You need to implement your own oracle that does the server request on its own. Extend SuggestOracle and implement SuggestOracle.requestSuggestions(). Use your RPC call to retrieve the values and build a Response that you can pass to the provided callback.--
Currently your oracle is empty when the first key is typed and thus no suggestions can be shown. Once the second key is typed you see the results of the first key so you are always one behind (in fact it could even be worse if the internet connection is slow and RPC results arrive out of order).
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