How to insert new column into CSV in nodejs
I have to add a new cell in each row. let's say I have a list of products CSV and I am fetching the image URL for each product it using some functionality and I need to update the URL corresponding to each product.
const writestream = fs.createWriteStream('src/working_file.csv',
flags: 'a'
);
writestream.write( image: imageURL );
the "image" is the new column name I want in my CSV file. "imageURL" is the URL of the produc I have in my hand
the above code is giving TypeError: Invalid non-string/buffer chunk
I got to read the CSV also for some reasons and I am using csv-parser for it.
node.js csv node-csv-parse
asked Nov 13 '18 at 7:05
m9m9mm9m9m
497512
add a comment |
I have to add a new cell in each row. let's say I have a list of products CSV and I am fetching the image URL for each product it using some functionality and I need to update the URL corresponding to each product.
const writestream = fs.createWriteStream('src/working_file.csv',
flags: 'a'
);
writestream.write( image: imageURL );
the "image" is the new column name I want in my CSV file. "imageURL" is the URL of the produc I have in my hand
the above code is giving TypeError: Invalid non-string/buffer chunk
I got to read the CSV also for some reasons and I am using csv-parser for it.
node.js csv node-csv-parse
asked Nov 13 '18 at 7:05
m9m9mm9m9m
497512
add a comment |
I have to add a new cell in each row. let's say I have a list of products CSV and I am fetching the image URL for each product it using some functionality and I need to update the URL corresponding to each product.
const writestream = fs.createWriteStream('src/working_file.csv',
flags: 'a'
);
writestream.write( image: imageURL );
the "image" is the new column name I want in my CSV file. "imageURL" is the URL of the produc I have in my hand
the above code is giving TypeError: Invalid non-string/buffer chunk
I got to read the CSV also for some reasons and I am using csv-parser for it.
node.js csv node-csv-parse
asked Nov 13 '18 at 7:05
m9m9mm9m9m
497512
I have to add a new cell in each row. let's say I have a list of products CSV and I am fetching the image URL for each product it using some functionality and I need to update the URL corresponding to each product.
const writestream = fs.createWriteStream('src/working_file.csv',
flags: 'a'
);
writestream.write( image: imageURL );
the "image" is the new column name I want in my CSV file. "imageURL" is the URL of the produc I have in my hand
the above code is giving TypeError: Invalid non-string/buffer chunk
I got to read the CSV also for some reasons and I am using csv-parser for it.
node.js csv node-csv-parse
node.js csv node-csv-parse
asked Nov 13 '18 at 7:05
m9m9mm9m9m
497512
asked Nov 13 '18 at 7:05
m9m9mm9m9m
497512
asked Nov 13 '18 at 7:05
m9m9mm9m9m
497512
asked Nov 13 '18 at 7:05
m9m9mm9m9m
497512
asked Nov 13 '18 at 7:05
m9m9mm9m9m
497512
497512
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
You need to add the imageURL as a string, not an object containing the imageURL. You might need to append a comma as well to separate it from the other columns, depending on the format of your file:
writestream.write("," + imageURL);
answered Nov 13 '18 at 13:31
mihaimihai
23.9k74068
this will add ,imageURL at the end of the file. but not at the end of the each line.
– m9m9m
Nov 14 '18 at 4:53
please edit the question and add all the relevant code, how am I supposed to know how you are writing each line.
– mihai
Nov 14 '18 at 6:39
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
You need to add the imageURL as a string, not an object containing the imageURL. You might need to append a comma as well to separate it from the other columns, depending on the format of your file:
writestream.write("," + imageURL);
answered Nov 13 '18 at 13:31
mihaimihai
23.9k74068
this will add ,imageURL at the end of the file. but not at the end of the each line.
– m9m9m
Nov 14 '18 at 4:53
please edit the question and add all the relevant code, how am I supposed to know how you are writing each line.
– mihai
Nov 14 '18 at 6:39
add a comment |
You need to add the imageURL as a string, not an object containing the imageURL. You might need to append a comma as well to separate it from the other columns, depending on the format of your file:
writestream.write("," + imageURL);
answered Nov 13 '18 at 13:31
mihaimihai
23.9k74068
this will add ,imageURL at the end of the file. but not at the end of the each line.
– m9m9m
Nov 14 '18 at 4:53
please edit the question and add all the relevant code, how am I supposed to know how you are writing each line.
– mihai
Nov 14 '18 at 6:39
add a comment |
You need to add the imageURL as a string, not an object containing the imageURL. You might need to append a comma as well to separate it from the other columns, depending on the format of your file:
writestream.write("," + imageURL);
answered Nov 13 '18 at 13:31
mihaimihai
23.9k74068
You need to add the imageURL as a string, not an object containing the imageURL. You might need to append a comma as well to separate it from the other columns, depending on the format of your file:
writestream.write("," + imageURL);
answered Nov 13 '18 at 13:31
mihaimihai
23.9k74068
answered Nov 13 '18 at 13:31
mihaimihai
23.9k74068
answered Nov 13 '18 at 13:31
mihaimihai
23.9k74068
answered Nov 13 '18 at 13:31
mihaimihai
23.9k74068
23.9k74068
this will add ,imageURL at the end of the file. but not at the end of the each line.
– m9m9m
Nov 14 '18 at 4:53
please edit the question and add all the relevant code, how am I supposed to know how you are writing each line.
– mihai
Nov 14 '18 at 6:39
add a comment |
this will add ,imageURL at the end of the file. but not at the end of the each line.
– m9m9m
Nov 14 '18 at 4:53
please edit the question and add all the relevant code, how am I supposed to know how you are writing each line.
– mihai
Nov 14 '18 at 6:39
this will add ,imageURL at the end of the file. but not at the end of the each line.
– m9m9m
Nov 14 '18 at 4:53
this will add ,imageURL at the end of the file. but not at the end of the each line.
– m9m9m
Nov 14 '18 at 4:53
please edit the question and add all the relevant code, how am I supposed to know how you are writing each line.
– mihai
Nov 14 '18 at 6:39
please edit the question and add all the relevant code, how am I supposed to know how you are writing each line.
– mihai
Nov 14 '18 at 6:39
add a comment |
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