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Provider

BaseProvider

Kind: global class

new BaseProvider([options])

Param
Type
Default
Description
[options]
object
​
​
options.url
string
​
Full json rpc http url
[options.timeout]
number
30*1000
Request time out in ms
[options.retry]
number
1
Retry number
[options.keepAlive]
boolean
false
Whether open the http keep-alive option
[options.logger]
object
​
Logger with info and error

baseProvider.requestId() ⇒ string

Gen a random json rpc id. It is used in call method, overwrite it to gen your own id.
Kind: instance method of BaseProvider

baseProvider.request(data) ⇒ Promise.<*>

Call a json rpc method with params
Kind: instance method of BaseProvider Returns: Promise.<*> - Json rpc method return value.
Param
Type
Description
data
object
​
data.method
string
Json rpc method name.
[data.params]
array
Json rpc method params.
Example
> await provider.request({method: 'cfx_epochNumber'});
> await provider.request({method: 'cfx_getBlockByHash', params: [blockHash]});

baseProvider.call(method, ...params) ⇒ Promise.<*>

Call a json rpc method with params
Kind: instance method of BaseProvider Returns: Promise.<*> - Json rpc method return value.
Param
Type
Description
method
string
Json rpc method name.
...params
Array.<any>
Json rpc method params.
Example
> await provider.call('cfx_epochNumber');
> await provider.call('cfx_getBlockByHash', blockHash);

baseProvider.send(method, [params]) ⇒ Promise.<*>

Send a json rpc method request
Kind: instance method of BaseProvider Returns: Promise.<*> - Json rpc method return value.
Param
Type
Description
method
string
Json rpc method name.
[params]
array
Json rpc method params.
Example
> await provider.send('cfx_epochNumber');
> await provider.send('cfx_getBlockByHash', [blockHash]);

baseProvider.batch(array) ⇒ Promise.<Array>

Batch call json rpc methods with params
Kind: instance method of BaseProvider​
Param
Type
Description
array
Array.<object>
Array of object with "method" and "params"
Example
> await provider.batch([
{ method: 'cfx_epochNumber' },
{ method: 'cfx_getBalance', params: ['cfxtest:aaawgvnhveawgvnhveawgvnhveawgvnhvey1umfzwp'] },
{ method: 'InValidInput' },
])
[ '0x3b734d', '0x22374d959c622f74728', RPCError: Method not found ]
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Last modified 1yr ago