Trying to use 'Postman' and having trouble setting Basic access authentication Headers

Question

I have an API endpoint that I am trying to test with the google app: \'Postman\'. I need to set the headers which use \'Basic authentication\'. I am not sure what should go

Answer 1

Putting it all together in a pre-request script (and then use the access_token for oauth).

    var Base64={_keyStr:"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",encode:function(e){var t="";var n,r,i,s,o,u,a;var f=0;e=Base64._utf8_encode(e);while(f>2;o=(n&3)<<4|r>>4;u=(r&15)<<2|i>>6;a=i&63;if(isNaN(r)){u=a=64}else if(isNaN(i)){a=64}t=t+this._keyStr.charAt(s)+this._keyStr.charAt(o)+this._keyStr.charAt(u)+this._keyStr.charAt(a)}return t},decode:function(e){var t="";var n,r,i;var s,o,u,a;var f=0;e=e.replace(/[^A-Za-z0-9\+\/\=]/g,"");while(f>4;r=(o&15)<<4|u>>2;i=(u&3)<<6|a;t=t+String.fromCharCode(n);if(u!=64){t=t+String.fromCharCode(r)}if(a!=64){t=t+String.fromCharCode(i)}}t=Base64._utf8_decode(t);return t},_utf8_encode:function(e){e=e.replace(/\r\n/g,"\n");var t="";for(var n=0;n127&&r<2048){t+=String.fromCharCode(r>>6|192);t+=String.fromCharCode(r&63|128)}else{t+=String.fromCharCode(r>>12|224);t+=String.fromCharCode(r>>6&63|128);t+=String.fromCharCode(r&63|128)}}return t},_utf8_decode:function(e){var t="";var n=0;var r=c1=c2=0;while(n191&&r<224){c2=e.charCodeAt(n+1);t+=String.fromCharCode((r&31)<<6|c2&63);n+=2}else{c2=e.charCodeAt(n+1);c3=e.charCodeAt(n+2);t+=String.fromCharCode((r&15)<<12|(c2&63)<<6|c3&63);n+=3}}return t}};

    var userPass = pm.environment.get("oauth_key") + ':' + pm.environment.get("oauth_secret")

    pm.sendRequest({
          url:  pm.environment.get("basepath")+"/oauthpreview/token", 
          method: 'POST',
          header: {
            'Accept': 'application/json',
            'cache-control':"no-cache",
            'Authorization' : 'Basic ' + Base64.encode(userPass),
            'Content-Type': 'application/x-www-form-urlencoded'
          },
          body: {
              mode: 'urlencoded',
              urlencoded: [
                {key: "grant_type", value: "client_credentials", disabled: false}
            ]
          }
      }, function (err, res) {
            pm.environment.set("access_token", res.json().access_token);
      })