covid-19🔗ℹ

Yanying Wang <yanyingwang1@gmail.com>

Racket wrapper of QQ/Sina’s COVID-19 API

1 QQ

2 Sina

(require covid-19)

package: covid-19

(require covid-19) will do the same as (require covid-19/qq covid-19/sina).
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https://www.yanying.wang/daily-report/.

1 QQ🔗ℹ

(require covid-19/qq)

package: covid-19

parameter
(covid-19/reload-data/qq) → boolean?
(covid-19/reload-data/qq v) → void?
v : boolean?
= #t

Whether rerequest QQ’s COVID-19 API and reflush cached data or not, which data is used for all the following procedures.

procedure
(qq/data) → hash-eq?
procedure
(qq/data/china-total) → hash-eq?
procedure
(qq/data/china-add) → hash-eq?
procedure
(qq/data/all-provinces) → list?

Returns corresponding requested data.

procedure
(qq/get-region province-name city-name) → hash-eq?
province-name : (or/c string? symbol?)
city-name : (or/c string? symbol?)

Returns data of a specified province-name of China or data of its specified city-name if provided.

Examples:

> (qq/get-region '河南)
tcp-connect: host not found
  hostname: api.inews.qq.com
  port number: 443
  system error: Temporary failure in name resolution;
gai_err=-3
> (qq/get-region '河南 '郑州)
tcp-connect: host not found
  hostname: api.inews.qq.com
  port number: 443
  system error: Temporary failure in name resolution;
gai_err=-3

procedure
(qq/get-num node-data [type1 type2]) → number?
  node-data : (hash-eq?)
  type1 : (or/c 'confirm 'dead) = 'confirm
  type2 : (or/c 'today 'total) = 'today

Returns the number of type1 in type2 of the node-data, which node-data is the result of qq/get-province.

Example:

> (qq/get-num (qq/get-region '河南) 'confirm 'total)
tcp-connect: host not found
  hostname: api.inews.qq.com
  port number: 443
  system error: Temporary failure in name resolution;
gai_err=-3

procedure
(qq/get-num* province-name
[ type1
type2
#:city city-name]) → number?
  province-name : symbol?
  type1 : (or/c 'confirm 'dead) = 'confirm
  type2 : (or/c 'today 'total) = 'today
  city-name : string? = #f

Returns a number of type1 in type2 of a specified city-name of province-name.

Examples:

> (qq/get-num* '河南)
tcp-connect: host not found
  hostname: api.inews.qq.com
  port number: 443
  system error: Temporary failure in name resolution;
gai_err=-3
> (qq/get-num* '河南 'confirm 'total)
tcp-connect: host not found
  hostname: api.inews.qq.com
  port number: 443
  system error: Temporary failure in name resolution;
gai_err=-3
> (qq/get-num* '河南 'confirm 'total #:city '郑州)
tcp-connect: host not found
  hostname: api.inews.qq.com
  port number: 443
  system error: Temporary failure in name resolution;
gai_err=-3
> (qq/get-num* '上海 'confirm 'total #:city '徐汇)
tcp-connect: host not found
  hostname: api.inews.qq.com
  port number: 443
  system error: Temporary failure in name resolution;
gai_err=-3

procedure
(qq/sort+filter-by type1 type2) → list?
type1 : (or/c 'confirm 'dead)
type2 : (or/c 'today 'total)

Sorting and filting qq/data/all-provinces by type1 and type2.

Example:

> (qq/sort+filter-by 'confirm 'total)
tcp-connect: host not found
  hostname: api.inews.qq.com
  port number: 443
  system error: Temporary failure in name resolution;
gai_err=-3

2 Sina🔗ℹ

(require covid-19/sina)

package: covid-19

parameter
(covid-19/reload-data/sina) → boolean?
(covid-19/reload-data/sina v) → void?
v : boolean?
= #t

Whether rerequest Sina COVID-19 API and reflush cached data or not, which data is used for all the following procedures.

procedure
(sina/data) → hash-eq?
procedure
(sina/data/list) → list?
procedure
(sina/data/otherlist) → list?

Returns corresponding requested data.

procedure
(sina/contries/sort+filter-by type) → number?
type : (or/c 'conNum 'conadd 'deathNum 'deathadd)

Sorting and filting sina/data/otherlist by type.

Example:

> (sina/contries/sort+filter-by 'conNum)
tcp-connect: host not found
  hostname: interface.sina.cn
  port number: 443
  system error: Temporary failure in name resolution;
gai_err=-3