Struct quandl_v3::prelude::DataQuery

pub struct DataQuery {
    pub database_code: String,
    pub dataset_code: String,
    // some fields omitted
}

Query the data from a specific dataset.

Fields

database_code: String

dataset_code: String

Methods

impl DataQuery

fn new<S1: AsRef<str>, S2: AsRef<str>>(
    database_code: S1,
    dataset_code: S2
) -> Self

Create a new data query.

Trait Implementations

impl Debug for DataQuery

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Clone for DataQuery

fn clone(&self) -> DataQuery

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl PartialEq for DataQuery

fn eq(&self, __arg_0: &DataQuery) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, __arg_0: &DataQuery) -> bool

This method tests for !=.

impl<T: DeserializeOwned + Clone> ApiCall<Vec<T>> for DataQuery

fn send(&self) -> Result<Vec<T>>

Submit a request to the Quandl's API and return a parsed object representing the data received in a Rust-friendly format.

fn fmt_prefix(&self) -> Option<String>

If applicable, returns the string that would be appended between the QUANDL_API_URL and the '?' character in a query URL.

fn fmt_arguments(&self) -> Option<String>

If applicable, returns the string that would be appended after the '?' character in a query URL.

fn url(&self) -> String

Returns the URL that will be used to submit the query through Quandl's API.

fn encoded_data(&self) -> Result<Vec<u8>>

Bypass the parsers and retrieve the byte stream received from Quandl directly.

impl ApiParameters for DataQuery

fn api_key<S: AsRef<str>>(&mut self, api_key: S) -> &mut Self

Include your personal Quandl API key with your query.

fn fmt(&self) -> Option<String>

Return a string which will be appended to the query's URL given that an api key has been provided.

impl DataParameters for DataQuery

fn rows(&mut self, n: usize) -> &mut Self

Specify the number of rows of data to be returned by this query.

fn limit(&mut self, n: usize) -> &mut Self

Specify the number of rows of data to be returned by this query.

fn order(&mut self, order: Order) -> &mut Self

Specify the ordering of the data.

fn collapse(&mut self, collapse: Frequency) -> &mut Self

Specify whether the data should be returned at a smaller frequency than avaiable.

fn transform(&mut self, transform: Transform) -> &mut Self

Specify how the data should be transformed by Quandl's server before being returned.

fn end_date(&mut self, year: u16, month: u8, day: u8) -> &mut Self

Specify the oldest data point to be returned.

fn start_date(&mut self, year: u16, month: u8, day: u8) -> &mut Self

Specify the earliest data point to be returned.

fn column_index(&mut self, index: usize) -> &mut Self

Specify which column to be returned.

fn fmt(&self) -> Option<String>

Return a string which will be appended to the query's URL given that at least one of the data parameters has been specified.

impl Has<DataArguments> for DataQuery

fn get_ref(&self) -> &DataArguments

impl HasMut<DataArguments> for DataQuery

fn get_mut(&mut self) -> &mut DataArguments

impl Has<ApiArguments> for DataQuery

fn get_ref(&self) -> &ApiArguments

impl HasMut<ApiArguments> for DataQuery

fn get_mut(&mut self) -> &mut ApiArguments