DHIS2 Web Api - using C#

Support - Assistance technique
1

Hi,

Can anyone have an example of an established connection to DHIS2 using C# HttpWebRequest or WebClient methods?

I have written this method and all i get are errors when establishing the connection.

private void ConnectDHIS()

{

string uname = “admin”, pwd = “district”;

string formattedUrl = “https://apps.dhis2.org/demo/dhis-web-commons/security/login.action?authOnly=true”;

string credentials = Convert.ToBase64String(Encoding.ASCII.GetBytes(uname + “:” + pwd));

HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(formattedUrl);

// request.PreAuthenticate = true;

request.Headers[HttpRequestHeader.Authorization] = string.Format(“Basic {0}”, credentials);

// request.Headers[“Authorization”] = "Basic " + credentials;

//request.Headers.Add(“Authorization”,"Basic " + credentials);

HttpWebResponse response = (HttpWebResponse)request.GetResponse();

txtresponse.Text = response.ResponseUri.ToString();

}

The above code does not work even for my own local instance of DHIS2.

Charles.

2

Hi

Why are you making basic auth request to our form login processor? when you are using basic auth, just go directly to the url you want, i.e. /api/dataElements.json

Also, it would be helpful to know exactly which errors you get

···

On Thu, Aug 20, 2015 at 1:41 PM, charles waka charlwak@gmail.com wrote:

Hi,

Can anyone have an example of an established connection to DHIS2 using C# HttpWebRequest or WebClient methods?

I have written this method and all i get are errors when establishing the connection.

private void ConnectDHIS()

{

string uname = “admin”, pwd = “district”;

string formattedUrl = “https://apps.dhis2.org/demo/dhis-web-commons/security/login.action?authOnly=true”;

string credentials = Convert.ToBase64String(Encoding.ASCII.GetBytes(uname + “:” + pwd));

HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(formattedUrl);

// request.PreAuthenticate = true;

request.Headers[HttpRequestHeader.Authorization] = string.Format(“Basic {0}”, credentials);

// request.Headers[“Authorization”] = "Basic " + credentials;

//request.Headers.Add(“Authorization”,"Basic " + credentials);

HttpWebResponse response = (HttpWebResponse)request.GetResponse();

txtresponse.Text = response.ResponseUri.ToString();

}

The above code does not work even for my own local instance of DHIS2.

Charles.

Mailing list: https://launchpad.net/~dhis2-users

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Unsubscribe : https://launchpad.net/~dhis2-users

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–
Morten

3

Hi Charles,

Can you share the error message. I think WebClient it’s easy to use for calling a web API in c#.

Cheers,

···

On Aug 20, 2015 7:41 AM, “charles waka” charlwak@gmail.com wrote:

Hi,

Can anyone have an example of an established connection to DHIS2 using C# HttpWebRequest or WebClient methods?

I have written this method and all i get are errors when establishing the connection.

private void ConnectDHIS()

{

string uname = “admin”, pwd = “district”;

string formattedUrl = “https://apps.dhis2.org/demo/dhis-web-commons/security/login.action?authOnly=true”;

string credentials = Convert.ToBase64String(Encoding.ASCII.GetBytes(uname + “:” + pwd));

HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(formattedUrl);

// request.PreAuthenticate = true;

request.Headers[HttpRequestHeader.Authorization] = string.Format(“Basic {0}”, credentials);

// request.Headers[“Authorization”] = "Basic " + credentials;

//request.Headers.Add(“Authorization”,"Basic " + credentials);

HttpWebResponse response = (HttpWebResponse)request.GetResponse();

txtresponse.Text = response.ResponseUri.ToString();

}

The above code does not work even for my own local instance of DHIS2.

Charles.

Mailing list: https://launchpad.net/~dhis2-users

Post to : dhis2-users@lists.launchpad.net

Unsubscribe : https://launchpad.net/~dhis2-users

More help : https://help.launchpad.net/ListHelp

4

I did some further research based on what Morten had suggested and I can manipulate the data from my end (on the local instance of DHIS2 we have).
Thanks for your help and suggestions.

···

On Thu, Aug 20, 2015 at 10:06 AM, riddy ndoma riddyndoma@gmail.com wrote:

Hi Charles,

Can you share the error message. I think WebClient it’s easy to use for calling a web API in c#.

Cheers,

On Aug 20, 2015 7:41 AM, “charles waka” charlwak@gmail.com wrote:

Hi,

Can anyone have an example of an established connection to DHIS2 using C# HttpWebRequest or WebClient methods?

I have written this method and all i get are errors when establishing the connection.

private void ConnectDHIS()

{

string uname = “admin”, pwd = “district”;

string formattedUrl = “https://apps.dhis2.org/demo/dhis-web-commons/security/login.action?authOnly=true”;

string credentials = Convert.ToBase64String(Encoding.ASCII.GetBytes(uname + “:” + pwd));

HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(formattedUrl);

// request.PreAuthenticate = true;

request.Headers[HttpRequestHeader.Authorization] = string.Format(“Basic {0}”, credentials);

// request.Headers[“Authorization”] = "Basic " + credentials;

//request.Headers.Add(“Authorization”,"Basic " + credentials);

HttpWebResponse response = (HttpWebResponse)request.GetResponse();

txtresponse.Text = response.ResponseUri.ToString();

}

The above code does not work even for my own local instance of DHIS2.

Charles.

Mailing list: https://launchpad.net/~dhis2-users

Post to : dhis2-users@lists.launchpad.net

Unsubscribe : https://launchpad.net/~dhis2-users

More help : https://help.launchpad.net/ListHelp