Client side D3 line chart from node.js server data - node.js

Question

I'm trying to generate data on the server side (Node.JS) and then pass it via res.render to a view.ejs page for use in a simple D3 lineChart. I can hard code the data on the ejs page with a successful chart rendering. But, when I try to pass the data object from Node via res.render, D3.data doesn't seem to recognize the data.
Here is the server side route:
router.get("/view", function(req,res){
let data = [
{evalDate: 1598038171322, evalHypValue: 18},
{evalDate: 1608038171322, evalHypValue: 27},
{evalDate: 1618038171322, evalHypValue: 29},
{evalDate: 1628038171322, evalHypValue: 30},
];
res.render("view",
{
Data: JSON.stringify(data),
});
});
And here is the view.ejs with the D3 code:
<div class="" id="hyp_chart"></div>
<script>
//NOTE: hard coded data works with the D3
//let data = [
// {evalDate: 1598038171322, evalHypValue: 18},
// {evalDate: 1608038171322, evalHypValue: 27},
// {evalDate: 1618038171322, evalHypValue: 29},
// {evalDate: 1628038171322, evalHypValue: 30},
// ];
//But I can't get this next line to use my server side data as input to D3
let data = <%=JSON.parse(Data)%>
// set the dimensions and margins of the graph
var margin = {top: 20, right: 20, bottom: 30, left: 50},
width = 960 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
// parse the evalDate / time
var parseTime = d3.timeParse("%Q");
// set the ranges
var x = d3.scaleTime().range([0, width]);
var y = d3.scaleLinear().range([height, 0]);
// define the line
var valueline = d3.line()
.x(function(d) { return x(d.evalDate); })
.y(function(d) { return y(d.evalHypValue); });
// append the svg obgect to the body of the page
// appends a 'group' element to 'svg'
// moves the 'group' element to the top left margin
var svg = d3.select("#hyp_chart").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 + ")");
// gridlines in x axis function
function make_x_gridlines() {
return d3.axisBottom(x)
.ticks(5)
}
// gridlines in y axis function
function make_y_gridlines() {
return d3.axisLeft(y)
.ticks(5)
}
// Get the data
// format the data
data.forEach(function(d) {
d.evalDate = parseTime(d.evalDate);
d.evalHypValue = Number(d.evalHypValue);
});
// Scale the range of the data
x.domain(d3.extent(data, function(d) { return d.evalDate; }));
y.domain([0, d3.max(data, function(d) { return d.evalHypValue; })]);
// add the X gridlines
svg.append("g")
.attr("class", "grid")
.attr("transform", "translate(0," + height + ")")
.call(make_x_gridlines()
.tickSize(-height)
.tickFormat("")
)
// add the Y gridlines
svg.append("g")
.attr("class", "grid")
.call(make_y_gridlines()
.tickSize(-width)
.tickFormat("")
)
// add the valueline path.
svg.append("path")
.data([data])
// .datum(dataset)
.attr("class", "line")
.attr("d", valueline);
// add the X Axis
svg.append("g")
.attr("transform", "translate(0," + height + ")")
.call(d3.axisBottom(x));
// add the Y Axis
svg.append("g")
.call(d3.axisLeft(y));
</script>
Thank you!!!