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I've made a catalog and put 4 artists in it (Katy Perry, U2, Barry Manilow, Adele), but I'm not getting results back from the read or feed methods in the API:

:: http://developer.echonest.com/api/v4/catalog/feed?format=xml&api_key=xxx&id=yyy&results=15&start=0&bucket=news

:: http://developer.echonest.com/api/v4/catalog/read?format=xml&api_key=xxx&id=yyy&results=15&start=0&bucket=news

I verified that there were no pending_tickets in the catalog profile, and that each artist's ticket was marked as "complete."

This is the response I'm getting from both requests:

<response>
  <status>
     <version>4.2</version>
     <code>0</code>
     <message>Success</message>
  </status>

Is there some kind of delay before I should expect to get a response with some feed or read data in it?

Hey imbschlank,

The catalogs should update immediately. Does the catalog/profile call claim that there are items (the 'total'/'resolved' values)?

Can you provide the code snippets you used to create/populate the catalog. If you can provide the catalog ID, we can investigate a little deeper.

Sure! Here's what I'm doing.

Check to see if Catalog has been created:

send GET request: http://developer.echonest.com/api/v4/catalog/profile?format=json&api_key=xxx&name=test-12
Response:{"response": {"status": {"version": "4.2", "code": 5, "message": "This catalog does not exist"}}}

Create catalog:

send POST request: http://developer.echonest.com/api/v4/catalog/create
POSTVARS: format=json&api_key=xxx&name=test-12&type=artist
Response:{"response": {"status": {"version": "4.2", "code": 0, "message": "Success"}, "type": "artist", "name": "test-12", "id": "CAKFWCZ1332C5836CD"}}

Search for artist IDs:

send GET request: http://developer.echonest.com/api/v4/artist/search?format=json&api_key=xxx&name=U2
Response:{"response": {"status": {"version": "4.2", "code": 0, "message": "Success"}, "artists": [{"name": "U2", "id": "ARUJ5A41187FB3F5F1"}]}}

send GET request: http://developer.echonest.com/api/v4/artist/search?format=json&api_key=xxx&name=Barry+Manilow
Response:{"response": {"status": {"version": "4.2", "code": 0, "message": "Success"}, "artists": [{"name": "Barry Manilow", "id": "ARVZDOM1187B9B49C9"}]}}

send GET request: http://developer.echonest.com/api/v4/artist/search?format=json&api_key=xxx&name=Adele
Response:{"response": {"status": {"version": "4.2", "code": 0, "message": "Success"}, "artists": [{"name": "Adele", "id": "AR7J9AP1187FB5BD64"}]}}

send GET request: http://developer.echonest.com/api/v4/artist/search?format=json&api_key=xxx&name=Katy+Perry
Response:{"response": {"status": {"version": "4.2", "code": 0, "message": "Success"}, "artists": [{"name": "Katy Perry", "id": "AR0IVTL1187B9AD520"}]}}

Send a catalog update:

send POST request: http://developer.echonest.com/api/v4/catalog/update
POSTVARS: format=json&api_key=xxx&id=CAKFWCZ1332C5836CD&data=%5B%7B%22action%22%3A%22update%22%2C%22item%22%3A%7B%22item_id%22%3A%22ARUJ5A41187FB3F5F1%22%2C%22favorite%22%3Atrue%7D%7D%2C%7B%22action%22%3A%22update%22%2C%22item%22%3A%7B%22item_id%22%3A%22ARVZDOM1187B9B49C9%22%2C%22favorite%22%3Atrue%7D%7D%2C%7B%22action%22%3A%22update%22%2C%22item%22%3A%7B%22item_id%22%3A%22AR7J9AP1187FB5BD64%22%2C%22favorite%22%3Atrue%7D%7D%2C%7B%22action%22%3A%22update%22%2C%22item%22%3A%7B%22item_id%22%3A%22AR0IVTL1187B9AD520%22%2C%22favorite%22%3Atrue%7D%7D%5D&data_type=json
DATA: [{"action":"update","item":{"item_id":"ARUJ5A41187FB3F5F1","favorite":true}},{"action":"update","item":{"item_id":"ARVZDOM1187B9B49C9","favorite":true}},{"action":"update","item":{"item_id":"AR7J9AP1187FB5BD64","favorite":true}},{"action":"update","item":{"item_id":"AR0IVTL1187B9AD520","favorite":true}}]
Response:{"response": {"status": {"version": "4.2", "code": 0, "message": "Success"}, "ticket": "CAKFWCZ1332C5836CD524EDAC1F01845"}}

Load the profile by name:

send GET request: http://developer.echonest.com/api/v4/catalog/profile?format=json&api_key=xxx&name=test-12
Response:{"response": {"status": {"version": "4.2", "code": 0, "message": "Success"}, "catalog": {"resolved": 0, "pending_tickets": [], "name": "test-12", "total": 4, "type": "artist", "id": "CAKFWCZ1332C5836CD"}}}

Request read:

send GET request: http://developer.echonest.com/api/v4/catalog/read?format=json&api_key=xxx&id=CAKFWCZ1332C5836CD&results=15&start=0&bucket=news
Response:{"response": {"status": {"version": "4.2", "code": 0, "message": "Success"}, "catalog": {"start": 0, "total": 4, "name": "test-12", "items": [], "type": "artist", "id": "CAKFWCZ1332C5836CD"}}}

Request feed:

send GET request: http://developer.echonest.com/api/v4/catalog/read?format=json&api_key=xxx&id=CAKFWCZ1332C5836CD&results=15&start=0&bucket=news
Response:{"response": {"status": {"version": "4.2", "code": 0, "message": "Success"}, "catalog": {"start": 0, "total": 4, "name": "test-12", "items": [], "type": "artist", "id": "CAKFWCZ1332C5836CD"}}}

Make Another request:

Check to see if Catalog has been created:

send GET request: http://developer.echonest.com/api/v4/catalog/profile?format=json&api_key=xxx&name=test-12
Response:{"response": {"status": {"version": "4.2", "code": 0, "message": "Success"}, "catalog": {"resolved": 0, "pending_tickets": [], "name": "test-12", "total": 4, "type": "artist", "id": "CAKFWCZ1332C5836CD"}}}

Request read:

send GET request: http://developer.echonest.com/api/v4/catalog/read?format=json&api_key=xxx&id=CAKFWCZ1332C5836CD&results=15&start=0&bucket=news
Response:{"response": {"status": {"version": "4.2", "code": 0, "message": "Success"}, "catalog": {"start": 0, "total": 4, "name": "test-12", "items": [], "type": "artist", "id": "CAKFWCZ1332C5836CD"}}}

Request feed:

send GET request: http://developer.echonest.com/api/v4/catalog/read?format=json&api_key=xxx&id=CAKFWCZ1332C5836CD&results=15&start=0&bucket=news
Response:{"response": {"status": {"version": "4.2", "code": 0, "message": "Success"}, "catalog": {"start": 0, "total": 4, "name": "test-12", "items": [], "type": "artist", "id": "CAKFWCZ1332C5836CD"}}}

Please let me know if there's something I missed!

(On an unrelated note, is there any way to make my username in the forum just the first part of my email?)

hi imbschlank,

You need to post the items with something we can use to resolve them as well as the item_id. So, for example, you might want to POST an item block like this:

{'action': 'update', 'item': {'artist_id': 'ARUJ5A41187FB3F5F1', 'favorite': True, 'item_id': 'ARUJ5A41187FB3F5F1'}}

(The item_id does not have to be the artist_id, it's really any identifier you want to use to identify this item.) You can find a full list of the fields we will use to resolve an item in the catalog api documentation here. There's a bug on our end that is letting your POSTs get through with out this information, which we're looking at. I hope this helps you get started though, and thanks for pointing this out.

Tyler

That makes sense, and it's now working as expected after adding the artist_id into my request.

Thank you very much!

Hi there, I'm reading this thread since 2 hours and I still don't understand how should I update my catalog. I have create a .json block like this: [ { "action":"update", "item": { "artist_id": "ARN5NHX1187FB4F755", "favorite": True, "item_id": "TRVLWSG1383CC477F8" }} ]

Then I tried to upload it via Terminal:

curl -X POST "http://developer.echonest.com/api/v4/catalog/update" -F "api_key=My api key" -F "data_type=json" -F "format=json" -F "id=My catalog ID" -F "data=@/my path/ name of the file.json"

But the answer is always : "Invalid item block in the input: data is not properly json-encoded"

What's wrong!?

I'm a newbie, if anyone got time to answer me in an easy way...it would be very kind from you :)

Thank you in advance!

Radosky, it seems that your json body it's actually mal-formed.

The point is the "favorite": True should be "favorite": true (downcase). I tried it using ruby json parser and it worked out.

Hope it helps you.

Oh god...a T was the problem... thank you edulan :)

Oh god...a T was the problem... thank you edulan :)

Oh god...a T was the problem... thank you edulan :)

I've got another couple of questions: I would like to create a Catalog with songs that actually are not in the database. When I write the .json block I should write the artist ID and an item id, but I don't have an item id cause the songs are not in the database indeed.

1) What should I write in the "item_id" field? 2) In the field "track_number" if I write the number like "1" or "01" I get an error, why!?

I know these are stupid questions, forgive me :)