D3.js - Can't read json file

I'm working on a d3.js project and I'm struggling with reading in my json file (my data doesn't load). I'm not sure if it's an issue with my code or my file.

My location.json file looks like this (first few lines)

[

{

"Latitude": 15.64624,

"Longitude": 32.46113,

"": ""

},

{

"Latitude": 37.67971,

"Longitude": -121.9076,

"": ""

},

{

"Latitude": 40.51361,

"Longitude": -74.25005999999998,

"": ""

}

]

My source code looks like this:

d3.json('../static/data/serial_killers/location.json', function(error, 

mapData) {

var features = mapData.features;



   map.selectAll('.geo-path') 

  .data(features)

  .enter().append('path')

  .attr('class', 'geo-path')

  .attr('d', path)

  .attr("visibility", "visible")

  .style("stroke-opacity", 1)

  .style("fill-opacity", 0.5);

  });

I also tried to tackle it this way, to no prevail

d3.json("../static/data/serial_killers/location.json", 

function(topology) {

map.selectAll('.geo-path')

.data(topology.features)

.enter()

.append('path')

.attr('class', 'geo-path')

.attr('d', path)

.attr("visibility", "visible")

.style("stroke-opacity", 1)

.style("fill-opacity", 0.5);

 });

any help would be greatly appreciated

edited Nov 19 '18 at 18:13

asked Nov 19 '18 at 18:06

William Stevens

That's not valid JSON. There's a trailing comma at the end, and no closing square bracket. How is the JSON file created? Are you composing it manually? Don't. PHP for instance has json_encode().
– Chris G
Nov 19 '18 at 18:07

@ChrisG sorry about that - the json i posted here was just a slice of a much longer file (no trailing comma, and the square bracket is included - i edited it in the code above). That being said, do you know what else may be wrong?
– William Stevens
Nov 19 '18 at 18:16

According to the docs, the .json command seems to return a promise and is to be used like: d3.json(url).then(function (mapData) { ... });
– Chris G
Nov 19 '18 at 18:22

If your running that outside of a webserver, ie from a file directory, its probably not going to work for security reasons. How are you running it?
– terpinmd
Nov 19 '18 at 18:32

@terpinmd i have the file saved in one of my folders on my laptop (so i guess locally) ... i didnt think this would be an issue..?
– William Stevens
Nov 19 '18 at 18:38

|
show 1 more comment

I'm working on a d3.js project and I'm struggling with reading in my json file (my data doesn't load). I'm not sure if it's an issue with my code or my file.

My location.json file looks like this (first few lines)

[

{

"Latitude": 15.64624,

"Longitude": 32.46113,

"": ""

},

{

"Latitude": 37.67971,

"Longitude": -121.9076,

"": ""

},

{

"Latitude": 40.51361,

"Longitude": -74.25005999999998,

"": ""

}

]

My source code looks like this:

d3.json('../static/data/serial_killers/location.json', function(error, 

mapData) {

var features = mapData.features;



   map.selectAll('.geo-path') 

  .data(features)

  .enter().append('path')

  .attr('class', 'geo-path')

  .attr('d', path)

  .attr("visibility", "visible")

  .style("stroke-opacity", 1)

  .style("fill-opacity", 0.5);

  });

I also tried to tackle it this way, to no prevail

d3.json("../static/data/serial_killers/location.json", 

function(topology) {

map.selectAll('.geo-path')

.data(topology.features)

.enter()

.append('path')

.attr('class', 'geo-path')

.attr('d', path)

.attr("visibility", "visible")

.style("stroke-opacity", 1)

.style("fill-opacity", 0.5);

 });

any help would be greatly appreciated

edited Nov 19 '18 at 18:13

asked Nov 19 '18 at 18:06

William Stevens

That's not valid JSON. There's a trailing comma at the end, and no closing square bracket. How is the JSON file created? Are you composing it manually? Don't. PHP for instance has json_encode().
– Chris G
Nov 19 '18 at 18:07

@ChrisG sorry about that - the json i posted here was just a slice of a much longer file (no trailing comma, and the square bracket is included - i edited it in the code above). That being said, do you know what else may be wrong?
– William Stevens
Nov 19 '18 at 18:16

According to the docs, the .json command seems to return a promise and is to be used like: d3.json(url).then(function (mapData) { ... });
– Chris G
Nov 19 '18 at 18:22

If your running that outside of a webserver, ie from a file directory, its probably not going to work for security reasons. How are you running it?
– terpinmd
Nov 19 '18 at 18:32

@terpinmd i have the file saved in one of my folders on my laptop (so i guess locally) ... i didnt think this would be an issue..?
– William Stevens
Nov 19 '18 at 18:38

|
show 1 more comment

I'm working on a d3.js project and I'm struggling with reading in my json file (my data doesn't load). I'm not sure if it's an issue with my code or my file.

My location.json file looks like this (first few lines)

[

{

"Latitude": 15.64624,

"Longitude": 32.46113,

"": ""

},

{

"Latitude": 37.67971,

"Longitude": -121.9076,

"": ""

},

{

"Latitude": 40.51361,

"Longitude": -74.25005999999998,

"": ""

}

]

My source code looks like this:

d3.json('../static/data/serial_killers/location.json', function(error, 

mapData) {

var features = mapData.features;



   map.selectAll('.geo-path') 

  .data(features)

  .enter().append('path')

  .attr('class', 'geo-path')

  .attr('d', path)

  .attr("visibility", "visible")

  .style("stroke-opacity", 1)

  .style("fill-opacity", 0.5);

  });

I also tried to tackle it this way, to no prevail

d3.json("../static/data/serial_killers/location.json", 

function(topology) {

map.selectAll('.geo-path')

.data(topology.features)

.enter()

.append('path')

.attr('class', 'geo-path')

.attr('d', path)

.attr("visibility", "visible")

.style("stroke-opacity", 1)

.style("fill-opacity", 0.5);

 });

any help would be greatly appreciated

edited Nov 19 '18 at 18:13

asked Nov 19 '18 at 18:06

William Stevens

I'm working on a d3.js project and I'm struggling with reading in my json file (my data doesn't load). I'm not sure if it's an issue with my code or my file.

My location.json file looks like this (first few lines)

[

{

"Latitude": 15.64624,

"Longitude": 32.46113,

"": ""

},

{

"Latitude": 37.67971,

"Longitude": -121.9076,

"": ""

},

{

"Latitude": 40.51361,

"Longitude": -74.25005999999998,

"": ""

}

]

My source code looks like this:

d3.json('../static/data/serial_killers/location.json', function(error, 

mapData) {

var features = mapData.features;



   map.selectAll('.geo-path') 

  .data(features)

  .enter().append('path')

  .attr('class', 'geo-path')

  .attr('d', path)

  .attr("visibility", "visible")

  .style("stroke-opacity", 1)

  .style("fill-opacity", 0.5);

  });

I also tried to tackle it this way, to no prevail

d3.json("../static/data/serial_killers/location.json", 

function(topology) {

map.selectAll('.geo-path')

.data(topology.features)

.enter()

.append('path')

.attr('class', 'geo-path')

.attr('d', path)

.attr("visibility", "visible")

.style("stroke-opacity", 1)

.style("fill-opacity", 0.5);

 });

any help would be greatly appreciated

javascript d3.js

edited Nov 19 '18 at 18:13

asked Nov 19 '18 at 18:06

William Stevens

edited Nov 19 '18 at 18:13

asked Nov 19 '18 at 18:06

William Stevens

edited Nov 19 '18 at 18:13

asked Nov 19 '18 at 18:06

William Stevens

asked Nov 19 '18 at 18:06

William Stevens

asked Nov 19 '18 at 18:06

William Stevens

That's not valid JSON. There's a trailing comma at the end, and no closing square bracket. How is the JSON file created? Are you composing it manually? Don't. PHP for instance has json_encode().
– Chris G
Nov 19 '18 at 18:07

@ChrisG sorry about that - the json i posted here was just a slice of a much longer file (no trailing comma, and the square bracket is included - i edited it in the code above). That being said, do you know what else may be wrong?
– William Stevens
Nov 19 '18 at 18:16

According to the docs, the .json command seems to return a promise and is to be used like: d3.json(url).then(function (mapData) { ... });
– Chris G
Nov 19 '18 at 18:22

If your running that outside of a webserver, ie from a file directory, its probably not going to work for security reasons. How are you running it?
– terpinmd
Nov 19 '18 at 18:32

@terpinmd i have the file saved in one of my folders on my laptop (so i guess locally) ... i didnt think this would be an issue..?
– William Stevens
Nov 19 '18 at 18:38

|
show 1 more comment

That's not valid JSON. There's a trailing comma at the end, and no closing square bracket. How is the JSON file created? Are you composing it manually? Don't. PHP for instance has json_encode().
– Chris G
Nov 19 '18 at 18:07

@ChrisG sorry about that - the json i posted here was just a slice of a much longer file (no trailing comma, and the square bracket is included - i edited it in the code above). That being said, do you know what else may be wrong?
– William Stevens
Nov 19 '18 at 18:16

According to the docs, the .json command seems to return a promise and is to be used like: d3.json(url).then(function (mapData) { ... });
– Chris G
Nov 19 '18 at 18:22

If your running that outside of a webserver, ie from a file directory, its probably not going to work for security reasons. How are you running it?
– terpinmd
Nov 19 '18 at 18:32

@terpinmd i have the file saved in one of my folders on my laptop (so i guess locally) ... i didnt think this would be an issue..?
– William Stevens
Nov 19 '18 at 18:38

That's not valid JSON. There's a trailing comma at the end, and no closing square bracket. How is the JSON file created? Are you composing it manually? Don't. PHP for instance has json_encode().
– Chris G
Nov 19 '18 at 18:07

@ChrisG sorry about that - the json i posted here was just a slice of a much longer file (no trailing comma, and the square bracket is included - i edited it in the code above). That being said, do you know what else may be wrong?
– William Stevens
Nov 19 '18 at 18:16

According to the docs, the .json command seems to return a promise and is to be used like: d3.json(url).then(function (mapData) { ... });
– Chris G
Nov 19 '18 at 18:22

If your running that outside of a webserver, ie from a file directory, its probably not going to work for security reasons. How are you running it?
– terpinmd
Nov 19 '18 at 18:32

@terpinmd i have the file saved in one of my folders on my laptop (so i guess locally) ... i didnt think this would be an issue..?
– William Stevens
Nov 19 '18 at 18:38

|
show 1 more comment

0

active

oldest

votes

Your Answer

StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");

StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});

}
});

draft saved

draft discarded

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53380337%2fd3-js-cant-read-json-file%23new-answer', 'question_page');
}
);

Post as a guest

Name

Required, but never shown

0

active

oldest

votes

0

active

oldest

votes

draft saved

draft discarded

Thanks for contributing an answer to Stack Overflow!

Please be sure to answer the question. Provide details and share your research!

But avoid …

Asking for help, clarification, or responding to other answers.

Making statements based on opinion; back them up with references or personal experience.

To learn more, see our tips on writing great answers.

Some of your past answers have not been well-received, and you're in danger of being blocked from answering.

Please pay close attention to the following guidance:

Please be sure to answer the question. Provide details and share your research!

But avoid …

Asking for help, clarification, or responding to other answers.

Making statements based on opinion; back them up with references or personal experience.

To learn more, see our tips on writing great answers.

draft saved

draft discarded

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Post as a guest

Name

Required, but never shown

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Post as a guest

Name

Required, but never shown

Name

Required, but never shown

Name

Required, but never shown

This page is only for reference, If you need detailed information, please check here

Search This Blog

Ufyukyu