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~ view task ~ TaskGroup] nodejs FROM [ Plan] planning-project IN [ calendars] technology-developer-www

ID/Title: 5231,TRY-example-error-checking,

Description Task: #### - tutorial with better code example in comments

Calendar: technology-developer-www/planning-project/nodejs

Added By: View Owner ON: 2015-06-04-21:12:26

Start Date: 2015-06-04

Start Time: 17:16:01

Estimated Duration: 01:00:00

Est. Completion Time: 2015-06-04-18:16:01

Status: To-Do

Priority: -5

<h1 style="text-align: center;">title</h1>
<h2>[previously]</h2>
<ol>
<li>] <a href="http://davidwalsh.name/nodejs-http-request" target="_blank">http://davidwalsh.name/nodejs-http-request</a></li>
</ol>
<h2>[currently]</h2>
<ol>
<li>] &nbsp;</li>
</ol>
<h2>[next]</h2>
<ol>
<li>]</li>
</ol>
<p>&nbsp;</p>
<p>my subset</p>
<p>&nbsp;&nbsp; var http = &nbsp;require http</p>
<pre style="background: white; color: black; font-family: Consolas; font-size: 10pt;"><span style="color: #4f76ac;">function</span> getDrivers<span style="color: #1e7c70;">(</span>cb<span style="color: #1e7c70;">)</span> <span style="color: #1e7c70;">{</span>
       http.get<span style="color: #1e7c70;">({</span>
        host<span style="color: #1e7c70;">:</span> <span style="color: #823125;">'sospep.com'</span><span style="color: #1e7c70;">,</span>
        path<span style="color: #1e7c70;">:</span> <span style="color: #823125;">'/qry/'</span>
    <span style="color: #1e7c70;">},</span> <span style="color: #4f76ac;">function</span><span style="color: #1e7c70;">(</span>res<span style="color: #1e7c70;">)</span> <span style="color: #1e7c70;">{</span>
        <span style="color: #46830d;">// explicitly treat incoming data as utf8 (avoids issues with multi-byte chars)</span>
        res.setEncoding<span style="color: #1e7c70;">(</span><span style="color: #823125;">'utf8'</span><span style="color: #1e7c70;">);</span>
        <span style="color: #46830d;">// incrementally capture the incoming response body</span>
        <span style="color: #4f76ac;">var</span> body <span style="color: #1e7c70;">=</span> <span style="color: #823125;">''</span><span style="color: #1e7c70;">;</span>
        res.on<span style="color: #1e7c70;">(</span><span style="color: #823125;">'data'</span><span style="color: #1e7c70;">,</span> <span style="color: #4f76ac;">function</span><span style="color: #1e7c70;">(</span>d<span style="color: #1e7c70;">)</span> <span style="color: #1e7c70;">{</span>
            body <span style="color: #1e7c70;">+=</span> d<span style="color: #1e7c70;">;</span>
        <span style="color: #1e7c70;">});</span>
        <span style="color: #46830d;">// do whatever we want with the response once it's done</span>
        res.on<span style="color: #1e7c70;">(</span><span style="color: #823125;">'end'</span><span style="color: #1e7c70;">,</span> <span style="color: #4f76ac;">function</span><span style="color: #1e7c70;">()</span> <span style="color: #1e7c70;">{</span>
            <span style="color: #4f76ac;">try</span> <span style="color: #1e7c70;">{</span>
                <span style="color: #4f76ac;">var</span> parsed <span style="color: #1e7c70;">=</span> <span style="color: #4f76ac;">JSON</span>.parse<span style="color: #1e7c70;">(</span>body<span style="color: #1e7c70;">);</span>
            <span style="color: #1e7c70;">}</span> <span style="color: #4f76ac;">catch</span> <span style="color: #1e7c70;">(</span>err<span style="color: #1e7c70;">)</span> <span style="color: #1e7c70;">{</span>
                console.error<span style="color: #1e7c70;">(</span><span style="color: #823125;">'Unable to parse response as JSON'</span><span style="color: #1e7c70;">,</span> err<span style="color: #1e7c70;">);</span>
                <span style="color: #4f76ac;">return</span> cb<span style="color: #1e7c70;">(</span>err<span style="color: #1e7c70;">);</span>
            <span style="color: #1e7c70;">}</span>
            <span style="color: #46830d;">// pass the relevant data back to the callback</span>
            cb<span style="color: #1e7c70;">(</span><span style="color: #9b5f9b;">null</span><span style="color: #1e7c70;">,</span> <span style="color: #1e7c70;">{</span>
                email<span style="color: #1e7c70;">:</span> parsed.email<span style="color: #1e7c70;">,</span>
                password<span style="color: #1e7c70;">:</span> parsed.pass
            <span style="color: #1e7c70;">});</span>
        <span style="color: #1e7c70;">});</span>
    <span style="color: #1e7c70;">})</span>.on<span style="color: #1e7c70;">(</span><span style="color: #823125;">'error'</span><span style="color: #1e7c70;">,</span> <span style="color: #4f76ac;">function</span><span style="color: #1e7c70;">(</span>err<span style="color: #1e7c70;">)</span> <span style="color: #1e7c70;">{</span>
        <span style="color: #46830d;">// handle errors with the request itself</span>
        console.error<span style="color: #1e7c70;">(</span><span style="color: #823125;">'Error with the request:'</span><span style="color: #1e7c70;">,</span> err.message<span style="color: #1e7c70;">);</span>
        cb<span style="color: #1e7c70;">(</span>err<span style="color: #1e7c70;">);</span>
    <span style="color: #1e7c70;">});</span>
<span style="color: #1e7c70;">}</span>
 
 
    <span style="color: #4f76ac;">var</span> myDrivers <span style="color: #1e7c70;">=</span> getDrivers<span style="color: #1e7c70;">();</span>
    
</pre>
<p>&nbsp;</p>

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