TODO: TronGrid API support

[andelf]

See-also: #14

[andelf]

• Since almost all TronGrid APIs have paging support, a generator(yield) style might be useful
• Handle rate-limiter error
• Configurable retries(avoiding hitting rate-limiter)
• Must use a different request session(HTTP client instance), since it may have an API Key support soon
• Poll style for the event API

/cc @Badiboy

[spidemen]

please make a method when create a TRON object, since you get random api key cannot meet current highly TPS.
like ``` client = Tron(network='shasta', API_KEY='xxxxxx')

[andelf]

@spidemen How about:

https://tronpy.readthedocs.io/en/latest/client.html#using-trongrid-api-key

[spidemen]

TypeError: init() got an unexpected keyword argument 'HTTPProvider'

[MrNaif2018]

TypeError: init() got an unexpected keyword argument 'HTTPProvider'

You have probably passed it as a keyword argument, instead do
client = Tron(HTTPProvider(api_key="Your api_key here"))

As for the trongrid API, I wonder if it's of any use. I was able to implement all payment processing functions completely without it for example. Not sure what is useful in it

[MrNaif2018]

I don't think that's needed because of ability of good to use APIs way better than trongrid (i.e. Ankr giving 3 million requests per day for free).

P.S. @andelf Please enable "Build forked pull requests" in CircleCI project settings, it's hard to review pull requests without CI running on them