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(Go) Xero API through an HTTP ProxyThis example demonstrates connecting through an HTTP proxy w/ 2-legged OAuth for a Xero private application. This example requires Chilkat v9.5.0.64 or later
// This example requires Chilkat v9.5.0.64 or later // This sample code would typically be placed in a subroutine or function // where the rest object is passed by reference. // It does the OAuth1 setup and makes the initial connection. rest := chilkat.NewRest() // Connect to the Xero server through an HTTP proxy, and then tell the REST object // to use the socket connection. socket := chilkat.NewSocket() // Set the HTTP proxy domain or IP address, and port. socket.SetHttpProxyHostname("192.168.1.100") socket.SetHttpProxyPort(8088) // Connect through the HTTP proxy.. bTls := true port := 443 maxWaitMs := 5000 success := socket.Connect("api.xero.com",port,bTls,maxWaitMs) if success != true { fmt.Println("Connect Failure Error Code: ", socket.ConnectFailReason()) fmt.Println(socket.LastErrorText()) rest.DisposeRest() socket.DisposeSocket() return } // Use the HTTP proxied TLS connection: success = rest.UseConnection(socket,true) if success != true { fmt.Println(rest.LastErrorText()) rest.DisposeRest() socket.DisposeSocket() return } // OK, we're connected. // The UseConnection method has an internal reference to the underlying/internal socket. // The application can does not need to keep its socket object in existence. // ----------------------------------------------------------------- // Now setup the OAuth1 authenticator.. consumerKey := "XERO_PRIVATE_APP_KEY" consumerSecret := "XERO_PRIVATE_APP_SECRET" // Let's get our private key from our PFX (password protected), or the PEM (unprotected). // You can decide which to use. Either is OK, although I would recommend keeping your // private keys in a PFX and not in an unprotected PEM. pfx := chilkat.NewPfx() success = pfx.LoadPfxFile("qa_data/certs/xero_private_app/public_privatekey.pfx","PFX_PASSWORD") if success != true { fmt.Println(pfx.LastErrorText()) rest.DisposeRest() socket.DisposeSocket() pfx.DisposePfx() return } privKeyFromPfx := pfx.GetPrivateKey(0) if pfx.LastMethodSuccess() != true { fmt.Println(pfx.LastErrorText()) rest.DisposeRest() socket.DisposeSocket() pfx.DisposePfx() return } // Or we can load from a PEM.. privKeyFromPem := chilkat.NewPrivateKey() success = privKeyFromPem.LoadPemFile("qa_data/certs/xero_private_app/privatekey.pem") if success != true { fmt.Println(privKeyFromPem.LastErrorText()) rest.DisposeRest() socket.DisposeSocket() pfx.DisposePfx() privKeyFromPem.DisposePrivateKey() return } // Note: There are many other means for loading a private key, including // from other formats and directly from memory (i.e. not file-based). oauth1 := chilkat.NewOAuth1() oauth1.SetConsumerKey(consumerKey) oauth1.SetConsumerSecret(consumerSecret) oauth1.SetToken(consumerKey) oauth1.SetTokenSecret(consumerSecret) oauth1.SetSignatureMethod("RSA-SHA1") oauth1.SetRsaKey(privKeyFromPfx) privKeyFromPfx.DisposePrivateKey() // Install the OAuth1 authenticator. rest.SetAuthOAuth1(oauth1,false) fmt.Println("OK, the Xero OAuth1 is initialized and the REST object is ready to make REST API calls..") // ----------------------------------------------------------------- // Make a call to verify that OAuth1 through an HTTP proxy works.. // Get the full list of contacts. sbXml := chilkat.NewStringBuilder() success = rest.FullRequestNoBodySb("GET","/api.xro/2.0/Contacts",sbXml) if success != true { fmt.Println(rest.LastErrorText()) rest.DisposeRest() socket.DisposeSocket() pfx.DisposePfx() privKeyFromPem.DisposePrivateKey() oauth1.DisposeOAuth1() sbXml.DisposeStringBuilder() return } // A 200 response is expected for actual success. if rest.ResponseStatusCode() != 200 { fmt.Println(*sbXml.GetAsString()) rest.DisposeRest() socket.DisposeSocket() pfx.DisposePfx() privKeyFromPem.DisposePrivateKey() oauth1.DisposeOAuth1() sbXml.DisposeStringBuilder() return } // Iterate over the contacts.. bAutoTrim := false xml := chilkat.NewXml() xml.LoadSb(sbXml,bAutoTrim) xml.SaveXml("qa_cache/xero_contacts.xml") // How many records exist? recordCount := xml.NumChildrenAt("Contacts") fmt.Println("numRecords = ", recordCount) i := 0 for i < recordCount { xml.SetI(i) fmt.Println("ContactID: ", *xml.GetChildContent("Contacts|Contact[i]|ContactID")) i = i + 1 } rest.DisposeRest() socket.DisposeSocket() pfx.DisposePfx() privKeyFromPem.DisposePrivateKey() oauth1.DisposeOAuth1() sbXml.DisposeStringBuilder() xml.DisposeXml() |
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