UpdateString("client_secret","SECRET_VALUE")

    // You'll always use this scope for client credentials, because the allowed actions
    // are determined by the App Permissions defined when you registered the app in Azure.
    jsonOAuthCC.UpdateString("scope","https://graph.microsoft.com/.default")

    // The token endpoint includes your tenant ID. 
    jsonOAuthCC.UpdateString("token_endpoint","https://login.microsoftonline.com/TENANT_ID/oauth2/v2.0/token")

    // Provide the OAuth2 information. Chilkat will use this information to automatically fetch the OAuth2 access token as needed,
    http.SetAuthToken(jsonOAuthCC.Emit())

    // Get information about all SharePoint sites.
    sbJson := chilkat.NewStringBuilder()
    success = http.QuickGetSb("https://graph.microsoft.com/v1.0/sites/getAllSites",sbJson)
    if success == false {
        fmt.Println(http.LastErrorText())
        http.DisposeHttp()
        jsonOAuthCC.DisposeJsonObject()
        sbJson.DisposeStringBuilder()
        return
    }

    statusCode := http.LastStatus()

    fmt.Println("Response status code = ", statusCode)

    if statusCode != 200 {
        fmt.Println(*sbJson.GetAsString())
        fmt.Println("Failed.")
        http.DisposeHttp()
        jsonOAuthCC.DisposeJsonObject()
        sbJson.DisposeStringBuilder()
        return
    }

    jsonResp := chilkat.NewJsonObject()
    jsonResp.LoadSb(sbJson)
    jsonResp.SetEmitCompact(false)

    fmt.Println(*jsonResp.Emit())
    fmt.Println("Success.")

    // Use this online tool to generate parsing code from sample JSON: 
    // Generate Parsing Code from JSON

    http.DisposeHttp()
    jsonOAuthCC.DisposeJsonObject()
    sbJson.DisposeStringBuilder()
    jsonResp.DisposeJsonObject()