D3 barchart with ajax data - d3.js

Question

I am using the example chart from http://bl.ocks.org/mbostock/3885304 and rather than use the tsv example, I wish to use json from api call.
The chart does display, in the sense that it gives a large blob of what looks like a single bar.
The JSON returned from the api.php call looks like this
[{"id":"2","name":"wombat","total":"98000","record_date":"2016-01-21 00:00:00"},{"id":"5","name":"wombat","total":"96000","record_date":"2016-02-21 00:00:00"},{"id":"8","name":"wombat","total":"93000","record_date":"2016-03-21 00:00:00"},{"id":"11","name":"wombat","total":"91000","record_date":"2016-04-21 00:00:00"},{"id":"14","name":"wombat","total":"92000","record_date":"2016-05-21 00:00:00"},{"id":"17","name":"wombat","total":"83000","record_date":"2016-06-21 00:00:00"},{"id":"20","name":"wombat","total":"81000","record_date":"2016-07-21 00:00:00"}]
Plunker
Thanks
Kevin

Answer 1

Your json data array has the record_date property instead of event_time. But your code refers to event_time property. Try replacing them with the record_date.
I could not find no other errors in your code.
Here is the working Code Snippet:
var margin = {
top: 20,
right: 20,
bottom: 30,
left: 40
},
width = 960 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
var x = d3.scale.ordinal()
.rangeRoundBands([0, width], .1);
var y = d3.scale.linear()
.range([height, 0]);
var xAxis = d3.svg.axis()
.scale(x)
.orient("bottom");
var yAxis = d3.svg.axis()
.scale(y)
.orient("left")
.ticks(10, "");
var svg = d3.select("body").append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
var data = [{
"id": "2",
"name": "wombat",
"total": "98000",
"record_date": "2016-01-21 00:00:00"
}, {
"id": "5",
"name": "wombat",
"total": "96000",
"record_date": "2016-02-21 00:00:00"
}, {
"id": "8",
"name": "wombat",
"total": "93000",
"record_date": "2016-03-21 00:00:00"
}, {
"id": "11",
"name": "wombat",
"total": "91000",
"record_date": "2016-04-21 00:00:00"
}, {
"id": "14",
"name": "wombat",
"total": "92000",
"record_date": "2016-05-21 00:00:00"
}, {
"id": "17",
"name": "wombat",
"total": "83000",
"record_date": "2016-06-21 00:00:00"
}, {
"id": "20",
"name": "wombat",
"total": "81000",
"record_date": "2016-07-21 00:00:00"
}];
var k = [];
data.forEach(function(d) {
d.record_date = d.record_date;
d.total = +d.total;
k.push(d.record_date)
});
x.domain(data.map(function(d) {
return d.record_date;
}));
y.domain([0, d3.max(data, function(d) {
return d.total;
})]);
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis);
svg.append("g")
.attr("class", "y axis")
.call(yAxis)
.append("text")
.attr("transform", "rotate(-90)")
.attr("y", 6)
.attr("dy", ".71em")
.style("text-anchor", "end")
.text("Count");
svg.selectAll(".bar")
.data(data)
.enter().append("rect")
.attr("class", "bar")
.attr("x", function(d) {
return x(d.record_date);
})
.attr("width", x.rangeBand())
.attr("y", function(d) {
return y(d.total);
})
.attr("height", function(d) {
return height - y(d.total);
});
function type(d) {
d.total = +d.total;
return d;
}
.bar {
fill: steelblue;
}
.bar:hover {
fill: brown;
}
.axis {
font: 10px sans-serif;
}
.axis path,
.axis line {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
.x.axis path {
display: none;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.4.11/d3.min.js"></script>