I'm a newbie in Freebase Topic API. Currently I am looking for "How to retrieve specific set of data using Freebase Topic API?"
for e.g. if we request for particular information using following URL
https://www.googleapis.com/freebase/v1/topic/en/nicobar_scrubfowl?filter=/common/topic/description
we get ample of information like "id","property","values" array containing "text","lang","value" etc.. And I don't want all the information.
So how to retrieve particular set of information using topicAPI (like only "value" from "values" array OR only "provider" etc..)
thanks
If you want that level of control, you should investigate the MQLRead API.
There's no way to filter out those parts of the Topic API response. Every property value will have at least text, lang, id, creator and timestamp.
Why is this a problem in your application? As long as you're parsing this data with a JSON parser you will be able to access any of the data you want while ignoring the rest. If you're worried about the size of the response you can ask for a GZip response.
Related
Marketo Activity object API's missing High Watermark / Audit Fields. What is the potential way to identify changed records using UpdatedAt or ModifedDate like columns. None of the Activity Objects having this Audit column. What is best possible way to identify delta considering API limits
Also Is there any specific Object in Marketo for Field Metadata, which can be retrieved dynamically based on each Object filter to make the orchestration Dynamic. Basically looking for a system table in marketo which can be used as a data source and each Marketo object can be passed from Grid Variable to store the Field names in to a separate grid variable to use later
Did anyone face this kind of scenario before? Please share your experiences
Similar to this question, according to the Marketo Bulk Activity Extract REST API reference, the low- and high-watermark points are determined by a mandatory filter on createdAt. There is no concept of updating Activity records.
Regarding field metadata, you maybe need Custom Activities or Custom Objects? The API describes a Get Custom Activity Types endpoint which I think is the system table you are looking for.
I have a firestore database with data like this:
Now, I access this data with doc('mydoc').get().data() and it returns the data. But, even without the data changing, if I make the same call again and again, I get different response. I mean, the data is the same, but the order of the fields is different each time.
Here's my logs with two calls, see how the field order is random? Not just between objects in the same request, but between the same object in different requests.
I'm accessing this data in a Cloud Function and serving it as an API endpoint. I want to cache the response if the data (in the database) hasn't changed, but I can't, because the data (as returned by doc.get().data()) is constantly changing.
From what I could find, this might stem from ProtoBuf encoding.
My question: is there any way to get a consistent response to a firebase query when the underlying data isn't changing?
And if no, is my only option to JSON.stringify() the whole object before putting it into firestore? (I don't need to query within document objects.)
Edit for clarity: I am not expecting to know in advance the order of the fields being returned. I am expecting (hoping) that the order will be the same each time.
JSON object fields are unordered as per the JSON spec. Individual implementations of JSON are free to rearrange order however they see fit, and there's no surefire way to guarantee an order. See e.g. this answer.
This isn't a Firestore-specific problem, this is just generally how JSON objects work. You cannot and should not depend on the order of fields for any parsing or representation.
If display order is extremely important to you, you might want to investigate libraries like ordered-json.
As per REST framework, we can access resources using GET method, which is fine, if i know key my resource. For example, for getting transaction, if i pass transaction_id then i can get my resource for that transaction. But when i want to access all transactions between two dates, then how should i write my REST method using GET.
For getting transaciton of transaction_id : GET/transaction/id
For getting transaction between two dates ???
Also if there are other conditions, i need to put like latest 10 transactions, oldest 10 transaction, then how should i write my URL, which is main key in REST.
I tried to look on google but not able to find a way which is completely RESTful and solve my queries, so posting my question here. I have clear understanding of POST and DELETE, but if i want to do same update using PUT for some resource based on condition, then how to do it?
There are collection and item resources in REST.
If you want to get a representation of an item, you usually use an unique identifier:
/books/123
/books/isbn:32t4gf3e45e67 (not a valid isbn)
or with template
`/books/{id}
/books/isbn:{isbn}
If you want to get a representation of a collection, or a reduced collection you use the unique identifier of the collection and add some filters to it:
/books/since:{fromDate}/to:{toDate}/
/books/?since="{fromDate}"&to="{toDate}"
the filters can go into the path or into the queryString part of the url.
In the response you should add links with these URLs (aka HATEOAS), which the REST clients can follow. You should use link relations, for example IANA link relations to describe those links, and linked data, for example schema.org or to describe the data in your representation. There are other vocabs as well, for example GoodRelations, and ofc. you can write your own vocab as well for your application.
I am looking for advise. The following website
http://brfares.com/#home
provides fares information for UK train lines. I would like to use it to build a database of travel costs for seasons tickets from different locations. I have never done this kind of thing before but have experience with Python/Bash scripting and some HTML.
Viewing the source code for a typical query the actual fair information is not displayed in index.html. Can anyone provide a pointer as to how to go about scraping (a new word for me) the information.
This is the url for the query : http://brfares.com/querysimple?orig=SUY&dest=0415&rlc=
the response is a json object.
First you need to build a lookup table of all destinations codes. you can use the following link to do that http://brfares.com/ac_loc?term=. Do it for all the letters in the alphabet and then parse for a unique list.
Then you take them by the pair, execute the json query, parse the returned json and feed the data to a database.
Now you can do whatever you want with that database.
I have a task to extend my web application to provide users the ability to segment their own data (i.e choose their own fields and add their criteria using And/Or etc), so I'm creating something similar to a query builder tool but lighter. I'm not worrying about the front end for the moment, i am just trying to focus on how to do this in the back end.
My only thoughts so far are to store their "Segment" as an XML document (serialized in the DB) which contains all of their columns and criteria and how they map to the database, then when the segment is called, i have a mapping class which deserializes this xml document and maps the fields and builds a SQL query for this and then returns the query results. The problem i see with this is if the database setup changes (likely) then i have a serialized XML document which knows nothing about these changes.
Has anyone tacked a similar situation?
I had a similar problem and posted a question on here with what could be a potential solution to your own issue.
Dynamic linq query with multiple/unknown criteria
See how you get on with that.